/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_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:51:21,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:51:21,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:51:21,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:51:21,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:51:21,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:51:21,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:51:21,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:51:21,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:51:21,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:51:21,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:51:21,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:51:21,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:51:21,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:51:21,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:51:21,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:51:21,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:51:21,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:51:21,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:51:21,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:51:21,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:51:21,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:51:21,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:51:21,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:51:21,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:51:21,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:51:21,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:51:21,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:51:21,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:51:21,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:51:21,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:51:21,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:51:21,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:51:21,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:51:21,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:51:21,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:51:21,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:51:21,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:51:21,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:51:21,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:51:21,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:51:21,399 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:51:21,422 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:51:21,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:51:21,422 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:51:21,422 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:51:21,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:51:21,423 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:51:21,423 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:51:21,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:51:21,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:51:21,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:51:21,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:51:21,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:51:21,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:51:21,424 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:51:21,425 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:51:21,425 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:51:21,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:51:21,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:51:21,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:51:21,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:51:21,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:51:21,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:51:21,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:51:21,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:51:21,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:51:21,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:51:21,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:51:21,426 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:51:21,427 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:51:21,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:51:21,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:51:21,427 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:51:21,427 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:51:21,427 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:51:21,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:51:21,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:51:21,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:51:21,642 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:51:21,642 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:51:21,643 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2022-01-11 05:51:21,679 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5b7dfec9/be4273e8fc5c4fdb986ccefd31c6dfe6/FLAG85416efd5 [2022-01-11 05:51:22,073 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:51:22,073 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2022-01-11 05:51:22,085 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5b7dfec9/be4273e8fc5c4fdb986ccefd31c6dfe6/FLAG85416efd5 [2022-01-11 05:51:22,096 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5b7dfec9/be4273e8fc5c4fdb986ccefd31c6dfe6 [2022-01-11 05:51:22,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:51:22,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:51:22,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:51:22,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:51:22,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:51:22,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:51:22" (1/1) ... [2022-01-11 05:51:22,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c10471c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:22, skipping insertion in model container [2022-01-11 05:51:22,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:51:22" (1/1) ... [2022-01-11 05:51:22,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:51:22,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:51:22,358 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/minepump_spec1_product55.cil.c[7923,7936] [2022-01-11 05:51:22,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:51:22,420 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:51:22,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:51:22,441 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/minepump_spec1_product55.cil.c[7923,7936] [2022-01-11 05:51:22,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:51:22,474 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:51:22,498 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/minepump_spec1_product55.cil.c[7923,7936] [2022-01-11 05:51:22,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:51:22,533 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:51:22,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:22 WrapperNode [2022-01-11 05:51:22,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:51:22,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:51:22,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:51:22,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:51:22,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:22" (1/1) ... [2022-01-11 05:51:22,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:22" (1/1) ... [2022-01-11 05:51:22,590 INFO L137 Inliner]: procedures = 59, calls = 160, calls flagged for inlining = 57, calls inlined = 139, statements flattened = 1008 [2022-01-11 05:51:22,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:51:22,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:51:22,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:51:22,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:51:22,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:22" (1/1) ... [2022-01-11 05:51:22,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:22" (1/1) ... [2022-01-11 