/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.5.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 18:40:53,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 18:40:53,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 18:40:53,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 18:40:53,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 18:40:53,507 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 18:40:53,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 18:40:53,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 18:40:53,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 18:40:53,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 18:40:53,511 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 18:40:53,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 18:40:53,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 18:40:53,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 18:40:53,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 18:40:53,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 18:40:53,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 18:40:53,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 18:40:53,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 18:40:53,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 18:40:53,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 18:40:53,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 18:40:53,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 18:40:53,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 18:40:53,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 18:40:53,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 18:40:53,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 18:40:53,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 18:40:53,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 18:40:53,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 18:40:53,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 18:40:53,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 18:40:53,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 18:40:53,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 18:40:53,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 18:40:53,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 18:40:53,538 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 18:40:53,562 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 18:40:53,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 18:40:53,562 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 18:40:53,563 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 18:40:53,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 18:40:53,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 18:40:53,563 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 18:40:53,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 18:40:53,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 18:40:53,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 18:40:53,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 18:40:53,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 18:40:53,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 18:40:53,564 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 18:40:53,564 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 18:40:53,564 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 18:40:53,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 18:40:53,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 18:40:53,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 18:40:53,565 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 18:40:53,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 18:40:53,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:40:53,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 18:40:53,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 18:40:53,565 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 18:40:53,565 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 18:40:53,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 18:40:53,565 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 18:40:53,565 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 18:40:53,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 18:40:53,565 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 18:40:53,566 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 18:40:53,566 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 18:40:53,566 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 18:40:53,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 18:40:53,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 18:40:53,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 18:40:53,791 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 18:40:53,791 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 18:40:53,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.5.1.ufo.UNBOUNDED.pals.c [2022-01-10 18:40:53,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ae316d69/1280d2e125ce4f849729b8675fb3e851/FLAGc0bc7b227 [2022-01-10 18:40:54,325 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 18:40:54,326 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.5.1.ufo.UNBOUNDED.pals.c [2022-01-10 18:40:54,341 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ae316d69/1280d2e125ce4f849729b8675fb3e851/FLAGc0bc7b227 [2022-01-10 18:40:54,379 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ae316d69/1280d2e125ce4f849729b8675fb3e851 [2022-01-10 18:40:54,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 18:40:54,382 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 18:40:54,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 18:40:54,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 18:40:54,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 18:40:54,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:40:54" (1/1) ... [2022-01-10 18:40:54,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37e886bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:54, skipping insertion in model container [2022-01-10 18:40:54,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:40:54" (1/1) ... [2022-01-10 18:40:54,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 18:40:54,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:40:54,785 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.5.1.ufo.UNBOUNDED.pals.c[55979,55992] [2022-01-10 18:40:54,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:40:54,801 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 18:40:54,863 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.5.1.ufo.UNBOUNDED.pals.c[55979,55992] [2022-01-10 18:40:54,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:40:54,874 INFO L208 MainTranslator]: Completed translation [2022-01-10 18:40:54,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:54 WrapperNode [2022-01-10 18:40:54,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 18:40:54,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 18:40:54,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 18:40:54,876 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 18:40:54,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:54" (1/1) ... [2022-01-10 18:40:54,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:54" (1/1) ... [2022-01-10 18:40:54,946 INFO L137 Inliner]: procedures = 25, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 2066 [2022-01-10 18:40:54,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 18:40:54,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 18:40:54,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 18:40:54,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 18:40:54,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:54" (1/1) ... [2022-01-10 18:40:54,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:54" (1/1) ... [2022-01-10 18:40:54,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:54" (1/1) ... [2022-01-10 18:40:54,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:54" (1/1) ... [2022-01-10 18:40:54,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:54" (1/1) ... [2022-01-10 18:40:54,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:54" (1/1) ... [2022-01-10 