/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 18:17:02,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 18:17:02,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 18:17:02,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 18:17:02,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 18:17:02,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 18:17:02,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 18:17:02,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 18:17:02,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 18:17:02,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 18:17:02,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 18:17:02,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 18:17:02,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 18:17:02,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 18:17:02,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 18:17:02,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 18:17:02,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 18:17:02,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 18:17:02,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 18:17:02,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 18:17:02,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 18:17:02,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 18:17:02,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 18:17:02,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 18:17:02,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 18:17:02,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 18:17:02,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 18:17:02,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 18:17:02,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 18:17:02,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 18:17:02,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 18:17:02,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 18:17:02,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 18:17:02,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 18:17:02,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 18:17:02,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 18:17:02,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 18:17:02,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 18:17:02,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 18:17:02,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 18:17:02,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 18:17:02,193 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 18:17:02,206 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 18:17:02,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 18:17:02,206 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 18:17:02,206 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 18:17:02,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 18:17:02,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 18:17:02,215 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 18:17:02,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 18:17:02,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 18:17:02,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 18:17:02,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 18:17:02,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 18:17:02,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 18:17:02,216 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 18:17:02,216 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 18:17:02,216 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 18:17:02,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 18:17:02,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 18:17:02,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 18:17:02,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 18:17:02,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 18:17:02,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:17:02,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 18:17:02,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 18:17:02,217 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 18:17:02,217 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 18:17:02,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 18:17:02,217 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 18:17:02,218 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 18:17:02,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 18:17:02,218 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 18:17:02,218 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 18:17:02,219 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 18:17:02,219 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 18:17:02,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 18:17:02,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 18:17:02,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 18:17:02,567 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 18:17:02,567 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 18:17:02,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product37.cil.c [2022-01-10 18:17:02,611 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca8acaa65/1fe1661f16704852bb6b6e0bed492ff9/FLAG66a289363 [2022-01-10 18:17:02,993 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 18:17:02,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product37.cil.c [2022-01-10 18:17:03,000 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca8acaa65/1fe1661f16704852bb6b6e0bed492ff9/FLAG66a289363 [2022-01-10 18:17:03,364 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca8acaa65/1fe1661f16704852bb6b6e0bed492ff9 [2022-01-10 18:17:03,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 18:17:03,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 18:17:03,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 18:17:03,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 18:17:03,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 18:17:03,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:17:03" (1/1) ... [2022-01-10 18:17:03,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255ddb44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:03, skipping insertion in model container [2022-01-10 18:17:03,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:17:03" (1/1) ... [2022-01-10 18:17:03,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 18:17:03,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:17:03,596 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_spec4_product37.cil.c[6698,6711] [2022-01-10 18:17:03,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:17:03,644 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 18:17:03,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:17:03,663 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_spec4_product37.cil.c[6698,6711] [2022-01-10 18:17:03,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:17:03,691 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 18:17:03,716 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_spec4_product37.cil.c[6698,6711] [2022-01-10 18:17:03,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:17:03,782 INFO L208 MainTranslator]: Completed translation [2022-01-10 18:17:03,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:03 WrapperNode [2022-01-10 18:17:03,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 18:17:03,784 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 