05:51:22,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:22" (1/1) ... [2022-01-11 05:51:22,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:22" (1/1) ... [2022-01-11 05:51:22,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:22" (1/1) ... [2022-01-11 05:51:22,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:22" (1/1) ... [2022-01-11 05:51:22,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:22" (1/1) ... [2022-01-11 05:51:22,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:51:22,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:51:22,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:51:22,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:51:22,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:22" (1/1) ... [2022-01-11 05:51:22,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:51:22,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:51:22,675 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) [2022-01-11 05:51:22,681 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 [2022-01-11 05:51:22,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:51:22,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:51:22,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:51:22,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:51:22,756 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:51:22,757 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:51:23,229 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:51:23,241 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:51:23,242 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-11 05:51:23,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:51:23 BoogieIcfgContainer [2022-01-11 05:51:23,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:51:23,245 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:51:23,245 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:51:23,246 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:51:23,248 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:51:23" (1/1) ... [2022-01-11 05:51:23,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:51:23 BasicIcfg [2022-01-11 05:51:23,359 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:51:23,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:51:23,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:51:23,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:51:23,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:51:22" (1/4) ... [2022-01-11 05:51:23,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3221fb40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:51:23, skipping insertion in model container [2022-01-11 05:51:23,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:51:22" (2/4) ... [2022-01-11 05:51:23,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3221fb40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:51:23, skipping insertion in model container [2022-01-11 05:51:23,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:51:23" (3/4) ... [2022-01-11 05:51:23,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3221fb40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:51:23, skipping insertion in model container [2022-01-11 05:51:23,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:51:23" (4/4) ... [2022-01-11 05:51:23,364 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.cTransformedIcfg [2022-01-11 05:51:23,367 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:51:23,368 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 05:51:23,405 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:51:23,409 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 [2022-01-11 05:51:23,410 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 05:51:23,430 INFO L276 IsEmpty]: Start isEmpty. Operand has 277 states, 273 states have (on average 1.380952380952381) internal successors, (377), 276 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:23,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-11 05:51:23,435 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:51:23,435 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:51:23,438 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:51:23,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:51:23,446 INFO L85 PathProgramCache]: Analyzing trace with hash 496199135, now seen corresponding path program 1 times [2022-01-11 05:51:23,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:51:23,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651322794] [2022-01-11 05:51:23,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:51:23,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:51:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:51:23,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:51:23,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:51:23,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651322794] [2022-01-11 05:51:23,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651322794] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:51:23,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:51:23,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:51:23,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813476269] [2022-01-11 05:51:23,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:51:23,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 05:51:23,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:51:23,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 05:51:23,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:51:23,656 INFO L87 Difference]: Start difference. First operand has 277 states, 273 states have (on average 1.380952380952381) internal successors, (377), 276 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:23,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:51:23,704 INFO L93 Difference]: Finished difference Result 544 states and 743 transitions. [2022-01-11 05:51:23,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 05:51:23,706 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-01-11 05:51:23,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:51:23,715 INFO L225 Difference]: With dead ends: 544 [2022-01-11 05:51:23,716 INFO L226 Difference]: Without dead ends: 267 [2022-01-11 05:51:23,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:51:23,721 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:51:23,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:51:23,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-01-11 05:51:23,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2022-01-11 05:51:23,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 264 states have (on average 1.3598484848484849) internal successors, (359), 266 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:23,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 359 transitions. [2022-01-11 05:51:23,778 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 359 transitions. Word has length 17 [2022-01-11 05:51:23,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:51:23,778 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 359 transitions. [2022-01-11 05:51:23,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:23,778 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 359 transitions. [2022-01-11 05:51:23,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-11 05:51:23,779 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:51:23,779 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:51:23,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:51:23,780 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:51:23,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:51:23,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1890314988, now seen corresponding path program 1 times [2022-01-11 05:51:23,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:51:23,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326366831] [2022-01-11 05:51:23,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:51:23,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:51:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:51:23,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:51:23,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:51:23,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326366831] [2022-01-11 