/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_BITWISE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:06:27,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:06:27,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:06:27,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:06:27,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:06:27,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:06:27,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:06:27,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:06:27,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:06:27,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:06:27,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:06:27,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:06:27,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:06:27,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:06:27,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:06:27,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:06:27,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:06:27,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:06:27,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:06:27,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:06:27,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:06:27,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:06:27,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:06:27,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:06:27,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:06:27,517 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:06:27,517 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:06:27,518 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:06:27,518 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:06:27,519 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:06:27,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:06:27,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:06:27,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:06:27,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:06:27,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:06:27,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:06:27,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:06:27,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:06:27,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:06:27,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:06:27,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:06:27,528 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:06:27,555 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:06:27,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:06:27,555 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:06:27,555 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:06:27,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:06:27,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:06:27,557 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:06:27,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:06:27,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:06:27,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:06:27,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:06:27,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:06:27,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:06:27,558 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:06:27,558 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:06:27,558 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:06:27,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:06:27,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:06:27,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:06:27,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:06:27,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:06:27,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:06:27,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:06:27,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:06:27,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:06:27,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:06:27,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:06:27,559 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:06:27,559 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:06:27,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:06:27,559 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:06:27,559 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:06:27,560 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:06:27,560 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:06:27,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:06:27,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:06:27,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:06:27,749 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:06:27,749 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:06:27,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product26.cil.c [2022-01-10 12:06:27,787 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2a4cf029/4ff17aac99ea4a72bd2febfce21cfdbb/FLAG268fc191e [2022-01-10 12:06:28,259 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:06:28,259 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product26.cil.c [2022-01-10 12:06:28,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2a4cf029/4ff17aac99ea4a72bd2febfce21cfdbb/FLAG268fc191e [2022-01-10 12:06:28,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2a4cf029/4ff17aac99ea4a72bd2febfce21cfdbb [2022-01-10 12:06:28,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:06:28,535 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:06:28,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:06:28,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:06:28,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:06:28,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:06:28" (1/1) ... [2022-01-10 12:06:28,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cce7b56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:28, skipping insertion in model container [2022-01-10 12:06:28,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:06:28" (1/1) ... [2022-01-10 12:06:28,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:06:28,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:06:28,955 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product26.cil.c[70298,70311] [2022-01-10 12:06:28,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:06:28,992 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:06:29,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:06:29,116 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product26.cil.c[70298,70311] [2022-01-10 12:06:29,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:06:29,128 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:06:29,190 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product26.cil.c[70298,70311] [2022-01-10 12:06:29,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:06:29,222 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:06:29,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:29 WrapperNode [2022-01-10 12:06:29,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:06:29,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:06:29,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:06:29,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:06:29,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:29" (1/1) ... [2022-01-10 12:06:29,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:29" (1/1) ... [2022-01-10 12:06:29,445 INFO L137 Inliner]: procedures = 95, calls = 340, calls flagged for inlining = 192, calls inlined = 562, statements flattened = 17261 [2022-01-10 12:06:29,445 