/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:45:53,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:45:53,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:45:53,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:45:53,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:45:53,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:45:53,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:45:53,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:45:53,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:45:53,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:45:53,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:45:53,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:45:53,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:45:53,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:45:53,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:45:53,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:45:53,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:45:53,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:45:53,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:45:53,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:45:53,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:45:53,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:45:53,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:45:53,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:45:53,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:45:53,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:45:53,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:45:53,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:45:53,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:45:53,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:45:53,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:45:53,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:45:53,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:45:53,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:45:53,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:45:53,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:45:53,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:45:53,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:45:53,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:45:53,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:45:53,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:45:53,787 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 23:45:53,816 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:45:53,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:45:53,817 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:45:53,817 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:45:53,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:45:53,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:45:53,818 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:45:53,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:45:53,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:45:53,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:45:53,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:45:53,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:45:53,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:45:53,820 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:45:53,820 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:45:53,820 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:45:53,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:45:53,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:45:53,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:45:53,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:45:53,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:45:53,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:45:53,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:45:53,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:45:53,822 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:45:53,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:45:53,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:45:53,823 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:45:53,823 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:45:53,823 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:45:53,823 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:45:53,823 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:45:53,824 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:45:53,824 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:45:54,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:45:54,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:45:54,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:45:54,073 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:45:54,074 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:45:54,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product23.cil.c [2022-01-10 23:45:54,145 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/110e91bae/8531d5f5c256465a95c4ae7eb5bf7deb/FLAGcba501a30 [2022-01-10 23:45:54,547 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:45:54,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product23.cil.c [2022-01-10 23:45:54,583 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/110e91bae/8531d5f5c256465a95c4ae7eb5bf7deb/FLAGcba501a30 [2022-01-10 23:45:54,862 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/110e91bae/8531d5f5c256465a95c4ae7eb5bf7deb [2022-01-10 23:45:54,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:45:54,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:45:54,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:45:54,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:45:54,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:45:54,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:45:54" (1/1) ... [2022-01-10 23:45:54,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5420802e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:54, skipping insertion in model container [2022-01-10 23:45:54,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:45:54" (1/1) ... [2022-01-10 23:45:54,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:45:54,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:45:55,293 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_spec2_product23.cil.c[35995,36008] [2022-01-10 23:45:55,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:45:55,424 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:45:55,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:45:55,500 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_spec2_product23.cil.c[35995,36008] [2022-01-10 23:45:55,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:45:55,575 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:45:55,631 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_spec2_product23.cil.c[35995,36008] [2022-01-10 23:45:55,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:45:55,701 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:45:55,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:55 WrapperNode [2022-01-10 23:45:55,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:45:55,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:45:55,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:45:55,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:45:55,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:55" (1/1) ... [2022-01-10 23:45:55,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:55" (1/1) ... [2022-01-10 23:45:55,911 INFO L137 Inliner]: procedures = 98, calls = 347, calls flagged for inlining = 200, calls inlined = 422, statements flattened = 13752 [2022-01-10 