18:40:54,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:54" (1/1) ... [2022-01-10 18:40:54,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 18:40:54,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 18:40:54,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 18:40:54,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 18:40:55,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:54" (1/1) ... [2022-01-10 18:40:55,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:40:55,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:40:55,032 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) [2022-01-10 18:40:55,062 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 [2022-01-10 18:40:55,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 18:40:55,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 18:40:55,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 18:40:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 18:40:55,190 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 18:40:55,191 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 18:40:56,236 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 18:40:56,244 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 18:40:56,244 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 18:40:56,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:40:56 BoogieIcfgContainer [2022-01-10 18:40:56,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 18:40:56,247 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 18:40:56,247 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 18:40:56,248 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 18:40:56,250 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:40:56" (1/1) ... [2022-01-10 18:40:56,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:40:56 BasicIcfg [2022-01-10 18:40:56,726 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 18:40:56,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 18:40:56,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 18:40:56,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 18:40:56,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:40:54" (1/4) ... [2022-01-10 18:40:56,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db95b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:40:56, skipping insertion in model container [2022-01-10 18:40:56,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:54" (2/4) ... [2022-01-10 18:40:56,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db95b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:40:56, skipping insertion in model container [2022-01-10 18:40:56,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:40:56" (3/4) ... [2022-01-10 18:40:56,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db95b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:40:56, skipping insertion in model container [2022-01-10 18:40:56,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:40:56" (4/4) ... [2022-01-10 18:40:56,731 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.1.ufo.UNBOUNDED.pals.cTransformedIcfg [2022-01-10 18:40:56,734 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 18:40:56,734 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 18:40:56,760 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 18:40:56,764 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 18:40:56,765 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 18:40:56,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 726 states, 724 states have (on average 1.841160220994475) internal successors, (1333), 725 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:40:56,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-10 18:40:56,795 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:40:56,795 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:40:56,796 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:40:56,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:40:56,799 INFO L85 PathProgramCache]: Analyzing trace with hash 957498656, now seen corresponding path program 1 times [2022-01-10 18:40:56,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:40:56,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420537712] [2022-01-10 18:40:56,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:40:56,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:40:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:40:57,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:40:57,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:40:57,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420537712] [2022-01-10 18:40:57,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420537712] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:40:57,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:40:57,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:40:57,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207895863] [2022-01-10 18:40:57,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:40:57,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 18:40:57,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:40:57,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 18:40:57,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:40:57,246 INFO L87 Difference]: Start difference. First operand has 726 states, 724 states have (on average 1.841160220994475) internal successors, (1333), 725 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:40:57,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:40:57,312 INFO L93 Difference]: Finished difference Result 918 states and 1667 transitions. [2022-01-10 18:40:57,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 18:40:57,317 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-10 18:40:57,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:40:57,331 INFO L225 Difference]: With dead ends: 918 [2022-01-10 18:40:57,331 INFO L226 Difference]: Without dead ends: 722 [2022-01-10 18:40:57,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:40:57,337 INFO L933 BasicCegarLoop]: 1326 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:40:57,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:40:57,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2022-01-10 18:40:57,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2022-01-10 18:40:57,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 721 states have (on average 1.839112343966713) internal successors, (1326), 721 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:40:57,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1326 transitions. [2022-01-10 18:40:57,405 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1326 transitions. Word has length 153 [2022-01-10 18:40:57,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:40:57,406 INFO L470 AbstractCegarLoop]: Abstraction has 722 states and 1326 transitions. [2022-01-10 18:40:57,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:40:57,406 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1326 transitions. [2022-01-10 18:40:57,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-10 18:40:57,410 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:40:57,410 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:40:57,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 18:40:57,411 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:40:57,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:40:57,411 INFO L85 PathProgramCache]: Analyzing trace with hash 702762111, now seen corresponding path program 1 times [2022-01-10 18:40:57,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:40:57,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82569835] [2022-01-10 18:40:57,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:40:57,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:40:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:40:57,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:40:57,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:40:57,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82569835] [2022-01-10 