/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec9_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:08:45,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:08:45,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:08:45,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:08:45,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:08:45,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:08:45,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:08:45,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:08:45,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:08:45,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:08:45,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:08:45,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:08:45,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:08:45,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:08:45,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:08:45,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:08:45,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:08:45,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:08:45,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:08:45,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:08:45,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:08:45,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:08:45,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:08:45,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:08:45,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:08:45,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:08:45,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:08:45,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:08:45,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:08:45,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:08:45,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:08:45,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:08:45,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:08:45,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:08:45,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:08:45,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:08:45,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:08:45,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:08:45,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:08:45,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:08:45,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:08:45,831 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:08:45,862 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:08:45,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:08:45,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:08:45,863 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:08:45,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:08:45,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:08:45,865 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:08:45,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:08:45,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:08:45,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:08:45,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:08:45,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:08:45,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:08:45,866 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:08:45,866 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:08:45,867 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:08:45,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:08:45,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:08:45,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:08:45,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:08:45,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:08:45,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:08:45,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:08:45,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:08:45,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:08:45,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:08:45,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:08:45,869 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:08:45,869 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:08:45,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:08:45,869 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:08:45,869 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:08:45,870 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:08:45,870 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:08:46,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:08:46,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:08:46,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:08:46,121 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:08:46,123 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:08:46,124 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec9_product28.cil.c [2022-01-10 12:08:46,180 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0419c0b1/5ecd42d639c44ba88d0a85ff28df1a8f/FLAG02b79d664 [2022-01-10 12:08:46,720 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:08:46,721 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product28.cil.c [2022-01-10 12:08:46,739 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0419c0b1/5ecd42d639c44ba88d0a85ff28df1a8f/FLAG02b79d664 [2022-01-10 12:08:47,153 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0419c0b1/5ecd42d639c44ba88d0a85ff28df1a8f [2022-01-10 12:08:47,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:08:47,156 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:08:47,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:08:47,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:08:47,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:08:47,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:08:47" (1/1) ... [2022-01-10 12:08:47,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b7607a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:47, skipping insertion in model container [2022-01-10 12:08:47,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:08:47" (1/1) ... [2022-01-10 12:08:47,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:08:47,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:08:47,708 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_spec9_product28.cil.c[73050,73063] [2022-01-10 12:08:47,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:08:47,725 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:08:47,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:08:47,855 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_spec9_product28.cil.c[73050,73063] [2022-01-10 12:08:47,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:08:47,861 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:08:47,929 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_spec9_product28.cil.c[73050,73063] [2022-01-10 12:08:47,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:08:47,953 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:08:47,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:47 WrapperNode [2022-01-10 12:08:47,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:08:47,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:08:47,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:08:47,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:08:47,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:47" (1/1) ... [2022-01-10 12:08:48,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:47" (1/1) ... [2022-01-10 12:08:48,202 INFO L137 Inliner]: procedures = 99, calls = 345, calls flagged for inlining = 197, calls inlined = 616, statements flattened = 18362 [2022-01-10 12:08:48,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:08:48,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:08:48,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:08:48,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:08:48,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:47" (1/1) ... [2022-01-10 12:08:48,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:47" (1/1) ... [2022-01-10 12:08:48,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:47" (1/1) ... [2022-01-10 12:08:48,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:47" (1/1) ... [2022-01-10 12:08:48,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:47" (1/1) ... [2022-01-10 12:08:48,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:47" (1/1) ... [2022-01-10 12:08:48,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:47" (1/1) ... [2022-01-10 12:08:48,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:08:48,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:08:48,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:08:48,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:08:48,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:47" (1/1) ... [2022-01-10 12:08:48,635 