23:45:55,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:45:55,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:45:55,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:45:55,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:45:55,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:55" (1/1) ... [2022-01-10 23:45:55,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:55" (1/1) ... [2022-01-10 23:45:55,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:55" (1/1) ... [2022-01-10 23:45:55,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:55" (1/1) ... [2022-01-10 23:45:56,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:55" (1/1) ... [2022-01-10 23:45:56,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:55" (1/1) ... [2022-01-10 23:45:56,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:55" (1/1) ... [2022-01-10 23:45:56,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:45:56,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:45:56,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:45:56,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:45:56,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:55" (1/1) ... [2022-01-10 23:45:56,161 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:45:56,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:45:56,179 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 23:45:56,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 23:45:56,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:45:56,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:45:56,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:45:56,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:45:56,347 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:45:56,348 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:46:01,784 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:46:01,816 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:46:01,817 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:46:01,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:46:01 BoogieIcfgContainer [2022-01-10 23:46:01,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:46:01,824 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:46:01,824 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:46:01,825 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:46:01,827 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:46:01" (1/1) ... [2022-01-10 23:46:02,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:46:02 BasicIcfg [2022-01-10 23:46:02,821 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:46:02,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:46:02,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:46:02,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:46:02,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:45:54" (1/4) ... [2022-01-10 23:46:02,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2919d16b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:46:02, skipping insertion in model container [2022-01-10 23:46:02,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:55" (2/4) ... [2022-01-10 23:46:02,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2919d16b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:46:02, skipping insertion in model container [2022-01-10 23:46:02,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:46:01" (3/4) ... [2022-01-10 23:46:02,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2919d16b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:46:02, skipping insertion in model container [2022-01-10 23:46:02,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:46:02" (4/4) ... [2022-01-10 23:46:02,830 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product23.cil.cTransformedIcfg [2022-01-10 23:46:02,836 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:46:02,836 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 23:46:02,889 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:46:02,894 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 23:46:02,894 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 23:46:02,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 3640 states, 3634 states have (on average 1.8709411117226198) internal successors, (6799), 3639 states have internal predecessors, (6799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:02,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 23:46:02,968 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:02,969 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] [2022-01-10 23:46:02,970 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)] === [2022-01-10 23:46:02,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:02,974 INFO L85 PathProgramCache]: Analyzing trace with hash -138128181, now seen corresponding path program 1 times [2022-01-10 23:46:02,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:02,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984889937] [2022-01-10 23:46:02,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:02,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:03,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:03,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:03,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984889937] [2022-01-10 23:46:03,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984889937] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:03,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:03,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:03,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966906225] [2022-01-10 23:46:03,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:03,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:03,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:03,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:03,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:03,357 INFO L87 Difference]: Start difference. First operand has 3640 states, 3634 states have (on average 1.8709411117226198) internal successors, (6799), 3639 states have internal predecessors, (6799), 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 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:03,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:03,650 INFO L93 Difference]: Finished difference Result 7265 states and 13575 transitions. [2022-01-10 23:46:03,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:03,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2022-01-10 23:46:03,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:03,688 INFO L225 Difference]: With dead ends: 7265 [2022-01-10 23:46:03,688 INFO L226 Difference]: Without dead ends: 3629 [2022-01-10 23:46:03,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:03,711 INFO L933 BasicCegarLoop]: 6778 mSDtfsCounter, 6773 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6773 SdHoareTripleChecker+Valid, 6789 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:03,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6773 Valid, 6789 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:46:03,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3629 states. [2022-01-10 23:46:03,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3629 to 3629. [2022-01-10 23:46:03,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3629 states, 3624 states have (on average 1.8694812362030906) internal successors, (6775), 3628 states have internal predecessors, (6775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:03,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3629 states to 3629 states and 6775 transitions. [2022-01-10 23:46:03,885 INFO L78 Accepts]: Start accepts. Automaton has 3629 states and 6775 transitions. Word has length 51 [2022-01-10 23:46:03,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:03,886 