./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label48+token_ring.10.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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/combinations/Problem05_label48+token_ring.10.cil-2.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 a7e5f5a1db53b7a411af936e12a734750394ab6a9f7be60b4c793a1fb07a048c --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 20:06:49,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 20:06:49,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 20:06:49,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 20:06:49,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 20:06:49,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 20:06:49,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 20:06:49,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 20:06:49,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 20:06:49,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 20:06:49,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 20:06:49,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 20:06:49,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 20:06:49,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 20:06:49,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 20:06:49,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 20:06:49,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 20:06:49,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 20:06:49,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 20:06:49,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 20:06:49,704 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 20:06:49,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 20:06:49,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 20:06:49,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 20:06:49,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 20:06:49,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 20:06:49,708 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 20:06:49,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 20:06:49,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 20:06:49,709 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 20:06:49,710 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 20:06:49,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 20:06:49,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 20:06:49,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 20:06:49,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 20:06:49,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 20:06:49,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 20:06:49,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 20:06:49,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 20:06:49,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 20:06:49,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 20:06:49,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 20:06:49,715 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 20:06:49,737 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 20:06:49,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 20:06:49,741 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 20:06:49,741 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 20:06:49,742 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 20:06:49,742 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 20:06:49,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 20:06:49,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 20:06:49,743 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 20:06:49,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 20:06:49,743 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 20:06:49,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 20:06:49,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 20:06:49,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 20:06:49,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 20:06:49,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 20:06:49,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 20:06:49,744 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 20:06:49,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 20:06:49,745 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 20:06:49,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 20:06:49,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 20:06:49,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 20:06:49,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 20:06:49,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 20:06:49,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 20:06:49,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 20:06:49,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 20:06:49,746 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 20:06:49,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 20:06:49,747 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 20:06:49,747 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 20:06:49,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 20:06:49,747 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e5f5a1db53b7a411af936e12a734750394ab6a9f7be60b4c793a1fb07a048c [2022-07-13 20:06:49,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 20:06:49,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 20:06:49,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 20:06:49,950 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 20:06:49,951 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 20:06:49,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label48+token_ring.10.cil-2.c [2022-07-13 20:06:50,004 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8618fb54e/b80491bb7dd84417a9005cbd76280418/FLAGc0468cb9e [2022-07-13 20:06:50,673 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 20:06:50,674 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label48+token_ring.10.cil-2.c [2022-07-13 20:06:50,711 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8618fb54e/b80491bb7dd84417a9005cbd76280418/FLAGc0468cb9e [2022-07-13 20:06:50,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8618fb54e/b80491bb7dd84417a9005cbd76280418 [2022-07-13 20:06:50,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 20:06:50,987 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 20:06:50,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 20:06:50,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 20:06:50,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 20:06:50,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 08:06:50" (1/1) ... [2022-07-13 20:06:50,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f95d88a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:06:50, skipping insertion in model container [2022-07-13 20:06:50,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 08:06:50" (1/1) ... [2022-07-13 20:06:50,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 20:06:51,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 20:06:52,324 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/combinations/Problem05_label48+token_ring.10.cil-2.c[375709,375722] [2022-07-13 20:06:52,350 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/combinations/Problem05_label48+token_ring.10.cil-2.c[383339,383352] [2022-07-13 20:06:52,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 20:06:52,560 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 20:06:53,141 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/combinations/Problem05_label48+token_ring.10.cil-2.c[375709,375722] [2022-07-13 20:06:53,149 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/combinations/Problem05_label48+token_ring.10.cil-2.c[383339,383352] [2022-07-13 