/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec1_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:32:02,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:32:02,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:32:02,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:32:02,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:32:02,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:32:02,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:32:02,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:32:02,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:32:02,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:32:02,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:32:02,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:32:02,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:32:02,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:32:02,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:32:02,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:32:02,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:32:02,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:32:02,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:32:02,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:32:02,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:32:02,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:32:02,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:32:02,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:32:02,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:32:02,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:32:02,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:32:02,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:32:02,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:32:02,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:32:02,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:32:02,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:32:02,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:32:02,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:32:02,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:32:02,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:32:02,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:32:02,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:32:02,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:32:02,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:32:02,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:32:02,935 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:32:02,961 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:32:02,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:32:02,962 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:32:02,962 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:32:02,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:32:02,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:32:02,963 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:32:02,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:32:02,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:32:02,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:32:02,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:32:02,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:32:02,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:32:02,964 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:32:02,964 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:32:02,964 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:32:02,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:32:02,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:32:02,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:32:02,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:32:02,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:32:02,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:32:02,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:32:02,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:32:02,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:32:02,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:32:02,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:32:02,966 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:32:02,966 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:32:02,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:32:02,966 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:32:02,966 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:32:02,967 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:32:02,967 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:32:03,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:32:03,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:32:03,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:32:03,169 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:32:03,170 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:32:03,171 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product21.cil.c [2022-01-11 05:32:03,236 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d37ca07a9/7cffbe20b2d249fd9f73760be1ee8c8e/FLAGe22f1db40 [2022-01-11 05:32:03,684 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:32:03,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product21.cil.c [2022-01-11 05:32:03,713 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d37ca07a9/7cffbe20b2d249fd9f73760be1ee8c8e/FLAGe22f1db40 [2022-01-11 05:32:03,728 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d37ca07a9/7cffbe20b2d249fd9f73760be1ee8c8e [2022-01-11 05:32:03,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:32:03,732 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:32:03,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:32:03,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:32:03,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:32:03,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:32:03" (1/1) ... [2022-01-11 05:32:03,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d019189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:03, skipping insertion in model container [2022-01-11 05:32:03,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:32:03" (1/1) ... [2022-01-11 05:32:03,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:32:03,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:32:04,096 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/elevator_spec1_product21.cil.c[66510,66523] [2022-01-11 05:32:04,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:32:04,121 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:32:04,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:32:04,242 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/elevator_spec1_product21.cil.c[66510,66523] [2022-01-11 05:32:04,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:32:04,253 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:32:04,333 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/elevator_spec1_product21.cil.c[66510,66523] [2022-01-11 05:32:04,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:32:04,357 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:32:04,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:04 WrapperNode [2022-01-11 05:32:04,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:32:04,358 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:32:04,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:32:04,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:32:04,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:04" (1/1) ... [2022-01-11 05:32:04,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:04" (1/1) ... [2022-01-11 05:32:04,575 INFO L137 Inliner]: procedures = 94, calls = 340, calls flagged for inlining = 193, calls inlined = 380, statements flattened = 13048 [2022-01-11 05:32:04,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:32:04,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:32:04,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:32:04,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:32:04,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:04" (1/1) ... [2022-01-11 05:32:04,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:04" (1/1) ... [2022-01-11 05:32:04,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:04" (1/1) ... [2022-01-11 05:32:04,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:04" (1/1) ... [2022-01-11 05:32:04,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:04" (1/1) ... [2022-01-11 05:32:04,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:04" (1/1) ... [2022-01-11 05:32:04,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:04" (1/1) ... [2022-01-11 05:32:04,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:32:04,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:32:04,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:32:04,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:32:04,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:04" (1/1) ... [2022-01-11 05:32:04,800 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:32:04,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:32:04,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:32:04,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:32:04,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:32:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:32:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:32:04,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:32:05,034 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:32:05,035 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:32:09,621 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:32:09,648 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:32:09,648 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:32:09,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:32:09 BoogieIcfgContainer [2022-01-11 05:32:09,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:32:09,653 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:32:09,653 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:32:09,654 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:32:09,656 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:32:09" (1/1) ... [2022-01-11 05:32:10,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:32:10 BasicIcfg [2022-01-11 05:32:10,492 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:32:10,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:32:10,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:32:10,495 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:32:10,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:32:03" (1/4) ... [2022-01-11 05:32:10,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96de12f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:32:10, skipping insertion in model container [2022-01-11 05:32:10,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:04" (2/4) ... [2022-01-11 05:32:10,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96de12f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:32:10, skipping insertion in model container [2022-01-11 05:32:10,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:32:09" (3/4) ... [2022-01-11 05:32:10,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96de12f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:32:10, skipping insertion in model container [2022-01-11 05:32:10,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:32:10" (4/4) ... [2022-01-11 05:32:10,497 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product21.cil.cTransformedIcfg [2022-01-11 05:32:10,500 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:32:10,500 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-11 05:32:10,541 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:32:10,546 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:32:10,546 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-11 05:32:10,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 3521 states, 3515 states have (on average 1.8782361308677098) internal successors, (6602), 3520 states have internal predecessors, (6602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:10,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 05:32:10,613 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:10,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:10,614 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:10,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:10,617 INFO L85 PathProgramCache]: Analyzing trace with hash 218881915, now seen corresponding path program 1 times [2022-01-11 05:32:10,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:10,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602692785] [2022-01-11 05:32:10,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:10,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:10,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:10,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:10,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602692785] [2022-01-11 05:32:10,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602692785] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:10,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:10,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:10,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438612299] [2022-01-11 05:32:10,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:10,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:10,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:10,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:10,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:10,992 INFO L87 Difference]: Start difference. First operand has 3521 states, 3515 states have (on average 1.8782361308677098) internal successors, (6602), 3520 states have internal predecessors, (6602), 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 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:11,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:11,277 INFO L93 Difference]: Finished difference Result 10468 states and 19646 transitions. [2022-01-11 05:32:11,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:11,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-01-11 05:32:11,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:11,398 INFO L225 Difference]: With dead ends: 10468 [2022-01-11 05:32:11,398 INFO L226 Difference]: Without dead ends: 6949 [2022-01-11 05:32:11,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:11,420 INFO L933 BasicCegarLoop]: 13039 mSDtfsCounter, 6563 mSDsluCounter, 6469 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6563 SdHoareTripleChecker+Valid, 19508 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:11,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6563 Valid, 19508 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:11,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6949 states. [2022-01-11 05:32:11,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6949 to 3510. [2022-01-11 05:32:11,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3510 states, 3505 states have (on average 1.876747503566334) internal successors, (6578), 3509 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:11,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 6578 transitions. [2022-01-11 05:32:11,600 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 6578 transitions. Word has length 63 [2022-01-11 05:32:11,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:11,600 