INFO L470 AbstractCegarLoop]: Abstraction has 3629 states and 6775 transitions. [2022-01-10 23:46:03,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:03,886 INFO L276 IsEmpty]: Start isEmpty. Operand 3629 states and 6775 transitions. [2022-01-10 23:46:03,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 23:46:03,890 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:03,890 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] [2022-01-10 23:46:03,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:46:03,891 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)] === [2022-01-10 23:46:03,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:03,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1350356560, now seen corresponding path program 1 times [2022-01-10 23:46:03,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:03,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810119649] [2022-01-10 23:46:03,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:03,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:04,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:04,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:04,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810119649] [2022-01-10 23:46:04,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810119649] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:04,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:04,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:04,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791669083] [2022-01-10 23:46:04,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:04,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:04,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:04,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:04,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:04,012 INFO L87 Difference]: Start difference. First operand 3629 states and 6775 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:04,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:04,273 INFO L93 Difference]: Finished difference Result 7208 states and 13464 transitions. [2022-01-10 23:46:04,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:04,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2022-01-10 23:46:04,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:04,289 INFO L225 Difference]: With dead ends: 7208 [2022-01-10 23:46:04,289 INFO L226 Difference]: Without dead ends: 3629 [2022-01-10 23:46:04,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:04,299 INFO L933 BasicCegarLoop]: 6715 mSDtfsCounter, 6733 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6733 SdHoareTripleChecker+Valid, 6730 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:04,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6733 Valid, 6730 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:46:04,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3629 states. [2022-01-10 23:46:04,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3629 to 3629. [2022-01-10 23:46:04,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3629 states, 3624 states have (on average 1.8625827814569536) internal successors, (6750), 3628 states have internal predecessors, (6750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:04,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3629 states to 3629 states and 6750 transitions. [2022-01-10 23:46:04,405 INFO L78 Accepts]: Start accepts. Automaton has 3629 states and 6750 transitions. Word has length 58 [2022-01-10 23:46:04,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:04,405 INFO L470 AbstractCegarLoop]: Abstraction has 3629 states and 6750 transitions. [2022-01-10 23:46:04,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:04,409 INFO L276 IsEmpty]: Start isEmpty. Operand 3629 states and 6750 transitions. [2022-01-10 23:46:04,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 23:46:04,418 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:04,418 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] [2022-01-10 23:46:04,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:46:04,418 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)] === [2022-01-10 23:46:04,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:04,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1089444315, now seen corresponding path program 1 times [2022-01-10 23:46:04,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:04,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120867514] [2022-01-10 23:46:04,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:04,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:04,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:04,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:04,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120867514] [2022-01-10 23:46:04,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120867514] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:04,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:04,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:04,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325538587] [2022-01-10 23:46:04,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:04,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:04,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:04,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:04,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:04,575 INFO L87 Difference]: Start difference. First operand 3629 states and 6750 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:04,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:04,791 INFO L93 Difference]: Finished difference Result 7907 states and 14745 transitions. [2022-01-10 23:46:04,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:04,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 61 [2022-01-10 23:46:04,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:04,819 INFO L225 Difference]: With dead ends: 7907 [2022-01-10 23:46:04,819 INFO L226 Difference]: Without dead ends: 6069 [2022-01-10 23:46:04,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:04,826 INFO L933 BasicCegarLoop]: 7215 mSDtfsCounter, 6684 mSDsluCounter, 4561 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6684 SdHoareTripleChecker+Valid, 11776 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:04,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6684 Valid, 11776 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:46:04,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6069 states. [2022-01-10 23:46:04,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6069 to 6069. [2022-01-10 23:46:04,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6069 states, 6064 states have (on average 1.866754617414248) internal successors, (11320), 6068 states have internal predecessors, (11320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:05,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6069 states to 6069 states and 11320 transitions. [2022-01-10 23:46:05,007 INFO L78 Accepts]: Start accepts. Automaton has 6069 states and 11320 transitions. Word has length 61 [2022-01-10 23:46:05,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:05,008 INFO L470 AbstractCegarLoop]: Abstraction has 6069 states and 11320 transitions. [2022-01-10 23:46:05,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:05,008 INFO L276 IsEmpty]: Start isEmpty. Operand 6069 states and 11320 transitions. [2022-01-10 23:46:05,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-10 23:46:05,012 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:05,012 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] [2022-01-10 23:46:05,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:46:05,012 