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:06:29,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:06:29,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:06:29,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:06:29,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:29" (1/1) ... [2022-01-10 12:06:29,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:29" (1/1) ... [2022-01-10 12:06:29,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:29" (1/1) ... [2022-01-10 12:06:29,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:29" (1/1) ... [2022-01-10 12:06:29,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:29" (1/1) ... [2022-01-10 12:06:29,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:29" (1/1) ... [2022-01-10 12:06:29,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:29" (1/1) ... [2022-01-10 12:06:29,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:06:29,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:06:29,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:06:29,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:06:29,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:29" (1/1) ... [2022-01-10 12:06:29,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:06:29,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:06:29,823 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 12:06:30,013 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 12:06:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:06:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:06:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:06:30,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:06:30,202 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:06:30,204 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:06:36,108 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:06:36,202 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:06:36,202 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:06:36,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:06:36 BoogieIcfgContainer [2022-01-10 12:06:36,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:06:36,229 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:06:36,229 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:06:36,230 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:06:36,233 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:06:36" (1/1) ... [2022-01-10 12:06:37,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:06:37 BasicIcfg [2022-01-10 12:06:37,293 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:06:37,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:06:37,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:06:37,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:06:37,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:06:28" (1/4) ... [2022-01-10 12:06:37,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a70b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:06:37, skipping insertion in model container [2022-01-10 12:06:37,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:29" (2/4) ... [2022-01-10 12:06:37,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a70b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:06:37, skipping insertion in model container [2022-01-10 12:06:37,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:06:36" (3/4) ... [2022-01-10 12:06:37,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a70b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:06:37, skipping insertion in model container [2022-01-10 12:06:37,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:06:37" (4/4) ... [2022-01-10 12:06:37,301 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product26.cil.cTransformedIcfg [2022-01-10 12:06:37,305 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:06:37,305 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 12:06:37,361 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:06:37,366 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 12:06:37,366 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 12:06:37,436 INFO L276 IsEmpty]: Start isEmpty. Operand has 4994 states, 4988 states have (on average 1.869887730553328) internal successors, (9327), 4993 states have internal predecessors, (9327), 0 states have call successors, (0), 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 12:06:37,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 12:06:37,447 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:37,448 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] [2022-01-10 12:06:37,448 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:37,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:37,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1059359770, now seen corresponding path program 1 times [2022-01-10 12:06:37,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:37,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104600848] [2022-01-10 12:06:37,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:37,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:37,737 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 12:06:37,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:37,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104600848] [2022-01-10 12:06:37,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104600848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:37,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:37,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:37,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906677584] [2022-01-10 12:06:37,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:37,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:37,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:37,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:37,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:37,806 INFO L87 Difference]: Start difference. First operand has 4994 states, 4988 states have (on average 1.869887730553328) internal successors, (9327), 4993 states have internal predecessors, (9327), 0 states have call successors, (0), 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 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 12:06:38,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:38,056 INFO L93 Difference]: Finished difference Result 9973 states and 18631 transitions. [2022-01-10 12:06:38,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:38,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-01-10 12:06:38,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:38,097 INFO L225 Difference]: With dead ends: 9973 [2022-01-10 12:06:38,097 INFO L226 Difference]: Without dead ends: 4983 [2022-01-10 12:06:38,111 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 12:06:38,120 INFO L933 BasicCegarLoop]: 9306 mSDtfsCounter, 9301 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9301 SdHoareTripleChecker+Valid, 9317 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:38,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9301 Valid, 9317 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:06:38,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4983 states. [2022-01-10 12:06:38,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4983 to 4983. [2022-01-10 12:06:38,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4983 states, 4978 states have (on average 1.8688228204098032) internal successors, (9303), 4982 states have internal predecessors, (9303), 0 states have call successors, (0), 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 12:06:38,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4983 states to 4983 states and 9303 transitions. [2022-01-10 12:06:38,305 INFO L78 Accepts]: Start accepts. Automaton has 4983 states and 9303 transitions. Word has length 33 [2022-01-10 12:06:38,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:38,306 INFO L470 AbstractCegarLoop]: Abstraction has 4983 states and 9303 transitions. [2022-01-10 