20:06:53,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 20:06:53,219 INFO L208 MainTranslator]: Completed translation [2022-07-13 20:06:53,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:06:53 WrapperNode [2022-07-13 20:06:53,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 20:06:53,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 20:06:53,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 20:06:53,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 20:06:53,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:06:53" (1/1) ... [2022-07-13 20:06:53,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:06:53" (1/1) ... [2022-07-13 20:06:53,614 INFO L137 Inliner]: procedures = 64, calls = 71, calls flagged for inlining = 42, calls inlined = 42, statements flattened = 13083 [2022-07-13 20:06:53,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 20:06:53,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 20:06:53,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 20:06:53,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 20:06:53,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:06:53" (1/1) ... [2022-07-13 20:06:53,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:06:53" (1/1) ... [2022-07-13 20:06:53,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:06:53" (1/1) ... [2022-07-13 20:06:53,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:06:53" (1/1) ... [2022-07-13 20:06:53,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:06:53" (1/1) ... [2022-07-13 20:06:53,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:06:53" (1/1) ... [2022-07-13 20:06:53,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:06:53" (1/1) ... [2022-07-13 20:06:53,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 20:06:53,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 20:06:53,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 20:06:53,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 20:06:53,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:06:53" (1/1) ... [2022-07-13 20:06:53,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 20:06:53,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 20:06:53,988 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) [2022-07-13 20:06:54,005 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 [2022-07-13 20:06:54,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 20:06:54,018 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-13 20:06:54,019 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-13 20:06:54,019 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-13 20:06:54,019 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-13 20:06:54,019 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-13 20:06:54,019 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-13 20:06:54,019 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-13 20:06:54,019 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-13 20:06:54,019 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-13 20:06:54,020 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-13 20:06:54,020 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-13 20:06:54,020 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-13 20:06:54,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 20:06:54,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 20:06:54,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 20:06:54,212 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 20:06:54,213 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 20:06:58,802 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 20:06:58,822 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 20:06:58,823 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-07-13 20:06:58,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 08:06:58 BoogieIcfgContainer [2022-07-13 20:06:58,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 20:06:58,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 20:06:58,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 20:06:58,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 20:06:58,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 08:06:50" (1/3) ... [2022-07-13 20:06:58,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3df6be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 08:06:58, skipping insertion in model container [2022-07-13 20:06:58,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:06:53" (2/3) ... [2022-07-13 20:06:58,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3df6be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 08:06:58, skipping insertion in model container [2022-07-13 20:06:58,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 08:06:58" (3/3) ... [2022-07-13 20:06:58,833 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label48+token_ring.10.cil-2.c [2022-07-13 20:06:58,843 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 20:06:58,843 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-13 20:06:58,914 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 20:06:58,921 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5e7f94f3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2be25350 [2022-07-13 20:06:58,921 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-13 20:06:58,942 INFO L276 IsEmpty]: Start isEmpty. Operand has 2515 states, 2482 states have (on average 1.8456889605157132) internal successors, (4581), 2485 states have internal predecessors, (4581), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-07-13 20:06:58,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-13 20:06:58,957 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:06:58,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 20:06:58,958 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:06:58,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:06:58,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1879597445, now seen corresponding path program 1 times [2022-07-13 20:06:58,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:06:58,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598246512] [2022-07-13 20:06:58,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:06:58,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:06:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:59,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:06:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:59,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 20:06:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:59,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 20:06:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:59,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-13 20:06:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:59,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-13 20:06:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:59,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:06:59,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:06:59,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598246512] [2022-07-13 20:06:59,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598246512] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:06:59,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:06:59,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 20:06:59,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645461420] [2022-07-13 20:06:59,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:06:59,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 20:06:59,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:06:59,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 20:06:59,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 20:06:59,371 INFO L87 Difference]: Start difference. First operand has 2515 states, 2482 states have (on average 