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:05,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:05,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1481141723, now seen corresponding path program 1 times [2022-01-10 23:46:05,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:05,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522919952] [2022-01-10 23:46:05,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:05,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:05,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:05,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:05,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:05,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522919952] [2022-01-10 23:46:05,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522919952] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:05,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:05,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:05,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774753310] [2022-01-10 23:46:05,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:05,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:05,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:05,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:05,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:05,086 INFO L87 Difference]: Start difference. First operand 6069 states and 11320 transitions. 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) [2022-01-10 23:46:05,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:05,425 INFO L93 Difference]: Finished difference Result 14484 states and 27053 transitions. [2022-01-10 23:46:05,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:05,426 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 [2022-01-10 23:46:05,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:05,487 INFO L225 Difference]: With dead ends: 14484 [2022-01-10 23:46:05,487 INFO L226 Difference]: Without dead ends: 10832 [2022-01-10 23:46:05,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:05,506 INFO L933 BasicCegarLoop]: 6747 mSDtfsCounter, 6683 mSDsluCounter, 4564 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6683 SdHoareTripleChecker+Valid, 11311 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:05,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6683 Valid, 11311 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:46:05,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10832 states. [2022-01-10 23:46:05,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10832 to 10830. [2022-01-10 23:46:05,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10830 states, 10825 states have (on average 1.8691916859122402) internal successors, (20234), 10829 states have internal predecessors, (20234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:05,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10830 states to 10830 states and 20234 transitions. [2022-01-10 23:46:05,844 INFO L78 Accepts]: Start accepts. Automaton has 10830 states and 20234 transitions. Word has length 63 [2022-01-10 23:46:05,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:05,846 INFO L470 AbstractCegarLoop]: Abstraction has 10830 states and 20234 transitions. [2022-01-10 23:46:05,846 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) [2022-01-10 23:46:05,847 INFO L276 IsEmpty]: Start isEmpty. Operand 10830 states and 20234 transitions. [2022-01-10 23:46:05,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 23:46:05,851 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:05,851 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] [2022-01-10 23:46:05,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:46:05,852 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:05,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:05,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1737466214, now seen corresponding path program 1 times [2022-01-10 23:46:05,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:05,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321457918] [2022-01-10 23:46:05,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:05,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:05,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:05,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:05,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321457918] [2022-01-10 23:46:05,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321457918] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:05,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:05,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:05,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800099408] [2022-01-10 23:46:05,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:05,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:05,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:05,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:05,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:05,952 INFO L87 Difference]: Start difference. First operand 10830 states and 20234 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:06,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:06,393 INFO L93 Difference]: Finished difference Result 27388 states and 51198 transitions. [2022-01-10 23:46:06,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:06,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2022-01-10 23:46:06,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:06,450 INFO L225 Difference]: With dead ends: 27388 [2022-01-10 23:46:06,450 INFO L226 Difference]: Without dead ends: 20117 [2022-01-10 23:46:06,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:06,471 INFO L933 BasicCegarLoop]: 6747 mSDtfsCounter, 6671 mSDsluCounter, 4567 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6671 SdHoareTripleChecker+Valid, 11314 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:06,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6671 Valid, 11314 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:46:06,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20117 states. [2022-01-10 23:46:06,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20117 to 20113. [2022-01-10 23:46:06,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20113 states, 20108 states have (on average 1.8703003779590213) internal successors, (37608), 20112 states have internal predecessors, (37608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:07,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20113 states to 20113 states and 37608 transitions. [2022-01-10 23:46:07,001 INFO L78 Accepts]: Start accepts. Automaton has 20113 states and 37608 transitions. Word has length 64 [2022-01-10 23:46:07,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:07,003 INFO L470 AbstractCegarLoop]: Abstraction has 20113 states and 37608 transitions. [2022-01-10 23:46:07,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:07,003 INFO L276 IsEmpty]: Start isEmpty. Operand 20113 states and 37608 transitions. [2022-01-10 23:46:07,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-10 23:46:07,008 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:07,008 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] [2022-01-10 23:46:07,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:46:07,008 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:07,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:07,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1973142748, now seen corresponding path program 1 times [2022-01-10 23:46:07,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:07,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117305091] [2022-01-10 