05:51:23,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326366831] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:51:23,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:51:23,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:51:23,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610765259] [2022-01-11 05:51:23,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:51:23,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:51:23,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:51:23,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:51:23,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:51:23,855 INFO L87 Difference]: Start difference. First operand 267 states and 359 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:23,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:51:23,894 INFO L93 Difference]: Finished difference Result 588 states and 792 transitions. [2022-01-11 05:51:23,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:51:23,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2022-01-11 05:51:23,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:51:23,896 INFO L225 Difference]: With dead ends: 588 [2022-01-11 05:51:23,896 INFO L226 Difference]: Without dead ends: 328 [2022-01-11 05:51:23,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:51:23,898 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 343 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:51:23,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 441 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:51:23,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-01-11 05:51:23,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 319. [2022-01-11 05:51:23,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 316 states have (on average 1.360759493670886) internal successors, (430), 318 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:23,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 430 transitions. [2022-01-11 05:51:23,910 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 430 transitions. Word has length 18 [2022-01-11 05:51:23,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:51:23,910 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 430 transitions. [2022-01-11 05:51:23,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:23,911 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 430 transitions. [2022-01-11 05:51:23,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-11 05:51:23,912 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:51:23,912 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] [2022-01-11 05:51:23,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:51:23,912 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:51:23,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:51:23,913 INFO L85 PathProgramCache]: Analyzing trace with hash 133711238, now seen corresponding path program 1 times [2022-01-11 05:51:23,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:51:23,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654239449] [2022-01-11 05:51:23,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:51:23,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:51:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:51:23,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:51:23,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:51:23,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654239449] [2022-01-11 05:51:23,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654239449] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:51:23,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:51:23,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:51:23,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300370040] [2022-01-11 05:51:23,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:51:23,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:51:23,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:51:23,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:51:23,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:51:23,963 INFO L87 Difference]: Start difference. First operand 319 states and 430 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:24,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:51:24,077 INFO L93 Difference]: Finished difference Result 642 states and 860 transitions. [2022-01-11 05:51:24,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:51:24,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2022-01-11 05:51:24,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:51:24,080 INFO L225 Difference]: With dead ends: 642 [2022-01-11 05:51:24,081 INFO L226 Difference]: Without dead ends: 330 [2022-01-11 05:51:24,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:51:24,083 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 180 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:51:24,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 407 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:51:24,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-01-11 05:51:24,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 324. [2022-01-11 05:51:24,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 321 states have (on average 1.2928348909657321) internal successors, (415), 323 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:24,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 415 transitions. [2022-01-11 05:51:24,105 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 415 transitions. Word has length 24 [2022-01-11 05:51:24,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:51:24,105 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 415 transitions. [2022-01-11 05:51:24,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:24,106 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 415 transitions. [2022-01-11 05:51:24,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-11 05:51:24,106 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:51:24,107 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] [2022-01-11 05:51:24,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:51:24,108 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:51:24,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:51:24,108 INFO L85 PathProgramCache]: Analyzing trace with hash -843024082, now seen corresponding path program 1 times [2022-01-11 05:51:24,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:51:24,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536564260] [2022-01-11 05:51:24,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:51:24,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:51:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:51:24,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:51:24,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:51:24,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536564260] [2022-01-11 05:51:24,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536564260] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:51:24,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:51:24,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:51:24,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044386904] [2022-01-11 05:51:24,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:51:24,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:51:24,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:51:24,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:51:24,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:51:24,178 INFO L87 Difference]: Start difference. First operand 324 states and 415 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:24,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:51:24,351 INFO L93 Difference]: Finished difference Result 1424 states and 1828 transitions. [2022-01-11 05:51:24,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:51:24,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2022-01-11 05:51:24,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:51:24,361 