1.8456889605157132) internal successors, (4581), 2485 states have internal predecessors, (4581), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:00,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:07:00,584 INFO L93 Difference]: Finished difference Result 5140 states and 9446 transitions. [2022-07-13 20:07:00,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 20:07:00,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-13 20:07:00,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:07:00,601 INFO L225 Difference]: With dead ends: 5140 [2022-07-13 20:07:00,601 INFO L226 Difference]: Without dead ends: 2568 [2022-07-13 20:07:00,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-13 20:07:00,608 INFO L413 NwaCegarLoop]: 4589 mSDtfsCounter, 882 mSDsluCounter, 12413 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 17002 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 20:07:00,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 17002 Invalid, 674 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 20:07:00,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2568 states. [2022-07-13 20:07:00,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2568 to 2448. [2022-07-13 20:07:00,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 2416 states have (on average 1.830298013245033) internal successors, (4422), 2418 states have internal predecessors, (4422), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-07-13 20:07:00,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 4470 transitions. [2022-07-13 20:07:00,705 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 4470 transitions. Word has length 156 [2022-07-13 20:07:00,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:07:00,705 INFO L495 AbstractCegarLoop]: Abstraction has 2448 states and 4470 transitions. [2022-07-13 20:07:00,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:00,706 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 4470 transitions. [2022-07-13 20:07:00,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-13 20:07:00,708 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:07:00,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 20:07:00,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 20:07:00,709 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:07:00,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:07:00,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1988815353, now seen corresponding path program 1 times [2022-07-13 20:07:00,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:07:00,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523607533] [2022-07-13 20:07:00,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:07:00,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:07:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:00,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:07:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:00,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 20:07:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:00,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 20:07:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:00,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-13 20:07:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:00,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-13 20:07:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:00,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:07:00,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:07:00,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523607533] [2022-07-13 20:07:00,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523607533] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:07:00,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:07:00,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 20:07:00,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158108187] [2022-07-13 20:07:00,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:07:00,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 20:07:00,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:07:00,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 20:07:00,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 20:07:00,870 INFO L87 Difference]: Start difference. First operand 2448 states and 4470 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:03,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:07:03,464 INFO L93 Difference]: Finished difference Result 3341 states and 5922 transitions. [2022-07-13 20:07:03,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 20:07:03,464 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-13 20:07:03,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:07:03,475 INFO L225 Difference]: With dead ends: 3341 [2022-07-13 20:07:03,475 INFO L226 Difference]: Without dead ends: 3032 [2022-07-13 20:07:03,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 20:07:03,478 INFO L413 NwaCegarLoop]: 4828 mSDtfsCounter, 5220 mSDsluCounter, 17450 mSDsCounter, 0 mSdLazyCounter, 2804 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5237 SdHoareTripleChecker+Valid, 22278 SdHoareTripleChecker+Invalid, 2881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-13 20:07:03,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5237 Valid, 22278 Invalid, 2881 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [77 Valid, 2804 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-13 20:07:03,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2022-07-13 20:07:03,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 2775. [2022-07-13 20:07:03,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 2714 states have (on average 1.8043478260869565) internal successors, (4897), 2718 states have internal predecessors, (4897), 45 states have call successors, (45), 12 states have call predecessors, (45), 14 states have return successors, (52), 46 states have call predecessors, (52), 45 states have call successors, (52) [2022-07-13 20:07:03,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 4994 transitions. [2022-07-13 20:07:03,545 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 4994 transitions. Word has length 156 [2022-07-13 20:07:03,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:07:03,545 INFO L495 AbstractCegarLoop]: Abstraction has 2775 states and 4994 transitions. [2022-07-13 20:07:03,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:03,546 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 4994 transitions. [2022-07-13 20:07:03,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-13 20:07:03,548 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:07:03,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 20:07:03,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 20:07:03,549 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:07:03,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:07:03,549 INFO L85 PathProgramCache]: Analyzing trace with hash 371374903, now seen corresponding path program 1 times [2022-07-13 20:07:03,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:07:03,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381685084] [2022-07-13 20:07:03,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:07:03,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:07:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:03,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:07:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:03,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 20:07:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:03,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 20:07:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:03,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-13 20:07:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:03,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-13 