23:46:07,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:07,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:07,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:07,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:07,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:07,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117305091] [2022-01-10 23:46:07,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117305091] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:07,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:07,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:07,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340059027] [2022-01-10 23:46:07,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:07,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:07,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:07,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:07,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:07,088 INFO L87 Difference]: Start difference. First operand 20113 states and 37608 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:07,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:07,836 INFO L93 Difference]: Finished difference Result 52696 states and 98543 transitions. [2022-01-10 23:46:07,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:07,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 65 [2022-01-10 23:46:07,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:07,949 INFO L225 Difference]: With dead ends: 52696 [2022-01-10 23:46:07,949 INFO L226 Difference]: Without dead ends: 38206 [2022-01-10 23:46:07,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:07,988 INFO L933 BasicCegarLoop]: 6747 mSDtfsCounter, 6670 mSDsluCounter, 4570 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6670 SdHoareTripleChecker+Valid, 11317 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:07,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6670 Valid, 11317 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:46:08,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38206 states. [2022-01-10 23:46:08,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38206 to 38200. [2022-01-10 23:46:09,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38200 states, 38195 states have (on average 1.8705589736876556) internal successors, (71446), 38199 states have internal predecessors, (71446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:09,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38200 states to 38200 states and 71446 transitions. [2022-01-10 23:46:09,380 INFO L78 Accepts]: Start accepts. Automaton has 38200 states and 71446 transitions. Word has length 65 [2022-01-10 23:46:09,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:09,380 INFO L470 AbstractCegarLoop]: Abstraction has 38200 states and 71446 transitions. [2022-01-10 23:46:09,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:09,381 INFO L276 IsEmpty]: Start isEmpty. Operand 38200 states and 71446 transitions. [2022-01-10 23:46:09,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 23:46:09,385 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:09,385 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] [2022-01-10 23:46:09,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:46:09,386 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:09,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:09,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1037903697, now seen corresponding path program 1 times [2022-01-10 23:46:09,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:09,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779380528] [2022-01-10 23:46:09,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:09,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:09,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:09,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:09,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779380528] [2022-01-10 23:46:09,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779380528] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:09,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:09,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:09,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018399685] [2022-01-10 23:46:09,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:09,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:09,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:09,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:09,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:09,477 INFO L87 Difference]: Start difference. First operand 38200 states and 71446 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:10,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:10,554 INFO L93 Difference]: Finished difference Result 102312 states and 191339 transitions. [2022-01-10 23:46:10,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:10,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2022-01-10 23:46:10,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:10,780 INFO L225 Difference]: With dead ends: 102312 [2022-01-10 23:46:10,780 INFO L226 Difference]: Without dead ends: 73416 [2022-01-10 23:46:10,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:10,844 INFO L933 BasicCegarLoop]: 6748 mSDtfsCounter, 6669 mSDsluCounter, 4573 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6669 SdHoareTripleChecker+Valid, 11321 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:10,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6669 Valid, 11321 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:46:10,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73416 states. [2022-01-10 23:46:12,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73416 to 73408. [2022-01-10 23:46:12,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73408 states, 73403 states have (on average 1.8703050284048335) internal successors, (137286), 73407 states have internal predecessors, (137286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:12,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73408 states to 73408 states and 137286 transitions. [2022-01-10 23:46:12,572 INFO L78 Accepts]: Start accepts. Automaton has 73408 states and 137286 transitions. Word has length 66 [2022-01-10 23:46:12,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:12,574 INFO L470 AbstractCegarLoop]: Abstraction has 73408 states and 137286 transitions. [2022-01-10 23:46:12,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:12,574 INFO L276 IsEmpty]: Start isEmpty. Operand 73408 states and 137286 transitions. [2022-01-10 23:46:12,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 23:46:12,606 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:12,606 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:12,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:46:12,607 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)] === [2022-01-10 23:46:12,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:12,607 INFO L85 PathProgramCache]: Analyzing trace with hash -864949528, now seen corresponding path program 1 times [2022-01-10 23:46:12,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:12,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713954904] [2022-01-10 23:46:12,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:12,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:12,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:12,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:12,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713954904] [2022-01-10 23:46:12,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713954904] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:12,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:12,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:12,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439913413] [2022-01-10 