/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:23:29,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:23:29,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:23:29,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:23:29,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:23:29,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:23:29,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:23:29,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:23:29,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:23:29,316 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:23:29,317 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:23:29,318 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:23:29,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:23:29,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:23:29,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:23:29,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:23:29,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:23:29,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:23:29,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:23:29,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:23:29,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:23:29,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:23:29,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:23:29,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:23:29,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:23:29,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:23:29,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:23:29,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:23:29,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:23:29,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:23:29,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:23:29,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:23:29,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:23:29,346 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:23:29,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:23:29,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:23:29,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:23:29,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:23:29,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:23:29,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:23:29,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:23:29,350 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:23:29,375 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:23:29,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:23:29,376 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:23:29,376 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:23:29,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:23:29,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:23:29,377 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:23:29,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:23:29,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:23:29,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:23:29,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:23:29,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:23:29,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:23:29,378 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:23:29,379 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:23:29,379 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:23:29,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:23:29,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:23:29,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:23:29,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:23:29,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:23:29,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:23:29,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:23:29,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:23:29,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:23:29,380 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:23:29,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:23:29,381 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:23:29,381 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:23:29,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:23:29,381 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:23:29,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:23:29,382 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:23:29,382 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:23:29,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:23:29,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:23:29,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:23:29,624 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:23:29,624 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:23:29,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c [2022-01-10 12:23:29,679 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60fae4b54/cf16dda87e9b4c2cb0159b514385e769/FLAGfb3378bfd [2022-01-10 12:23:30,062 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:23:30,063 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c [2022-01-10 12:23:30,074 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60fae4b54/cf16dda87e9b4c2cb0159b514385e769/FLAGfb3378bfd [2022-01-10 12:23:30,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60fae4b54/cf16dda87e9b4c2cb0159b514385e769 [2022-01-10 12:23:30,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:23:30,093 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:23:30,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:23:30,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:23:30,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:23:30,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:23:30" (1/1) ... [2022-01-10 12:23:30,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@750e2e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:30, skipping insertion in model container [2022-01-10 12:23:30,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:23:30" (1/1) ... [2022-01-10 12:23:30,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:23:30,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:23:30,432 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c[16839,16852] [2022-01-10 12:23:30,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:23:30,459 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:23:30,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:23:30,521 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c[16839,16852] [2022-01-10 12:23:30,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:23:30,529 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:23:30,580 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c[16839,16852] [2022-01-10 12:23:30,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:23:30,601 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:23:30,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:30 WrapperNode [2022-01-10 12:23:30,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:23:30,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:23:30,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:23:30,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:23:30,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:30" (1/1) ... [2022-01-10 12:23:30,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:30" (1/1) ... [2022-01-10 12:23:30,654 INFO L137 Inliner]: procedures = 56, calls = 154, calls flagged for inlining = 51, calls inlined = 78, statements flattened = 584 [2022-01-10 12:23:30,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:23:30,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:23:30,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:23:30,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:23:30,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:30" (1/1) ... [2022-01-10 12:23:30,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:30" (1/1) ... [2022-01-10 