/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 18:13:32,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 18:13:32,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 18:13:32,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 18:13:32,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 18:13:32,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 18:13:32,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 18:13:32,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 18:13:32,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 18:13:32,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 18:13:32,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 18:13:32,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 18:13:32,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 18:13:32,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 18:13:32,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 18:13:32,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 18:13:32,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 18:13:32,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 18:13:32,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 18:13:32,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 18:13:32,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 18:13:32,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 18:13:32,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 18:13:32,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 18:13:32,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 18:13:32,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 18:13:32,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 18:13:32,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 18:13:32,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 18:13:32,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 18:13:32,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 18:13:32,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 18:13:32,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 18:13:32,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 18:13:32,737 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 18:13:32,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 18:13:32,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 18:13:32,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 18:13:32,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 18:13:32,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 18:13:32,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 18:13:32,741 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 18:13:32,758 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 18:13:32,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 18:13:32,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 18:13:32,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 18:13:32,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 18:13:32,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 18:13:32,764 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 18:13:32,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 18:13:32,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 18:13:32,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 18:13:32,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 18:13:32,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 18:13:32,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 18:13:32,765 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 18:13:32,765 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 18:13:32,765 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 18:13:32,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 18:13:32,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 18:13:32,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 18:13:32,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 18:13:32,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 18:13:32,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:13:32,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 18:13:32,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 18:13:32,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 18:13:32,766 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 18:13:32,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 18:13:32,766 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 18:13:32,766 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 18:13:32,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 18:13:32,766 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 18:13:32,767 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 18:13:32,767 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 18:13:32,767 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 18:13:32,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 18:13:32,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 18:13:32,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 18:13:32,979 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 18:13:32,980 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 18:13:32,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2022-01-10 18:13:33,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cecdfd18e/af889ba7a5524623bb2b31c2eeca7600/FLAG265c63544 [2022-01-10 18:13:33,425 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 18:13:33,426 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2022-01-10 18:13:33,435 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cecdfd18e/af889ba7a5524623bb2b31c2eeca7600/FLAG265c63544 [2022-01-10 18:13:33,446 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cecdfd18e/af889ba7a5524623bb2b31c2eeca7600 [2022-01-10 18:13:33,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 18:13:33,454 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 18:13:33,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 18:13:33,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 18:13:33,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 18:13:33,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:13:33" (1/1) ... [2022-01-10 18:13:33,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e3a8b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:33, skipping insertion in model container [2022-01-10 18:13:33,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:13:33" (1/1) ... [2022-01-10 18:13:33,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 18:13:33,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:13:33,655 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_product40.cil.c[7390,7403] [2022-01-10 18:13:33,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:13:33,700 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 18:13:33,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:13:33,724 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_product40.cil.c[7390,7403] [2022-01-10 18:13:33,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:13:33,780 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 18:13:33,811 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_product40.cil.c[7390,7403] [2022-01-10 18:13:33,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:13:33,847 INFO L208 MainTranslator]: Completed translation [2022-01-10 18:13:33,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:33 WrapperNode [2022-01-10 18:13:33,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 18:13:33,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 18:13:33,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 18:13:33,849 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 18:13:33,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:33" (1/1) ... [2022-01-10 18:13:33,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:33" (1/1) ... [2022-01-10 18:13:33,911 INFO L137 Inliner]: procedures = 57, calls = 156, calls flagged for inlining = 53, calls inlined = 80, statements flattened = 591 [2022-01-10 18:13:33,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 18:13:33,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 18:13:33,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 