12:06:38,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 12:06:38,306 INFO L276 IsEmpty]: Start isEmpty. Operand 4983 states and 9303 transitions. [2022-01-10 12:06:38,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 12:06:38,312 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:38,312 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] [2022-01-10 12:06:38,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:06:38,313 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:38,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:38,315 INFO L85 PathProgramCache]: Analyzing trace with hash 135716034, now seen corresponding path program 1 times [2022-01-10 12:06:38,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:38,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693475772] [2022-01-10 12:06:38,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:38,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:38,462 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 12:06:38,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:38,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693475772] [2022-01-10 12:06:38,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693475772] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:38,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:38,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:38,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556690436] [2022-01-10 12:06:38,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:38,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:38,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:38,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:38,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:38,466 INFO L87 Difference]: Start difference. First operand 4983 states and 9303 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 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 12:06:38,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:38,674 INFO L93 Difference]: Finished difference Result 9916 states and 18520 transitions. [2022-01-10 12:06:38,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:38,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2022-01-10 12:06:38,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:38,696 INFO L225 Difference]: With dead ends: 9916 [2022-01-10 12:06:38,696 INFO L226 Difference]: Without dead ends: 4983 [2022-01-10 12:06:38,709 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 12:06:38,711 INFO L933 BasicCegarLoop]: 9243 mSDtfsCounter, 9261 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9261 SdHoareTripleChecker+Valid, 9258 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:38,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9261 Valid, 9258 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:06:38,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4983 states. [2022-01-10 12:06:38,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4983 to 4983. [2022-01-10 12:06:38,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4983 states, 4978 states have (on average 1.8638007231820009) internal successors, (9278), 4982 states have internal predecessors, (9278), 0 states have call successors, (0), 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 12:06:38,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4983 states to 4983 states and 9278 transitions. [2022-01-10 12:06:38,862 INFO L78 Accepts]: Start accepts. Automaton has 4983 states and 9278 transitions. Word has length 40 [2022-01-10 12:06:38,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:38,863 INFO L470 AbstractCegarLoop]: Abstraction has 4983 states and 9278 transitions. [2022-01-10 12:06:38,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 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 12:06:38,866 INFO L276 IsEmpty]: Start isEmpty. Operand 4983 states and 9278 transitions. [2022-01-10 12:06:38,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-10 12:06:38,876 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:38,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:06:38,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:06:38,877 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:38,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:38,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1326686553, now seen corresponding path program 1 times [2022-01-10 12:06:38,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:38,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058721616] [2022-01-10 12:06:38,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:38,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:39,082 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 12:06:39,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:39,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058721616] [2022-01-10 12:06:39,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058721616] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:39,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:39,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:39,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4144816] [2022-01-10 12:06:39,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:39,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:39,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:39,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:39,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:39,085 INFO L87 Difference]: Start difference. First operand 4983 states and 9278 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 12:06:39,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:39,361 INFO L93 Difference]: Finished difference Result 11233 states and 20966 transitions. [2022-01-10 12:06:39,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:39,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2022-01-10 12:06:39,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:39,394 INFO L225 Difference]: With dead ends: 11233 [2022-01-10 12:06:39,394 INFO L226 Difference]: Without dead ends: 8718 [2022-01-10 12:06:39,402 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 12:06:39,403 INFO L933 BasicCegarLoop]: 10211 mSDtfsCounter, 9218 mSDsluCounter, 6979 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9218 SdHoareTripleChecker+Valid, 17190 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:39,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9218 Valid, 17190 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:06:39,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8718 states. [2022-01-10 12:06:39,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8718 to 8718. [2022-01-10 12:06:39,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8718 states, 8713 states have (on average 1.8681280844714794) internal successors, (16277), 8717 states have internal predecessors, (16277), 0 states have call successors, (0), 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 12:06:39,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8718 states to 8718 states and 16277 transitions. [2022-01-10 12:06:39,639 INFO L78 Accepts]: Start accepts. Automaton has 8718 states and 16277 transitions. Word has length 43 [2022-01-10 12:06:39,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:39,640 INFO L470 AbstractCegarLoop]: Abstraction has 8718 states and 16277 transitions. [2022-01-10 12:06:39,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 12:06:39,640 INFO L276 IsEmpty]: Start isEmpty. Operand 8718 states and 16277 transitions. [2022-01-10 12:06:39,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 12:06:39,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:39,642 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] [2022-01-10 12:06:39,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:06:39,642 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:39,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:39,643 