18:40:57,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82569835] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:40:57,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:40:57,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:40:57,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085200860] [2022-01-10 18:40:57,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:40:57,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:40:57,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:40:57,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:40:57,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:40:57,769 INFO L87 Difference]: Start difference. First operand 722 states and 1326 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:40:57,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:40:57,867 INFO L93 Difference]: Finished difference Result 917 states and 1660 transitions. [2022-01-10 18:40:57,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:40:57,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-10 18:40:57,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:40:57,874 INFO L225 Difference]: With dead ends: 917 [2022-01-10 18:40:57,874 INFO L226 Difference]: Without dead ends: 722 [2022-01-10 18:40:57,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 18:40:57,876 INFO L933 BasicCegarLoop]: 1324 mSDtfsCounter, 3 mSDsluCounter, 3924 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5248 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:40:57,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 5248 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:40:57,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2022-01-10 18:40:57,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2022-01-10 18:40:57,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 721 states have (on average 1.7766990291262137) internal successors, (1281), 721 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:40:57,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1281 transitions. [2022-01-10 18:40:57,899 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1281 transitions. Word has length 153 [2022-01-10 18:40:57,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:40:57,900 INFO L470 AbstractCegarLoop]: Abstraction has 722 states and 1281 transitions. [2022-01-10 18:40:57,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:40:57,900 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1281 transitions. [2022-01-10 18:40:57,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-10 18:40:57,903 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:40:57,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:40:57,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 18:40:57,904 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:40:57,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:40:57,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1313685119, now seen corresponding path program 1 times [2022-01-10 18:40:57,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:40:57,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951206738] [2022-01-10 18:40:57,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:40:57,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:40:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:40:58,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:40:58,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:40:58,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951206738] [2022-01-10 18:40:58,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951206738] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:40:58,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:40:58,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:40:58,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160909498] [2022-01-10 18:40:58,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:40:58,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:40:58,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:40:58,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:40:58,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:40:58,244 INFO L87 Difference]: Start difference. First operand 722 states and 1281 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:40:58,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:40:58,305 INFO L93 Difference]: Finished difference Result 1090 states and 1915 transitions. [2022-01-10 18:40:58,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:40:58,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-01-10 18:40:58,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:40:58,310 INFO L225 Difference]: With dead ends: 1090 [2022-01-10 18:40:58,310 INFO L226 Difference]: Without dead ends: 899 [2022-01-10 18:40:58,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:40:58,316 INFO L933 BasicCegarLoop]: 1274 mSDtfsCounter, 295 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 2504 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:40:58,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 2504 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:40:58,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2022-01-10 18:40:58,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 896. [2022-01-10 18:40:58,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 895 states have (on average 1.7620111731843575) internal successors, (1577), 895 states have internal predecessors, (1577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:40:58,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1577 transitions. [2022-01-10 18:40:58,339 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1577 transitions. Word has length 197 [2022-01-10 18:40:58,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:40:58,340 INFO L470 AbstractCegarLoop]: Abstraction has 896 states and 1577 transitions. [2022-01-10 18:40:58,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:40:58,341 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1577 transitions. [2022-01-10 18:40:58,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-01-10 18:40:58,346 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:40:58,347 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:40:58,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 18:40:58,347 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:40:58,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:40:58,349 INFO L85 PathProgramCache]: Analyzing trace with hash 2096361610, now seen corresponding path program 1 times [2022-01-10 18:40:58,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:40:58,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855678719] [2022-01-10 18:40:58,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:40:58,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:40:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:40:58,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:40:58,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:40:58,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855678719] [2022-01-10 18:40:58,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855678719] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:40:58,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:40:58,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:40:58,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197100337] [2022-01-10 18:40:58,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:40:58,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:40:58,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:40:58,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:40:58,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:40:58,606 INFO L87 Difference]: Start difference. First operand 896 states and 1577 transitions. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:40:58,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:40:58,762 INFO L93 Difference]: Finished difference Result 2591 states and 4552 transitions. [2022-01-10 18:40:58,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:40:58,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 201 [2022-01-10 18:40:58,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:40:58,768 INFO L225 Difference]: With dead ends: 2591 [2022-01-10 18:40:58,768 INFO L226 Difference]: Without dead ends: 1772 [2022-01-10 18:40:58,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:40:58,779 INFO L933 BasicCegarLoop]: 1251 mSDtfsCounter, 3603 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3603 SdHoareTripleChecker+Valid, 2487 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:40:58,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3603 Valid, 2487 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:40:58,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1772 states. [2022-01-10 18:40:58,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1772 to 1770. [2022-01-10 18:40:58,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 1769 states have (on average 1.754663651780667) internal successors, (3104), 1769 states have internal predecessors, (3104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:40:58,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 3104 transitions. [2022-01-10 18:40:58,836 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 3104 transitions. Word has length 201 [2022-01-10 18:40:58,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:40:58,837 INFO L470 AbstractCegarLoop]: Abstraction has 1770 states and 3104 transitions. [2022-01-10 18:40:58,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:40:58,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 3104 transitions. [2022-01-10 18:40:58,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-01-10 18:40:58,842 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:40:58,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:40:58,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 18:40:58,842 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:40:58,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:40:58,852 INFO L85 PathProgramCache]: Analyzing trace with hash 698589288, now seen corresponding path program 1 times [2022-01-10 18:40:58,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:40:58,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547392899] [2022-01-10 18:40:58,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:40:58,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:40:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:40:59,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:40:59,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:40:59,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547392899] [2022-01-10 18:40:59,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547392899] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:40:59,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:40:59,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:40:59,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610197739] [2022-01-10 18:40:59,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:40:59,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:40:59,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:40:59,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:40:59,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:40:59,039 INFO L87 Difference]: Start difference. First operand 1770 states and 3104 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:40:59,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:40:59,118 INFO L93 Difference]: Finished difference Result 2846 states and 4956 transitions. [2022-01-10 18:40:59,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:40:59,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 202 [2022-01-10 18:40:59,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:40:59,143 INFO L225 Difference]: With dead ends: 2846 [2022-01-10 18:40:59,143 INFO L226 Difference]: Without dead ends: 2126 [2022-01-10 18:40:59,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:40:59,146 INFO L933 BasicCegarLoop]: 1292 mSDtfsCounter, 316 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 2541 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:40:59,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 2541 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:40:59,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2126 states. [2022-01-10 18:40:59,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2126 to 2102. [2022-01-10 18:40:59,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2102 states, 2101 states have (on average 1.7458353165159448) internal successors, (3668), 2101 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:40:59,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2102 states to 2102 states and 3668 transitions. [2022-01-10 18:40:59,244 INFO L78 Accepts]: Start accepts. Automaton has 2102 states and 3668 transitions. Word has length 202 [2022-01-10 18:40:59,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:40:59,246 INFO L470 AbstractCegarLoop]: Abstraction has 2102 states and 3668 transitions. [2022-01-10 18:40:59,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:40:59,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2102 states and 3668 transitions. [2022-01-10 18:40:59,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-01-10 18:40:59,258 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:40:59,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:40:59,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 18:40:59,259 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:40:59,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:40:59,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1483200719, now seen corresponding path program 1 times [2022-01-10 18:40:59,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:40:59,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210979576] [2022-01-10 18:40:59,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:40:59,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:40:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:40:59,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:40:59,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:40:59,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210979576] [2022-01-10 18:40:59,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210979576] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:40:59,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:40:59,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:40:59,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626841295] [2022-01-10 18:40:59,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:40:59,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:40:59,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:40:59,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:40:59,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:40:59,468 INFO L87 Difference]: Start difference. First operand 2102 states and 3668 transitions. Second operand has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:40:59,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:40:59,648 INFO L93 Difference]: Finished difference Result 6250 states and 10907 transitions. [2022-01-10 18:40:59,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:40:59,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 203 [2022-01-10 18:40:59,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:40:59,663 INFO L225 Difference]: With dead ends: 6250 [2022-01-10 18:40:59,663 INFO L226 Difference]: Without dead ends: 4162 [2022-01-10 18:40:59,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:40:59,670 INFO L933 BasicCegarLoop]: 1273 mSDtfsCounter, 2500 mSDsluCounter, 2472 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2500 SdHoareTripleChecker+Valid, 3745 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:40:59,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2500 Valid, 3745 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:40:59,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4162 states. [2022-01-10 18:40:59,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4162 to 4160. [2022-01-10 18:40:59,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4160 states, 4159 states have (on average 1.7376773262803558) internal successors, (7227), 4159 states have internal predecessors, (7227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:40:59,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4160 