18:17:03,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 18:17:03,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 18:17:03,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:03" (1/1) ... [2022-01-10 18:17:03,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:03" (1/1) ... [2022-01-10 18:17:03,840 INFO L137 Inliner]: procedures = 55, calls = 153, calls flagged for inlining = 50, calls inlined = 77, statements flattened = 581 [2022-01-10 18:17:03,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 18:17:03,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 18:17:03,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 18:17:03,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 18:17:03,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:03" (1/1) ... [2022-01-10 18:17:03,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:03" (1/1) ... [2022-01-10 18:17:03,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:03" (1/1) ... [2022-01-10 18:17:03,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:03" (1/1) ... [2022-01-10 18:17:03,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:03" (1/1) ... [2022-01-10 18:17:03,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:03" (1/1) ... [2022-01-10 18:17:03,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:03" (1/1) ... [2022-01-10 18:17:03,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 18:17:03,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 18:17:03,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 18:17:03,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 18:17:03,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:03" (1/1) ... [2022-01-10 18:17:03,893 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:17:03,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:17:03,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 18:17:03,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 18:17:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 18:17:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 18:17:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 18:17:03,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 18:17:03,995 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 18:17:03,996 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 18:17:04,422 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 18:17:04,427 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 18:17:04,428 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 18:17:04,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:17:04 BoogieIcfgContainer [2022-01-10 18:17:04,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 18:17:04,430 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 18:17:04,430 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 18:17:04,432 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 18:17:04,435 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:17:04" (1/1) ... [2022-01-10 18:17:04,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:17:04 BasicIcfg [2022-01-10 18:17:04,520 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 18:17:04,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 18:17:04,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 18:17:04,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 18:17:04,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:17:03" (1/4) ... [2022-01-10 18:17:04,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58eecbd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:17:04, skipping insertion in model container [2022-01-10 18:17:04,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:03" (2/4) ... [2022-01-10 18:17:04,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58eecbd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:17:04, skipping insertion in model container [2022-01-10 18:17:04,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:17:04" (3/4) ... [2022-01-10 18:17:04,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58eecbd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:17:04, skipping insertion in model container [2022-01-10 18:17:04,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:17:04" (4/4) ... [2022-01-10 18:17:04,526 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product37.cil.cTransformedIcfg [2022-01-10 18:17:04,529 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 18:17:04,530 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 18:17:04,575 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 18:17:04,579 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 18:17:04,579 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 18:17:04,593 INFO L276 IsEmpty]: Start isEmpty. Operand has 159 states, 155 states have (on average 1.3935483870967742) internal successors, (216), 158 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:04,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 18:17:04,598 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:04,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:04,599 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:04,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:04,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1112661427, now seen corresponding path program 1 times [2022-01-10 18:17:04,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:04,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611154961] [2022-01-10 18:17:04,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:04,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:04,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:17:04,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:04,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611154961] [2022-01-10 18:17:04,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611154961] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:04,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:04,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:17:04,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710131586] [2022-01-10 18:17:04,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:04,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 18:17:04,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:04,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 18:17:04,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:17:04,870 INFO L87 Difference]: Start difference. First operand has 159 states, 155 states have (on average 1.3935483870967742) internal successors, (216), 158 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:04,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:04,899 INFO L93 Difference]: Finished difference Result 308 states and 421 transitions. [2022-01-10 18:17:04,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 18:17:04,901 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-01-10 18:17:04,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:04,907 INFO L225 Difference]: With dead ends: 308 [2022-01-10 18:17:04,907 INFO L226 Difference]: Without dead ends: 149 [2022-01-10 18:17:04,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:17:04,916 INFO L933 BasicCegarLoop]: 206 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, 206 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:04,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:04,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-01-10 18:17:04,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2022-01-10 18:17:04,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 146 states have (on average 