12:23:30,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:30" (1/1) ... [2022-01-10 12:23:30,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:30" (1/1) ... [2022-01-10 12:23:30,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:30" (1/1) ... [2022-01-10 12:23:30,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:30" (1/1) ... [2022-01-10 12:23:30,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:30" (1/1) ... [2022-01-10 12:23:30,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:23:30,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:23:30,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:23:30,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:23:30,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:30" (1/1) ... [2022-01-10 12:23:30,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:23:30,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:23:30,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 12:23:30,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 12:23:30,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:23:30,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:23:30,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:23:30,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:23:30,851 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:23:30,852 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:23:31,203 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:23:31,208 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:23:31,208 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 12:23:31,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:23:31 BoogieIcfgContainer [2022-01-10 12:23:31,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:23:31,210 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:23:31,210 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:23:31,220 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:23:31,222 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:23:31" (1/1) ... [2022-01-10 12:23:31,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:23:31 BasicIcfg [2022-01-10 12:23:31,336 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:23:31,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:23:31,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:23:31,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:23:31,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:23:30" (1/4) ... [2022-01-10 12:23:31,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43525646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:23:31, skipping insertion in model container [2022-01-10 12:23:31,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:30" (2/4) ... [2022-01-10 12:23:31,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43525646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:23:31, skipping insertion in model container [2022-01-10 12:23:31,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:23:31" (3/4) ... [2022-01-10 12:23:31,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43525646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:23:31, skipping insertion in model container [2022-01-10 12:23:31,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:23:31" (4/4) ... [2022-01-10 12:23:31,341 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product38.cil.cTransformedIcfg [2022-01-10 12:23:31,344 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:23:31,344 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 12:23:31,389 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:23:31,415 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 12:23:31,415 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 12:23:31,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 156 states have (on average 1.391025641025641) internal successors, (217), 159 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:31,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 12:23:31,432 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:23:31,432 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 12:23:31,433 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 12:23:31,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:23:31,436 INFO L85 PathProgramCache]: Analyzing trace with hash -2103452747, now seen corresponding path program 1 times [2022-01-10 12:23:31,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:23:31,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590152553] [2022-01-10 12:23:31,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:23:31,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:23:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:23:31,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:23:31,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:23:31,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590152553] [2022-01-10 12:23:31,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590152553] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:23:31,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:23:31,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:23:31,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219765743] [2022-01-10 12:23:31,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:23:31,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 12:23:31,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:23:31,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 12:23:31,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:23:31,610 INFO L87 Difference]: Start difference. First operand has 160 states, 156 states have (on average 1.391025641025641) internal successors, (217), 159 states have internal predecessors, (217), 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 12:23:31,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:23:31,650 INFO L93 Difference]: Finished difference Result 310 states and 423 transitions. [2022-01-10 12:23:31,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 12:23:31,652 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 12:23:31,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:23:31,661 INFO L225 Difference]: With dead ends: 310 [2022-01-10 12:23:31,661 INFO L226 Difference]: Without dead ends: 150 [2022-01-10 12:23:31,664 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 12:23:31,670 INFO L933 BasicCegarLoop]: 207 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, 207 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 12:23:31,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:23:31,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-01-10 12:23:31,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-01-10 12:23:31,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 147 states have (on average 1.3537414965986394) internal successors, (199), 149 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:31,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 199 transitions. [2022-01-10 12:23:31,702 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 199 transitions. Word has length 17 [2022-01-10 12:23:31,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:23:31,703 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 199 transitions. [2022-01-10 12:23:31,703 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 12:23:31,703 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 199 transitions. [2022-01-10 12:23:31,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 12:23:31,703 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:23:31,704 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 12:23:31,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:23:31,704 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 12:23:31,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:23:31,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1389392923, now seen corresponding path program 1 times [2022-01-10 12:23:31,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:23:31,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832816045] [2022-01-10 