INFO L85 PathProgramCache]: Analyzing trace with hash 2107962307, now seen corresponding path program 1 times [2022-01-10 12:06:39,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:39,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519449157] [2022-01-10 12:06:39,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:39,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:39,691 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 12:06:39,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:39,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519449157] [2022-01-10 12:06:39,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519449157] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:39,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:39,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:39,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103130948] [2022-01-10 12:06:39,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:39,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:39,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:39,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:39,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:39,693 INFO L87 Difference]: Start difference. First operand 8718 states and 16277 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 12:06:39,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:39,994 INFO L93 Difference]: Finished difference Result 20961 states and 39176 transitions. [2022-01-10 12:06:39,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:39,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2022-01-10 12:06:39,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:40,043 INFO L225 Difference]: With dead ends: 20961 [2022-01-10 12:06:40,043 INFO L226 Difference]: Without dead ends: 15955 [2022-01-10 12:06:40,059 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 12:06:40,061 INFO L933 BasicCegarLoop]: 9275 mSDtfsCounter, 9217 mSDsluCounter, 6982 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9217 SdHoareTripleChecker+Valid, 16257 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:40,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9217 Valid, 16257 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:06:40,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15955 states. [2022-01-10 12:06:40,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15955 to 15953. [2022-01-10 12:06:40,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15953 states, 15948 states have (on average 1.8703912716328066) internal successors, (29829), 15952 states have internal predecessors, (29829), 0 states have call successors, (0), 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 12:06:40,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15953 states to 15953 states and 29829 transitions. [2022-01-10 12:06:40,665 INFO L78 Accepts]: Start accepts. Automaton has 15953 states and 29829 transitions. Word has length 45 [2022-01-10 12:06:40,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:40,666 INFO L470 AbstractCegarLoop]: Abstraction has 15953 states and 29829 transitions. [2022-01-10 12:06:40,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 12:06:40,667 INFO L276 IsEmpty]: Start isEmpty. Operand 15953 states and 29829 transitions. [2022-01-10 12:06:40,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 12:06:40,669 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:40,669 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] [2022-01-10 12:06:40,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:06:40,670 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:40,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:40,670 INFO L85 PathProgramCache]: Analyzing trace with hash 514107594, now seen corresponding path program 1 times [2022-01-10 12:06:40,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:40,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119356255] [2022-01-10 12:06:40,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:40,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:40,732 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 12:06:40,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:40,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119356255] [2022-01-10 12:06:40,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119356255] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:40,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:40,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:40,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530916687] [2022-01-10 12:06:40,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:40,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:40,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:40,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:40,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:40,734 INFO L87 Difference]: Start difference. First operand 15953 states and 29829 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 12:06:41,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:41,310 INFO L93 Difference]: Finished difference Result 39935 states and 74685 transitions. [2022-01-10 12:06:41,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:41,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2022-01-10 12:06:41,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:41,409 INFO L225 Difference]: With dead ends: 39935 [2022-01-10 12:06:41,410 INFO L226 Difference]: Without dead ends: 29956 [2022-01-10 12:06:41,436 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 12:06:41,440 INFO L933 BasicCegarLoop]: 9275 mSDtfsCounter, 9205 mSDsluCounter, 6985 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9205 SdHoareTripleChecker+Valid, 16260 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:41,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9205 Valid, 16260 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:06:41,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29956 states. [2022-01-10 12:06:42,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29956 to 29952. [2022-01-10 12:06:42,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29952 states, 29947 states have (on average 1.8712725815607574) internal successors, (56039), 29951 states have internal predecessors, (56039), 0 states have call successors, (0), 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 12:06:42,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29952 states to 29952 states and 56039 transitions. [2022-01-10 12:06:42,274 INFO L78 Accepts]: Start accepts. Automaton has 29952 states and 56039 transitions. Word has length 46 [2022-01-10 12:06:42,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:42,276 INFO L470 AbstractCegarLoop]: Abstraction has 29952 states and 56039 transitions. [2022-01-10 12:06:42,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 12:06:42,277 INFO L276 IsEmpty]: Start isEmpty. Operand 29952 states and 56039 transitions. [2022-01-10 12:06:42,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 12:06:42,279 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:42,279 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] [2022-01-10 12:06:42,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:06:42,280 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:42,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:42,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1242508331, now seen corresponding path program 1 times [2022-01-10 12:06:42,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:42,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082774955] [2022-01-10 12:06:42,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:42,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:42,346 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 