/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 17:55:27,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 17:55:27,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 17:55:27,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 17:55:27,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 17:55:27,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 17:55:27,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 17:55:27,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 17:55:27,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 17:55:27,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 17:55:27,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 17:55:27,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 17:55:27,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 17:55:27,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 17:55:27,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 17:55:27,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 17:55:27,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 17:55:27,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 17:55:27,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 17:55:27,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 17:55:27,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 17:55:27,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 17:55:27,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 17:55:27,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 17:55:27,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 17:55:27,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 17:55:27,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 17:55:27,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 17:55:27,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 17:55:27,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 17:55:27,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 17:55:27,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 17:55:27,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 17:55:27,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 17:55:27,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 17:55:27,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 17:55:27,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 17:55:27,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 17:55:27,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 17:55:27,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 17:55:27,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 17:55:27,852 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 17:55:27,883 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 17:55:27,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 17:55:27,884 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 17:55:27,884 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 17:55:27,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 17:55:27,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 17:55:27,885 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 17:55:27,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 17:55:27,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 17:55:27,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 17:55:27,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 17:55:27,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 17:55:27,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 17:55:27,887 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 17:55:27,887 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 17:55:27,887 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 17:55:27,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 17:55:27,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 17:55:27,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 17:55:27,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 17:55:27,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 17:55:27,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:55:27,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 17:55:27,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 17:55:27,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 17:55:27,889 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 17:55:27,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 17:55:27,889 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 17:55:27,889 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 17:55:27,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 17:55:27,889 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 17:55:27,890 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 17:55:27,890 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 17:55:27,890 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 17:55:28,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 17:55:28,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 17:55:28,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 17:55:28,101 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 17:55:28,115 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 17:55:28,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product01.cil.c [2022-01-10 17:55:28,181 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f56f02d6/d6636caa871b42b2b6ae5b507a21a7f3/FLAGd47e42d35 [2022-01-10 17:55:28,625 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 17:55:28,625 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product01.cil.c [2022-01-10 17:55:28,645 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f56f02d6/d6636caa871b42b2b6ae5b507a21a7f3/FLAGd47e42d35 [2022-01-10 17:55:28,974 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f56f02d6/d6636caa871b42b2b6ae5b507a21a7f3 [2022-01-10 17:55:28,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 17:55:28,978 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 17:55:28,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 17:55:28,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 17:55:28,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 17:55:28,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:55:28" (1/1) ... [2022-01-10 17:55:28,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f9c0cb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:28, skipping insertion in model container [2022-01-10 17:55:28,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:55:28" (1/1) ... [2022-01-10 17:55:28,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 17:55:29,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:55:29,199 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_product01.cil.c[1545,1558] [2022-01-10 17:55:29,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:55:29,471 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 17:55:29,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:55:29,490 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_product01.cil.c[1545,1558] [2022-01-10 17:55:29,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:55:29,583 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 17:55:29,592 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_product01.cil.c[1545,1558] [2022-01-10 17:55:29,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:55:29,688 INFO L208 MainTranslator]: Completed translation [2022-01-10 17:55:29,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:29 WrapperNode [2022-01-10 17:55:29,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 17:55:29,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 17:55:29,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 17:55:29,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 17:55:29,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:29" (1/1) ... [2022-01-10 17:55:29,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:29" (1/1) ... [2022-01-10 17:55:29,831 INFO L137 Inliner]: procedures = 90, calls = 328, calls flagged for inlining = 181, calls inlined = 228, statements flattened = 7559 [2022-01-10 17:55:29,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 17:55:29,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 17:55:29,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 17:55:29,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 17:55:29,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:29" (1/1) ... [2022-01-10 17:55:29,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:29" (1/1) ... [2022-01-10 17:55:29,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:29" (1/1) ... [2022-01-10 17:55:29,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:29" (1/1) ... [2022-01-10 17:55:29,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:29" (1/1) ... [2022-01-10 17:55:29,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:29" (1/1) ... [2022-01-10 17:55:29,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:29" (1/1) ... [2022-01-10 17:55:29,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 17:55:29,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 17:55:29,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 17:55:29,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 17:55:29,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:29" (1/1) ... [2022-01-10 17:55:29,975 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:55:29,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:55:29,992 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 17:55:30,019 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 17:55:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 17:55:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 17:55:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 17:55:30,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 17:55:30,163 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 17:55:30,164 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 17:55:33,185 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 17:55:33,205 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 17:55:33,205 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 17:55:33,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:55:33 BoogieIcfgContainer [2022-01-10 17:55:33,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 17:55:33,211 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 17:55:33,211 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 17:55:33,212 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 17:55:33,214 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:55:33" (1/1) ... [2022-01-10 17:55:33,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:55:33 BasicIcfg [2022-01-10 17:55:33,794 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 17:55:33,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 17:55:33,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 17:55:33,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 17:55:33,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:55:28" (1/4) ... [2022-01-10 17:55:33,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5329d0f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:55:33, skipping