23:46:12,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:12,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:12,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:12,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:12,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:12,713 INFO L87 Difference]: Start difference. First operand 73408 states and 137286 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:14,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:14,875 INFO L93 Difference]: Finished difference Result 149175 states and 278923 transitions. [2022-01-10 23:46:14,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:14,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 108 [2022-01-10 23:46:14,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:15,110 INFO L225 Difference]: With dead ends: 149175 [2022-01-10 23:46:15,111 INFO L226 Difference]: Without dead ends: 77292 [2022-01-10 23:46:15,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:15,224 INFO L933 BasicCegarLoop]: 8376 mSDtfsCounter, 4669 mSDsluCounter, 4321 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4669 SdHoareTripleChecker+Valid, 12697 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:15,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4669 Valid, 12697 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 23:46:15,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77292 states. [2022-01-10 23:46:16,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77292 to 73408. [2022-01-10 23:46:16,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73408 states, 73403 states have (on average 1.8518452924267401) internal successors, (135931), 73407 states have internal predecessors, (135931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:16,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73408 states to 73408 states and 135931 transitions. [2022-01-10 23:46:16,887 INFO L78 Accepts]: Start accepts. Automaton has 73408 states and 135931 transitions. Word has length 108 [2022-01-10 23:46:16,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:16,888 INFO L470 AbstractCegarLoop]: Abstraction has 73408 states and 135931 transitions. [2022-01-10 23:46:16,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:16,888 INFO L276 IsEmpty]: Start isEmpty. Operand 73408 states and 135931 transitions. [2022-01-10 23:46:16,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 23:46:16,908 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:16,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:16,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:46:16,909 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)] === [2022-01-10 23:46:16,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:16,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1990730798, now seen corresponding path program 1 times [2022-01-10 23:46:16,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:16,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161290868] [2022-01-10 23:46:16,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:16,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:16,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:16,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:16,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161290868] [2022-01-10 23:46:16,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161290868] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:16,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:16,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:16,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308275181] [2022-01-10 23:46:16,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:16,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:16,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:16,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:16,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:16,975 INFO L87 Difference]: Start difference. First operand 73408 states and 135931 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:19,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:19,033 INFO L93 Difference]: Finished difference Result 151126 states and 279922 transitions. [2022-01-10 23:46:19,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:19,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 113 [2022-01-10 23:46:19,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:19,188 INFO L225 Difference]: With dead ends: 151126 [2022-01-10 23:46:19,189 INFO L226 Difference]: Without dead ends: 80529 [2022-01-10 23:46:19,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:19,264 INFO L933 BasicCegarLoop]: 8882 mSDtfsCounter, 4394 mSDsluCounter, 4639 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4394 SdHoareTripleChecker+Valid, 13521 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:19,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4394 Valid, 13521 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 23:46:19,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80529 states. [2022-01-10 23:46:20,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80529 to 73408. [2022-01-10 23:46:20,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73408 states, 73403 states have (on average 1.8359740065119954) internal successors, (134766), 73407 states have internal predecessors, (134766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:20,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73408 states to 73408 states and 134766 transitions. [2022-01-10 23:46:20,915 INFO L78 Accepts]: Start accepts. Automaton has 73408 states and 134766 transitions. Word has length 113 [2022-01-10 23:46:20,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:20,915 INFO L470 AbstractCegarLoop]: Abstraction has 73408 states and 134766 transitions. [2022-01-10 23:46:20,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:20,916 INFO L276 IsEmpty]: Start isEmpty. Operand 73408 states and 134766 transitions. [2022-01-10 23:46:20,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-10 23:46:20,939 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:20,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:20,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:46:20,939 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)] === [2022-01-10 23:46:20,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:20,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1382374305, now seen corresponding path program 1 times [2022-01-10 23:46:20,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:20,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657605878] [2022-01-10 23:46:20,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:20,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:21,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:21,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:21,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657605878] [2022-01-10 23:46:21,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657605878] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:21,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:21,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:21,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359378405] [2022-01-10 23:46:21,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:21,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:21,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:21,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:21,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:21,013 INFO L87 Difference]: Start difference. First operand 73408 states and 134766 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:23,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:23,011 