/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_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 00:03:25,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 00:03:25,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 00:03:25,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 00:03:25,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 00:03:25,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 00:03:25,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 00:03:25,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 00:03:25,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 00:03:25,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 00:03:25,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 00:03:25,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 00:03:25,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 00:03:25,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 00:03:25,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 00:03:25,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 00:03:25,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 00:03:25,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 00:03:25,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 00:03:25,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 00:03:25,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 00:03:25,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 00:03:25,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 00:03:25,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 00:03:25,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 00:03:25,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 00:03:25,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 00:03:25,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 00:03:25,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 00:03:25,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 00:03:25,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 00:03:25,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 00:03:25,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 00:03:25,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 00:03:25,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 00:03:25,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 00:03:25,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 00:03:25,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 00:03:25,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 00:03:25,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 00:03:25,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 00:03:25,859 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-11 00:03:25,883 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 00:03:25,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 00:03:25,883 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 00:03:25,883 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 00:03:25,884 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 00:03:25,884 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 00:03:25,884 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 00:03:25,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 00:03:25,885 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 00:03:25,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 00:03:25,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 00:03:25,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 00:03:25,886 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 00:03:25,886 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 00:03:25,886 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 00:03:25,886 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 00:03:25,886 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 00:03:25,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 00:03:25,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 00:03:25,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 00:03:25,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 00:03:25,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:03:25,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 00:03:25,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 00:03:25,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 00:03:25,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 00:03:25,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 00:03:25,888 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 00:03:25,888 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 00:03:25,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 00:03:25,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 00:03:25,888 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 00:03:25,889 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 00:03:25,889 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 00:03:26,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 00:03:26,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 00:03:26,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 00:03:26,105 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 00:03:26,106 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 00:03:26,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c [2022-01-11 00:03:26,155 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62eaff48f/536df01387b445d3820b1291364f23d6/FLAGf8e50f053 [2022-01-11 00:03:26,572 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 00:03:26,572 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c [2022-01-11 00:03:26,585 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62eaff48f/536df01387b445d3820b1291364f23d6/FLAGf8e50f053 [2022-01-11 00:03:26,597 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62eaff48f/536df01387b445d3820b1291364f23d6 [2022-01-11 00:03:26,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 00:03:26,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 00:03:26,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 00:03:26,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 00:03:26,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 00:03:26,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:03:26" (1/1) ... [2022-01-11 00:03:26,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b7344af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:26, skipping insertion in model container [2022-01-11 00:03:26,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:03:26" (1/1) ... [2022-01-11 00:03:26,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 00:03:26,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 00:03:26,881 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_product52.cil.c[6162,6175] [2022-01-11 00:03:26,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:03:26,969 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 00:03:26,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 00:03:27,004 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_product52.cil.c[6162,6175] [2022-01-11 00:03:27,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:03:27,026 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 00:03:27,057 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_product52.cil.c[6162,6175] [2022-01-11 00:03:27,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:03:27,086 INFO L208 MainTranslator]: Completed translation [2022-01-11 00:03:27,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:27 WrapperNode [2022-01-11 00:03:27,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 