INFO L225 Difference]: With dead ends: 1424 [2022-01-11 05:51:24,361 INFO L226 Difference]: Without dead ends: 916 [2022-01-11 05:51:24,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:51:24,371 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 1103 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:51:24,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1103 Valid, 1320 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:51:24,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2022-01-11 05:51:24,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 448. [2022-01-11 05:51:24,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 445 states have (on average 1.2876404494382023) internal successors, (573), 447 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:24,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 573 transitions. [2022-01-11 05:51:24,395 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 573 transitions. Word has length 28 [2022-01-11 05:51:24,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:51:24,396 INFO L470 AbstractCegarLoop]: Abstraction has 448 states and 573 transitions. [2022-01-11 05:51:24,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:24,396 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 573 transitions. [2022-01-11 05:51:24,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-11 05:51:24,397 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:51:24,397 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] [2022-01-11 05:51:24,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:51:24,397 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:51:24,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:51:24,398 INFO L85 PathProgramCache]: Analyzing trace with hash -953913148, now seen corresponding path program 1 times [2022-01-11 05:51:24,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:51:24,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771223549] [2022-01-11 05:51:24,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:51:24,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:51:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:51:24,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:51:24,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:51:24,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771223549] [2022-01-11 05:51:24,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771223549] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:51:24,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:51:24,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:51:24,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996396264] [2022-01-11 05:51:24,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:51:24,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:51:24,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:51:24,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:51:24,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:51:24,479 INFO L87 Difference]: Start difference. First operand 448 states and 573 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:24,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:51:24,714 INFO L93 Difference]: Finished difference Result 1323 states and 1679 transitions. [2022-01-11 05:51:24,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:51:24,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2022-01-11 05:51:24,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:51:24,719 INFO L225 Difference]: With dead ends: 1323 [2022-01-11 05:51:24,719 INFO L226 Difference]: Without dead ends: 1317 [2022-01-11 05:51:24,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:51:24,722 INFO L933 BasicCegarLoop]: 697 mSDtfsCounter, 897 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 2045 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:51:24,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [897 Valid, 2045 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:51:24,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2022-01-11 05:51:24,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 448. [2022-01-11 05:51:24,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 445 states have (on average 1.2741573033707865) internal successors, (567), 447 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:24,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 567 transitions. [2022-01-11 05:51:24,759 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 567 transitions. Word has length 30 [2022-01-11 05:51:24,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:51:24,762 INFO L470 AbstractCegarLoop]: Abstraction has 448 states and 567 transitions. [2022-01-11 05:51:24,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:24,763 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 567 transitions. [2022-01-11 05:51:24,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-11 05:51:24,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:51:24,769 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] [2022-01-11 05:51:24,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:51:24,769 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:51:24,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:51:24,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1682926318, now seen corresponding path program 1 times [2022-01-11 05:51:24,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:51:24,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379745299] [2022-01-11 05:51:24,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:51:24,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:51:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:51:24,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:51:24,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:51:24,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379745299] [2022-01-11 05:51:24,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379745299] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:51:24,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:51:24,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:51:24,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314994755] [2022-01-11 05:51:24,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:51:24,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:51:24,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:51:24,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:51:24,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:51:24,849 INFO L87 Difference]: Start difference. First operand 448 states and 567 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:25,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:51:25,040 INFO L93 Difference]: Finished difference Result 1269 states and 1587 transitions. [2022-01-11 05:51:25,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:51:25,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-01-11 05:51:25,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:51:25,043 INFO L225 Difference]: With dead ends: 1269 [2022-01-11 05:51:25,043 INFO L226 Difference]: Without dead ends: 828 [2022-01-11 05:51:25,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:51:25,045 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 428 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:51:25,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [428 Valid, 1208 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:51:25,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2022-01-11 05:51:25,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 484. [2022-01-11 05:51:25,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 481 states have (on average 1.2536382536382535) internal successors, (603), 483 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:25,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 603 transitions. [2022-01-11 05:51:25,088 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 603 transitions. Word has length 39 [2022-01-11 05:51:25,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:51:25,089 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 603 transitions. [2022-01-11 