12:23:31,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:23:31,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:23:31,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:23:31,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:23:31,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:23:31,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832816045] [2022-01-10 12:23:31,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832816045] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:23:31,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:23:31,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:23:31,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369344173] [2022-01-10 12:23:31,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:23:31,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:23:31,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:23:31,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:23:31,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:23:31,761 INFO L87 Difference]: Start difference. First operand 150 states and 199 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 12:23:31,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:23:31,781 INFO L93 Difference]: Finished difference Result 293 states and 391 transitions. [2022-01-10 12:23:31,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:23:31,782 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 12:23:31,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:23:31,783 INFO L225 Difference]: With dead ends: 293 [2022-01-10 12:23:31,783 INFO L226 Difference]: Without dead ends: 150 [2022-01-10 12:23:31,783 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 12:23:31,784 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 184 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:23:31,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 193 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:23:31,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-01-10 12:23:31,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-01-10 12:23:31,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 147 states have (on average 1.3333333333333333) internal successors, (196), 149 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:31,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 196 transitions. [2022-01-10 12:23:31,795 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 196 transitions. Word has length 18 [2022-01-10 12:23:31,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:23:31,795 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 196 transitions. [2022-01-10 12:23:31,795 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 12:23:31,796 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 196 transitions. [2022-01-10 12:23:31,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-10 12:23:31,796 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:23:31,796 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 12:23:31,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:23:31,797 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 12:23:31,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:23:31,797 INFO L85 PathProgramCache]: Analyzing trace with hash 32076462, now seen corresponding path program 1 times [2022-01-10 12:23:31,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:23:31,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111744436] [2022-01-10 12:23:31,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:23:31,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:23:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:23:31,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:23:31,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:23:31,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111744436] [2022-01-10 12:23:31,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111744436] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:23:31,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:23:31,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:23:31,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302556753] [2022-01-10 12:23:31,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:23:31,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:23:31,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:23:31,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:23:31,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:23:31,841 INFO L87 Difference]: Start difference. First operand 150 states and 196 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 12:23:31,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:23:31,893 INFO L93 Difference]: Finished difference Result 355 states and 463 transitions. [2022-01-10 12:23:31,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:23:31,893 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 12:23:31,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:23:31,894 INFO L225 Difference]: With dead ends: 355 [2022-01-10 12:23:31,894 INFO L226 Difference]: Without dead ends: 212 [2022-01-10 12:23:31,895 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 12:23:31,896 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 128 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:23:31,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 304 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:23:31,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-01-10 12:23:31,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 206. [2022-01-10 12:23:31,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 203 states have (on average 1.29064039408867) internal successors, (262), 205 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:31,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 262 transitions. [2022-01-10 12:23:31,907 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 262 transitions. Word has length 23 [2022-01-10 12:23:31,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:23:31,907 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 262 transitions. [2022-01-10 12:23:31,907 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 12:23:31,908 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 262 transitions. [2022-01-10 12:23:31,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-10 12:23:31,908 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:23:31,908 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 12:23:31,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:23:31,909 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 12:23:31,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:23:31,909 INFO L85 PathProgramCache]: Analyzing trace with hash 933023178, now seen corresponding path program 1 times [2022-01-10 12:23:31,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:23:31,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563408361] [2022-01-10 12:23:31,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:23:31,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:23:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:23:31,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:23:31,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:23:31,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563408361] [2022-01-10 12:23:31,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563408361] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:23:31,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:23:31,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:23:31,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7560489] [2022-01-10 12:23:31,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:23:31,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:23:31,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:23:31,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:23:31,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:23:31,989 INFO L87 Difference]: Start difference. First operand 206 states and 262 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 12:23:32,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:23:32,090 INFO L93 Difference]: Finished difference Result 556 states and 694 transitions. [2022-01-10 