states to 4160 states and 7227 transitions. [2022-01-10 18:40:59,862 INFO L78 Accepts]: Start accepts. Automaton has 4160 states and 7227 transitions. Word has length 203 [2022-01-10 18:40:59,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:40:59,862 INFO L470 AbstractCegarLoop]: Abstraction has 4160 states and 7227 transitions. [2022-01-10 18:40:59,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:40:59,863 INFO L276 IsEmpty]: Start isEmpty. Operand 4160 states and 7227 transitions. [2022-01-10 18:40:59,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-01-10 18:40:59,871 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:40:59,871 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:40:59,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 18:40:59,871 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:40:59,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:40:59,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1787385428, now seen corresponding path program 1 times [2022-01-10 18:40:59,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:40:59,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317178053] [2022-01-10 18:40:59,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:40:59,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:40:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:41:00,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:41:00,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:41:00,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317178053] [2022-01-10 18:41:00,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317178053] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:41:00,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:41:00,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:41:00,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892957384] [2022-01-10 18:41:00,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:41:00,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:41:00,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:41:00,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:41:00,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:41:00,034 INFO L87 Difference]: Start difference. First operand 4160 states and 7227 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:00,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:41:00,155 INFO L93 Difference]: Finished difference Result 6200 states and 10737 transitions. [2022-01-10 18:41:00,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:41:00,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 204 [2022-01-10 18:41:00,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:41:00,173 INFO L225 Difference]: With dead ends: 6200 [2022-01-10 18:41:00,173 INFO L226 Difference]: Without dead ends: 4794 [2022-01-10 18:41:00,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:41:00,178 INFO L933 BasicCegarLoop]: 1543 mSDtfsCounter, 302 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 2774 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:41:00,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 2774 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:41:00,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4794 states. [2022-01-10 18:41:00,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4794 to 4792. [2022-01-10 18:41:00,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4792 states, 4791 states have (on average 1.7347109163013985) internal successors, (8311), 4791 states have internal predecessors, (8311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:00,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4792 states to 4792 states and 8311 transitions. [2022-01-10 18:41:00,351 INFO L78 Accepts]: Start accepts. Automaton has 4792 states and 8311 transitions. Word has length 204 [2022-01-10 18:41:00,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:41:00,351 INFO L470 AbstractCegarLoop]: Abstraction has 4792 states and 8311 transitions. [2022-01-10 18:41:00,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:00,352 INFO L276 IsEmpty]: Start isEmpty. Operand 4792 states and 8311 transitions. [2022-01-10 18:41:00,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-01-10 18:41:00,357 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:41:00,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:41:00,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 18:41:00,357 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:41:00,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:41:00,358 INFO L85 PathProgramCache]: Analyzing trace with hash -537064789, now seen corresponding path program 1 times [2022-01-10 18:41:00,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:41:00,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175651817] [2022-01-10 18:41:00,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:41:00,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:41:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:41:00,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:41:00,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:41:00,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175651817] [2022-01-10 18:41:00,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175651817] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:41:00,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:41:00,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:41:00,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129514328] [2022-01-10 18:41:00,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:41:00,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:41:00,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:41:00,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:41:00,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:41:00,547 INFO L87 Difference]: Start difference. First operand 4792 states and 8311 transitions. Second operand has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:00,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:41:00,881 INFO L93 Difference]: Finished difference Result 14145 states and 24523 transitions. [2022-01-10 18:41:00,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:41:00,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 206 [2022-01-10 18:41:00,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:41:00,921 INFO L225 Difference]: With dead ends: 14145 [2022-01-10 18:41:00,921 INFO L226 Difference]: Without dead ends: 9519 [2022-01-10 18:41:00,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:41:00,931 INFO L933 BasicCegarLoop]: 1582 mSDtfsCounter, 3269 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3269 SdHoareTripleChecker+Valid, 2818 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:41:00,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3269 Valid, 2818 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:41:00,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9519 states. [2022-01-10 18:41:01,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9519 to 9517. [2022-01-10 18:41:01,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9517 states, 9516 states have (on average 1.7283522488440521) internal successors, (16447), 9516 states have internal predecessors, (16447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:01,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9517 states to 9517 states and 16447 transitions. [2022-01-10 18:41:01,313 INFO L78 Accepts]: Start accepts. Automaton has 9517 states and 16447 transitions. Word has length 206 [2022-01-10 18:41:01,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:41:01,313 INFO L470 AbstractCegarLoop]: Abstraction has 9517 states and 16447 transitions. [2022-01-10 18:41:01,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:01,314 INFO L276 IsEmpty]: Start isEmpty. Operand 9517 states and 16447 transitions. [2022-01-10 18:41:01,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-01-10 18:41:01,323 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:41:01,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:41:01,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 18:41:01,323 