1.356164383561644) internal successors, (198), 148 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:04,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 198 transitions. [2022-01-10 18:17:04,954 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 198 transitions. Word has length 17 [2022-01-10 18:17:04,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:04,954 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 198 transitions. [2022-01-10 18:17:04,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:04,955 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 198 transitions. [2022-01-10 18:17:04,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 18:17:04,955 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:04,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:04,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 18:17:04,956 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:04,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:04,957 INFO L85 PathProgramCache]: Analyzing trace with hash -474101339, now seen corresponding path program 1 times [2022-01-10 18:17:04,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:04,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902509311] [2022-01-10 18:17:04,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:04,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:05,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:17:05,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:05,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902509311] [2022-01-10 18:17:05,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902509311] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:05,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:05,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:17:05,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269550252] [2022-01-10 18:17:05,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:05,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:17:05,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:05,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:17:05,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:05,036 INFO L87 Difference]: Start difference. First operand 149 states and 198 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:05,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:05,077 INFO L93 Difference]: Finished difference Result 291 states and 389 transitions. [2022-01-10 18:17:05,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:17:05,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-01-10 18:17:05,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:05,081 INFO L225 Difference]: With dead ends: 291 [2022-01-10 18:17:05,081 INFO L226 Difference]: Without dead ends: 149 [2022-01-10 18:17:05,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:05,085 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 184 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:05,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 192 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:05,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-01-10 18:17:05,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2022-01-10 18:17:05,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 146 states have (on average 1.3356164383561644) internal successors, (195), 148 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:05,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 195 transitions. [2022-01-10 18:17:05,095 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 195 transitions. Word has length 18 [2022-01-10 18:17:05,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:05,099 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 195 transitions. [2022-01-10 18:17:05,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:05,101 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 195 transitions. [2022-01-10 18:17:05,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-10 18:17:05,107 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:05,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:05,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 18:17:05,107 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:05,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:05,108 INFO L85 PathProgramCache]: Analyzing trace with hash 322874732, now seen corresponding path program 1 times [2022-01-10 18:17:05,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:05,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427087141] [2022-01-10 18:17:05,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:05,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:05,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:17:05,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:05,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427087141] [2022-01-10 18:17:05,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427087141] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:05,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:05,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:17:05,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651725627] [2022-01-10 18:17:05,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:05,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:17:05,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:05,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:17:05,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:05,195 INFO L87 Difference]: Start difference. First operand 149 states and 195 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:05,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:05,293 INFO L93 Difference]: Finished difference Result 352 states and 460 transitions. [2022-01-10 18:17:05,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:17:05,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-01-10 18:17:05,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:05,295 INFO L225 Difference]: With dead ends: 352 [2022-01-10 18:17:05,295 INFO L226 Difference]: Without dead ends: 210 [2022-01-10 18:17:05,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:05,297 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 127 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:05,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 302 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:17:05,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-01-10 18:17:05,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 204. [2022-01-10 18:17:05,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 201 states have (on average 1.2935323383084578) internal successors, (260), 203 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:05,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 260 transitions. [2022-01-10 18:17:05,312 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 260 transitions. Word has length 23 [2022-01-10 18:17:05,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:05,312 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 260 transitions. [2022-01-10 18:17:05,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:05,312 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 260 transitions. [2022-01-10 18:17:05,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-10 18:17:05,313 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:05,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:05,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 18:17:05,314 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:05,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:05,314 