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:08:48,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:08:48,665 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 12:08:48,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 12:08:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:08:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:08:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:08:48,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:08:48,930 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:08:48,932 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:08:55,995 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:08:56,060 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:08:56,061 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:08:56,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:08:56 BoogieIcfgContainer [2022-01-10 12:08:56,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:08:56,071 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:08:56,071 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:08:56,073 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:08:56,075 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:08:56" (1/1) ... [2022-01-10 12:08:57,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:08:57 BasicIcfg [2022-01-10 12:08:57,374 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:08:57,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:08:57,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:08:57,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:08:57,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:08:47" (1/4) ... [2022-01-10 12:08:57,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee9a84b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:08:57, skipping insertion in model container [2022-01-10 12:08:57,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:08:47" (2/4) ... [2022-01-10 12:08:57,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee9a84b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:08:57, skipping insertion in model container [2022-01-10 12:08:57,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:08:56" (3/4) ... [2022-01-10 12:08:57,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee9a84b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:08:57, skipping insertion in model container [2022-01-10 12:08:57,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:08:57" (4/4) ... [2022-01-10 12:08:57,382 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product28.cil.cTransformedIcfg [2022-01-10 12:08:57,386 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:08:57,387 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 12:08:57,456 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:08:57,462 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 12:08:57,463 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 12:08:57,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 5178 states, 5172 states have (on average 1.864075792730085) internal successors, (9641), 5177 states have internal predecessors, (9641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:08:57,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-10 12:08:57,564 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:08:57,565 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] [2022-01-10 12:08:57,565 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 12:08:57,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:08:57,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1890159463, now seen corresponding path program 1 times [2022-01-10 12:08:57,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:08:57,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308975634] [2022-01-10 12:08:57,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:08:57,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:08:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:08:58,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:08:58,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:08:58,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308975634] [2022-01-10 12:08:58,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308975634] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:08:58,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:08:58,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:08:58,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372129178] [2022-01-10 12:08:58,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:08:58,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:08:58,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:08:58,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:08:58,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:08:58,095 INFO L87 Difference]: Start difference. First operand has 5178 states, 5172 states have (on average 1.864075792730085) internal successors, (9641), 5177 states have internal predecessors, (9641), 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 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:08:58,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:08:58,415 INFO L93 Difference]: Finished difference Result 10341 states and 19259 transitions. [2022-01-10 12:08:58,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:08:58,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 32 [2022-01-10 12:08:58,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:08:58,459 INFO L225 Difference]: With dead ends: 10341 [2022-01-10 12:08:58,460 INFO L226 Difference]: Without dead ends: 5167 [2022-01-10 12:08:58,475 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 12:08:58,489 INFO L933 BasicCegarLoop]: 9620 mSDtfsCounter, 9615 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9615 SdHoareTripleChecker+Valid, 9631 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 12:08:58,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9615 Valid, 9631 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:08:58,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5167 states. [2022-01-10 12:08:58,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5167 to 5167. [2022-01-10 12:08:58,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5162 states have (on average 1.8630375823324292) internal successors, (9617), 5166 states have internal predecessors, (9617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:08:58,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 9617 transitions. [2022-01-10 12:08:58,698 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 9617 transitions. Word has length 32 [2022-01-10 12:08:58,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:08:58,698 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 9617 transitions. [2022-01-10 12:08:58,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:08:58,699 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 9617 transitions. [2022-01-10 12:08:58,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-10 12:08:58,701 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:08:58,702 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] [2022-01-10 12:08:58,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:08:58,702 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 12:08:58,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:08:58,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1198557542, now seen corresponding path program 1 times [2022-01-10 12:08:58,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:08:58,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942770186] [2022-01-10 12:08:58,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:08:58,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:08:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:08:58,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:08:58,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:08:58,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942770186] [2022-01-10 12:08:58,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942770186] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:08:58,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:08:58,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:08:58,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614217652] [2022-01-10 12:08:58,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:08:58,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:08:58,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:08:58,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:08:58,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:08:58,831 INFO L87 Difference]: Start difference. First operand 5167 states and 9617 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:08:59,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:08:59,048 INFO L93 Difference]: Finished difference Result 10284 states and 19148 transitions. [2022-01-10 12:08:59,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:08:59,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2022-01-10 12:08:59,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:08:59,070 