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:41:01,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:41:01,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1700009474, now seen corresponding path program 1 times [2022-01-10 18:41:01,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:41:01,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245180163] [2022-01-10 18:41:01,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:41:01,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:41:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:41:01,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:41:01,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:41:01,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245180163] [2022-01-10 18:41:01,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245180163] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:41:01,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:41:01,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:41:01,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942486237] [2022-01-10 18:41:01,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:41:01,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:41:01,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:41:01,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:41:01,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:41:01,478 INFO L87 Difference]: Start difference. First operand 9517 states and 16447 transitions. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:02,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:41:02,185 INFO L93 Difference]: Finished difference Result 28172 states and 48681 transitions. [2022-01-10 18:41:02,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:41:02,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 208 [2022-01-10 18:41:02,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:41:02,225 INFO L225 Difference]: With dead ends: 28172 [2022-01-10 18:41:02,225 INFO L226 Difference]: Without dead ends: 18716 [2022-01-10 18:41:02,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:41:02,247 INFO L933 BasicCegarLoop]: 1571 mSDtfsCounter, 3239 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3239 SdHoareTripleChecker+Valid, 2807 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:41:02,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3239 Valid, 2807 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:41:02,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18716 states. [2022-01-10 18:41:02,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18716 to 18714. [2022-01-10 18:41:02,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18714 states, 18713 states have (on average 1.7202479559664405) internal successors, (32191), 18713 states have internal predecessors, (32191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:03,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18714 states to 18714 states and 32191 transitions. [2022-01-10 18:41:03,004 INFO L78 Accepts]: Start accepts. Automaton has 18714 states and 32191 transitions. Word has length 208 [2022-01-10 18:41:03,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:41:03,004 INFO L470 AbstractCegarLoop]: Abstraction has 18714 states and 32191 transitions. [2022-01-10 18:41:03,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:03,005 INFO L276 IsEmpty]: Start isEmpty. Operand 18714 states and 32191 transitions. [2022-01-10 18:41:03,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-01-10 18:41:03,023 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:41:03,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:41:03,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 18:41:03,023 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:41:03,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:41:03,023 INFO L85 PathProgramCache]: Analyzing trace with hash -227829447, now seen corresponding path program 1 times [2022-01-10 18:41:03,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:41:03,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721776037] [2022-01-10 18:41:03,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:41:03,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:41:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:41:03,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:41:03,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:41:03,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721776037] [2022-01-10 18:41:03,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721776037] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:41:03,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:41:03,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:41:03,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313138724] [2022-01-10 18:41:03,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:41:03,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:41:03,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:41:03,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:41:03,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:41:03,256 INFO L87 Difference]: Start difference. First operand 18714 states and 32191 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:03,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:41:03,884 INFO L93 Difference]: Finished difference Result 38955 states and 66541 transitions. [2022-01-10 18:41:03,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:41:03,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-01-10 18:41:03,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:41:03,936 INFO L225 Difference]: With dead ends: 38955 [2022-01-10 18:41:03,936 INFO L226 Difference]: Without dead ends: 28472 [2022-01-10 18:41:03,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:41:03,955 INFO L933 BasicCegarLoop]: 1292 mSDtfsCounter, 292 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 2531 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:41:03,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 2531 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:41:03,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28472 states. [2022-01-10 18:41:04,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28472 to 28407. [2022-01-10 18:41:04,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28407 states, 28406 states have (on average 1.7084418784763782) internal successors, (48530), 28406 states have internal predecessors, (48530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:04,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28407 states to 28407 states and 48530 transitions. [2022-01-10 18:41:04,899 INFO L78 Accepts]: Start accepts. Automaton has 28407 states and 48530 transitions. Word has length 210 [2022-01-10 18:41:04,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:41:04,900 INFO L470 AbstractCegarLoop]: Abstraction has 28407 states and 48530 transitions. [2022-01-10 18:41:04,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:04,900 INFO L276 IsEmpty]: Start isEmpty. Operand 28407 states and 48530 transitions. [2022-01-10 18:41:04,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-01-10 18:41:04,918 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:41:04,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:41:04,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 18:41:04,919 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:41:04,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:41:04,920 INFO L85 PathProgramCache]: Analyzing trace with hash -443013703, now seen corresponding path program 1 times [2022-01-10 18:41:04,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:41:04,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325968817] [2022-01-10 18:41:04,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:41:04,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:41:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:41:05,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:41:05,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:41:05,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325968817] [2022-01-10 