INFO L470 AbstractCegarLoop]: Abstraction has 3510 states and 6578 transitions. [2022-01-11 05:32:11,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:11,601 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 6578 transitions. [2022-01-11 05:32:11,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-11 05:32:11,604 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:11,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:11,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:32:11,605 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:11,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:11,605 INFO L85 PathProgramCache]: Analyzing trace with hash -795188, now seen corresponding path program 1 times [2022-01-11 05:32:11,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:11,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637790018] [2022-01-11 05:32:11,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:11,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:11,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:11,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:11,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637790018] [2022-01-11 05:32:11,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637790018] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:11,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:11,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:11,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588742144] [2022-01-11 05:32:11,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:11,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:11,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:11,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:11,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:11,675 INFO L87 Difference]: Start difference. First operand 3510 states and 6578 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:11,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:11,929 INFO L93 Difference]: Finished difference Result 10373 states and 19454 transitions. [2022-01-11 05:32:11,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:11,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2022-01-11 05:32:11,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:11,953 INFO L225 Difference]: With dead ends: 10373 [2022-01-11 05:32:11,954 INFO L226 Difference]: Without dead ends: 6913 [2022-01-11 05:32:11,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:11,962 INFO L933 BasicCegarLoop]: 12902 mSDtfsCounter, 6465 mSDsluCounter, 6409 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6465 SdHoareTripleChecker+Valid, 19311 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:11,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6465 Valid, 19311 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:11,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6913 states. [2022-01-11 05:32:12,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6913 to 3510. [2022-01-11 05:32:12,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3510 states, 3505 states have (on average 1.8696148359486449) internal successors, (6553), 3509 states have internal predecessors, (6553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:12,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 6553 transitions. [2022-01-11 05:32:12,055 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 6553 transitions. Word has length 70 [2022-01-11 05:32:12,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:12,055 INFO L470 AbstractCegarLoop]: Abstraction has 3510 states and 6553 transitions. [2022-01-11 05:32:12,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:12,056 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 6553 transitions. [2022-01-11 05:32:12,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-11 05:32:12,058 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:12,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:12,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:32:12,059 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:12,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:12,059 INFO L85 PathProgramCache]: Analyzing trace with hash 597048517, now seen corresponding path program 1 times [2022-01-11 05:32:12,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:12,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518708073] [2022-01-11 05:32:12,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:12,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:12,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:12,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:12,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518708073] [2022-01-11 05:32:12,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518708073] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:12,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:12,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:12,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681155536] [2022-01-11 05:32:12,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:12,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:12,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:12,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:12,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:12,112 INFO L87 Difference]: Start difference. First operand 3510 states and 6553 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:12,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:12,278 INFO L93 Difference]: Finished difference Result 6949 states and 13008 transitions. [2022-01-11 05:32:12,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:12,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 73 [2022-01-11 05:32:12,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:12,289 INFO L225 Difference]: With dead ends: 6949 [2022-01-11 05:32:12,289 INFO L226 Difference]: Without dead ends: 3510 [2022-01-11 05:32:12,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:12,294 INFO L933 BasicCegarLoop]: 6534 mSDtfsCounter, 6542 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6542 SdHoareTripleChecker+Valid, 6541 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:12,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6542 Valid, 6541 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:12,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3510 states. [2022-01-11 05:32:12,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3510 to 3510. [2022-01-11 05:32:12,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3510 states, 3505 states have (on average 1.8690442225392296) internal successors, (6551), 3509 states have internal predecessors, (6551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:12,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 6551 transitions. [2022-01-11 05:32:12,363 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 6551 transitions. Word has length 73 [2022-01-11 05:32:12,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:12,363 INFO L470 AbstractCegarLoop]: Abstraction has 3510 states and 6551 transitions. [2022-01-11 05:32:12,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:12,364 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 6551 transitions. [2022-01-11 05:32:12,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-11 05:32:12,366 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:12,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:12,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:32:12,366 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:12,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:12,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1204319647, now seen corresponding path program 1 times [2022-01-11 05:32:12,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:12,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136751936] [2022-01-11 05:32:12,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:12,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:12,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:12,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:12,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136751936] [2022-01-11 05:32:12,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136751936] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:12,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:12,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:12,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033410521] [2022-01-11 05:32:12,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:12,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:12,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:12,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:12,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:12,431 INFO L87 Difference]: Start difference. First operand 3510 states and 6551 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:12,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:12,580 INFO L93 Difference]: Finished difference Result 6913 states and 12935 transitions. [2022-01-11 05:32:12,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:12,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2022-01-11 05:32:12,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:12,593 INFO L225 Difference]: With dead ends: 6913 [2022-01-11 05:32:12,593 INFO L226 Difference]: Without dead ends: 3510 [2022-01-11 05:32:12,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:12,599 INFO L933 BasicCegarLoop]: 6456 mSDtfsCounter, 6523 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6523 SdHoareTripleChecker+Valid, 6471 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:12,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6523 Valid, 6471 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:12,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3510 states. [2022-01-11 05:32:12,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3510 to 3510. [2022-01-11 05:32:12,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3510 states, 3505 states have (on average 1.866191155492154) internal successors, (6541), 3509 states have internal predecessors, (6541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:12,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 6541 transitions. [2022-01-11 05:32:12,674 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 6541 transitions. Word has length 75 [2022-01-11 05:32:12,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:12,675 INFO L470 AbstractCegarLoop]: Abstraction has 3510 states and 6541 transitions. [2022-01-11 05:32:12,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:12,675 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 6541 transitions. [2022-01-11 05:32:12,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-11 05:32:12,678 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:12,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:12,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:32:12,678 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:12,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:12,678 INFO L85 PathProgramCache]: Analyzing trace with hash -145311063, now seen corresponding path program 1 times [2022-01-11 05:32:12,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:12,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387727175] [2022-01-11 05:32:12,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:12,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:12,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:12,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:12,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387727175] [2022-01-11 05:32:12,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387727175] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:12,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:12,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:32:12,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205722520] [2022-01-11 05:32:12,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:12,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:12,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:12,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:12,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:12,740 INFO L87 Difference]: Start difference. First operand 3510 states and 6541 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:12,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:12,971 INFO L93 Difference]: Finished difference Result 8339 states and 15592 transitions. [2022-01-11 05:32:12,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:12,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 77 [2022-01-11 05:32:12,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:12,996 INFO L225 Difference]: With dead ends: 8339 [2022-01-11 05:32:12,996 INFO L226 Difference]: Without dead ends: 5801 [2022-01-11 05:32:12,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:13,001 INFO L933 BasicCegarLoop]: 6830 mSDtfsCounter, 6448 mSDsluCounter, 4246 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6448 SdHoareTripleChecker+Valid, 11076 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:13,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6448 Valid, 11076 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:13,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5801 states. [2022-01-11 05:32:13,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5801 to 5784. [2022-01-11 05:32:13,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5779 states have (on average 1.8665859145180828) internal successors, (10787), 5783 states have internal predecessors, (10787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:13,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 10787 transitions. [2022-01-11 05:32:13,139 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 10787 transitions. Word has length 77 [2022-01-11 05:32:13,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:13,139 INFO L470 AbstractCegarLoop]: Abstraction has 5784 states and 10787 transitions. [2022-01-11 05:32:13,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:13,140 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 10787 transitions. [2022-01-11 05:32:13,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-11 05:32:13,142 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:13,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:13,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:32:13,143 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:13,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:13,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1517514261, now seen corresponding path program 1 times [2022-01-11 05:32:13,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:13,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125089801] [2022-01-11 05:32:13,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:13,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:13,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:13,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:13,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125089801] [2022-01-11 05:32:13,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125089801] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:13,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:13,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:32:13,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555912820] [2022-01-11 