12:06:42,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:42,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082774955] [2022-01-10 12:06:42,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082774955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:42,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:42,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:42,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336422767] [2022-01-10 12:06:42,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:42,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:42,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:42,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:42,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:42,348 INFO L87 Difference]: Start difference. First operand 29952 states and 56039 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 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 12:06:43,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:43,448 INFO L93 Difference]: Finished difference Result 76919 states and 143878 transitions. [2022-01-10 12:06:43,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:43,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2022-01-10 12:06:43,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:43,634 INFO L225 Difference]: With dead ends: 76919 [2022-01-10 12:06:43,635 INFO L226 Difference]: Without dead ends: 57013 [2022-01-10 12:06:43,679 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 12:06:43,682 INFO L933 BasicCegarLoop]: 9275 mSDtfsCounter, 9204 mSDsluCounter, 6988 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9204 SdHoareTripleChecker+Valid, 16263 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:43,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9204 Valid, 16263 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:06:43,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57013 states. [2022-01-10 12:06:44,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57013 to 57007. [2022-01-10 12:06:44,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57007 states, 57002 states have (on average 1.8713203045507176) internal successors, (106669), 57006 states have internal predecessors, (106669), 0 states have call successors, (0), 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 12:06:45,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57007 states to 57007 states and 106669 transitions. [2022-01-10 12:06:45,297 INFO L78 Accepts]: Start accepts. Automaton has 57007 states and 106669 transitions. Word has length 47 [2022-01-10 12:06:45,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:45,297 INFO L470 AbstractCegarLoop]: Abstraction has 57007 states and 106669 transitions. [2022-01-10 12:06:45,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 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 12:06:45,297 INFO L276 IsEmpty]: Start isEmpty. Operand 57007 states and 106669 transitions. [2022-01-10 12:06:45,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-10 12:06:45,300 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:45,300 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] [2022-01-10 12:06:45,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:06:45,302 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:45,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:45,303 INFO L85 PathProgramCache]: Analyzing trace with hash 136972998, now seen corresponding path program 1 times [2022-01-10 12:06:45,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:45,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139098921] [2022-01-10 12:06:45,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:45,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:45,397 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 12:06:45,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:45,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139098921] [2022-01-10 12:06:45,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139098921] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:45,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:45,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:45,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341531941] [2022-01-10 12:06:45,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:45,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:45,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:45,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:45,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:45,399 INFO L87 Difference]: Start difference. First operand 57007 states and 106669 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 12:06:47,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:47,213 INFO L93 Difference]: Finished difference Result 148959 states and 278610 transitions. [2022-01-10 12:06:47,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:47,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2022-01-10 12:06:47,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:47,594 INFO L225 Difference]: With dead ends: 148959 [2022-01-10 12:06:47,595 INFO L226 Difference]: Without dead ends: 109231 [2022-01-10 12:06:47,669 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 12:06:47,669 INFO L933 BasicCegarLoop]: 9276 mSDtfsCounter, 9203 mSDsluCounter, 6991 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9203 SdHoareTripleChecker+Valid, 16267 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:47,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9203 Valid, 16267 Invalid, 36 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:06:47,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109231 states. [2022-01-10 12:06:51,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109231 to 109223. [2022-01-10 12:06:51,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109223 states, 109218 states have (on average 1.8708729330330165) internal successors, (204333), 109222 states have internal predecessors, (204333), 0 states have call successors, (0), 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 12:06:52,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109223 states to 109223 states and 204333 transitions. [2022-01-10 12:06:52,195 INFO L78 Accepts]: Start accepts. Automaton has 109223 states and 204333 transitions. Word has length 48 [2022-01-10 12:06:52,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:52,195 INFO L470 AbstractCegarLoop]: Abstraction has 109223 states and 204333 transitions. [2022-01-10 12:06:52,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 12:06:52,196 INFO L276 IsEmpty]: Start isEmpty. Operand 109223 states and 204333 transitions. [2022-01-10 12:06:52,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 12:06:52,258 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:52,258 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] [2022-01-10 12:06:52,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:06:52,259 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:52,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:52,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1277161279, now seen corresponding path program 1 times [2022-01-10 12:06:52,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:52,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324946995] [2022-01-10 12:06:52,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:52,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:52,372 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 12:06:52,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:52,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324946995] [2022-01-10 12:06:52,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324946995] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:52,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:52,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:52,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964225615] [2022-01-10 