05:51:25,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:25,089 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 603 transitions. [2022-01-11 05:51:25,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-11 05:51:25,090 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:51:25,090 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] [2022-01-11 05:51:25,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:51:25,090 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:51:25,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:51:25,091 INFO L85 PathProgramCache]: Analyzing trace with hash 2106482353, now seen corresponding path program 1 times [2022-01-11 05:51:25,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:51:25,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862144353] [2022-01-11 05:51:25,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:51:25,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:51:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:51:25,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:51:25,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:51:25,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862144353] [2022-01-11 05:51:25,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862144353] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:51:25,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:51:25,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:51:25,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021997086] [2022-01-11 05:51:25,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:51:25,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:51:25,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:51:25,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:51:25,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:51:25,137 INFO L87 Difference]: Start difference. First operand 484 states and 603 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:25,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:51:25,280 INFO L93 Difference]: Finished difference Result 1397 states and 1715 transitions. [2022-01-11 05:51:25,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:51:25,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-01-11 05:51:25,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:51:25,283 INFO L225 Difference]: With dead ends: 1397 [2022-01-11 05:51:25,283 INFO L226 Difference]: Without dead ends: 920 [2022-01-11 05:51:25,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:51:25,285 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 380 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:51:25,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 901 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:51:25,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2022-01-11 05:51:25,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 508. [2022-01-11 05:51:25,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 505 states have (on average 1.2415841584158416) internal successors, (627), 507 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:25,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 627 transitions. [2022-01-11 05:51:25,328 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 627 transitions. Word has length 39 [2022-01-11 05:51:25,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:51:25,329 INFO L470 AbstractCegarLoop]: Abstraction has 508 states and 627 transitions. [2022-01-11 05:51:25,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:25,329 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 627 transitions. [2022-01-11 05:51:25,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-11 05:51:25,330 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:51:25,330 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] [2022-01-11 05:51:25,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:51:25,331 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:51:25,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:51:25,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1595948176, now seen corresponding path program 1 times [2022-01-11 05:51:25,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:51:25,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786569134] [2022-01-11 05:51:25,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:51:25,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:51:25,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:51:25,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:51:25,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:51:25,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786569134] [2022-01-11 05:51:25,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786569134] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:51:25,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:51:25,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:51:25,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349258728] [2022-01-11 05:51:25,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:51:25,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:51:25,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:51:25,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:51:25,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:51:25,398 INFO L87 Difference]: Start difference. First operand 508 states and 627 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:25,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:51:25,498 INFO L93 Difference]: Finished difference Result 1197 states and 1473 transitions. [2022-01-11 05:51:25,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:51:25,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-01-11 05:51:25,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:51:25,500 INFO L225 Difference]: With dead ends: 1197 [2022-01-11 05:51:25,500 INFO L226 Difference]: Without dead ends: 624 [2022-01-11 05:51:25,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:51:25,501 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 82 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:51:25,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 510 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:51:25,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2022-01-11 05:51:25,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 624. [2022-01-11 05:51:25,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 621 states have (on average 1.2318840579710144) internal successors, (765), 623 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:25,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 765 transitions. [2022-01-11 05:51:25,542 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 765 transitions. Word has length 39 [2022-01-11 05:51:25,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:51:25,542 INFO L470 AbstractCegarLoop]: Abstraction has 624 states and 765 transitions. [2022-01-11 05:51:25,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:51:25,543 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 765 transitions. [2022-01-11 05:51:25,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-11 05:51:25,543 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:51:25,543 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] [2022-01-11 05:51:25,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:51:25,543 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:51:25,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:51:25,544 INFO L85 PathProgramCache]: Analyzing trace with hash 95230550, now seen corresponding path program 1 times [2022-01-11 05:51:25,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:51:25,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154797245] [2022-01-11 05:51:25,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:51:25,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:51:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 05:51:25,557 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-11 05:51:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 05:51:25,582 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-11 05:51:25,582 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-11 05:51:25,583 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-11 05:51:25,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-11 05:51:25,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-11 05:51:25,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:51:25,586 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:51:25,588 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 05:51:25,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:51:25 BasicIcfg [2022-01-11 05:51:25,634 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 05:51:25,634 INFO L158 Benchmark]: Toolchain (without parser) took 3535.76ms. Allocated memory was 203.4MB in the beginning and 282.1MB in the end (delta: 78.6MB). Free memory was 147.5MB in the beginning and 142.6MB in the end (delta: 4.9MB). Peak memory consumption was 84.7MB. Max. memory is 8.0GB. [2022-01-11 05:51:25,635 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 203.4MB. Free memory is still 165.