05:32:13,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:13,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:13,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:13,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:13,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:13,195 INFO L87 Difference]: Start difference. First operand 5784 states and 10787 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:13,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:13,435 INFO L93 Difference]: Finished difference Result 14457 states and 27019 transitions. [2022-01-11 05:32:13,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:13,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 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 78 [2022-01-11 05:32:13,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:13,458 INFO L225 Difference]: With dead ends: 14457 [2022-01-11 05:32:13,458 INFO L226 Difference]: Without dead ends: 10249 [2022-01-11 05:32:13,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:13,469 INFO L933 BasicCegarLoop]: 6480 mSDtfsCounter, 6433 mSDsluCounter, 4265 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6433 SdHoareTripleChecker+Valid, 10745 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:13,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6433 Valid, 10745 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:13,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10249 states. [2022-01-11 05:32:13,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10249 to 10232. [2022-01-11 05:32:13,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10232 states, 10227 states have (on average 1.8667253348978194) internal successors, (19091), 10231 states have internal predecessors, (19091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:13,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10232 states to 10232 states and 19091 transitions. [2022-01-11 05:32:13,747 INFO L78 Accepts]: Start accepts. Automaton has 10232 states and 19091 transitions. Word has length 78 [2022-01-11 05:32:13,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:13,748 INFO L470 AbstractCegarLoop]: Abstraction has 10232 states and 19091 transitions. [2022-01-11 05:32:13,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:13,748 INFO L276 IsEmpty]: Start isEmpty. Operand 10232 states and 19091 transitions. [2022-01-11 05:32:13,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-11 05:32:13,751 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:13,751 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:13,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:32:13,752 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:13,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:13,752 INFO L85 PathProgramCache]: Analyzing trace with hash -15343300, now seen corresponding path program 1 times [2022-01-11 05:32:13,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:13,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455681674] [2022-01-11 05:32:13,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:13,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:13,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:13,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:13,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455681674] [2022-01-11 05:32:13,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455681674] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:13,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:13,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:32:13,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561746554] [2022-01-11 05:32:13,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:13,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:13,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:13,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:13,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:13,803 INFO L87 Difference]: Start difference. First operand 10232 states and 19091 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:14,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:14,101 INFO L93 Difference]: Finished difference Result 26493 states and 49484 transitions. [2022-01-11 05:32:14,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:14,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 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 79 [2022-01-11 05:32:14,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:14,145 INFO L225 Difference]: With dead ends: 26493 [2022-01-11 05:32:14,145 INFO L226 Difference]: Without dead ends: 18935 [2022-01-11 05:32:14,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:14,163 INFO L933 BasicCegarLoop]: 6466 mSDtfsCounter, 6418 mSDsluCounter, 4284 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6418 SdHoareTripleChecker+Valid, 10750 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:14,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6418 Valid, 10750 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:14,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18935 states. [2022-01-11 05:32:14,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18935 to 18918. [2022-01-11 05:32:14,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18918 states, 18913 states have (on average 1.8659123354306562) internal successors, (35290), 18917 states have internal predecessors, (35290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:14,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18918 states to 18918 states and 35290 transitions. [2022-01-11 05:32:14,616 INFO L78 Accepts]: Start accepts. Automaton has 18918 states and 35290 transitions. Word has length 79 [2022-01-11 05:32:14,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:14,617 INFO L470 AbstractCegarLoop]: Abstraction has 18918 states and 35290 transitions. [2022-01-11 05:32:14,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:14,617 INFO L276 IsEmpty]: Start isEmpty. Operand 18918 states and 35290 transitions. [2022-01-11 05:32:14,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-11 05:32:14,621 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:14,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:14,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:32:14,622 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:14,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:14,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1460523099, now seen corresponding path program 1 times [2022-01-11 05:32:14,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:14,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298884378] [2022-01-11 05:32:14,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:14,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:14,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:14,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:14,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298884378] [2022-01-11 05:32:14,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298884378] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:14,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:14,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:32:14,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892378030] [2022-01-11 05:32:14,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:14,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:14,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:14,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:14,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:14,689 INFO L87 Difference]: Start difference. First operand 18918 states and 35290 