18:13:33,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 18:13:33,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:33" (1/1) ... [2022-01-10 18:13:33,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:33" (1/1) ... [2022-01-10 18:13:33,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:33" (1/1) ... [2022-01-10 18:13:33,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:33" (1/1) ... [2022-01-10 18:13:33,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:33" (1/1) ... [2022-01-10 18:13:33,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:33" (1/1) ... [2022-01-10 18:13:33,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:33" (1/1) ... [2022-01-10 18:13:33,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 18:13:33,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 18:13:33,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 18:13:33,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 18:13:33,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:33" (1/1) ... [2022-01-10 18:13:33,967 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:13:33,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:13:33,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 18:13:33,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 18:13:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 18:13:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 18:13:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 18:13:34,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 18:13:34,063 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 18:13:34,064 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 18:13:34,344 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 18:13:34,350 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 18:13:34,350 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 18:13:34,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:13:34 BoogieIcfgContainer [2022-01-10 18:13:34,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 18:13:34,352 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 18:13:34,353 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 18:13:34,353 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 18:13:34,355 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:13:34" (1/1) ... [2022-01-10 18:13:34,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:13:34 BasicIcfg [2022-01-10 18:13:34,461 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 18:13:34,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 18:13:34,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 18:13:34,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 18:13:34,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:13:33" (1/4) ... [2022-01-10 18:13:34,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9abdea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:13:34, skipping insertion in model container [2022-01-10 18:13:34,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:33" (2/4) ... [2022-01-10 18:13:34,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9abdea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:13:34, skipping insertion in model container [2022-01-10 18:13:34,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:13:34" (3/4) ... [2022-01-10 18:13:34,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9abdea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:13:34, skipping insertion in model container [2022-01-10 18:13:34,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:13:34" (4/4) ... [2022-01-10 18:13:34,466 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product40.cil.cTransformedIcfg [2022-01-10 18:13:34,470 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 18:13:34,470 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 18:13:34,499 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 18:13:34,503 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 18:13:34,504 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 18:13:34,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 160 states have (on average 1.3875) internal successors, (222), 163 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:34,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 18:13:34,523 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:34,524 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:13:34,524 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:13:34,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:34,528 INFO L85 PathProgramCache]: Analyzing trace with hash -464727872, now seen corresponding path program 1 times [2022-01-10 18:13:34,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:34,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746910641] [2022-01-10 18:13:34,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:34,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:13:34,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:13:34,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:13:34,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746910641] [2022-01-10 18:13:34,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746910641] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:13:34,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:13:34,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:13:34,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120243477] [2022-01-10 18:13:34,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:13:34,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 18:13:34,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:13:34,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 18:13:34,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:13:34,772 INFO L87 Difference]: Start difference. First operand has 164 states, 160 states have (on average 1.3875) internal successors, (222), 163 states have internal predecessors, (222), 0 states have call successors, (0), 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) [2022-01-10 18:13:34,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:13:34,824 INFO L93 Difference]: Finished difference Result 318 states and 433 transitions. [2022-01-10 18:13:34,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 18:13:34,826 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 [2022-01-10 18:13:34,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:13:34,835 INFO L225 Difference]: With dead ends: 318 [2022-01-10 18:13:34,835 INFO L226 Difference]: Without dead ends: 154 [2022-01-10 18:13:34,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:13:34,840 INFO L933 BasicCegarLoop]: 212 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, 212 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:13:34,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:13:34,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-01-10 18:13:34,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2022-01-10 18:13:34,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 151 states have (on average 1.3509933774834437) internal successors, (204), 153 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:34,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 204 transitions. [2022-01-10 18:13:34,885 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 204 transitions. Word has length 17 [2022-01-10 18:13:34,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:13:34,886 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 204 transitions. [2022-01-10 18:13:34,886 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) [2022-01-10 18:13:34,887 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 204 transitions. [2022-01-10 18:13:34,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 18:13:34,887 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:34,887 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:13:34,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 18:13:34,888 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:13:34,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:34,888 INFO L85 PathProgramCache]: Analyzing trace with hash -2128529339, now seen corresponding path program 1 times [2022-01-10 18:13:34,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:34,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116278185] [2022-01-10 18:13:34,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:34,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:13:35,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:13:35,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:13:35,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116278185] [2022-01-10 18:13:35,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116278185] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:13:35,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:13:35,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:13:35,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230637270] [2022-01-10 18:13:35,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:13:35,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:13:35,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:13:35,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:13:35,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:13:35,006 INFO L87 Difference]: Start difference. First operand 154 states and 204 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) [2022-01-10 18:13:35,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:13:35,066 INFO L93 Difference]: Finished difference Result 362 states and 482 transitions. [2022-01-10 18:13:35,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:13:35,067 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 [2022-01-10 18:13:35,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:13:35,068 INFO L225 Difference]: With dead ends: 362 [2022-01-10 18:13:35,069 INFO L226 Difference]: Without dead ends: 215 [2022-01-10 18:13:35,069 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 [2022-01-10 18:13:35,070 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 187 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:13:35,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 285 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:13:35,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-01-10 18:13:35,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 206. [2022-01-10 18:13:35,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 203 states have (on average 1.354679802955665) internal successors, (275), 205 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:35,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 275 transitions. [2022-01-10 18:13:35,081 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 275 transitions. Word has length 18 [2022-01-10 18:13:35,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:13:35,081 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 275 transitions. [2022-01-10 18:13:35,081 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) [2022-01-10 18:13:35,082 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 275 transitions. [2022-01-10 18:13:35,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-10 18:13:35,082 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:35,082 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] [2022-01-10 18:13:35,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 18:13:35,083 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:13:35,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:35,083 INFO L85 PathProgramCache]: Analyzing trace with hash 580169625, now seen corresponding path program 1 times [2022-01-10 18:13:35,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:35,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063694098] [2022-01-10 18:13:35,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:35,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:13:35,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:13:35,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:13:35,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063694098] [2022-01-10 18:13:35,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063694098] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:13:35,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:13:35,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:13:35,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633451492] [2022-01-10 18:13:35,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:13:35,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:13:35,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:13:35,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:13:35,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:13:35,126 INFO L87 Difference]: Start difference. First operand 206 states and 275 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:35,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:13:35,217 INFO L93 Difference]: Finished difference Result 462 states and 614 transitions. [2022-01-10 18:13:35,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:13:35,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2022-01-10 18:13:35,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:13:35,219 INFO L225 Difference]: With dead ends: 462 [2022-01-10 18:13:35,219 INFO L226 Difference]: Without dead ends: 263 [2022-01-10 18:13:35,220 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 [2022-01-10 18:13:35,220 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 135 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:13:35,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 301 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:13:35,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2022-01-10 18:13:35,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 257. [2022-01-10 18:13:35,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 254 states have (on average 1.2992125984251968) internal successors, (330), 256 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:35,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 330 transitions. [2022-01-10 18:13:35,234 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 330 transitions. Word has length 23 [2022-01-10 18:13:35,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:13:35,234 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 330 transitions. [2022-01-10 18:13:35,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:35,234 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 330 transitions. [2022-01-10 18:13:35,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-10 18:13:35,235 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:35,235 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] [2022-01-10 18:13:35,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 18:13:35,236 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:13:35,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:35,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1638591705, now seen corresponding path program 1 times [2022-01-10 18:13:35,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:35,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710733672] [2022-01-10 18:13:35,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:35,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:13:35,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:13:35,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:13:35,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710733672] [2022-01-10 18:13:35,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710733672] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:13:35,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:13:35,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:13:35,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023489650] [2022-01-10 18:13:35,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:13:35,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:13:35,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:13:35,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:13:35,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:13:35,325 INFO L87 Difference]: Start difference. First operand 257 states and 330 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) [2022-01-10 18:13:35,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:13:35,505 