00:03:27,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 00:03:27,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 00:03:27,088 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 00:03:27,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:27" (1/1) ... [2022-01-11 00:03:27,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:27" (1/1) ... [2022-01-11 00:03:27,143 INFO L137 Inliner]: procedures = 59, calls = 157, calls flagged for inlining = 54, calls inlined = 80, statements flattened = 609 [2022-01-11 00:03:27,144 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 00:03:27,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 00:03:27,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 00:03:27,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 00:03:27,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:27" (1/1) ... [2022-01-11 00:03:27,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:27" (1/1) ... [2022-01-11 00:03:27,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:27" (1/1) ... [2022-01-11 00:03:27,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:27" (1/1) ... [2022-01-11 00:03:27,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:27" (1/1) ... [2022-01-11 00:03:27,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:27" (1/1) ... [2022-01-11 00:03:27,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:27" (1/1) ... [2022-01-11 00:03:27,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 00:03:27,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 00:03:27,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 00:03:27,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 00:03:27,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:27" (1/1) ... [2022-01-11 00:03:27,190 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:03:27,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 00:03:27,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 00:03:27,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 00:03:27,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 00:03:27,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 00:03:27,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 00:03:27,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 00:03:27,318 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 00:03:27,320 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 00:03:27,724 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 00:03:27,731 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 00:03:27,731 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-11 00:03:27,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:03:27 BoogieIcfgContainer [2022-01-11 00:03:27,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 00:03:27,734 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 00:03:27,734 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 00:03:27,748 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 00:03:27,750 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:03:27" (1/1) ... [2022-01-11 00:03:27,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:03:27 BasicIcfg [2022-01-11 00:03:27,893 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 00:03:27,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 00:03:27,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 00:03:27,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 00:03:27,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 12:03:26" (1/4) ... [2022-01-11 00:03:27,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14cb853e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:03:27, skipping insertion in model container [2022-01-11 00:03:27,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:27" (2/4) ... [2022-01-11 00:03:27,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14cb853e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:03:27, skipping insertion in model container [2022-01-11 00:03:27,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:03:27" (3/4) ... [2022-01-11 00:03:27,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14cb853e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 12:03:27, skipping insertion in model container [2022-01-11 00:03:27,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:03:27" (4/4) ... [2022-01-11 00:03:27,902 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product52.cil.cTransformedIcfg [2022-01-11 00:03:27,906 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 00:03:27,906 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 00:03:27,942 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 00:03:27,947 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 00:03:27,947 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 00:03:27,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 166 states have (on average 1.391566265060241) internal successors, (231), 169 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:27,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-11 00:03:27,969 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:27,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:03:27,970 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:27,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:27,977 INFO L85 PathProgramCache]: Analyzing trace with hash -2021642253, now seen corresponding path program 1 times [2022-01-11 00:03:27,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:27,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558690593] [2022-01-11 00:03:27,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:27,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:28,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:03:28,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:28,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558690593] [2022-01-11 00:03:28,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558690593] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:28,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:28,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:03:28,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346043714] [2022-01-11 00:03:28,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:28,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 00:03:28,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:28,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 00:03:28,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 00:03:28,253 INFO L87 Difference]: Start difference. First operand has 170 states, 166 states have (on average 1.391566265060241) internal successors, (231), 169 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:28,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:28,307 INFO L93 Difference]: Finished difference Result 330 states and 451 transitions. [2022-01-11 00:03:28,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 00:03:28,309 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-01-11 00:03:28,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:28,317 INFO L225 Difference]: With dead ends: 330 [2022-01-11 00:03:28,317 INFO L226 Difference]: Without dead ends: 160 [2022-01-11 00:03:28,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 00:03:28,324 INFO L933 BasicCegarLoop]: 221 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, 221 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:28,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:03:28,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-01-11 