20:07:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:03,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:07:03,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:07:03,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381685084] [2022-07-13 20:07:03,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381685084] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:07:03,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:07:03,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 20:07:03,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110015238] [2022-07-13 20:07:03,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:07:03,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 20:07:03,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:07:03,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 20:07:03,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 20:07:03,668 INFO L87 Difference]: Start difference. First operand 2775 states and 4994 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:06,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:07:06,288 INFO L93 Difference]: Finished difference Result 4476 states and 7734 transitions. [2022-07-13 20:07:06,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 20:07:06,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-13 20:07:06,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:07:06,303 INFO L225 Difference]: With dead ends: 4476 [2022-07-13 20:07:06,304 INFO L226 Difference]: Without dead ends: 3842 [2022-07-13 20:07:06,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 20:07:06,309 INFO L413 NwaCegarLoop]: 4755 mSDtfsCounter, 5260 mSDsluCounter, 17375 mSDsCounter, 0 mSdLazyCounter, 2656 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5277 SdHoareTripleChecker+Valid, 22130 SdHoareTripleChecker+Invalid, 2740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-13 20:07:06,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5277 Valid, 22130 Invalid, 2740 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 2656 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-13 20:07:06,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3842 states. [2022-07-13 20:07:06,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3842 to 3377. [2022-07-13 20:07:06,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3377 states, 3264 states have (on average 1.7634803921568627) internal successors, (5756), 3270 states have internal predecessors, (5756), 83 states have call successors, (83), 24 states have call predecessors, (83), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2022-07-13 20:07:06,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3377 states to 3377 states and 5939 transitions. [2022-07-13 20:07:06,491 INFO L78 Accepts]: Start accepts. Automaton has 3377 states and 5939 transitions. Word has length 156 [2022-07-13 20:07:06,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:07:06,492 INFO L495 AbstractCegarLoop]: Abstraction has 3377 states and 5939 transitions. [2022-07-13 20:07:06,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:06,492 INFO L276 IsEmpty]: Start isEmpty. Operand 3377 states and 5939 transitions. [2022-07-13 20:07:06,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-13 20:07:06,494 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:07:06,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 20:07:06,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 20:07:06,495 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:07:06,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:07:06,495 INFO L85 PathProgramCache]: Analyzing trace with hash 734841401, now seen corresponding path program 1 times [2022-07-13 20:07:06,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:07:06,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422637343] [2022-07-13 20:07:06,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:07:06,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:07:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:06,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:07:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:06,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 20:07:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:06,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 20:07:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:06,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-13 20:07:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:06,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-13 20:07:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:06,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:07:06,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:07:06,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422637343] [2022-07-13 20:07:06,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422637343] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:07:06,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:07:06,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 20:07:06,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785340253] [2022-07-13 20:07:06,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:07:06,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 20:07:06,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:07:06,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 20:07:06,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 20:07:06,662 INFO L87 Difference]: Start difference. First operand 3377 states and 5939 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:09,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:07:09,156 INFO L93 Difference]: Finished difference Result 6696 states and 11267 transitions. [2022-07-13 20:07:09,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 20:07:09,157 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-13 20:07:09,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:07:09,177 INFO L225 Difference]: With dead ends: 6696 [2022-07-13 20:07:09,177 INFO L226 Difference]: Without dead ends: 5460 [2022-07-13 20:07:09,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 20:07:09,184 INFO L413 NwaCegarLoop]: 4819 mSDtfsCounter, 5219 mSDsluCounter, 17450 mSDsCounter, 0 mSdLazyCounter, 2800 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5236 SdHoareTripleChecker+Valid, 22269 SdHoareTripleChecker+Invalid, 2880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-13 20:07:09,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5236 Valid, 22269 Invalid, 2880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 2800 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-13 20:07:09,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5460 states. [2022-07-13 20:07:09,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5460 to 4583. [2022-07-13 20:07:09,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4583 states, 4366 states have (on average 1.712322491983509) internal successors, (7476), 4376 states have internal predecessors, (7476), 159 states have call successors, (159), 48 states have call predecessors, (159), 56 states have return successors, (202), 166 states have call predecessors, (202), 159 states have call successors, (202) [2022-07-13 20:07:09,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4583 states to 4583 states and 7837 transitions. [2022-07-13 20:07:09,355 INFO L78 Accepts]: Start accepts. Automaton has 4583 states and 7837 transitions. Word has length 156 [2022-07-13 20:07:09,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:07:09,356 INFO L495 AbstractCegarLoop]: Abstraction has 4583 states and 7837 transitions. [2022-07-13 20:07:09,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:09,360 INFO L276 IsEmpty]: Start isEmpty. Operand 4583 states and 7837 