INFO L85 PathProgramCache]: Analyzing trace with hash -863632279, now seen corresponding path program 1 times [2022-01-10 18:17:05,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:05,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188877389] [2022-01-10 18:17:05,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:05,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:05,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:17:05,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:05,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188877389] [2022-01-10 18:17:05,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188877389] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:05,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:05,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:17:05,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406292608] [2022-01-10 18:17:05,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:05,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:17:05,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:05,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:17:05,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:17:05,423 INFO L87 Difference]: Start difference. First operand 204 states and 260 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:05,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:05,567 INFO L93 Difference]: Finished difference Result 550 states and 688 transitions. [2022-01-10 18:17:05,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 18:17:05,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-01-10 18:17:05,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:05,569 INFO L225 Difference]: With dead ends: 550 [2022-01-10 18:17:05,569 INFO L226 Difference]: Without dead ends: 353 [2022-01-10 18:17:05,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 18:17:05,575 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 350 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:05,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 854 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:17:05,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-01-10 18:17:05,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 222. [2022-01-10 18:17:05,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 219 states have (on average 1.269406392694064) internal successors, (278), 221 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:05,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 278 transitions. [2022-01-10 18:17:05,612 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 278 transitions. Word has length 29 [2022-01-10 18:17:05,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:05,612 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 278 transitions. [2022-01-10 18:17:05,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:05,613 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 278 transitions. [2022-01-10 18:17:05,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-10 18:17:05,614 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:05,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:05,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 18:17:05,614 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:05,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:05,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1427367049, now seen corresponding path program 1 times [2022-01-10 18:17:05,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:05,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050041621] [2022-01-10 18:17:05,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:05,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:05,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:17:05,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:05,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050041621] [2022-01-10 18:17:05,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050041621] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:05,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:05,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:17:05,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225941271] [2022-01-10 18:17:05,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:05,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:17:05,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:05,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:17:05,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:17:05,671 INFO L87 Difference]: Start difference. First operand 222 states and 278 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:05,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:05,892 INFO L93 Difference]: Finished difference Result 1211 states and 1518 transitions. [2022-01-10 18:17:05,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 18:17:05,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-01-10 18:17:05,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:05,896 INFO L225 Difference]: With dead ends: 1211 [2022-01-10 18:17:05,897 INFO L226 Difference]: Without dead ends: 996 [2022-01-10 18:17:05,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:17:05,898 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 800 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:05,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [800 Valid, 1064 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:17:05,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2022-01-10 18:17:05,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 417. [2022-01-10 18:17:05,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 414 states have (on average 1.251207729468599) internal successors, (518), 416 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:05,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 518 transitions. [2022-01-10 18:17:05,937 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 518 transitions. Word has length 29 [2022-01-10 18:17:05,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:05,937 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 518 transitions. [2022-01-10 18:17:05,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:05,938 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 518 transitions. [2022-01-10 18:17:05,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 18:17:05,939 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:05,939 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] [2022-01-10 18:17:05,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 18:17:05,939 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:05,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:05,940 INFO L85 PathProgramCache]: Analyzing trace with hash -291219745, now seen corresponding path program 1 times [2022-01-10 18:17:05,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:05,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339808804] [2022-01-10 18:17:05,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:05,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:06,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:17:06,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:06,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339808804] [2022-01-10 18:17:06,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339808804] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:06,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:06,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:17:06,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945320286] [2022-01-10 