00:03:28,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-01-11 00:03:28,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 157 states have (on average 1.356687898089172) internal successors, (213), 159 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:28,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 213 transitions. [2022-01-11 00:03:28,392 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 213 transitions. Word has length 17 [2022-01-11 00:03:28,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:28,392 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 213 transitions. [2022-01-11 00:03:28,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:28,393 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 213 transitions. [2022-01-11 00:03:28,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-11 00:03:28,393 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:28,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:03:28,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 00:03:28,394 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:28,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:28,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1145840643, now seen corresponding path program 1 times [2022-01-11 00:03:28,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:28,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126099157] [2022-01-11 00:03:28,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:28,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:28,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:03:28,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:28,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126099157] [2022-01-11 00:03:28,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126099157] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:28,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:28,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:03:28,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712520855] [2022-01-11 00:03:28,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:28,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:03:28,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:28,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:03:28,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:28,462 INFO L87 Difference]: Start difference. First operand 160 states and 213 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:28,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:28,506 INFO L93 Difference]: Finished difference Result 374 states and 500 transitions. [2022-01-11 00:03:28,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:03:28,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-01-11 00:03:28,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:28,508 INFO L225 Difference]: With dead ends: 374 [2022-01-11 00:03:28,508 INFO L226 Difference]: Without dead ends: 221 [2022-01-11 00:03:28,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:28,509 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 196 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 294 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 [2022-01-11 00:03:28,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 294 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:03:28,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-01-11 00:03:28,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 212. [2022-01-11 00:03:28,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 209 states have (on average 1.3588516746411483) internal successors, (284), 211 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:28,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 284 transitions. [2022-01-11 00:03:28,528 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 284 transitions. Word has length 18 [2022-01-11 00:03:28,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:28,530 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 284 transitions. [2022-01-11 00:03:28,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:28,530 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 284 transitions. [2022-01-11 00:03:28,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-11 00:03:28,531 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:28,531 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] [2022-01-11 00:03:28,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 00:03:28,532 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:28,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:28,532 INFO L85 PathProgramCache]: Analyzing trace with hash 386806635, now seen corresponding path program 1 times [2022-01-11 00:03:28,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:28,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868905901] [2022-01-11 00:03:28,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:28,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:28,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:03:28,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:28,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868905901] [2022-01-11 00:03:28,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868905901] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:28,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:28,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:03:28,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793882358] [2022-01-11 00:03:28,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:28,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:03:28,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:28,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:03:28,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:28,611 INFO L87 Difference]: Start difference. First operand 212 states and 284 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) [2022-01-11 00:03:28,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:28,699 INFO L93 Difference]: Finished difference Result 474 states and 632 transitions. [2022-01-11 00:03:28,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:03:28,700 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 [2022-01-11 00:03:28,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:28,701 INFO L225 Difference]: With dead ends: 474 [2022-01-11 00:03:28,701 INFO L226 Difference]: Without dead ends: 269 [2022-01-11 00:03:28,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:28,703 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 135 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 319 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 [2022-01-11 00:03:28,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 319 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:28,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-01-11 00:03:28,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 263. [2022-01-11 00:03:28,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 260 states have (on average 1.3038461538461539) internal successors, (339), 262 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:28,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 339 transitions. [2022-01-11 00:03:28,730 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 339 transitions. Word has length 23 [2022-01-11 00:03:28,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:28,730 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 339 transitions. [2022-01-11 00:03:28,730 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) [2022-01-11 