INFO L93 Difference]: Finished difference Result 152750 states and 280854 transitions. [2022-01-10 23:46:23,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:23,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 117 [2022-01-10 23:46:23,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:23,161 INFO L225 Difference]: With dead ends: 152750 [2022-01-10 23:46:23,162 INFO L226 Difference]: Without dead ends: 84599 [2022-01-10 23:46:23,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:23,211 INFO L933 BasicCegarLoop]: 9280 mSDtfsCounter, 4241 mSDsluCounter, 4957 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4241 SdHoareTripleChecker+Valid, 14237 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:23,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4241 Valid, 14237 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 23:46:23,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84599 states. [2022-01-10 23:46:24,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84599 to 73408. [2022-01-10 23:46:24,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73408 states, 73403 states have (on average 1.8233723417299021) internal successors, (133841), 73407 states have internal predecessors, (133841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:25,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73408 states to 73408 states and 133841 transitions. [2022-01-10 23:46:25,047 INFO L78 Accepts]: Start accepts. Automaton has 73408 states and 133841 transitions. Word has length 117 [2022-01-10 23:46:25,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:25,048 INFO L470 AbstractCegarLoop]: Abstraction has 73408 states and 133841 transitions. [2022-01-10 23:46:25,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:25,048 INFO L276 IsEmpty]: Start isEmpty. Operand 73408 states and 133841 transitions. [2022-01-10 23:46:25,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 23:46:25,067 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:25,067 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:25,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 23:46:25,067 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:25,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:25,068 INFO L85 PathProgramCache]: Analyzing trace with hash -895181700, now seen corresponding path program 1 times [2022-01-10 23:46:25,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:25,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482977390] [2022-01-10 23:46:25,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:25,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:25,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:25,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:25,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482977390] [2022-01-10 23:46:25,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482977390] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:25,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:25,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:25,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861318918] [2022-01-10 23:46:25,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:25,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:25,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:25,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:25,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:25,143 INFO L87 Difference]: Start difference. First operand 73408 states and 133841 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:27,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:27,938 INFO L93 Difference]: Finished difference Result 194442 states and 356574 transitions. [2022-01-10 23:46:27,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:27,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 120 [2022-01-10 23:46:27,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:28,209 INFO L225 Difference]: With dead ends: 194442 [2022-01-10 23:46:28,210 INFO L226 Difference]: Without dead ends: 129416 [2022-01-10 23:46:28,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:28,276 INFO L933 BasicCegarLoop]: 10161 mSDtfsCounter, 3976 mSDsluCounter, 5700 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3976 SdHoareTripleChecker+Valid, 15861 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:28,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3976 Valid, 15861 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 23:46:28,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129416 states. [2022-01-10 23:46:30,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129416 to 73093. [2022-01-10 23:46:30,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73093 states, 73088 states have (on average 1.8139913528896672) internal successors, (132581), 73092 states have internal predecessors, (132581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:30,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73093 states to 73093 states and 132581 transitions. [2022-01-10 23:46:30,360 INFO L78 Accepts]: Start accepts. Automaton has 73093 states and 132581 transitions. Word has length 120 [2022-01-10 23:46:30,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:30,361 INFO L470 AbstractCegarLoop]: Abstraction has 73093 states and 132581 transitions. [2022-01-10 23:46:30,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:30,361 INFO L276 IsEmpty]: Start isEmpty. Operand 73093 states and 132581 transitions. [2022-01-10 23:46:30,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 23:46:30,379 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:30,379 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:30,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 23:46:30,380 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)] === [2022-01-10 23:46:30,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:30,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1072536930, now seen corresponding path program 1 times [2022-01-10 23:46:30,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:30,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666701510] [2022-01-10 23:46:30,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:30,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:30,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:30,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:30,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666701510] [2022-01-10 23:46:30,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666701510] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:30,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:30,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:30,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033312098] [2022-01-10 23:46:30,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:30,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:30,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:30,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:30,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:30,445 INFO L87 Difference]: Start difference. First operand 73093 states and 132581 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:32,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:32,577 INFO L93 Difference]: Finished difference Result 150064 states and 273815 transitions. [2022-01-10 23:46:32,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:32,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 121 [2022-01-10 23:46:32,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:32,735 INFO L225 Difference]: With dead ends: 150064 [2022-01-10 23:46:32,735 INFO L226 Difference]: Without dead ends: 89039 [2022-01-10 23:46:32,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:32,795 