18:17:06,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:06,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:17:06,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:06,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:17:06,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:17:06,065 INFO L87 Difference]: Start difference. First operand 417 states and 518 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:06,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:06,278 INFO L93 Difference]: Finished difference Result 1231 states and 1517 transitions. [2022-01-10 18:17:06,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:17:06,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 37 [2022-01-10 18:17:06,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:06,282 INFO L225 Difference]: With dead ends: 1231 [2022-01-10 18:17:06,282 INFO L226 Difference]: Without dead ends: 1225 [2022-01-10 18:17:06,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:17:06,285 INFO L933 BasicCegarLoop]: 419 mSDtfsCounter, 683 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:06,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [683 Valid, 1318 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:17:06,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2022-01-10 18:17:06,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 417. [2022-01-10 18:17:06,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 414 states have (on average 1.2439613526570048) internal successors, (515), 416 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:06,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 515 transitions. [2022-01-10 18:17:06,324 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 515 transitions. Word has length 37 [2022-01-10 18:17:06,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:06,325 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 515 transitions. [2022-01-10 18:17:06,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:06,326 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 515 transitions. [2022-01-10 18:17:06,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 18:17:06,329 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:06,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:06,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 18:17:06,330 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:06,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:06,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1419345216, now seen corresponding path program 1 times [2022-01-10 18:17:06,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:06,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710217553] [2022-01-10 18:17:06,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:06,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:06,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:17:06,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:06,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710217553] [2022-01-10 18:17:06,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710217553] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:06,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:06,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:17:06,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167460402] [2022-01-10 18:17:06,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:06,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:17:06,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:06,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:17:06,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:17:06,375 INFO L87 Difference]: Start difference. First operand 417 states and 515 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:06,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:06,469 INFO L93 Difference]: Finished difference Result 1019 states and 1242 transitions. [2022-01-10 18:17:06,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:17:06,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 37 [2022-01-10 18:17:06,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:06,472 INFO L225 Difference]: With dead ends: 1019 [2022-01-10 18:17:06,472 INFO L226 Difference]: Without dead ends: 609 [2022-01-10 18:17:06,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:17:06,474 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 285 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:06,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 589 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:06,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2022-01-10 18:17:06,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 402. [2022-01-10 18:17:06,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 399 states have (on average 1.2230576441102756) internal successors, (488), 401 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:06,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 488 transitions. [2022-01-10 18:17:06,512 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 488 transitions. Word has length 37 [2022-01-10 18:17:06,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:06,513 INFO L470 AbstractCegarLoop]: Abstraction has 402 states and 488 transitions. [2022-01-10 18:17:06,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:06,513 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 488 transitions. [2022-01-10 18:17:06,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-10 18:17:06,514 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:06,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:06,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 18:17:06,515 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:06,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:06,515 INFO L85 PathProgramCache]: Analyzing trace with hash -282935339, now seen corresponding path program 1 times [2022-01-10 18:17:06,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:06,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744848762] [2022-01-10 18:17:06,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:06,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:06,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:17:06,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:06,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744848762] [2022-01-10 18:17:06,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744848762] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:06,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:06,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:17:06,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218038211] [2022-01-10 18:17:06,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:06,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:17:06,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:06,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:17:06,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:06,599 INFO L87 Difference]: Start difference. First operand 402 states and 488 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:06,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:06,663 INFO L93 Difference]: Finished difference Result 869 states and 1051 transitions. [2022-01-10 18:17:06,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:17:06,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 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 50 [2022-01-10 18:17:06,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:06,665 INFO L225 Difference]: With dead ends: 869 [2022-01-10 18:17:06,665 INFO L226 Difference]: Without dead ends: 433 [2022-01-10 18:17:06,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:06,667 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 70 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:06,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 341 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:06,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-01-10 18:17:06,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2022-01-10 18:17:06,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 430 states have (on average 1.2186046511627906) internal successors, (524), 432 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:06,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 524 transitions. [2022-01-10 18:17:06,695 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 524 transitions. Word has length 50 [2022-01-10 18:17:06,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:06,695 INFO L470 AbstractCegarLoop]: Abstraction has 433 states and 524 transitions. [2022-01-10 18:17:06,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:06,696 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 524 transitions. [2022-01-10 18:17:06,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-10 18:17:06,697 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:06,697 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:06,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 18:17:06,698 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:06,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:06,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1308874449, now seen corresponding path program 1 times [2022-01-10 18:17:06,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:06,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306336631] [2022-01-10 18:17:06,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:06,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:06,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:17:06,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:06,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306336631] [2022-01-10 18:17:06,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306336631] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:06,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:06,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:17:06,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119903306] [2022-01-10 18:17:06,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:06,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:17:06,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:06,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:17:06,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:06,763 INFO L87 Difference]: Start difference. First operand 433 states and 524 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:06,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:06,795 INFO L93 Difference]: Finished difference Result 433 states and 524 transitions. [2022-01-10 18:17:06,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:17:06,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2022-01-10 18:17:06,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:06,796 INFO L225 Difference]: With dead ends: 433 [2022-01-10 18:17:06,796 INFO L226 Difference]: Without dead ends: 199 [2022-01-10 18:17:06,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:06,798 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 43 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:06,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 84 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:06,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-01-10 18:17:06,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2022-01-10 18:17:06,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 198 states have (on average 1.2424242424242424) internal successors, (246), 198 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:06,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 246 transitions. [2022-01-10 18:17:06,815 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 246 transitions. Word has length 57 [2022-01-10 18:17:06,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:06,816 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 246 transitions. [2022-01-10 18:17:06,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:06,816 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 246 transitions. [2022-01-10 18:17:06,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-10 18:17:06,817 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:06,817 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:06,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 18:17:06,817 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:06,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:06,818 INFO L85 PathProgramCache]: Analyzing trace with hash 719066651, now seen corresponding path program 1 times [2022-01-10 18:17:06,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:06,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990193043] [2022-01-10 18:17:06,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:06,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:06,910 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-10 18:17:06,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:06,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990193043] [2022-01-10 18:17:06,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990193043] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 18:17:06,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125281085] [2022-01-10 18:17:06,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:06,911 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:17:06,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:17:06,912 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 18:17:06,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 18:17:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:07,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-10 18:17:07,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 18:17:07,526 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-10 18:17:07,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 18:17:07,714 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-10 18:17:07,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125281085] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 18:17:07,715 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 18:17:07,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-01-10 18:17:07,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257273525] [2022-01-10 18:17:07,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 18:17:07,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-10 18:17:07,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:07,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-10 18:17:07,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-01-10 18:17:07,716 INFO L87 Difference]: Start difference. First operand 199 states and 246 transitions. Second operand has 14 states, 14 states have (on average 9.071428571428571) internal successors, (127), 13 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:08,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:08,430 INFO L93 Difference]: Finished difference