INFO L225 Difference]: With dead ends: 10284 [2022-01-10 12:08:59,071 INFO L226 Difference]: Without dead ends: 5167 [2022-01-10 12:08:59,083 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 12:08:59,084 INFO L933 BasicCegarLoop]: 9557 mSDtfsCounter, 9575 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9575 SdHoareTripleChecker+Valid, 9572 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 12:08:59,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9575 Valid, 9572 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:08:59,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5167 states. [2022-01-10 12:08:59,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5167 to 5167. [2022-01-10 12:08:59,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5162 states have (on average 1.8581944982564897) internal successors, (9592), 5166 states have internal predecessors, (9592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:08:59,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 9592 transitions. [2022-01-10 12:08:59,234 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 9592 transitions. Word has length 39 [2022-01-10 12:08:59,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:08:59,235 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 9592 transitions. [2022-01-10 12:08:59,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:08:59,238 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 9592 transitions. [2022-01-10 12:08:59,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-10 12:08:59,247 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:08:59,247 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] [2022-01-10 12:08:59,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:08:59,248 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 12:08:59,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:08:59,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1758007513, now seen corresponding path program 1 times [2022-01-10 12:08:59,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:08:59,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889776154] [2022-01-10 12:08:59,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:08:59,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:08:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:08:59,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:08:59,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:08:59,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889776154] [2022-01-10 12:08:59,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889776154] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:08:59,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:08:59,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:08:59,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898131568] [2022-01-10 12:08:59,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:08:59,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:08:59,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:08:59,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:08:59,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:08:59,362 INFO L87 Difference]: Start difference. First operand 5167 states and 9592 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:08:59,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:08:59,947 INFO L93 Difference]: Finished difference Result 13321 states and 24812 transitions. [2022-01-10 12:08:59,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:08:59,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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 42 [2022-01-10 12:08:59,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:08:59,986 INFO L225 Difference]: With dead ends: 13321 [2022-01-10 12:08:59,987 INFO L226 Difference]: Without dead ends: 8894 [2022-01-10 12:08:59,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:09:00,002 INFO L933 BasicCegarLoop]: 9796 mSDtfsCounter, 9320 mSDsluCounter, 7066 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9320 SdHoareTripleChecker+Valid, 16862 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:09:00,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9320 Valid, 16862 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:09:00,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8894 states. [2022-01-10 12:09:00,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8894 to 8877. [2022-01-10 12:09:00,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8872 states have (on average 1.8609107303877368) internal successors, (16510), 8876 states have internal predecessors, (16510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:09:00,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 16510 transitions. [2022-01-10 12:09:00,277 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 16510 transitions. Word has length 42 [2022-01-10 12:09:00,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:09:00,278 INFO L470 AbstractCegarLoop]: Abstraction has 8877 states and 16510 transitions. [2022-01-10 12:09:00,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:09:00,280 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 16510 transitions. [2022-01-10 12:09:00,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-10 12:09:00,281 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:09:00,281 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] [2022-01-10 12:09:00,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:09:00,283 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:09:00,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:09:00,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1216317730, now seen corresponding path program 1 times [2022-01-10 12:09:00,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:09:00,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533774372] [2022-01-10 12:09:00,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:09:00,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:09:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:09:00,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:09:00,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:09:00,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533774372] [2022-01-10 12:09:00,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533774372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:09:00,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:09:00,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:09:00,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348789730] [2022-01-10 12:09:00,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:09:00,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:09:00,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:09:00,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:09:00,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:09:00,384 INFO L87 Difference]: Start difference. First operand 8877 states and 16510 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:09:00,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:09:00,892 INFO L93 Difference]: Finished difference Result 24253 states and 45200 transitions. [2022-01-10 12:09:00,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:09:00,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 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 43 [2022-01-10 12:09:00,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:09:00,949 INFO L225 Difference]: With dead ends: 24253 [2022-01-10 12:09:00,949 INFO L226 Difference]: Without dead ends: 16118 [2022-01-10 12:09:00,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:09:00,970 INFO L933 BasicCegarLoop]: 9372 mSDtfsCounter, 9197 mSDsluCounter, 7066 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9197 SdHoareTripleChecker+Valid, 16438 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:09:00,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9197 Valid, 16438 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:09:00,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16118 states. [2022-01-10 12:09:01,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16118 to 16101. [2022-01-10 12:09:01,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16101 states, 16096 states have (on average 1.8618290258449304) internal successors, (29968), 16100 states have internal predecessors, (29968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:09:01,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16101 states to 16101 states and 29968 transitions. [2022-01-10 12:09:01,503 INFO L78 Accepts]: Start accepts. Automaton has 16101 states and 29968 transitions. Word has length 43 [2022-01-10 12:09:01,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:09:01,504 INFO L470 AbstractCegarLoop]: Abstraction has 16101 states and 29968 transitions. [2022-01-10 12:09:01,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:09:01,504 INFO L276 IsEmpty]: Start isEmpty. Operand 16101 states and 29968 transitions. [2022-01-10 