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:15,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:15,319 INFO L93 Difference]: Finished difference Result 50145 states and 93571 transitions. [2022-01-11 05:32:15,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:15,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 80 [2022-01-11 05:32:15,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:15,397 INFO L225 Difference]: With dead ends: 50145 [2022-01-11 05:32:15,398 INFO L226 Difference]: Without dead ends: 35877 [2022-01-11 05:32:15,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:15,420 INFO L933 BasicCegarLoop]: 6452 mSDtfsCounter, 6403 mSDsluCounter, 4303 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6403 SdHoareTripleChecker+Valid, 10755 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:15,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6403 Valid, 10755 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:15,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35877 states. [2022-01-11 05:32:15,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35877 to 35860. [2022-01-11 05:32:16,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35860 states, 35855 states have (on average 1.8640914795704924) internal successors, (66837), 35859 states have internal predecessors, (66837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:16,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35860 states to 35860 states and 66837 transitions. [2022-01-11 05:32:16,078 INFO L78 Accepts]: Start accepts. Automaton has 35860 states and 66837 transitions. Word has length 80 [2022-01-11 05:32:16,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:16,079 INFO L470 AbstractCegarLoop]: Abstraction has 35860 states and 66837 transitions. [2022-01-11 05:32:16,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:16,079 INFO L276 IsEmpty]: Start isEmpty. Operand 35860 states and 66837 transitions. [2022-01-11 05:32:16,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-11 05:32:16,082 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:16,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:16,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:32:16,083 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:16,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:16,083 INFO L85 PathProgramCache]: Analyzing trace with hash -681318402, now seen corresponding path program 1 times [2022-01-11 05:32:16,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:16,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988487764] [2022-01-11 05:32:16,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:16,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:16,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:16,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:16,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988487764] [2022-01-11 05:32:16,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988487764] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:16,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:16,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:32:16,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023976576] [2022-01-11 05:32:16,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:16,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:16,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:16,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:16,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:16,152 INFO L87 Difference]: Start difference. First operand 35860 states and 66837 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:17,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:17,156 INFO L93 Difference]: Finished difference Result 96589 states and 179994 transitions. [2022-01-11 05:32:17,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:17,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 81 [2022-01-11 05:32:17,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:17,301 INFO L225 Difference]: With dead ends: 96589 [2022-01-11 05:32:17,302 INFO L226 Difference]: Without dead ends: 68891 [2022-01-11 05:32:17,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:17,348 INFO L933 BasicCegarLoop]: 6438 mSDtfsCounter, 6388 mSDsluCounter, 4322 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6388 SdHoareTripleChecker+Valid, 10760 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:17,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6388 Valid, 10760 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:17,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68891 states. [2022-01-11 05:32:18,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68891 to 68874. [2022-01-11 05:32:18,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68874 states, 68869 states have (on average 1.861447095209746) internal successors, (128196), 68873 states have internal predecessors, (128196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:18,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68874 states to 68874 states and 128196 transitions. [2022-01-11 05:32:18,645 INFO L78 Accepts]: Start accepts. Automaton has 68874 states and 128196 transitions. Word has length 81 [2022-01-11 05:32:18,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:18,645 INFO L470 AbstractCegarLoop]: Abstraction has 68874 states and 128196 transitions. [2022-01-11 05:32:18,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:18,646 INFO L276 IsEmpty]: Start isEmpty. Operand 68874 states and 128196 transitions. [2022-01-11 05:32:18,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-11 05:32:18,653 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:18,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:18,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:32:18,653 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:18,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:18,654 INFO L85 PathProgramCache]: Analyzing trace with hash 280295615, now seen corresponding path program 1 times [2022-01-11 05:32:18,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:18,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122720021] [2022-01-11 05:32:18,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:18,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:18,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:18,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:18,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122720021] [2022-01-11 05:32:18,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122720021] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:18,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:18,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:18,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639243524] [2022-01-11 05:32:18,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:18,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:18,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:18,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:18,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:18,893 INFO L87 Difference]: Start difference. First operand 68874 states and 128196 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:20,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:20,552 INFO L93 Difference]: Finished difference Result 191947 states and 357153 transitions. [2022-01-11 05:32:20,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:20,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 81 [2022-01-11 05:32:20,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:20,825 INFO L225 Difference]: With dead ends: 191947 [2022-01-11 05:32:20,825 INFO L226 Difference]: Without dead ends: 137550 [2022-01-11 05:32:20,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:20,885 