Result 1308 states and 1643 transitions. [2022-01-10 18:17:08,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-10 18:17:08,430 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.071428571428571) internal successors, (127), 13 states have internal predecessors, (127), 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 63 [2022-01-10 18:17:08,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:08,434 INFO L225 Difference]: With dead ends: 1308 [2022-01-10 18:17:08,434 INFO L226 Difference]: Without dead ends: 1147 [2022-01-10 18:17:08,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 114 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=273, Invalid=719, Unknown=0, NotChecked=0, Total=992 [2022-01-10 18:17:08,435 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 1433 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1433 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:08,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1433 Valid, 1709 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 18:17:08,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2022-01-10 18:17:08,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 359. [2022-01-10 18:17:08,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 358 states have (on average 1.2597765363128492) internal successors, (451), 358 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:08,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 451 transitions. [2022-01-10 18:17:08,487 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 451 transitions. Word has length 63 [2022-01-10 18:17:08,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:08,487 INFO L470 AbstractCegarLoop]: Abstraction has 359 states and 451 transitions. [2022-01-10 18:17:08,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.071428571428571) internal successors, (127), 13 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:08,487 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 451 transitions. [2022-01-10 18:17:08,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-10 18:17:08,488 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:08,488 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:08,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 18:17:08,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-01-10 18:17:08,706 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:08,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:08,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1883887669, now seen corresponding path program 2 times [2022-01-10 18:17:08,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:08,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916707850] [2022-01-10 18:17:08,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:08,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 18:17:08,734 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 18:17:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 18:17:08,824 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 18:17:08,824 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 18:17:08,825 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-10 18:17:08,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-10 18:17:08,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-10 18:17:08,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 18:17:08,829 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:08,847 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 18:17:09,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:17:09 BasicIcfg [2022-01-10 18:17:09,004 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 18:17:09,004 INFO L158 Benchmark]: Toolchain (without parser) took 5636.86ms. Allocated memory was 204.5MB in the beginning and 374.3MB in the end (delta: 169.9MB). Free memory was 179.0MB in the beginning and 218.7MB in the end (delta: -39.7MB). Peak memory consumption was 130.7MB. Max. memory is 8.0GB. [2022-01-10 18:17:09,005 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 204.5MB. Free memory is still 166.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 18:17:09,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 414.89ms. Allocated memory is still 204.5MB. Free memory was 178.8MB in the beginning and 163.6MB in the end (delta: 15.1MB). Peak memory consumption was 17.1MB. Max. memory is 8.0GB. [2022-01-10 18:17:09,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.75ms. Allocated memory is still 204.5MB. Free memory was 163.6MB in the beginning and 160.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 18:17:09,005 INFO L158 Benchmark]: Boogie Preprocessor took 35.66ms. Allocated memory is still 204.5MB. Free memory was 160.5MB in the beginning and 158.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 18:17:09,005 INFO L158 Benchmark]: RCFGBuilder took 552.10ms. Allocated memory is still 204.5MB. Free memory was 158.0MB in the beginning and 135.8MB in the end (delta: 22.2MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-01-10 18:17:09,005 INFO L158 Benchmark]: IcfgTransformer took 90.31ms. Allocated memory is still 204.5MB. Free memory was 135.3MB in the beginning and 126.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-01-10 18:17:09,006 INFO L158 Benchmark]: TraceAbstraction took 4482.93ms. Allocated memory was 204.5MB in the beginning and 374.3MB in the end (delta: 169.9MB). Free memory was 126.3MB in the beginning and 218.7MB in the end (delta: -92.4MB). Peak memory consumption was 79.0MB. Max. memory is 8.0GB. [2022-01-10 18:17:09,007 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 204.5MB. Free memory is still 166.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 414.89ms. Allocated memory is still 204.5MB. Free memory was 178.8MB in the beginning and 163.6MB in the end (delta: 15.1MB). Peak memory consumption was 17.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.75ms. Allocated memory is still 204.5MB. Free memory was 163.6MB in the beginning and 160.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.66ms. Allocated memory is still 204.5MB. Free memory was 160.5MB in the beginning and 158.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 552.10ms. Allocated memory is still 204.5MB. Free memory was 158.0MB in the beginning and 135.8MB in the end (delta: 22.2MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * IcfgTransformer took 90.31ms. Allocated memory is still 204.5MB. Free memory was 135.3MB in the beginning and 126.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 4482.93ms. Allocated memory was 204.5MB in the beginning and 374.3MB in the end (delta: 169.9MB). Free memory was 126.3MB in the beginning and 218.7MB in the end (delta: -92.4MB). Peak memory consumption was 79.0MB. 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: 444]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L165] int pumpRunning = 0; [L166] int systemActive = 1; [L344] int cleanupTimeShifts = 4; [L450] int waterLevel = 1; [L451] int methaneLevelCritical = 0; [L713] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L417] int retValue_acc ; [L418] int tmp ; [L422] FCALL select_helpers() [L423] FCALL select_features() [L424] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L424] RET, EXPR valid_product() [L424] tmp = valid_product() [L426] COND TRUE \read(tmp) [L428] FCALL setup() [L429] CALL runTest() [L411] CALL test() [L93] int splverifierCounter ; [L94] int tmp ; [L95] int tmp___0 ; [L96] int tmp___1 ; [L97] int tmp___2 ; [L100] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L102] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L104] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L110] tmp = __VERIFIER_nondet_int() [L112] COND TRUE \read(tmp) [L114] CALL waterRise() [L468] COND TRUE waterLevel < 2 [L469] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L114] RET waterRise() [L120] tmp___0 = __VERIFIER_nondet_int() [L122] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L130] tmp___2 = __VERIFIER_nondet_int() [L132] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L145] CALL timeShift() [L173] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L180] COND TRUE \read(systemActive) [L182] CALL processEnvironment() [L228] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L231] COND FALSE !