12:09:01,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 12:09:01,505 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:09:01,505 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] [2022-01-10 12:09:01,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:09:01,505 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:09:01,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:09:01,506 INFO L85 PathProgramCache]: Analyzing trace with hash 74271706, now seen corresponding path program 1 times [2022-01-10 12:09:01,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:09:01,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899745694] [2022-01-10 12:09:01,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:09:01,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:09:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:09:01,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:09:01,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:09:01,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899745694] [2022-01-10 12:09:01,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899745694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:09:01,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:09:01,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:09:01,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084209607] [2022-01-10 12:09:01,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:09:01,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:09:01,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:09:01,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:09:01,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:09:01,589 INFO L87 Difference]: Start difference. First operand 16101 states and 29968 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:09:02,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:09:02,377 INFO L93 Difference]: Finished difference Result 45467 states and 84710 transitions. [2022-01-10 12:09:02,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:09:02,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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 44 [2022-01-10 12:09:02,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:09:02,481 INFO L225 Difference]: With dead ends: 45467 [2022-01-10 12:09:02,482 INFO L226 Difference]: Without dead ends: 30110 [2022-01-10 12:09:02,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:09:02,510 INFO L933 BasicCegarLoop]: 9256 mSDtfsCounter, 9078 mSDsluCounter, 7066 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9078 SdHoareTripleChecker+Valid, 16322 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:09:02,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9078 Valid, 16322 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:09:02,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30110 states. [2022-01-10 12:09:03,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30110 to 30093. [2022-01-10 12:09:03,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30093 states, 30088 states have (on average 1.8609412390321722) internal successors, (55992), 30092 states have internal predecessors, (55992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:09:03,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30093 states to 30093 states and 55992 transitions. [2022-01-10 12:09:03,452 INFO L78 Accepts]: Start accepts. Automaton has 30093 states and 55992 transitions. Word has length 44 [2022-01-10 12:09:03,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:09:03,455 INFO L470 AbstractCegarLoop]: Abstraction has 30093 states and 55992 transitions. [2022-01-10 12:09:03,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:09:03,456 INFO L276 IsEmpty]: Start isEmpty. Operand 30093 states and 55992 transitions. [2022-01-10 12:09:03,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 12:09:03,457 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:09:03,457 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] [2022-01-10 12:09:03,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:09:03,458 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:09:03,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:09:03,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1059970672, now seen corresponding path program 1 times [2022-01-10 12:09:03,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:09:03,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158783728] [2022-01-10 12:09:03,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:09:03,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:09:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:09:03,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:09:03,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:09:03,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158783728] [2022-01-10 12:09:03,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158783728] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:09:03,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:09:03,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:09:03,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128132554] [2022-01-10 12:09:03,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:09:03,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:09:03,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:09:03,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:09:03,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:09:03,529 INFO L87 Difference]: Start difference. First operand 30093 states and 55992 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:09:04,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:09:04,631 INFO L93 Difference]: Finished difference Result 86465 states and 160926 transitions. [2022-01-10 12:09:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:09:04,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 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 45 [2022-01-10 12:09:04,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:09:04,820 INFO L225 Difference]: With dead ends: 86465 [2022-01-10 12:09:04,821 INFO L226 Difference]: Without dead ends: 57118 [2022-01-10 12:09:04,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:09:04,867 INFO L933 BasicCegarLoop]: 9142 mSDtfsCounter, 8963 mSDsluCounter, 7066 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8963 SdHoareTripleChecker+Valid, 16208 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:09:04,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8963 Valid, 16208 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:09:04,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57118 states. [2022-01-10 12:09:06,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57118 to 57101. [2022-01-10 12:09:06,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57101 states, 57096 states have (on average 1.8586941291859325) internal successors, (106124), 57100 states have internal predecessors, (106124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:09:06,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57101 states to 57101 states and 106124 transitions. [2022-01-10 12:09:06,650 INFO L78 Accepts]: Start accepts. Automaton has 57101 states and 106124 transitions. Word has length 45 [2022-01-10 12:09:06,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:09:06,650 INFO L470 AbstractCegarLoop]: Abstraction has 57101 states and 106124 transitions. [2022-01-10 12:09:06,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:09:06,650 INFO L276 IsEmpty]: Start isEmpty. Operand 57101 states and 106124 transitions. [2022-01-10 12:09:06,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 12:09:06,652 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:09:06,652 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] [2022-01-10 12:09:06,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:09:06,653 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:09:06,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:09:06,653 INFO L85 PathProgramCache]: Analyzing trace with hash 332660201, now seen corresponding path program 1 times [2022-01-10 12:09:06,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:09:06,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130374917] [2022-01-10 12:09:06,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:09:06,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:09:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:09:06,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:09:06,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:09:06,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130374917] [2022-01-10 12:09:06,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130374917] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:09:06,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:09:06,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:09:06,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989023983] [2022-01-10 