12:23:32,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 12:23:32,090 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 12:23:32,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:23:32,092 INFO L225 Difference]: With dead ends: 556 [2022-01-10 12:23:32,092 INFO L226 Difference]: Without dead ends: 357 [2022-01-10 12:23:32,093 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 12:23:32,093 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 354 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 861 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 12:23:32,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 861 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:23:32,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-01-10 12:23:32,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 224. [2022-01-10 12:23:32,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 221 states have (on average 1.2669683257918551) internal successors, (280), 223 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:32,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 280 transitions. [2022-01-10 12:23:32,112 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 280 transitions. Word has length 29 [2022-01-10 12:23:32,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:23:32,112 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 280 transitions. [2022-01-10 12:23:32,112 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 12:23:32,112 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 280 transitions. [2022-01-10 12:23:32,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-10 12:23:32,113 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:23:32,113 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 12:23:32,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:23:32,114 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 12:23:32,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:23:32,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1070944790, now seen corresponding path program 1 times [2022-01-10 12:23:32,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:23:32,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3052374] [2022-01-10 12:23:32,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:23:32,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:23:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:23:32,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:23:32,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:23:32,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3052374] [2022-01-10 12:23:32,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3052374] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:23:32,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:23:32,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:23:32,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475143912] [2022-01-10 12:23:32,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:23:32,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:23:32,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:23:32,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:23:32,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:23:32,203 INFO L87 Difference]: Start difference. First operand 224 states and 280 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 12:23:32,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:23:32,324 INFO L93 Difference]: Finished difference Result 993 states and 1248 transitions. [2022-01-10 12:23:32,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 12:23:32,325 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 12:23:32,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:23:32,328 INFO L225 Difference]: With dead ends: 993 [2022-01-10 12:23:32,328 INFO L226 Difference]: Without dead ends: 638 [2022-01-10 12:23:32,330 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 12:23:32,334 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 703 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:23:32,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [703 Valid, 921 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:23:32,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-01-10 12:23:32,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 307. [2022-01-10 12:23:32,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 304 states have (on average 1.263157894736842) internal successors, (384), 306 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:32,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 384 transitions. [2022-01-10 12:23:32,373 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 384 transitions. Word has length 29 [2022-01-10 12:23:32,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:23:32,377 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 384 transitions. [2022-01-10 12:23:32,377 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 12:23:32,377 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 384 transitions. [2022-01-10 12:23:32,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-10 12:23:32,382 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:23:32,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:23:32,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:23:32,383 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 12:23:32,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:23:32,383 INFO L85 PathProgramCache]: Analyzing trace with hash 2092663271, now seen corresponding path program 1 times [2022-01-10 12:23:32,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:23:32,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087743213] [2022-01-10 12:23:32,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:23:32,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:23:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:23:32,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:23:32,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:23:32,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087743213] [2022-01-10 12:23:32,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087743213] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:23:32,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:23:32,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:23:32,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129980394] [2022-01-10 12:23:32,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:23:32,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:23:32,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:23:32,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:23:32,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:23:32,467 INFO L87 Difference]: Start difference. First operand 307 states and 384 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:32,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:23:32,670 INFO L93 Difference]: Finished difference Result 919 states and 1141 transitions. [2022-01-10 12:23:32,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:23:32,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-01-10 12:23:32,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:23:32,673 INFO L225 Difference]: With dead ends: 919 [2022-01-10 12:23:32,673 INFO L226 Difference]: Without dead ends: 913 [2022-01-10 12:23:32,674 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 12:23:32,674 INFO L933 BasicCegarLoop]: 423 mSDtfsCounter, 686 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:23:32,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [686 Valid, 1329 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:23:32,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-01-10 12:23:32,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 307. [2022-01-10 12:23:32,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 304 states have (on average 1.2532894736842106) internal successors, (381), 306 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:32,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 381 transitions. [2022-01-10 12:23:32,700 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 381 transitions. Word