INFO L93 Difference]: Finished difference Result 754 states and 959 transitions. [2022-01-10 18:13:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:13:35,505 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 [2022-01-10 18:13:35,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:13:35,507 INFO L225 Difference]: With dead ends: 754 [2022-01-10 18:13:35,508 INFO L226 Difference]: Without dead ends: 748 [2022-01-10 18:13:35,508 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 [2022-01-10 18:13:35,509 INFO L933 BasicCegarLoop]: 480 mSDtfsCounter, 689 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:13:35,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [689 Valid, 1453 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:13:35,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2022-01-10 18:13:35,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 257. [2022-01-10 18:13:35,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 254 states have (on average 1.2755905511811023) internal successors, (324), 256 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:35,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 324 transitions. [2022-01-10 18:13:35,525 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 324 transitions. Word has length 28 [2022-01-10 18:13:35,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:13:35,525 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 324 transitions. [2022-01-10 18:13:35,525 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) [2022-01-10 18:13:35,526 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 324 transitions. [2022-01-10 18:13:35,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-10 18:13:35,526 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:35,526 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] [2022-01-10 18:13:35,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 18:13:35,527 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:13:35,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:35,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1693335448, now seen corresponding path program 1 times [2022-01-10 18:13:35,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:35,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141319820] [2022-01-10 18:13:35,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:35,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:13:35,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:13:35,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:13:35,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141319820] [2022-01-10 18:13:35,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141319820] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:13:35,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:13:35,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:13:35,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797967099] [2022-01-10 18:13:35,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:13:35,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:13:35,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:13:35,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:13:35,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:13:35,616 INFO L87 Difference]: Start difference. First operand 257 states and 324 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:35,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:13:35,734 INFO L93 Difference]: Finished difference Result 744 states and 930 transitions. [2022-01-10 18:13:35,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 18:13:35,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2022-01-10 18:13:35,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:13:35,737 INFO L225 Difference]: With dead ends: 744 [2022-01-10 18:13:35,737 INFO L226 Difference]: Without dead ends: 494 [2022-01-10 18:13:35,738 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 [2022-01-10 18:13:35,741 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 354 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:13:35,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 905 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:13:35,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-01-10 18:13:35,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 275. [2022-01-10 18:13:35,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 272 states have (on average 1.2573529411764706) internal successors, (342), 274 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:35,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 342 transitions. [2022-01-10 18:13:35,766 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 342 transitions. Word has length 29 [2022-01-10 18:13:35,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:13:35,770 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 342 transitions. [2022-01-10 18:13:35,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:35,770 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 342 transitions. [2022-01-10 18:13:35,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-10 18:13:35,772 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:35,772 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] [2022-01-10 18:13:35,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 18:13:35,772 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:13:35,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:35,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1399932441, now seen corresponding path program 1 times [2022-01-10 18:13:35,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:35,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853880261] [2022-01-10 18:13:35,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:35,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:13:35,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:13:35,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:13:35,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853880261] [2022-01-10 18:13:35,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853880261] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:13:35,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:13:35,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:13:35,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934259952] [2022-01-10 18:13:35,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:13:35,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:13:35,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:13:35,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:13:35,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:13:35,834 INFO L87 Difference]: Start difference. First operand 275 states and 342 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:35,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:13:35,925 INFO L93 Difference]: Finished difference Result 690 states and 853 transitions. [2022-01-10 18:13:35,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:13:35,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2022-01-10 18:13:35,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:13:35,926 INFO L225 Difference]: With dead ends: 690 [2022-01-10 18:13:35,926 INFO L226 Difference]: Without dead ends: 422 [2022-01-10 18:13:35,927 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 [2022-01-10 18:13:35,932 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 216 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:13:35,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 591 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:13:35,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-01-10 18:13:35,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 287. [2022-01-10 18:13:35,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 284 states have (on average 1.2464788732394365) internal successors, (354), 286 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:35,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 354 transitions. [2022-01-10 18:13:35,951 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 354 transitions. Word has length 29 [2022-01-10 18:13:35,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:13:35,951 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 354 transitions. [2022-01-10 18:13:35,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:35,951 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 354 transitions. [2022-01-10 18:13:35,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-10 18:13:35,955 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:35,955 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] [2022-01-10 18:13:35,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 18:13:35,956 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:13:35,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:35,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1387483046, now seen corresponding path program 1 times [2022-01-10 18:13:35,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:35,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126265364] [2022-01-10 18:13:35,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:35,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:13:36,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:13:36,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:13:36,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126265364] [2022-01-10 18:13:36,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126265364] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:13:36,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:13:36,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:13:36,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685861385] [2022-01-10 18:13:36,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:13:36,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:13:36,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:13:36,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:13:36,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:13:36,022 INFO L87 Difference]: Start difference. First operand 287 states and 354 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:36,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:13:36,172 INFO L93 Difference]: Finished difference Result 1275 states and 1589 transitions. [2022-01-10 18:13:36,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 18:13:36,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2022-01-10 18:13:36,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:13:36,178 INFO L225 Difference]: With dead ends: 1275 [2022-01-10 18:13:36,178 INFO L226 Difference]: Without dead ends: 828 [2022-01-10 18:13:36,179 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 [2022-01-10 18:13:36,180 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 745 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:13:36,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [745 Valid, 979 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:13:36,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2022-01-10 18:13:36,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 400. [2022-01-10 18:13:36,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 397 states have (on average 1.2468513853904282) internal successors, (495), 399 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:36,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 495 transitions. [2022-01-10 18:13:36,217 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 495 transitions. Word has length 29 [2022-01-10 18:13:36,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:13:36,217 INFO L470 AbstractCegarLoop]: Abstraction has 400 states and 495 transitions. [2022-01-10 18:13:36,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:36,217 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 495 transitions. [2022-01-10 18:13:36,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-10 18:13:36,219 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:36,219 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:13:36,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 18:13:36,220 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:13:36,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:36,221 INFO L85 PathProgramCache]: Analyzing trace with hash 417541036, now seen corresponding path program 1 times [2022-01-10 18:13:36,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:36,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776746099] [2022-01-10 18:13:36,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:36,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:13:36,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:13:36,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:13:36,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776746099] [2022-01-10 18:13:36,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776746099] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:13:36,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:13:36,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:13:36,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110358311] [2022-01-10 18:13:36,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:13:36,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:13:36,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:13:36,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:13:36,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:13:36,289 INFO L87 Difference]: Start difference. First operand 400 states and 495 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:36,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:13:36,385 INFO L93 Difference]: Finished difference Result 975 states and 1203 transitions. [2022-01-10 18:13:36,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:13:36,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2022-01-10 18:13:36,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:13:36,387 INFO L225 Difference]: With dead ends: 975 [2022-01-10 18:13:36,387 INFO L226 Difference]: Without dead ends: 514 [2022-01-10 18:13:36,388 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 [2022-01-10 18:13:36,388 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 77 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:13:36,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 365 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:13:36,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-01-10 18:13:36,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2022-01-10 18:13:36,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 511 states have (on average 1.2348336594911937) internal successors, (631), 513 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:36,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 631 transitions. [2022-01-10 18:13:36,422 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 631 transitions. Word has length 38 [2022-01-10 18:13:36,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:13:36,423 INFO L470 AbstractCegarLoop]: Abstraction has 514 states and 631 transitions. [2022-01-10 18:13:36,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:36,424 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 631 transitions. [2022-01-10 18:13:36,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 18:13:36,424 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:36,424 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:13:36,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 18:13:36,425 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:13:36,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:36,425 INFO L85 PathProgramCache]: Analyzing trace with hash -392458714, now seen corresponding path program 1 times [2022-01-10 18:13:36,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:36,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265955485] [2022-01-10 18:13:36,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:36,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 18:13:36,445 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 18:13:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 18:13:36,495 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 18:13:36,495 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 18:13:36,495 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-10 18:13:36,497 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-10 18:13:36,497 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-10 18:13:36,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 18:13:36,499 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:13:36,503 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 18:13:36,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:13:36 BasicIcfg [2022-01-10 18:13:36,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 18:13:36,564 INFO L158 Benchmark]: Toolchain (without parser) took 3110.24ms. Allocated memory was 207.6MB in the beginning and 259.0MB in the end (delta: 51.4MB). Free memory was 156.4MB in the beginning and 118.6MB in the end (delta: 37.8MB). Peak memory consumption was 90.2MB. Max. memory is 8.0GB. [2022-01-10 18:13:36,564 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 207.6MB. Free memory is still 173.