18:41:05,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325968817] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:41:05,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:41:05,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:41:05,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102071080] [2022-01-10 18:41:05,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:41:05,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:41:05,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:41:05,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:41:05,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:41:05,050 INFO L87 Difference]: Start difference. First operand 28407 states and 48530 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:06,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:41:06,304 INFO L93 Difference]: Finished difference Result 81991 states and 139778 transitions. [2022-01-10 18:41:06,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:41:06,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 214 [2022-01-10 18:41:06,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:41:06,429 INFO L225 Difference]: With dead ends: 81991 [2022-01-10 18:41:06,429 INFO L226 Difference]: Without dead ends: 55447 [2022-01-10 18:41:06,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:41:06,466 INFO L933 BasicCegarLoop]: 2426 mSDtfsCounter, 1045 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 3676 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:41:06,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1045 Valid, 3676 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:41:06,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55447 states. [2022-01-10 18:41:07,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55447 to 55445. [2022-01-10 18:41:07,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55445 states, 55444 states have (on average 1.6998232450761128) internal successors, (94245), 55444 states have internal predecessors, (94245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:08,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55445 states to 55445 states and 94245 transitions. [2022-01-10 18:41:08,029 INFO L78 Accepts]: Start accepts. Automaton has 55445 states and 94245 transitions. Word has length 214 [2022-01-10 18:41:08,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:41:08,030 INFO L470 AbstractCegarLoop]: Abstraction has 55445 states and 94245 transitions. [2022-01-10 18:41:08,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:08,030 INFO L276 IsEmpty]: Start isEmpty. Operand 55445 states and 94245 transitions. [2022-01-10 18:41:08,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-01-10 18:41:08,069 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:41:08,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:41:08,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 18:41:08,070 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:41:08,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:41:08,071 INFO L85 PathProgramCache]: Analyzing trace with hash 175607798, now seen corresponding path program 1 times [2022-01-10 18:41:08,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:41:08,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176142724] [2022-01-10 18:41:08,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:41:08,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:41:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:41:08,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:41:08,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:41:08,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176142724] [2022-01-10 18:41:08,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176142724] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:41:08,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:41:08,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:41:08,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473559172] [2022-01-10 18:41:08,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:41:08,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:41:08,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:41:08,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:41:08,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:41:08,388 INFO L87 Difference]: Start difference. First operand 55445 states and 94245 transitions. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:10,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:41:10,611 INFO L93 Difference]: Finished difference Result 163781 states and 278291 transitions. [2022-01-10 18:41:10,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:41:10,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 215 [2022-01-10 18:41:10,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:41:10,814 INFO L225 Difference]: With dead ends: 163781 [2022-01-10 18:41:10,814 INFO L226 Difference]: Without dead ends: 109503 [2022-01-10 18:41:10,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:41:10,866 INFO L933 BasicCegarLoop]: 1251 mSDtfsCounter, 3465 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3465 SdHoareTripleChecker+Valid, 2487 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:41:10,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3465 Valid, 2487 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:41:10,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109503 states. [2022-01-10 18:41:13,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109503 to 109501. [2022-01-10 18:41:14,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109501 states, 109500 states have (on average 1.6944018264840182) internal successors, (185537), 109500 states have internal predecessors, (185537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:14,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109501 states to 109501 states and 185537 transitions. [2022-01-10 18:41:14,453 INFO L78 Accepts]: Start accepts. Automaton has 109501 states and 185537 transitions. Word has length 215 [2022-01-10 18:41:14,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:41:14,455 INFO L470 AbstractCegarLoop]: Abstraction has 109501 states and 185537 transitions. [2022-01-10 18:41:14,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:14,456 INFO L276 IsEmpty]: Start isEmpty. Operand 109501 states and 185537 transitions. [2022-01-10 18:41:14,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-01-10 18:41:14,544 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:41:14,544 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:41:14,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 18:41:14,544 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:41:14,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:41:14,545 INFO L85 PathProgramCache]: Analyzing trace with hash 154514477, now seen corresponding path program 1 times [2022-01-10 18:41:14,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:41:14,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589044831] [2022-01-10 18:41:14,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:41:14,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:41:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:41:14,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:41:14,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:41:14,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589044831] [2022-01-10 18:41:14,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589044831] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:41:14,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:41:14,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:41:14,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354135561] [2022-01-10 18:41:14,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:41:14,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:41:14,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:41:14,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:41:14,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:41:14,855 INFO L87 Difference]: Start difference. First operand 109501 states and 185537 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:17,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:41:17,362 INFO L93 Difference]: Finished difference Result 227115 states and 383969 transitions. [2022-01-10 