has length 38 [2022-01-10 12:23:32,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:23:32,701 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 381 transitions. [2022-01-10 12:23:32,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:32,701 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 381 transitions. [2022-01-10 12:23:32,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-10 12:23:32,701 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:23:32,701 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:23:32,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:23:32,702 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 12:23:32,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:23:32,702 INFO L85 PathProgramCache]: Analyzing trace with hash -491739064, now seen corresponding path program 1 times [2022-01-10 12:23:32,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:23:32,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298476887] [2022-01-10 12:23:32,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:23:32,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:23:32,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:23:32,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:23:32,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:23:32,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298476887] [2022-01-10 12:23:32,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298476887] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:23:32,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:23:32,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:23:32,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144126483] [2022-01-10 12:23:32,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:23:32,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:23:32,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:23:32,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:23:32,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:23:32,736 INFO L87 Difference]: Start difference. First operand 307 states and 381 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:32,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:23:32,821 INFO L93 Difference]: Finished difference Result 841 states and 1027 transitions. [2022-01-10 12:23:32,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:23:32,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-01-10 12:23:32,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:23:32,823 INFO L225 Difference]: With dead ends: 841 [2022-01-10 12:23:32,823 INFO L226 Difference]: Without dead ends: 541 [2022-01-10 12:23:32,823 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 12:23:32,824 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 297 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 614 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 12:23:32,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 614 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:23:32,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-01-10 12:23:32,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 323. [2022-01-10 12:23:32,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 320 states have (on average 1.240625) internal successors, (397), 322 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:32,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 397 transitions. [2022-01-10 12:23:32,845 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 397 transitions. Word has length 38 [2022-01-10 12:23:32,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:23:32,845 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 397 transitions. [2022-01-10 12:23:32,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:32,846 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 397 transitions. [2022-01-10 12:23:32,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-10 12:23:32,846 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:23:32,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:23:32,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:23:32,847 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:23:32,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:23:32,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1015812745, now seen corresponding path program 1 times [2022-01-10 12:23:32,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:23:32,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985771960] [2022-01-10 12:23:32,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:23:32,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:23:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:23:32,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:23:32,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:23:32,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985771960] [2022-01-10 12:23:32,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985771960] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:23:32,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:23:32,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:23:32,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311322979] [2022-01-10 12:23:32,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:23:32,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:23:32,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:23:32,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:23:32,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:23:32,926 INFO L87 Difference]: Start difference. First operand 323 states and 397 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:33,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:23:33,006 INFO L93 Difference]: Finished difference Result 750 states and 917 transitions. [2022-01-10 12:23:33,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:23:33,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-01-10 12:23:33,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:23:33,007 INFO L225 Difference]: With dead ends: 750 [2022-01-10 12:23:33,007 INFO L226 Difference]: Without dead ends: 389 [2022-01-10 12:23:33,008 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 12:23:33,010 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 71 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:23:33,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 383 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:23:33,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-01-10 12:23:33,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2022-01-10 12:23:33,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 386 states have (on average 1.2253886010362693) internal successors, (473), 388 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:33,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 473 transitions. [2022-01-10 12:23:33,041 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 473 transitions. Word has length 38 [2022-01-10 12:23:33,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:23:33,041 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 473 transitions. [2022-01-10 12:23:33,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:33,041 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 473 transitions. [2022-01-10 12:23:33,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 12:23:33,042 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:23:33,042 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:23:33,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:23:33,042 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:23:33,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:23:33,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1427080285, now seen corresponding path program 1 times [2022-01-10 12:23:33,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:23:33,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878285155] [2022-01-10 12:23:33,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:23:33,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:23:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 12:23:33,118 