INFO L933 BasicCegarLoop]: 9630 mSDtfsCounter, 6449 mSDsluCounter, 6379 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6449 SdHoareTripleChecker+Valid, 16009 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:20,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6449 Valid, 16009 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:21,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137550 states. [2022-01-11 05:32:23,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137550 to 137550. [2022-01-11 05:32:23,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137550 states, 137545 states have (on average 1.8615798465956597) internal successors, (256051), 137549 states have internal predecessors, (256051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:23,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137550 states to 137550 states and 256051 transitions. [2022-01-11 05:32:23,648 INFO L78 Accepts]: Start accepts. Automaton has 137550 states and 256051 transitions. Word has length 81 [2022-01-11 05:32:23,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:23,648 INFO L470 AbstractCegarLoop]: Abstraction has 137550 states and 256051 transitions. [2022-01-11 05:32:23,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:23,648 INFO L276 IsEmpty]: Start isEmpty. Operand 137550 states and 256051 transitions. [2022-01-11 05:32:23,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-11 05:32:23,654 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:23,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:23,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:32:23,655 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:23,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:23,655 INFO L85 PathProgramCache]: Analyzing trace with hash 99249632, now seen corresponding path program 1 times [2022-01-11 05:32:23,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:23,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745552734] [2022-01-11 05:32:23,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:23,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:23,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:23,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:23,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:23,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745552734] [2022-01-11 05:32:23,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745552734] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:23,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:23,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:23,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153996638] [2022-01-11 05:32:23,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:23,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:23,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:23,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:23,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:23,705 INFO L87 Difference]: Start difference. First operand 137550 states and 256051 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:27,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:27,059 INFO L93 Difference]: Finished difference Result 383180 states and 713026 transitions. [2022-01-11 05:32:27,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:27,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2022-01-11 05:32:27,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:27,835 INFO L225 Difference]: With dead ends: 383180 [2022-01-11 05:32:27,835 INFO L226 Difference]: Without dead ends: 274720 [2022-01-11 05:32:27,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:27,935 INFO L933 BasicCegarLoop]: 6468 mSDtfsCounter, 6384 mSDsluCounter, 6382 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6384 SdHoareTripleChecker+Valid, 12850 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:27,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6384 Valid, 12850 Invalid, 16 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:28,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274720 states. [2022-01-11 05:32:32,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274720 to 274718. [2022-01-11 05:32:32,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274718 states, 274713 states have (on average 1.8616192171466222) internal successors, (511411), 274717 states have internal predecessors, (511411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:33,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274718 states to 274718 states and 511411 transitions. [2022-01-11 05:32:33,906 INFO L78 Accepts]: Start accepts. Automaton has 274718 states and 511411 transitions. Word has length 82 [2022-01-11 05:32:33,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:33,907 INFO L470 AbstractCegarLoop]: Abstraction has 274718 states and 511411 transitions. [2022-01-11 05:32:33,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:33,907 INFO L276 IsEmpty]: Start isEmpty. Operand 274718 states and 511411 transitions. [2022-01-11 05:32:33,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-11 05:32:33,917 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:33,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:33,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:32:33,918 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:33,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:33,918 INFO L85 PathProgramCache]: Analyzing trace with hash 135289136, now seen corresponding path program 1 times [2022-01-11 05:32:33,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:33,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642924564] [2022-01-11 05:32:33,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:33,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:33,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:33,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:33,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642924564] [2022-01-11 05:32:33,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642924564] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:34,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:34,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:32:34,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072176416] [2022-01-11 05:32:34,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:34,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:32:34,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:34,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:32:34,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:34,001 INFO L87 Difference]: Start difference. First operand 274718 states and 511411 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:52,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:52,207 INFO L93 Difference]: Finished difference Result 1647524 states and 3067261 transitions. [2022-01-11 05:32:52,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:32:52,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 82 [2022-01-11 05:32:52,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:56,803 INFO L225 Difference]: With dead ends: 1647524 [2022-01-11 05:32:56,804 INFO L226 Difference]: Without dead ends: 1372835 [2022-01-11 05:32:57,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:32:57,256 INFO L933 BasicCegarLoop]: 25431 mSDtfsCounter, 19133 mSDsluCounter, 31753 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19133 SdHoareTripleChecker+Valid, 57184 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:57,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19133 Valid, 57184 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:58,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372835 states.