INFO L933 BasicCegarLoop]: 9718 mSDtfsCounter, 3700 mSDsluCounter, 5593 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3700 SdHoareTripleChecker+Valid, 15311 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:32,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3700 Valid, 15311 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 23:46:32,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89039 states. [2022-01-10 23:46:34,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89039 to 73093. [2022-01-10 23:46:34,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73093 states, 73088 states have (on average 1.805234785464098) internal successors, (131941), 73092 states have internal predecessors, (131941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:34,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73093 states to 73093 states and 131941 transitions. [2022-01-10 23:46:34,667 INFO L78 Accepts]: Start accepts. Automaton has 73093 states and 131941 transitions. Word has length 121 [2022-01-10 23:46:34,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:34,667 INFO L470 AbstractCegarLoop]: Abstraction has 73093 states and 131941 transitions. [2022-01-10 23:46:34,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:34,667 INFO L276 IsEmpty]: Start isEmpty. Operand 73093 states and 131941 transitions. [2022-01-10 23:46:34,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 23:46:34,684 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:34,685 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:34,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 23:46:34,685 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:34,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:34,685 INFO L85 PathProgramCache]: Analyzing trace with hash 647847592, now seen corresponding path program 1 times [2022-01-10 23:46:34,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:34,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748284222] [2022-01-10 23:46:34,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:34,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:34,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:34,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:34,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748284222] [2022-01-10 23:46:34,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748284222] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:34,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:34,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:46:34,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117175793] [2022-01-10 23:46:34,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:34,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:46:34,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:34,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:46:34,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:46:34,779 INFO L87 Difference]: Start difference. First operand 73093 states and 131941 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:40,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:40,461 INFO L93 Difference]: Finished difference Result 365301 states and 659507 transitions. [2022-01-10 23:46:40,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 23:46:40,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 122 [2022-01-10 23:46:40,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:41,270 INFO L225 Difference]: With dead ends: 365301 [2022-01-10 23:46:41,270 INFO L226 Difference]: Without dead ends: 292231 [2022-01-10 23:46:41,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:46:41,379 INFO L933 BasicCegarLoop]: 19583 mSDtfsCounter, 26084 mSDsluCounter, 32641 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26084 SdHoareTripleChecker+Valid, 52224 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:41,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26084 Valid, 52224 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:46:41,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292231 states. [2022-01-10 23:46:44,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292231 to 73096. [2022-01-10 23:46:44,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73096 states, 73091 states have (on average 1.8052017348237128) internal successors, (131944), 73095 states have internal predecessors, (131944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:44,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73096 states to 73096 states and 131944 transitions. [2022-01-10 23:46:44,871 INFO L78 Accepts]: Start accepts. Automaton has 73096 states and 131944 transitions. Word has length 122 [2022-01-10 23:46:44,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:44,871 INFO L470 AbstractCegarLoop]: Abstraction has 73096 states and 131944 transitions. [2022-01-10 23:46:44,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:44,871 INFO L276 IsEmpty]: Start isEmpty. Operand 73096 states and 131944 transitions. [2022-01-10 23:46:44,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 23:46:44,887 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:44,887 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:44,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 23:46:44,888 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:44,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:44,888 INFO L85 PathProgramCache]: Analyzing trace with hash 128555305, now seen corresponding path program 1 times [2022-01-10 23:46:44,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:44,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743834341] [2022-01-10 23:46:44,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:44,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:44,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:44,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:44,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743834341] [2022-01-10 23:46:44,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743834341] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:44,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:44,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:46:44,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305354090] [2022-01-10 23:46:44,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:44,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 23:46:44,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:44,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 23:46:44,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:46:44,991 INFO L87 Difference]: Start difference. First operand 73096 states and 131944 transitions. Second operand has 8 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:47,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:47,335 INFO L93 Difference]: Finished difference Result 146145 states and 263831 transitions. [2022-01-10 23:46:47,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:47,340 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 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 122 [2022-01-10 23:46:47,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:47,458 INFO L225 Difference]: With dead ends: 146145 [2022-01-10 23:46:47,458 INFO L226 Difference]: Without dead ends: 73066 [2022-01-10 23:46:47,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:46:47,507 INFO L933 BasicCegarLoop]: 6527 mSDtfsCounter, 13052 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13052 SdHoareTripleChecker+Valid, 6534 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:47,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13052 Valid, 6534 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:46:47,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73066 states.