transitions. [2022-07-13 20:07:09,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-13 20:07:09,363 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:07:09,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 20:07:09,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 20:07:09,364 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:07:09,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:07:09,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1023660791, now seen corresponding path program 1 times [2022-07-13 20:07:09,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:07:09,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721428399] [2022-07-13 20:07:09,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:07:09,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:07:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:09,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:07:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:09,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 20:07:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:09,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 20:07:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:09,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-13 20:07:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:09,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-13 20:07:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:09,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:07:09,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:07:09,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721428399] [2022-07-13 20:07:09,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721428399] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:07:09,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:07:09,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 20:07:09,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71322615] [2022-07-13 20:07:09,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:07:09,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 20:07:09,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:07:09,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 20:07:09,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 20:07:09,502 INFO L87 Difference]: Start difference. First operand 4583 states and 7837 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:12,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:07:12,182 INFO L93 Difference]: Finished difference Result 11134 states and 18347 transitions. [2022-07-13 20:07:12,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 20:07:12,182 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-13 20:07:12,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:07:12,211 INFO L225 Difference]: With dead ends: 11134 [2022-07-13 20:07:12,211 INFO L226 Difference]: Without dead ends: 8692 [2022-07-13 20:07:12,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 20:07:12,221 INFO L413 NwaCegarLoop]: 4816 mSDtfsCounter, 5219 mSDsluCounter, 17450 mSDsCounter, 0 mSdLazyCounter, 2794 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5236 SdHoareTripleChecker+Valid, 22266 SdHoareTripleChecker+Invalid, 2874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-13 20:07:12,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5236 Valid, 22266 Invalid, 2874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 2794 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-13 20:07:12,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8692 states. [2022-07-13 20:07:12,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8692 to 7001. [2022-07-13 20:07:12,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7001 states, 6576 states have (on average 1.6611922141119222) internal successors, (10924), 6594 states have internal predecessors, (10924), 311 states have call successors, (311), 96 states have call predecessors, (311), 112 states have return successors, (424), 326 states have call predecessors, (424), 311 states have call successors, (424) [2022-07-13 20:07:12,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7001 states to 7001 states and 11659 transitions. [2022-07-13 20:07:12,463 INFO L78 Accepts]: Start accepts. Automaton has 7001 states and 11659 transitions. Word has length 156 [2022-07-13 20:07:12,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:07:12,464 INFO L495 AbstractCegarLoop]: Abstraction has 7001 states and 11659 transitions. [2022-07-13 20:07:12,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:12,465 INFO L276 IsEmpty]: Start isEmpty. Operand 7001 states and 11659 transitions. [2022-07-13 20:07:12,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-13 20:07:12,468 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:07:12,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 20:07:12,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 20:07:12,469 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:07:12,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:07:12,469 INFO L85 PathProgramCache]: Analyzing trace with hash 478788217, now seen corresponding path program 1 times [2022-07-13 20:07:12,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:07:12,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143071615] [2022-07-13 20:07:12,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:07:12,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:07:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:12,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:07:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:12,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 20:07:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:12,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 20:07:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:12,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-13 20:07:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:12,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-13 20:07:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:12,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:07:12,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:07:12,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143071615] [2022-07-13 20:07:12,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143071615] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:07:12,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:07:12,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 20:07:12,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460540070] [2022-07-13 20:07:12,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:07:12,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 20:07:12,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:07:12,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 20:07:12,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 20:07:12,599 INFO L87 Difference]: Start difference. First operand 7001 states and 11659 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:15,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:07:15,400 INFO L93 Difference]: Finished difference Result 20008 states and 32563 transitions. [2022-07-13 20:07:15,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 20:07:15,400 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-13 20:07:15,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:07:15,440 INFO L225 Difference]: With dead ends: 20008 [2022-07-13 20:07:15,440 INFO L226 Difference]: Without dead ends: 15148 [2022-07-13 20:07:15,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 20:07:15,456 INFO L413 NwaCegarLoop]: 4813 mSDtfsCounter, 5219 mSDsluCounter, 17450 mSDsCounter, 0 mSdLazyCounter, 2788 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5236 SdHoareTripleChecker+Valid, 22263 