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 12:23:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 12:23:33,193 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 12:23:33,193 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 12:23:33,194 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-10 12:23:33,196 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-10 12:23:33,196 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-10 12:23:33,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:23:33,198 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:23:33,201 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 12:23:33,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:23:33 BasicIcfg [2022-01-10 12:23:33,367 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 12:23:33,367 INFO L158 Benchmark]: Toolchain (without parser) took 3274.46ms. Allocated memory was 158.3MB in the beginning and 207.6MB in the end (delta: 49.3MB). Free memory was 106.5MB in the beginning and 125.3MB in the end (delta: -18.7MB). Peak memory consumption was 31.4MB. Max. memory is 8.0GB. [2022-01-10 12:23:33,368 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 158.3MB. Free memory was 124.3MB in the beginning and 124.2MB in the end (delta: 84.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 12:23:33,368 INFO L158 Benchmark]: CACSL2BoogieTranslator took 506.35ms. Allocated memory is still 158.3MB. Free memory was 106.4MB in the beginning and 118.4MB in the end (delta: -12.0MB). Peak memory consumption was 15.5MB. Max. memory is 8.0GB. [2022-01-10 12:23:33,368 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.15ms. Allocated memory is still 158.3MB. Free memory was 118.4MB in the beginning and 115.0MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 12:23:33,368 INFO L158 Benchmark]: Boogie Preprocessor took 47.92ms. Allocated memory is still 158.3MB. Free memory was 115.0MB in the beginning and 112.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 12:23:33,368 INFO L158 Benchmark]: RCFGBuilder took 506.37ms. Allocated memory is still 158.3MB. Free memory was 112.6MB in the beginning and 90.0MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-01-10 12:23:33,369 INFO L158 Benchmark]: IcfgTransformer took 125.95ms. Allocated memory is still 158.3MB. Free memory was 90.0MB in the beginning and 132.7MB in the end (delta: -42.7MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. [2022-01-10 12:23:33,369 INFO L158 Benchmark]: TraceAbstraction took 2029.92ms. Allocated memory was 158.3MB in the beginning and 207.6MB in the end (delta: 49.3MB). Free memory was 132.2MB in the beginning and 125.3MB in the end (delta: 6.9MB). Peak memory consumption was 56.2MB. Max. memory is 8.0GB. [2022-01-10 12:23:33,370 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 158.3MB. Free memory was 124.3MB in the beginning and 124.2MB in the end (delta: 84.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 506.35ms. Allocated memory is still 158.3MB. Free memory was 106.4MB in the beginning and 118.4MB in the end (delta: -12.0MB). Peak memory consumption was 15.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.15ms. Allocated memory is still 158.3MB. Free memory was 118.4MB in the beginning and 115.0MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 47.92ms. Allocated memory is still 158.3MB. Free memory was 115.0MB in the beginning and 112.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 506.37ms. Allocated memory is still 158.3MB. Free memory was 112.6MB in the beginning and 90.0MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * IcfgTransformer took 125.95ms. Allocated memory is still 158.3MB. Free memory was 90.0MB in the beginning and 132.7MB in the end (delta: -42.7MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. * TraceAbstraction took 2029.92ms. Allocated memory was 158.3MB in the beginning and 207.6MB in the end (delta: 49.3MB). Free memory was 132.2MB in the beginning and 125.3MB in the end (delta: 6.9MB). Peak memory consumption was 56.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 847]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L387] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L590] int pumpRunning = 0; [L591] int systemActive = 1; [L853] int waterLevel = 1; [L854] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L777] int splverifierCounter ; [L778] int tmp ; [L779] int tmp___0 ; [L780] int tmp___1 ; [L781] int tmp___2 ; [L784] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L786] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L788] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L794] tmp = __VERIFIER_nondet_int() [L796] COND TRUE \read(tmp) [L798] CALL waterRise() [L871] COND TRUE waterLevel < 2 [L872] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L798] RET waterRise() [L804] tmp___0 = __VERIFIER_nondet_int() [L806] COND TRUE \read(tmp___0) [L808] CALL changeMethaneLevel() [L883] COND FALSE !(\read(methaneLevelCritical)) [L886] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L808] RET changeMethaneLevel() [L814] tmp___2 = __VERIFIER_nondet_int() [L816] COND TRUE \read(tmp___2) [L818] CALL startSystem() [L771] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L818] RET startSystem() [L831] CALL timeShift() [L597] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L604] COND TRUE \read(systemActive) [L606] CALL processEnvironment() [L652] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L655] COND FALSE !(\read(pumpRunning)) [L670] CALL processEnvironment__wrappee__highWaterSensor() [L626] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L629] COND TRUE ! pumpRunning [L631] CALL, EXPR isHighWaterLevel() [L749] int retValue_acc ; [L750] int tmp ; [L751] int tmp___0 ; [L755] CALL, EXPR isHighWaterSensorDry() [L933] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L936] COND FALSE !(waterLevel < 2) [L940] retValue_acc = 0 [L941] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L755] RET, EXPR isHighWaterSensorDry() [L755] tmp = isHighWaterSensorDry() [L757] COND FALSE !(\read(tmp)) [L760] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L762] retValue_acc = tmp___0 [L763] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L631] RET, EXPR isHighWaterLevel() [L631] tmp = isHighWaterLevel() [L633] COND TRUE \read(tmp) [L635] CALL activatePump() [L680] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L635] RET activatePump() [L670] RET processEnvironment__wrappee__highWaterSensor() [L606] RET processEnvironment() [L612] CALL __utac_acc__Specification1_spec__1() [L193] int tmp ; [L194] int tmp___0 ; [L198] CALL, EXPR isMethaneLevelCritical() [L892] int retValue_acc ; [L895] retValue_acc = methaneLevelCritical [L896] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L198] RET, EXPR isMethaneLevelCritical() [L198] tmp = isMethaneLevelCritical() [L200] COND TRUE \read(tmp) [L202] CALL, EXPR isPumpRunning() [L704] int retValue_acc ; [L707] retValue_acc = pumpRunning [L708] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L202] RET, EXPR isPumpRunning() [L202] tmp___0 = isPumpRunning() [L204] COND TRUE \read(tmp___0) [L206] CALL __automaton_fail() [L847] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 847]: 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: 847]: 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, 160 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2423 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2423 mSDsluCounter, 4812 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2880 mSDsCounter, 120 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 395 IncrementalHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 120 mSolverCounterUnsat, 1932 mSDtfsCounter, 395 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=389occurred in iteration=8, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 1294 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 270 NumberOfCodeBlocks, 270 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 667 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-10 12:23:33,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...