00:03:28,731 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 339 transitions. [2022-01-11 00:03:28,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-11 00:03:28,735 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:28,735 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:03:28,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 00:03:28,735 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:28,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:28,736 INFO L85 PathProgramCache]: Analyzing trace with hash 240335975, now seen corresponding path program 1 times [2022-01-11 00:03:28,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:28,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681521533] [2022-01-11 00:03:28,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:28,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:28,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:03:28,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:28,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681521533] [2022-01-11 00:03:28,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681521533] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:28,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:28,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:03:28,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755001262] [2022-01-11 00:03:28,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:28,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:03:28,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:28,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:03:28,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:03:28,833 INFO L87 Difference]: Start difference. First operand 263 states and 339 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:29,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:29,004 INFO L93 Difference]: Finished difference Result 1188 states and 1539 transitions. [2022-01-11 00:03:29,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 00:03:29,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-01-11 00:03:29,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:29,007 INFO L225 Difference]: With dead ends: 1188 [2022-01-11 00:03:29,008 INFO L226 Difference]: Without dead ends: 786 [2022-01-11 00:03:29,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 00:03:29,022 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 820 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:29,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [820 Valid, 1082 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:29,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2022-01-11 00:03:29,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 368. [2022-01-11 00:03:29,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 365 states have (on average 1.295890410958904) internal successors, (473), 367 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:29,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 473 transitions. [2022-01-11 00:03:29,055 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 473 transitions. Word has length 28 [2022-01-11 00:03:29,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:29,056 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 473 transitions. [2022-01-11 00:03:29,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:29,057 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 473 transitions. [2022-01-11 00:03:29,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-11 00:03:29,059 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:29,059 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:03:29,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 00:03:29,060 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:29,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:29,060 INFO L85 PathProgramCache]: Analyzing trace with hash 2054134785, now seen corresponding path program 1 times [2022-01-11 00:03:29,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:29,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995815148] [2022-01-11 00:03:29,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:29,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:29,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:03:29,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:29,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995815148] [2022-01-11 00:03:29,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995815148] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:29,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:29,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:03:29,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4079334] [2022-01-11 00:03:29,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:29,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:03:29,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:29,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:03:29,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:03:29,135 INFO L87 Difference]: Start difference. First operand 368 states and 473 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:29,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:29,375 INFO L93 Difference]: Finished difference Result 1071 states and 1367 transitions. [2022-01-11 00:03:29,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 00:03:29,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-01-11 00:03:29,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:29,380 INFO L225 Difference]: With dead ends: 1071 [2022-01-11 00:03:29,380 INFO L226 Difference]: Without dead ends: 1065 [2022-01-11 00:03:29,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 00:03:29,383 INFO L933 BasicCegarLoop]: 496 mSDtfsCounter, 704 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:29,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [704 Valid, 1514 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:29,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2022-01-11 00:03:29,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 368. [2022-01-11 00:03:29,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 365 states have (on average 1.2794520547945205) internal successors, (467), 367 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:29,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 467 transitions. [2022-01-11 00:03:29,412 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 467 transitions. Word has length 30 [2022-01-11 00:03:29,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:29,416 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 467 transitions. [2022-01-11 00:03:29,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:29,416 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 467 transitions. [2022-01-11 00:03:29,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-11 00:03:29,418 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:29,419 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] [2022-01-11 00:03:29,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 00:03:29,419 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:29,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:29,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1509646734, now seen corresponding path program 1 times [2022-01-11 00:03:29,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:29,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679290521] [2022-01-11 