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 05:51:25,635 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.69ms. Allocated memory was 203.4MB in the beginning and 282.1MB in the end (delta: 78.6MB). Free memory was 147.3MB in the beginning and 239.8MB in the end (delta: -92.5MB). Peak memory consumption was 8.0MB. Max. memory is 8.0GB. [2022-01-11 05:51:25,635 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.52ms. Allocated memory is still 282.1MB. Free memory was 239.8MB in the beginning and 235.1MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-01-11 05:51:25,635 INFO L158 Benchmark]: Boogie Preprocessor took 43.26ms. Allocated memory is still 282.1MB. Free memory was 235.1MB in the beginning and 232.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-11 05:51:25,635 INFO L158 Benchmark]: RCFGBuilder took 609.94ms. Allocated memory is still 282.1MB. Free memory was 232.0MB in the beginning and 199.0MB in the end (delta: 33.0MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2022-01-11 05:51:25,636 INFO L158 Benchmark]: IcfgTransformer took 113.75ms. Allocated memory is still 282.1MB. Free memory was 199.0MB in the beginning and 184.8MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-01-11 05:51:25,636 INFO L158 Benchmark]: TraceAbstraction took 2274.10ms. Allocated memory is still 282.1MB. Free memory was 184.3MB in the beginning and 142.6MB in the end (delta: 41.7MB). Peak memory consumption was 42.8MB. Max. memory is 8.0GB. [2022-01-11 05:51:25,637 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 203.4MB. Free memory is still 165.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 434.69ms. Allocated memory was 203.4MB in the beginning and 282.1MB in the end (delta: 78.6MB). Free memory was 147.3MB in the beginning and 239.8MB in the end (delta: -92.5MB). Peak memory consumption was 8.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.52ms. Allocated memory is still 282.1MB. Free memory was 239.8MB in the beginning and 235.1MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.26ms. Allocated memory is still 282.1MB. Free memory was 235.1MB in the beginning and 232.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 609.94ms. Allocated memory is still 282.1MB. Free memory was 232.0MB in the beginning and 199.0MB in the end (delta: 33.0MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * IcfgTransformer took 113.75ms. Allocated memory is still 282.1MB. Free memory was 199.0MB in the beginning and 184.8MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2274.10ms. Allocated memory is still 282.1MB. Free memory was 184.3MB in the beginning and 142.6MB in the end (delta: 41.7MB). Peak memory consumption was 42.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 516]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L169] int pumpRunning = 0; [L170] int systemActive = 1; [L409] int waterLevel = 1; [L410] int methaneLevelCritical = 0; [L521] int cleanupTimeShifts = 4; [L812] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L594] int retValue_acc ; [L595] int tmp ; [L599] FCALL select_helpers() [L600] FCALL select_features() [L601] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L601] RET, EXPR valid_product() [L601] tmp = valid_product() [L603] COND TRUE \read(tmp) [L605] FCALL setup() [L606] CALL runTest() [L588] CALL test() [L94] int splverifierCounter ; [L95] int tmp ; [L96] int tmp___0 ; [L97] int tmp___1 ; [L98] int tmp___2 ; [L101] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L103] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L105] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L111] tmp = __VERIFIER_nondet_int() [L113] COND TRUE \read(tmp) [L115] CALL waterRise() [L427] COND TRUE waterLevel < 2 [L428] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L115] RET waterRise() [L121] tmp___0 = __VERIFIER_nondet_int() [L123] COND TRUE \read(tmp___0) [L125] CALL changeMethaneLevel() [L439] COND FALSE !(\read(methaneLevelCritical)) [L442] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L125] RET changeMethaneLevel() [L131] tmp___2 = __VERIFIER_nondet_int() [L133] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L148] CALL timeShift() [L177] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L184] COND TRUE \read(systemActive) [L186] CALL processEnvironment() [L258] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L261] COND FALSE !(\read(pumpRunning)) [L276] CALL processEnvironment__wrappee__lowWaterSensor() [L232] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L235] COND FALSE !(\read(pumpRunning)) [L250] CALL processEnvironment__wrappee__highWaterSensor() [L206] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L209] COND TRUE ! pumpRunning [L211] CALL, EXPR isHighWaterLevel() [L355] int retValue_acc ; [L356] int tmp ; [L357] int tmp___0 ; [L361] CALL, EXPR isHighWaterSensorDry() [L489] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L492] COND FALSE !(waterLevel < 2) [L496] retValue_acc = 0 [L497] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L361] RET, EXPR isHighWaterSensorDry() [L361] tmp = isHighWaterSensorDry() [L363] COND FALSE !(\read(tmp)) [L366] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L368] retValue_acc = tmp___0 [L369] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L211] RET, EXPR isHighWaterLevel() [L211] tmp = isHighWaterLevel() [L213] COND TRUE \read(tmp) [L215] CALL activatePump() [L286] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L215] RET activatePump() [L250] RET processEnvironment__wrappee__highWaterSensor() [L276] RET processEnvironment__wrappee__lowWaterSensor() [L186] RET processEnvironment() [L192] CALL __utac_acc__Specification1_spec__1() [L618] int tmp ; [L619] int tmp___0 ; [L623] CALL, EXPR isMethaneLevelCritical() [L448] int retValue_acc ; [L451] retValue_acc = methaneLevelCritical [L452] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L623] RET, EXPR isMethaneLevelCritical() [L623] tmp = isMethaneLevelCritical() [L625] COND TRUE \read(tmp) [L627] CALL, EXPR isPumpRunning() [L310] int retValue_acc ; [L313] retValue_acc = pumpRunning [L314] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L627] RET, EXPR isPumpRunning() [L627] tmp___0 = isPumpRunning() [L629] COND TRUE \read(tmp___0) [L631] CALL __automaton_fail() [L516] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 516]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 516]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 277 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3413 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3413 mSDsluCounter, 7199 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4217 mSDsCounter, 172 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 554 IncrementalHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 172 mSolverCounterUnsat, 2982 mSDtfsCounter, 554 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=624occurred in iteration=8, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 2108 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 275 NumberOfCodeBlocks, 275 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 657 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-11 05:51:25,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...