12:06:52,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:52,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:52,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:52,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:52,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:52,375 INFO L87 Difference]: Start difference. First operand 109223 states and 204333 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 12:06:56,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:56,195 INFO L93 Difference]: Finished difference Result 223150 states and 417325 transitions. [2022-01-10 12:06:56,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:56,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2022-01-10 12:06:56,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:56,615 INFO L225 Difference]: With dead ends: 223150 [2022-01-10 12:06:56,615 INFO L226 Difference]: Without dead ends: 115865 [2022-01-10 12:06:56,757 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 12:06:56,758 INFO L933 BasicCegarLoop]: 10427 mSDtfsCounter, 7177 mSDsluCounter, 4479 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7177 SdHoareTripleChecker+Valid, 14906 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:56,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7177 Valid, 14906 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-10 12:06:57,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115865 states. [2022-01-10 12:06:59,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115865 to 109223. [2022-01-10 12:06:59,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109223 states, 109218 states have (on average 1.8460601732315187) internal successors, (201623), 109222 states have internal predecessors, (201623), 0 states have call successors, (0), 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 12:07:00,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109223 states to 109223 states and 201623 transitions. [2022-01-10 12:07:00,276 INFO L78 Accepts]: Start accepts. Automaton has 109223 states and 201623 transitions. Word has length 108 [2022-01-10 12:07:00,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:00,277 INFO L470 AbstractCegarLoop]: Abstraction has 109223 states and 201623 transitions. [2022-01-10 12:07:00,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 12:07:00,277 INFO L276 IsEmpty]: Start isEmpty. Operand 109223 states and 201623 transitions. [2022-01-10 12:07:00,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 12:07:00,326 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:00,326 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] [2022-01-10 12:07:00,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:07:00,326 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:07:00,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:00,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1523955514, now seen corresponding path program 1 times [2022-01-10 12:07:00,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:00,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835765617] [2022-01-10 12:07:00,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:00,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:00,398 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 12:07:00,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:00,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835765617] [2022-01-10 12:07:00,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835765617] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:00,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:00,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:00,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873622032] [2022-01-10 12:07:00,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:00,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:00,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:00,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:00,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:00,401 INFO L87 Difference]: Start difference. First operand 109223 states and 201623 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 12:07:03,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:03,953 INFO L93 Difference]: Finished difference Result 227052 states and 419323 transitions. [2022-01-10 12:07:03,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:03,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2022-01-10 12:07:03,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:04,366 INFO L225 Difference]: With dead ends: 227052 [2022-01-10 12:07:04,366 INFO L226 Difference]: Without dead ends: 122339 [2022-01-10 12:07:04,661 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 12:07:04,663 INFO L933 BasicCegarLoop]: 11439 mSDtfsCounter, 6628 mSDsluCounter, 5115 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6628 SdHoareTripleChecker+Valid, 16554 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:04,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6628 Valid, 16554 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 12:07:04,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122339 states. [2022-01-10 12:07:06,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122339 to 109223. [2022-01-10 12:07:07,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109223 states, 109218 states have (on average 1.8247266934021864) internal successors, (199293), 109222 states have internal predecessors, (199293), 0 states have call successors, (0), 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 12:07:07,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109223 states to 109223 states and 199293 transitions. [2022-01-10 12:07:07,602 INFO L78 Accepts]: Start accepts. Automaton has 109223 states and 199293 transitions. Word has length 113 [2022-01-10 12:07:07,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:07,602 INFO L470 AbstractCegarLoop]: Abstraction has 109223 states and 199293 transitions. [2022-01-10 12:07:07,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 12:07:07,602 INFO L276 IsEmpty]: Start isEmpty. Operand 109223 states and 199293 transitions. [2022-01-10 12:07:07,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-10 12:07:07,649 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:07,649 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] [2022-01-10 12:07:07,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:07:07,650 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:07:07,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:07,650 INFO L85 PathProgramCache]: Analyzing trace with hash -986948716, now seen corresponding path program 1 times [2022-01-10 12:07:07,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:07,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340646015] [2022-01-10 12:07:07,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:07,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:07,761 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 12:07:07,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:07,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340646015] [2022-01-10 12:07:07,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340646015] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:07,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:07,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:07,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749971183] [2022-01-10 12:07:07,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:07,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:07,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:07,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:07,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:07,763 INFO L87 Difference]: Start difference. First operand 109223 states and 199293 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 