00:03:29,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:29,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:29,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:03:29,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:29,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679290521] [2022-01-11 00:03:29,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679290521] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:29,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:29,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:03:29,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241321856] [2022-01-11 00:03:29,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:29,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 00:03:29,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:29,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 00:03:29,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 00:03:29,497 INFO L87 Difference]: Start difference. First operand 368 states and 467 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 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) [2022-01-11 00:03:29,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:29,622 INFO L93 Difference]: Finished difference Result 1419 states and 1791 transitions. [2022-01-11 00:03:29,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 00:03:29,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 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 [2022-01-11 00:03:29,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:29,626 INFO L225 Difference]: With dead ends: 1419 [2022-01-11 00:03:29,626 INFO L226 Difference]: Without dead ends: 1058 [2022-01-11 00:03:29,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:03:29,629 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 454 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:29,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [454 Valid, 894 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:29,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2022-01-11 00:03:29,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 384. [2022-01-11 00:03:29,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 381 states have (on average 1.2677165354330708) internal successors, (483), 383 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:29,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 483 transitions. [2022-01-11 00:03:29,665 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 483 transitions. Word has length 38 [2022-01-11 00:03:29,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:29,665 INFO L470 AbstractCegarLoop]: Abstraction has 384 states and 483 transitions. [2022-01-11 00:03:29,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 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) [2022-01-11 00:03:29,666 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 483 transitions. [2022-01-11 00:03:29,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-11 00:03:29,666 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:29,666 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] [2022-01-11 00:03:29,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 00:03:29,666 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:29,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:29,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1216243727, now seen corresponding path program 1 times [2022-01-11 00:03:29,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:29,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26611131] [2022-01-11 00:03:29,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:29,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:29,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:03:29,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:29,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26611131] [2022-01-11 00:03:29,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26611131] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:29,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:29,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:03:29,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722246413] [2022-01-11 00:03:29,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:29,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:03:29,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:29,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:03:29,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:29,756 INFO L87 Difference]: Start difference. First operand 384 states and 483 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) [2022-01-11 00:03:29,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:29,866 INFO L93 Difference]: Finished difference Result 1116 states and 1413 transitions. [2022-01-11 00:03:29,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:03:29,866 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 [2022-01-11 00:03:29,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:29,869 INFO L225 Difference]: With dead ends: 1116 [2022-01-11 00:03:29,869 INFO L226 Difference]: Without dead ends: 739 [2022-01-11 00:03:29,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:29,870 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 172 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:29,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 368 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:03:29,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2022-01-11 00:03:29,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 733. [2022-01-11 00:03:29,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 730 states have (on average 1.2602739726027397) internal successors, (920), 732 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:29,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 920 transitions. [2022-01-11 00:03:29,926 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 920 transitions. Word has length 38 [2022-01-11 00:03:29,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:29,927 INFO L470 AbstractCegarLoop]: Abstraction has 733 states and 920 transitions. [2022-01-11 00:03:29,927 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) [2022-01-11 00:03:29,927 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 920 transitions. [2022-01-11 00:03:29,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-11 00:03:29,928 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:29,928 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] [2022-01-11 00:03:29,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 00:03:29,928 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:29,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:29,929 INFO L85 PathProgramCache]: Analyzing trace with hash 2094925, now seen corresponding path program 1 times [2022-01-11 00:03:29,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:29,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112819071] [2022-01-11 00:03:29,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:29,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:29,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:03:29,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:29,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112819071] [2022-01-11 00:03:29,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112819071] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:29,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:29,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 