12:09:06,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:09:06,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:09:06,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:09:06,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:09:06,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:09:06,858 INFO L87 Difference]: Start difference. First operand 57101 states and 106124 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:09:08,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:09:08,414 INFO L93 Difference]: Finished difference Result 165471 states and 307486 transitions. [2022-01-10 12:09:08,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:09:08,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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 46 [2022-01-10 12:09:08,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:09:08,898 INFO L225 Difference]: With dead ends: 165471 [2022-01-10 12:09:08,898 INFO L226 Difference]: Without dead ends: 109118 [2022-01-10 12:09:08,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:09:08,962 INFO L933 BasicCegarLoop]: 9032 mSDtfsCounter, 8852 mSDsluCounter, 7066 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8852 SdHoareTripleChecker+Valid, 16098 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:09:08,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8852 Valid, 16098 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:09:09,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109118 states. [2022-01-10 12:09:11,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109118 to 109101. [2022-01-10 12:09:11,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109101 states, 109096 states have (on average 1.855503409840874) internal successors, (202428), 109100 states have internal predecessors, (202428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:09:11,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109101 states to 109101 states and 202428 transitions. [2022-01-10 12:09:11,752 INFO L78 Accepts]: Start accepts. Automaton has 109101 states and 202428 transitions. Word has length 46 [2022-01-10 12:09:11,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:09:11,752 INFO L470 AbstractCegarLoop]: Abstraction has 109101 states and 202428 transitions. [2022-01-10 12:09:11,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:09:11,752 INFO L276 IsEmpty]: Start isEmpty. Operand 109101 states and 202428 transitions. [2022-01-10 12:09:11,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 12:09:11,753 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:09:11,754 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] [2022-01-10 12:09:11,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:09:11,755 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 12:09:11,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:09:11,755 INFO L85 PathProgramCache]: Analyzing trace with hash -642437736, now seen corresponding path program 1 times [2022-01-10 12:09:11,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:09:11,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123772979] [2022-01-10 12:09:11,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:09:11,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:09:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:09:11,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:09:11,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:09:11,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123772979] [2022-01-10 12:09:11,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123772979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:09:11,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:09:11,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:09:11,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959958414] [2022-01-10 12:09:11,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:09:11,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:09:11,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:09:11,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:09:11,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:09:11,833 INFO L87 Difference]: Start difference. First operand 109101 states and 202428 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:09:15,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:09:15,182 INFO L93 Difference]: Finished difference Result 317373 states and 588606 transitions. [2022-01-10 12:09:15,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:09:15,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 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 47 [2022-01-10 12:09:15,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:09:15,875 INFO L225 Difference]: With dead ends: 317373 [2022-01-10 12:09:15,875 INFO L226 Difference]: Without dead ends: 209022 [2022-01-10 12:09:15,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:09:15,988 INFO L933 BasicCegarLoop]: 8926 mSDtfsCounter, 8745 mSDsluCounter, 7066 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8745 SdHoareTripleChecker+Valid, 15992 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:09:15,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8745 Valid, 15992 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:09:16,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209022 states. [2022-01-10 12:09:19,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209022 to 209005. [2022-01-10 12:09:20,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209005 states, 209000 states have (on average 1.8516363636363637) internal successors, (386992), 209004 states have internal predecessors, (386992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:09:20,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209005 states to 209005 states and 386992 transitions. [2022-01-10 12:09:20,670 INFO L78 Accepts]: Start accepts. Automaton has 209005 states and 386992 transitions. Word has length 47 [2022-01-10 12:09:20,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:09:20,671 INFO L470 AbstractCegarLoop]: Abstraction has 209005 states and 386992 transitions. [2022-01-10 12:09:20,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:09:20,671 INFO L276 IsEmpty]: Start isEmpty. Operand 209005 states and 386992 transitions. [2022-01-10 12:09:20,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 12:09:20,672 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:09:20,672 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] [2022-01-10 12:09:20,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:09:20,672 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 12:09:20,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:09:20,672 INFO L85 PathProgramCache]: Analyzing trace with hash -513355017, now seen corresponding path program 1 times [2022-01-10 12:09:20,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:09:20,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50485665] [2022-01-10 12:09:20,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:09:20,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:09:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:09:20,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:09:20,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:09:20,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50485665] [2022-01-10 12:09:20,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50485665] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:09:20,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:09:20,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:09:20,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463633330] [2022-01-10 12:09:20,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:09:20,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:09:20,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:09:20,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:09:20,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:09:20,764 INFO L87 Difference]: Start difference. First operand 209005 states and 386992 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:09:27,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:09:27,709 INFO L93 Difference]: Finished difference Result 576307 states and 1065980 transitions. [2022-01-10 12:09:27,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:09:27,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 47 [2022-01-10 12:09:27,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:09:29,164 INFO L225 Difference]: With dead ends: 576307 [2022-01-10 12:09:29,164 INFO L226 Difference]: Without dead ends: 417058 [2022-01-10 12:09:29,408 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 12:09:29,409 INFO L933 BasicCegarLoop]: 9824 mSDtfsCounter, 8845 mSDsluCounter, 7139 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8845 SdHoareTripleChecker+Valid, 16963 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:09:29,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8845 Valid, 16963 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:09:30,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417058 states.