18:41:17,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:41:17,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 216 [2022-01-10 18:41:17,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:41:17,820 INFO L225 Difference]: With dead ends: 227115 [2022-01-10 18:41:17,824 INFO L226 Difference]: Without dead ends: 148245 [2022-01-10 18:41:17,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:41:17,896 INFO L933 BasicCegarLoop]: 1293 mSDtfsCounter, 302 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 2543 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:41:17,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 2543 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:41:17,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148245 states. [2022-01-10 18:41:21,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148245 to 145595. [2022-01-10 18:41:21,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145595 states, 145594 states have (on average 1.6836339409591055) internal successors, (245127), 145594 states have internal predecessors, (245127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:22,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145595 states to 145595 states and 245127 transitions. [2022-01-10 18:41:22,424 INFO L78 Accepts]: Start accepts. Automaton has 145595 states and 245127 transitions. Word has length 216 [2022-01-10 18:41:22,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:41:22,425 INFO L470 AbstractCegarLoop]: Abstraction has 145595 states and 245127 transitions. [2022-01-10 18:41:22,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:22,425 INFO L276 IsEmpty]: Start isEmpty. Operand 145595 states and 245127 transitions. [2022-01-10 18:41:22,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-01-10 18:41:22,483 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:41:22,483 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:41:22,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 18:41:22,483 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:41:22,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:41:22,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1396257599, now seen corresponding path program 1 times [2022-01-10 18:41:22,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:41:22,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742413755] [2022-01-10 18:41:22,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:41:22,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:41:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:41:22,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:41:22,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:41:22,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742413755] [2022-01-10 18:41:22,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742413755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:41:22,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:41:22,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:41:22,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643637266] [2022-01-10 18:41:22,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:41:22,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:41:22,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:41:22,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:41:22,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:41:22,644 INFO L87 Difference]: Start difference. First operand 145595 states and 245127 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:28,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:41:28,695 INFO L93 Difference]: Finished difference Result 428679 states and 721266 transitions. [2022-01-10 18:41:28,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:41:28,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2022-01-10 18:41:28,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:41:29,425 INFO L225 Difference]: With dead ends: 428679 [2022-01-10 18:41:29,425 INFO L226 Difference]: Without dead ends: 287495 [2022-01-10 18:41:29,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:41:29,603 INFO L933 BasicCegarLoop]: 2413 mSDtfsCounter, 1028 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 3663 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:41:29,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1028 Valid, 3663 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:41:29,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287495 states. [2022-01-10 18:41:36,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287495 to 287493. [2022-01-10 18:41:37,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287493 states, 287492 states have (on average 1.6769579675260529) internal successors, (482112), 287492 states have internal predecessors, (482112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:37,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287493 states to 287493 states and 482112 transitions. [2022-01-10 18:41:37,679 INFO L78 Accepts]: Start accepts. Automaton has 287493 states and 482112 transitions. Word has length 217 [2022-01-10 18:41:37,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:41:37,680 INFO L470 AbstractCegarLoop]: Abstraction has 287493 states and 482112 transitions. [2022-01-10 18:41:37,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:37,680 INFO L276 IsEmpty]: Start isEmpty. Operand 287493 states and 482112 transitions. [2022-01-10 18:41:38,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-01-10 18:41:38,147 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:41:38,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:41:38,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 18:41:38,147 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:41:38,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:41:38,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1846589527, now seen corresponding path program 1 times [2022-01-10 18:41:38,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:41:38,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525340275] [2022-01-10 18:41:38,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:41:38,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:41:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:41:38,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:41:38,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:41:38,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525340275] [2022-01-10 18:41:38,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525340275] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:41:38,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:41:38,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:41:38,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076059029] [2022-01-10 18:41:38,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:41:38,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:41:38,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:41:38,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:41:38,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:41:38,310 INFO L87 Difference]: Start difference. First operand 287493 states and 482112 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:41:50,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:41:50,085 INFO L93 Difference]: Finished difference Result 785661 states and 1317540 transitions. [2022-01-10 18:41:50,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:41:50,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218 [2022-01-10 18:41:50,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:41:51,100 INFO L225 Difference]: With dead ends: 785661 [2022-01-10 18:41:51,100 INFO L226 Difference]: Without dead ends: 499095 [2022-01-10 18:41:51,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:41:51,298 INFO L933 BasicCegarLoop]: 1302 mSDtfsCounter, 5696 mSDsluCounter, 2450 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5696 SdHoareTripleChecker+Valid, 3752 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:41:51,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5696 Valid, 3752 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:41:51,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499095 states.