00:03:29,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020537298] [2022-01-11 00:03:29,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:29,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:03:29,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:29,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:03:29,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:03:29,968 INFO L87 Difference]: Start difference. First operand 733 states and 920 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 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) [2022-01-11 00:03:30,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:30,170 INFO L93 Difference]: Finished difference Result 2139 states and 2657 transitions. [2022-01-11 00:03:30,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 00:03:30,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 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 [2022-01-11 00:03:30,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:30,174 INFO L225 Difference]: With dead ends: 2139 [2022-01-11 00:03:30,174 INFO L226 Difference]: Without dead ends: 1413 [2022-01-11 00:03:30,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 00:03:30,176 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 353 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:30,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 958 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:30,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2022-01-11 00:03:30,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 781. [2022-01-11 00:03:30,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 778 states have (on average 1.244215938303342) internal successors, (968), 780 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:30,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 968 transitions. [2022-01-11 00:03:30,243 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 968 transitions. Word has length 38 [2022-01-11 00:03:30,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:30,243 INFO L470 AbstractCegarLoop]: Abstraction has 781 states and 968 transitions. [2022-01-11 00:03:30,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 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) [2022-01-11 00:03:30,244 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 968 transitions. [2022-01-11 00:03:30,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-11 00:03:30,244 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:30,244 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] [2022-01-11 00:03:30,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 00:03:30,245 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:30,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:30,245 INFO L85 PathProgramCache]: Analyzing trace with hash -291308082, now seen corresponding path program 1 times [2022-01-11 00:03:30,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:30,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467152273] [2022-01-11 00:03:30,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:30,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:30,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:03:30,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:30,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467152273] [2022-01-11 00:03:30,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467152273] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:30,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:30,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:03:30,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901428807] [2022-01-11 00:03:30,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:30,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 00:03:30,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:30,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 00:03:30,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 00:03:30,286 INFO L87 Difference]: Start difference. First operand 781 states and 968 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 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) [2022-01-11 00:03:30,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:30,413 INFO L93 Difference]: Finished difference Result 1636 states and 2013 transitions. [2022-01-11 00:03:30,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 00:03:30,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 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 [2022-01-11 00:03:30,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:30,417 INFO L225 Difference]: With dead ends: 1636 [2022-01-11 00:03:30,417 INFO L226 Difference]: Without dead ends: 767 [2022-01-11 00:03:30,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:03:30,421 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 216 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:30,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 632 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:03:30,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2022-01-11 00:03:30,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 522. [2022-01-11 00:03:30,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 519 states have (on average 1.2235067437379576) internal successors, (635), 521 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:30,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 635 transitions. [2022-01-11 00:03:30,507 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 635 transitions. Word has length 38 [2022-01-11 00:03:30,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:30,508 INFO L470 AbstractCegarLoop]: Abstraction has 522 states and 635 transitions. [2022-01-11 00:03:30,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 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) [2022-01-11 00:03:30,508 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 635 transitions. [2022-01-11 00:03:30,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-11 00:03:30,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:30,509 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] [2022-01-11 00:03:30,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 00:03:30,509 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:30,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:30,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1161833175, now seen corresponding path program 1 times [2022-01-11 00:03:30,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:30,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389217325] [2022-01-11 00:03:30,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:30,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 00:03:30,535 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-11 00:03:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 00:03:30,579 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-11 00:03:30,579 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-11 00:03:30,580 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-11 00:03:30,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-11 00:03:30,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-11 00:03:30,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 00:03:30,584 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:03:30,586 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 00:03:30,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 12:03:30 BasicIcfg [2022-01-11 00:03:30,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 00:03:30,658 INFO L158 Benchmark]: Toolchain (without parser) took 4057.47ms. Allocated memory was 197.1MB in the beginning and 314.6MB in the end (delta: 117.4MB). Free memory was 140.2MB in the beginning and 224.7MB in the end (delta: -84.4MB). Peak memory consumption was 34.3MB. Max. memory is 8.0GB. [2022-01-11 00:03:30,658 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 197.1MB. Free memory is still 157.