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-13 20:07:15,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5236 Valid, 22263 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 2788 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-13 20:07:15,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15148 states. [2022-07-13 20:07:15,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15148 to 11851. [2022-07-13 20:07:15,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11851 states, 11010 states have (on average 1.620345140781108) internal successors, (17840), 11044 states have internal predecessors, (17840), 615 states have call successors, (615), 192 states have call predecessors, (615), 224 states have return successors, (922), 646 states have call predecessors, (922), 615 states have call successors, (922) [2022-07-13 20:07:15,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11851 states to 11851 states and 19377 transitions. [2022-07-13 20:07:15,869 INFO L78 Accepts]: Start accepts. Automaton has 11851 states and 19377 transitions. Word has length 156 [2022-07-13 20:07:15,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:07:15,869 INFO L495 AbstractCegarLoop]: Abstraction has 11851 states and 19377 transitions. [2022-07-13 20:07:15,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:15,870 INFO L276 IsEmpty]: Start isEmpty. Operand 11851 states and 19377 transitions. [2022-07-13 20:07:15,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-13 20:07:15,875 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:07:15,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 20:07:15,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 20:07:15,876 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:07:15,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:07:15,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1153948343, now seen corresponding path program 1 times [2022-07-13 20:07:15,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:07:15,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251393689] [2022-07-13 20:07:15,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:07:15,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:07:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:15,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:07:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:15,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 20:07:15,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:15,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 20:07:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:15,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-13 20:07:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:15,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-13 20:07:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:15,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:07:15,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:07:15,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251393689] [2022-07-13 20:07:15,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251393689] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:07:15,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:07:15,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 20:07:15,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139125385] [2022-07-13 20:07:15,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:07:15,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 20:07:15,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:07:15,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 20:07:15,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 20:07:15,976 INFO L87 Difference]: Start difference. First operand 11851 states and 19377 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:19,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:07:19,531 INFO L93 Difference]: Finished difference Result 37754 states and 61183 transitions. [2022-07-13 20:07:19,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 20:07:19,531 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-13 20:07:19,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:07:19,602 INFO L225 Difference]: With dead ends: 37754 [2022-07-13 20:07:19,602 INFO L226 Difference]: Without dead ends: 28044 [2022-07-13 20:07:19,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 20:07:19,628 INFO L413 NwaCegarLoop]: 4810 mSDtfsCounter, 5219 mSDsluCounter, 17450 mSDsCounter, 0 mSdLazyCounter, 2782 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5236 SdHoareTripleChecker+Valid, 22260 SdHoareTripleChecker+Invalid, 2862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-13 20:07:19,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5236 Valid, 22260 Invalid, 2862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 2782 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-13 20:07:19,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28044 states. [2022-07-13 20:07:20,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28044 to 21581. [2022-07-13 20:07:20,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21581 states, 19908 states have (on average 1.593128390596745) internal successors, (31716), 19974 states have internal predecessors, (31716), 1223 states have call successors, (1223), 384 states have call predecessors, (1223), 448 states have return successors, (2080), 1286 states have call predecessors, (2080), 1223 states have call successors, (2080) [2022-07-13 20:07:20,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21581 states to 21581 states and 35019 transitions. [2022-07-13 20:07:20,533 INFO L78 Accepts]: Start accepts. Automaton has 21581 states and 35019 transitions. Word has length 156 [2022-07-13 20:07:20,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:07:20,533 INFO L495 AbstractCegarLoop]: Abstraction has 21581 states and 35019 transitions. [2022-07-13 20:07:20,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:20,534 INFO L276 IsEmpty]: Start isEmpty. Operand 21581 states and 35019 transitions. [2022-07-13 20:07:20,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-13 20:07:20,547 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:07:20,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 20:07:20,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 20:07:20,549 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:07:20,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:07:20,550 INFO L85 PathProgramCache]: Analyzing trace with hash 205896377, now seen corresponding path program 1 times [2022-07-13 20:07:20,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:07:20,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838304345] [2022-07-13 20:07:20,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:07:20,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:07:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:20,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:07:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:20,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 20:07:20,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:20,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 20:07:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:20,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-13 20:07:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:20,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-13 20:07:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:20,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:07:20,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:07:20,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838304345] [2022-07-13 20:07:20,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838304345] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:07:20,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:07:20,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 