12:07:11,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:11,308 INFO L93 Difference]: Finished difference Result 230300 states and 421187 transitions. [2022-01-10 12:07:11,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:11,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-01-10 12:07:11,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:11,588 INFO L225 Difference]: With dead ends: 230300 [2022-01-10 12:07:11,588 INFO L226 Difference]: Without dead ends: 130479 [2022-01-10 12:07:11,661 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 12:07:11,661 INFO L933 BasicCegarLoop]: 12235 mSDtfsCounter, 6323 mSDsluCounter, 5751 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6323 SdHoareTripleChecker+Valid, 17986 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:11,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6323 Valid, 17986 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 12:07:11,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130479 states. [2022-01-10 12:07:13,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130479 to 109223. [2022-01-10 12:07:13,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109223 states, 109218 states have (on average 1.8077880935376953) internal successors, (197443), 109222 states have internal predecessors, (197443), 0 states have call successors, (0), 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 12:07:14,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109223 states to 109223 states and 197443 transitions. [2022-01-10 12:07:14,169 INFO L78 Accepts]: Start accepts. Automaton has 109223 states and 197443 transitions. Word has length 117 [2022-01-10 12:07:14,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:14,169 INFO L470 AbstractCegarLoop]: Abstraction has 109223 states and 197443 transitions. [2022-01-10 12:07:14,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 12:07:14,169 INFO L276 IsEmpty]: Start isEmpty. Operand 109223 states and 197443 transitions. [2022-01-10 12:07:14,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 12:07:14,478 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:14,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:07:14,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:07:14,478 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:07:14,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:14,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1839522930, now seen corresponding path program 1 times [2022-01-10 12:07:14,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:14,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117701545] [2022-01-10 12:07:14,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:14,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:14,587 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 12:07:14,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:14,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117701545] [2022-01-10 12:07:14,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117701545] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:14,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:14,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:14,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585755693] [2022-01-10 12:07:14,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:14,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:14,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:14,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:14,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:14,590 INFO L87 Difference]: Start difference. First operand 109223 states and 197443 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 12:07:17,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:17,869 INFO L93 Difference]: Finished difference Result 233188 states and 423811 transitions. [2022-01-10 12:07:17,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:17,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2022-01-10 12:07:17,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:18,355 INFO L225 Difference]: With dead ends: 233188 [2022-01-10 12:07:18,355 INFO L226 Difference]: Without dead ends: 139989 [2022-01-10 12:07:18,471 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 12:07:18,472 INFO L933 BasicCegarLoop]: 13011 mSDtfsCounter, 6058 mSDsluCounter, 6387 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6058 SdHoareTripleChecker+Valid, 19398 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:18,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6058 Valid, 19398 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 12:07:18,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139989 states. [2022-01-10 12:07:20,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139989 to 109223. [2022-01-10 12:07:21,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109223 states, 109218 states have (on average 1.79615997363072) internal successors, (196173), 109222 states have internal predecessors, (196173), 0 states have call successors, (0), 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 12:07:21,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109223 states to 109223 states and 196173 transitions. [2022-01-10 12:07:21,379 INFO L78 Accepts]: Start accepts. Automaton has 109223 states and 196173 transitions. Word has length 120 [2022-01-10 12:07:21,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:21,379 INFO L470 AbstractCegarLoop]: Abstraction has 109223 states and 196173 transitions. [2022-01-10 12:07:21,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 12:07:21,379 INFO L276 IsEmpty]: Start isEmpty. Operand 109223 states and 196173 transitions. [2022-01-10 12:07:21,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 12:07:21,422 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:21,422 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] [2022-01-10 12:07:21,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:07:21,423 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:07:21,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:21,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1056770244, now seen corresponding path program 1 times [2022-01-10 12:07:21,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:21,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383593924] [2022-01-10 12:07:21,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:21,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:21,476 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 12:07:21,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:21,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383593924] [2022-01-10 12:07:21,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383593924] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:21,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:21,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:21,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727205846] [2022-01-10 12:07:21,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:21,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:21,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:21,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:21,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:21,478 INFO L87 Difference]: Start difference. First operand 109223 states and 196173 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 12:07:24,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:24,730 INFO L93 Difference]: Finished difference Result 236004 states and 427853 transitions. [2022-01-10 12:07:24,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:24,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2022-01-10 12:07:24,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:25,062 INFO L225 Difference]: With dead ends: 236004 [2022-01-10 12:07:25,063 INFO L226 Difference]: Without dead ends: 150115