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 00:03:30,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.91ms. Allocated memory was 197.1MB in the beginning and 248.5MB in the end (delta: 51.4MB). Free memory was 140.0MB in the beginning and 204.5MB in the end (delta: -64.5MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. [2022-01-11 00:03:30,658 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.07ms. Allocated memory is still 248.5MB. Free memory was 204.5MB in the beginning and 200.9MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-11 00:03:30,659 INFO L158 Benchmark]: Boogie Preprocessor took 32.53ms. Allocated memory is still 248.5MB. Free memory was 200.9MB in the beginning and 198.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-11 00:03:30,659 INFO L158 Benchmark]: RCFGBuilder took 550.54ms. Allocated memory is still 248.5MB. Free memory was 198.3MB in the beginning and 175.2MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-01-11 00:03:30,659 INFO L158 Benchmark]: IcfgTransformer took 159.15ms. Allocated memory is still 248.5MB. Free memory was 175.2MB in the beginning and 165.7MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-11 00:03:30,659 INFO L158 Benchmark]: TraceAbstraction took 2762.95ms. Allocated memory was 248.5MB in the beginning and 314.6MB in the end (delta: 66.1MB). Free memory was 165.7MB in the beginning and 224.7MB in the end (delta: -58.9MB). Peak memory consumption was 8.2MB. Max. memory is 8.0GB. [2022-01-11 00:03:30,660 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 197.1MB. Free memory is still 157.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 484.91ms. Allocated memory was 197.1MB in the beginning and 248.5MB in the end (delta: 51.4MB). Free memory was 140.0MB in the beginning and 204.5MB in the end (delta: -64.5MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.07ms. Allocated memory is still 248.5MB. Free memory was 204.5MB in the beginning and 200.9MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.53ms. Allocated memory is still 248.5MB. Free memory was 200.9MB in the beginning and 198.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 550.54ms. Allocated memory is still 248.5MB. Free memory was 198.3MB in the beginning and 175.2MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * IcfgTransformer took 159.15ms. Allocated memory is still 248.5MB. Free memory was 175.2MB in the beginning and 165.7MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 2762.95ms. Allocated memory was 248.5MB in the beginning and 314.6MB in the end (delta: 66.1MB). Free memory was 165.7MB in the beginning and 224.7MB in the end (delta: -58.9MB). Peak memory consumption was 8.2MB. 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: 393]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L168] int pumpRunning = 0; [L169] int systemActive = 1; [L468] int cleanupTimeShifts = 4; [L762] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L544] int retValue_acc ; [L545] int tmp ; [L549] FCALL select_helpers() [L550] FCALL select_features() [L551] CALL, EXPR valid_product() [L985] int retValue_acc ; [L988] retValue_acc = 1 [L989] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L551] RET, EXPR valid_product() [L551] tmp = valid_product() [L553] COND TRUE \read(tmp) [L555] FCALL setup() [L556] CALL runTest() [L535] CALL test() [L400] int splverifierCounter ; [L401] int tmp ; [L402] int tmp___0 ; [L403] int tmp___1 ; [L404] int tmp___2 ; [L407] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L409] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L411] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L417] tmp = __VERIFIER_nondet_int() [L419] COND TRUE \read(tmp) [L421] CALL waterRise() [L76] COND TRUE waterLevel < 2 [L77] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L421] RET waterRise() [L427] tmp___0 = __VERIFIER_nondet_int() [L429] COND TRUE \read(tmp___0) [L431] CALL changeMethaneLevel() [L88] COND FALSE !(\read(methaneLevelCritical)) [L91] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L431] RET changeMethaneLevel() [L437] tmp___2 = __VERIFIER_nondet_int() [L439] COND TRUE \read(tmp___2) [L441] CALL startSystem() [L384] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L441] RET startSystem() [L456] CALL timeShift() [L176] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L183] COND TRUE \read(systemActive) [L185] CALL processEnvironment() [L231] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L234] COND FALSE !(\read(pumpRunning)) [L249] CALL processEnvironment__wrappee__highWaterSensor() [L205] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L208] COND TRUE ! pumpRunning [L210] CALL, EXPR isHighWaterLevel() [L328] int retValue_acc ; [L329] int tmp ; [L330] int tmp___0 ; [L334] CALL, EXPR isHighWaterSensorDry() [L138] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L141] COND FALSE !(waterLevel < 2) [L145] retValue_acc = 0 [L146] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L334] RET, EXPR isHighWaterSensorDry() [L334] tmp = isHighWaterSensorDry() [L336] COND FALSE !(\read(tmp)) [L339] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L341] retValue_acc = tmp___0 [L342] 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] [L210] RET, EXPR isHighWaterLevel() [L210] tmp = isHighWaterLevel() [L212] COND TRUE \read(tmp) [L214] CALL activatePump() [L259] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L214] RET activatePump() [L249] RET processEnvironment__wrappee__highWaterSensor() [L185] RET processEnvironment() [L191] CALL __utac_acc__Specification1_spec__1() [L568] int tmp ; [L569] int tmp___0 ; [L573] CALL, EXPR isMethaneLevelCritical() [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L573] RET, EXPR isMethaneLevelCritical() [L573] tmp = isMethaneLevelCritical() [L575] COND TRUE \read(tmp) [L577] CALL, EXPR isPumpRunning() [L283] int retValue_acc ; [L286] retValue_acc = pumpRunning [L287] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L577] RET, EXPR isPumpRunning() [L577] tmp___0 = isPumpRunning() [L579] COND TRUE \read(tmp___0) [L581] CALL __automaton_fail() [L393] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 393]: 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: 393]: 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, 170 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3050 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3050 mSDsluCounter, 6282 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3782 mSDsCounter, 139 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 468 IncrementalHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 139 mSolverCounterUnsat, 2500 mSDtfsCounter, 468 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=781occurred in iteration=8, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 2687 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 308 NumberOfCodeBlocks, 308 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 259 ConstructedInterpolants, 0 QuantifiedInterpolants, 702 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-11 00:03:30,686 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...