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 18:13:36,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.46ms. Allocated memory is still 207.6MB. Free memory was 156.3MB in the beginning and 169.1MB in the end (delta: -12.9MB). Peak memory consumption was 11.8MB. Max. memory is 8.0GB. [2022-01-10 18:13:36,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.69ms. Allocated memory is still 207.6MB. Free memory was 169.1MB in the beginning and 166.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 18:13:36,565 INFO L158 Benchmark]: Boogie Preprocessor took 36.10ms. Allocated memory is still 207.6MB. Free memory was 166.0MB in the beginning and 163.4MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 18:13:36,565 INFO L158 Benchmark]: RCFGBuilder took 403.84ms. Allocated memory is still 207.6MB. Free memory was 163.4MB in the beginning and 140.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-01-10 18:13:36,565 INFO L158 Benchmark]: IcfgTransformer took 108.45ms. Allocated memory is still 207.6MB. Free memory was 140.3MB in the beginning and 131.4MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-01-10 18:13:36,565 INFO L158 Benchmark]: TraceAbstraction took 2101.44ms. Allocated memory was 207.6MB in the beginning and 259.0MB in the end (delta: 51.4MB). Free memory was 130.9MB in the beginning and 118.6MB in the end (delta: 12.3MB). Peak memory consumption was 64.7MB. Max. memory is 8.0GB. [2022-01-10 18:13:36,566 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 207.6MB. Free memory is still 173.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 391.46ms. Allocated memory is still 207.6MB. Free memory was 156.3MB in the beginning and 169.1MB in the end (delta: -12.9MB). Peak memory consumption was 11.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 62.69ms. Allocated memory is still 207.6MB. Free memory was 169.1MB in the beginning and 166.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.10ms. Allocated memory is still 207.6MB. Free memory was 166.0MB in the beginning and 163.4MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 403.84ms. Allocated memory is still 207.6MB. Free memory was 163.4MB in the beginning and 140.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * IcfgTransformer took 108.45ms. Allocated memory is still 207.6MB. Free memory was 140.3MB in the beginning and 131.4MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 2101.44ms. Allocated memory was 207.6MB in the beginning and 259.0MB in the end (delta: 51.4MB). Free memory was 130.9MB in the beginning and 118.6MB in the end (delta: 12.3MB). Peak memory consumption was 64.7MB. 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: 500]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L362] int cleanupTimeShifts = 4; [L674] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L872] int waterLevel = 1; [L873] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L438] int retValue_acc ; [L439] int tmp ; [L443] FCALL select_helpers() [L444] FCALL select_features() [L445] CALL, EXPR valid_product() [L487] int retValue_acc ; [L490] retValue_acc = 1 [L491] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L445] RET, EXPR valid_product() [L445] tmp = valid_product() [L447] COND TRUE \read(tmp) [L449] FCALL setup() [L450] CALL runTest() [L429] CALL test() [L267] int splverifierCounter ; [L268] int tmp ; [L269] int tmp___0 ; [L270] int tmp___1 ; [L271] int tmp___2 ; [L274] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L276] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L278] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L284] tmp = __VERIFIER_nondet_int() [L286] COND TRUE \read(tmp) [L288] CALL waterRise() [L890] COND TRUE waterLevel < 2 [L891] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L288] RET waterRise() [L294] tmp___0 = __VERIFIER_nondet_int() [L296] COND TRUE \read(tmp___0) [L298] CALL changeMethaneLevel() [L902] COND FALSE !(\read(methaneLevelCritical)) [L905] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L298] RET changeMethaneLevel() [L304] tmp___2 = __VERIFIER_nondet_int() [L306] COND TRUE \read(tmp___2) [L308] CALL startSystem() [L258] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L308] RET startSystem() [L323] CALL timeShift() [L69] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L76] COND TRUE \read(systemActive) [L78] CALL processEnvironment() [L124] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L127] COND FALSE !(\read(pumpRunning)) [L142] CALL processEnvironment__wrappee__highWaterSensor() [L98] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L101] COND TRUE ! pumpRunning [L103] CALL, EXPR isHighWaterLevel() [L221] int retValue_acc ; [L222] int tmp ; [L223] int tmp___0 ; [L227] CALL, EXPR isHighWaterSensorDry() [L952] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L955] COND FALSE !(waterLevel < 2) [L959] retValue_acc = 0 [L960] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L227] RET, EXPR isHighWaterSensorDry() [L227] tmp = isHighWaterSensorDry() [L229] COND FALSE !(\read(tmp)) [L232] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L234] retValue_acc = tmp___0 [L235] 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] [L103] RET, EXPR isHighWaterLevel() [L103] tmp = isHighWaterLevel() [L105] COND TRUE \read(tmp) [L107] CALL activatePump() [L152] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L107] RET activatePump() [L142] RET processEnvironment__wrappee__highWaterSensor() [L78] RET processEnvironment() [L84] CALL __utac_acc__Specification1_spec__1() [L337] int tmp ; [L338] int tmp___0 ; [L342] CALL, EXPR isMethaneLevelCritical() [L911] int retValue_acc ; [L914] retValue_acc = methaneLevelCritical [L915] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L342] RET, EXPR isMethaneLevelCritical() [L342] tmp = isMethaneLevelCritical() [L344] COND TRUE \read(tmp) [L346] CALL, EXPR isPumpRunning() [L176] int retValue_acc ; [L179] retValue_acc = pumpRunning [L180] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L346] RET, EXPR isPumpRunning() [L346] tmp___0 = isPumpRunning() [L348] COND TRUE \read(tmp___0) [L350] CALL __automaton_fail() [L500] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 500]: 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: 500]: 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, 164 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2403 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2403 mSDsluCounter, 5091 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3064 mSDsCounter, 123 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 414 IncrementalHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 123 mSolverCounterUnsat, 2027 mSDtfsCounter, 414 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=514occurred in iteration=8, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 1288 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 251 NumberOfCodeBlocks, 251 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 203 ConstructedInterpolants, 0 QuantifiedInterpolants, 630 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! [2022-01-10 18:13:36,583 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...