20:07:20,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937352410] [2022-07-13 20:07:20,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:07:20,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 20:07:20,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:07:20,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 20:07:20,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 20:07:20,668 INFO L87 Difference]: Start difference. First operand 21581 states and 35019 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:23,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:07:23,049 INFO L93 Difference]: Finished difference Result 47941 states and 78380 transitions. [2022-07-13 20:07:23,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 20:07:23,050 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-13 20:07:23,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:07:23,138 INFO L225 Difference]: With dead ends: 47941 [2022-07-13 20:07:23,138 INFO L226 Difference]: Without dead ends: 28499 [2022-07-13 20:07:23,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-13 20:07:23,185 INFO L413 NwaCegarLoop]: 4496 mSDtfsCounter, 4916 mSDsluCounter, 16635 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4934 SdHoareTripleChecker+Valid, 21131 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 20:07:23,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4934 Valid, 21131 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 20:07:23,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28499 states. [2022-07-13 20:07:24,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28499 to 21581. [2022-07-13 20:07:24,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21581 states, 19908 states have (on average 1.5898633715089412) internal successors, (31651), 19974 states have internal predecessors, (31651), 1223 states have call successors, (1223), 384 states have call predecessors, (1223), 448 states have return successors, (2080), 1286 states have call predecessors, (2080), 1223 states have call successors, (2080) [2022-07-13 20:07:24,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21581 states to 21581 states and 34954 transitions. [2022-07-13 20:07:24,228 INFO L78 Accepts]: Start accepts. Automaton has 21581 states and 34954 transitions. Word has length 156 [2022-07-13 20:07:24,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:07:24,228 INFO L495 AbstractCegarLoop]: Abstraction has 21581 states and 34954 transitions. [2022-07-13 20:07:24,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:24,229 INFO L276 IsEmpty]: Start isEmpty. Operand 21581 states and 34954 transitions. [2022-07-13 20:07:24,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-13 20:07:24,239 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:07:24,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 20:07:24,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 20:07:24,239 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:07:24,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:07:24,240 INFO L85 PathProgramCache]: Analyzing trace with hash -378875273, now seen corresponding path program 1 times [2022-07-13 20:07:24,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:07:24,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662993051] [2022-07-13 20:07:24,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:07:24,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:07:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:24,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:07:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:24,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 20:07:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:24,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 20:07:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:24,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-13 20:07:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:24,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-13 20:07:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:24,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:07:24,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:07:24,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662993051] [2022-07-13 20:07:24,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662993051] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:07:24,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:07:24,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 20:07:24,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193630046] [2022-07-13 20:07:24,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:07:24,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 20:07:24,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:07:24,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 20:07:24,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 20:07:24,338 INFO L87 Difference]: Start difference. First operand 21581 states and 34954 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:29,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:07:29,181 INFO L93 Difference]: Finished difference Result 73117 states and 118447 transitions. [2022-07-13 20:07:29,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 20:07:29,181 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-13 20:07:29,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:07:29,366 INFO L225 Difference]: With dead ends: 73117 [2022-07-13 20:07:29,367 INFO L226 Difference]: Without dead ends: 53677 [2022-07-13 20:07:29,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 20:07:29,418 INFO L413 NwaCegarLoop]: 4794 mSDtfsCounter, 5247 mSDsluCounter, 17450 mSDsCounter, 0 mSdLazyCounter, 2678 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5264 SdHoareTripleChecker+Valid, 22244 SdHoareTripleChecker+Invalid, 2762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 20:07:29,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5264 Valid, 22244 Invalid, 2762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2678 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 20:07:29,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53677 states. [2022-07-13 20:07:31,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53677 to 41230. [2022-07-13 20:07:31,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41230 states, 37893 states have (on average 1.5734304488955744) internal successors, (59622), 38023 states have internal predecessors, (59622), 2439 states have call successors, (2439), 768 states have call predecessors, (2439), 896 states have return successors, (4882), 2566 states have call predecessors, (4882), 2439 states have call successors, (4882) [2022-07-13 20:07:31,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41230 states to 41230 states and 66943 transitions. [2022-07-13 20:07:31,626 INFO L78 Accepts]: Start accepts. Automaton has 41230 states and 66943 transitions. Word has length 156 [2022-07-13 20:07:31,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:07:31,626 INFO L495 AbstractCegarLoop]: Abstraction has 41230 states and 66943 transitions. [2022-07-13 20:07:31,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:31,626 INFO L276 IsEmpty]: Start isEmpty. Operand 41230 states and 66943 transitions. [2022-07-13 20:07:31,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-13 20:07:31,643 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:07:31,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 20:07:31,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 20:07:31,644 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:07:31,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:07:31,644 INFO L85 PathProgramCache]: Analyzing trace with hash -808533579, now seen corresponding path program 1 times [2022-07-13 20:07:31,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:07:31,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357106679] [2022-07-13 20:07:31,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:07:31,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:07:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:31,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:07:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:31,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 20:07:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:31,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 20:07:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:31,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-13 20:07:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:31,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-13 20:07:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:31,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:07:31,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:07:31,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357106679] [2022-07-13 20:07:31,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357106679] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:07:31,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:07:31,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 20:07:31,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581089678] [2022-07-13 20:07:31,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:07:31,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 20:07:31,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:07:31,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 20:07:31,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 20:07:31,759 INFO L87 Difference]: Start difference. First operand 41230 states and 66943 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:40,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:07:40,524 INFO L93 Difference]: Finished difference Result 144096 states and 235584 transitions. [2022-07-13 20:07:40,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 20:07:40,524 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-13 20:07:40,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:07:41,202 INFO L225 Difference]: With dead ends: 144096 [2022-07-13 20:07:41,213 INFO L226 Difference]: Without dead ends: 105007 [2022-07-13 20:07:41,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 20:07:41,354 INFO L413 NwaCegarLoop]: 4738 mSDtfsCounter, 5273 mSDsluCounter, 17375 mSDsCounter, 0 mSdLazyCounter, 2568 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5290 SdHoareTripleChecker+Valid, 22113 SdHoareTripleChecker+Invalid, 2656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-13 20:07:41,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5290 Valid, 22113 Invalid, 2656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2568 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-13 20:07:41,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105007 states. [2022-07-13 20:07:46,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105007 to 80656. [2022-07-13 20:07:46,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80656 states, 73991 states have (on average 1.564460542498412) internal successors, (115756), 74249 states have internal predecessors, (115756), 4871 states have call successors, (4871), 1536 states have call predecessors, (4871), 1792 states have return successors, (11944), 5126 states have call predecessors, (11944), 4871 states have call successors, (11944) [2022-07-13 20:07:46,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80656 states to 80656 states and 132571 transitions. [2022-07-13 20:07:46,608 INFO L78 Accepts]: Start accepts. Automaton has 80656 states and 132571 transitions. Word has length 156 [2022-07-13 20:07:46,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:07:46,608 INFO L495 AbstractCegarLoop]: Abstraction has 80656 states and 132571 transitions. [2022-07-13 20:07:46,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:46,609 INFO L276 IsEmpty]: Start isEmpty. Operand 80656 states and 132571 transitions. [2022-07-13 20:07:46,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-13 20:07:46,643 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:07:46,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 20:07:46,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 20:07:46,644 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:07:46,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:07:46,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1515130185, now seen corresponding path program 1 times [2022-07-13 20:07:46,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:07:46,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312576989] [2022-07-13 20:07:46,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:07:46,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:07:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:46,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:07:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:46,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 20:07:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:46,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 20:07:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:46,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-13 20:07:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:46,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-13 20:07:46,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:07:46,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:07:46,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:07:46,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312576989] [2022-07-13 20:07:46,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312576989] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:07:46,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:07:46,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 20:07:46,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266862280] [2022-07-13 20:07:46,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:07:46,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 20:07:46,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:07:46,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 20:07:46,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 20:07:46,741 INFO L87 Difference]: Start difference. First operand 80656 states and 132571 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:08:07,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:08:07,686 INFO L93 Difference]: Finished difference Result 324198 states and 533868 transitions. [2022-07-13 20:08:07,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 20:08:07,687 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-13 20:08:07,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:08:08,886 INFO L225 Difference]: With dead ends: 324198 [2022-07-13 20:08:08,886 INFO L226 Difference]: Without dead ends: 245683 [2022-07-13 20:08:09,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-13 20:08:09,118 INFO L413 NwaCegarLoop]: 4782 mSDtfsCounter, 5657 mSDsluCounter, 17442 mSDsCounter, 0 mSdLazyCounter, 2655 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5685 SdHoareTripleChecker+Valid, 22224 SdHoareTripleChecker+Invalid, 2744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 2655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-13 20:08:09,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5685 Valid, 22224 Invalid, 2744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 2655 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-13 20:08:09,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245683 states.