(\read(pumpRunning)) [L246] CALL processEnvironment__wrappee__highWaterSensor() [L202] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L205] COND TRUE ! pumpRunning [L207] CALL, EXPR isHighWaterLevel() [L325] int retValue_acc ; [L326] int tmp ; [L327] int tmp___0 ; [L331] CALL, EXPR isHighWaterSensorDry() [L530] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L533] COND FALSE !(waterLevel < 2) [L537] retValue_acc = 0 [L538] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L331] RET, EXPR isHighWaterSensorDry() [L331] tmp = isHighWaterSensorDry() [L333] COND FALSE !(\read(tmp)) [L336] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L338] retValue_acc = tmp___0 [L339] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L207] RET, EXPR isHighWaterLevel() [L207] tmp = isHighWaterLevel() [L209] COND TRUE \read(tmp) [L211] CALL activatePump() [L256] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L211] RET activatePump() [L246] RET processEnvironment__wrappee__highWaterSensor() [L182] RET processEnvironment() [L188] CALL __utac_acc__Specification4_spec__1() [L911] int tmp ; [L912] int tmp___0 ; [L916] CALL, EXPR getWaterLevel() [L521] int retValue_acc ; [L524] retValue_acc = waterLevel [L525] return (retValue_acc); VAL [\result=-2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L916] RET, EXPR getWaterLevel() [L916] tmp = getWaterLevel() [L918] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L188] RET __utac_acc__Specification4_spec__1() [L145] RET timeShift() [L102] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L104] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L110] tmp = __VERIFIER_nondet_int() [L112] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L120] tmp___0 = __VERIFIER_nondet_int() [L122] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L130] tmp___2 = __VERIFIER_nondet_int() [L132] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L145] CALL timeShift() [L173] COND TRUE \read(pumpRunning) [L175] CALL lowerWaterLevel() [L456] COND TRUE waterLevel > 0 [L457] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L175] RET lowerWaterLevel() [L180] COND TRUE \read(systemActive) [L182] CALL processEnvironment() [L228] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L231] COND TRUE \read(pumpRunning) [L233] CALL, EXPR isMethaneAlarm() [L269] int retValue_acc ; [L273] CALL, EXPR isMethaneLevelCritical() [L489] int retValue_acc ; [L492] retValue_acc = methaneLevelCritical [L493] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L273] RET, EXPR isMethaneLevelCritical() [L273] retValue_acc = isMethaneLevelCritical() [L275] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L233] RET, EXPR isMethaneAlarm() [L233] tmp = isMethaneAlarm() [L235] COND FALSE !(\read(tmp)) [L241] CALL processEnvironment__wrappee__highWaterSensor() [L202] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L205] COND FALSE !(! pumpRunning) [L220] FCALL processEnvironment__wrappee__base() [L241] RET processEnvironment__wrappee__highWaterSensor() [L182] RET processEnvironment() [L188] CALL __utac_acc__Specification4_spec__1() [L911] int tmp ; [L912] int tmp___0 ; [L916] CALL, EXPR getWaterLevel() [L521] int retValue_acc ; [L524] retValue_acc = waterLevel [L525] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L916] RET, EXPR getWaterLevel() [L916] tmp = getWaterLevel() [L918] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L188] RET __utac_acc__Specification4_spec__1() [L145] RET timeShift() [L102] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L104] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L110] tmp = __VERIFIER_nondet_int() [L112] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L120] tmp___0 = __VERIFIER_nondet_int() [L122] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L130] tmp___2 = __VERIFIER_nondet_int() [L132] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L145] CALL timeShift() [L173] COND TRUE \read(pumpRunning) [L175] CALL lowerWaterLevel() [L456] COND TRUE waterLevel > 0 [L457] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L175] RET lowerWaterLevel() [L180] COND TRUE \read(systemActive) [L182] CALL processEnvironment() [L228] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L231] COND TRUE \read(pumpRunning) [L233] CALL, EXPR isMethaneAlarm() [L269] int retValue_acc ; [L273] CALL, EXPR isMethaneLevelCritical() [L489] int retValue_acc ; [L492] retValue_acc = methaneLevelCritical [L493] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L273] RET, EXPR isMethaneLevelCritical() [L273] retValue_acc = isMethaneLevelCritical() [L275] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L233] RET, EXPR isMethaneAlarm() [L233] tmp = isMethaneAlarm() [L235] COND FALSE !(\read(tmp)) [L241] CALL processEnvironment__wrappee__highWaterSensor() [L202] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L205] COND FALSE !(! pumpRunning) [L220] FCALL processEnvironment__wrappee__base() [L241] RET processEnvironment__wrappee__highWaterSensor() [L182] RET processEnvironment() [L188] CALL __utac_acc__Specification4_spec__1() [L911] int tmp ; [L912] int tmp___0 ; [L916] CALL, EXPR getWaterLevel() [L521] int retValue_acc ; [L524] retValue_acc = waterLevel [L525] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L916] RET, EXPR getWaterLevel() [L916] tmp = getWaterLevel() [L918] COND TRUE tmp == 0 [L920] CALL, EXPR isPumpRunning() [L280] int retValue_acc ; [L283] retValue_acc = pumpRunning [L284] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L920] RET, EXPR isPumpRunning() [L920] tmp___0 = isPumpRunning() [L922] COND TRUE \read(tmp___0) [L924] CALL __automaton_fail() [L444] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - UnprovableResult [Line: 444]: 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: 444]: 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, 159 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3975 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3975 mSDsluCounter, 6659 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4399 mSDsCounter, 209 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 706 IncrementalHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 209 mSolverCounterUnsat, 2260 mSDtfsCounter, 706 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 191 GetRequests, 131 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=433occurred in iteration=8, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 2519 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 512 NumberOfCodeBlocks, 512 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 474 ConstructedInterpolants, 0 QuantifiedInterpolants, 2938 SizeOfPredicates, 6 NumberOfNonLiveVariables, 551 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 20/50 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-10 18:17:09,037 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...