insertion in model container [2022-01-10 17:55:33,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:29" (2/4) ... [2022-01-10 17:55:33,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5329d0f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:55:33, skipping insertion in model container [2022-01-10 17:55:33,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:55:33" (3/4) ... [2022-01-10 17:55:33,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5329d0f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:55:33, skipping insertion in model container [2022-01-10 17:55:33,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:55:33" (4/4) ... [2022-01-10 17:55:33,799 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product01.cil.cTransformedIcfg [2022-01-10 17:55:33,802 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 17:55:33,802 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 17:55:33,836 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 17:55:33,840 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 17:55:33,840 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 17:55:33,871 INFO L276 IsEmpty]: Start isEmpty. Operand has 2284 states, 2278 states have (on average 1.87928007023705) internal successors, (4281), 2283 states have internal predecessors, (4281), 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 17:55:33,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 17:55:33,882 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:33,882 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 17:55:33,883 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 17:55:33,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:33,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1032962432, now seen corresponding path program 1 times [2022-01-10 17:55:33,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:33,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998505937] [2022-01-10 17:55:33,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:33,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:34,185 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 17:55:34,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:34,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998505937] [2022-01-10 17:55:34,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998505937] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:34,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:34,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:55:34,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113747010] [2022-01-10 17:55:34,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:34,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:55:34,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:34,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:55:34,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:55:34,230 INFO L87 Difference]: Start difference. First operand has 2284 states, 2278 states have (on average 1.87928007023705) internal successors, (4281), 2283 states have internal predecessors, (4281), 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 15.0) internal successors, (45), 3 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 17:55:34,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:55:34,381 INFO L93 Difference]: Finished difference Result 4553 states and 8539 transitions. [2022-01-10 17:55:34,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:55:34,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 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 17:55:34,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:55:34,406 INFO L225 Difference]: With dead ends: 4553 [2022-01-10 17:55:34,406 INFO L226 Difference]: Without dead ends: 2273 [2022-01-10 17:55:34,416 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 17:55:34,420 INFO L933 BasicCegarLoop]: 4260 mSDtfsCounter, 4255 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4255 SdHoareTripleChecker+Valid, 4271 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 17:55:34,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4255 Valid, 4271 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:55:34,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2022-01-10 17:55:34,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2273. [2022-01-10 17:55:34,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 2268 states have (on average 1.876984126984127) internal successors, (4257), 2272 states have internal predecessors, (4257), 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 17:55:34,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 4257 transitions. [2022-01-10 17:55:34,549 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 4257 transitions. Word has length 45 [2022-01-10 17:55:34,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:55:34,550 INFO L470 AbstractCegarLoop]: Abstraction has 2273 states and 4257 transitions. [2022-01-10 17:55:34,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 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 17:55:34,550 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 4257 transitions. [2022-01-10 17:55:34,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 17:55:34,552 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:34,552 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] [2022-01-10 17:55:34,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 17:55:34,553 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 17:55:34,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:34,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1682848821, now seen corresponding path program 1 times [2022-01-10 17:55:34,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:34,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622520198] [2022-01-10 17:55:34,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:34,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:34,668 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 17:55:34,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:34,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622520198] [2022-01-10 17:55:34,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622520198] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:34,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:34,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:55:34,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646243854] [2022-01-10 17:55:34,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:34,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:55:34,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:34,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:55:34,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:55:34,670 INFO L87 Difference]: Start difference. First operand 2273 states and 4257 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 17:55:34,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:55:34,841 INFO L93 Difference]: Finished difference Result 4496 states and 8428 transitions. [2022-01-10 17:55:34,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:55:34,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2022-01-10 17:55:34,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:55:34,852 INFO L225 Difference]: With dead ends: 4496 [2022-01-10 17:55:34,852 INFO L226 Difference]: Without dead ends: 2273 [2022-01-10 17:55:34,855 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 17:55:34,856 INFO L933 BasicCegarLoop]: 4197 mSDtfsCounter, 4215 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4215 SdHoareTripleChecker+Valid, 4212 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:55:34,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4215 Valid, 4212 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:55:34,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2022-01-10 17:55:34,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2273. [2022-01-10 17:55:34,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 2268 states have (on average 1.8659611992945326) internal successors, (4232), 2272 states have internal predecessors, (4232), 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 17:55:34,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 4232 transitions. [2022-01-10 17:55:34,911 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 4232 transitions. Word has length 52 [2022-01-10 17:55:34,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:55:34,912 INFO L470 AbstractCegarLoop]: Abstraction has 2273 states and 4232 transitions. [2022-01-10 17:55:34,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 17:55:34,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 4232 transitions. [2022-01-10 17:55:34,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 17:55:34,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:34,923 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] [2022-01-10 17:55:34,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 17:55:34,923 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 17:55:34,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:34,924 INFO L85 PathProgramCache]: Analyzing trace with hash 655416922, now seen corresponding path program 1 times [2022-01-10 17:55:34,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:34,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763203013] [2022-01-10 17:55:34,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:34,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:34,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:35,016 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 17:55:35,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:35,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763203013] [2022-01-10 17:55:35,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763203013] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:35,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:35,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:55:35,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574767004] [2022-01-10 17:55:35,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:35,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:55:35,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:35,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:55:35,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:55:35,018 INFO L87 Difference]: Start difference. First operand 2273 states and 4232 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 17:55:35,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:55:35,160 INFO L93 Difference]: Finished difference Result 5147 states and 9625 transitions. [2022-01-10 17:55:35,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:55:35,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 55 [2022-01-10 17:55:35,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:55:35,175 INFO L225 Difference]: With dead ends: 5147 [2022-01-10 17:55:35,175 INFO L226 Difference]: Without dead ends: 3987 [2022-01-10 17:55:35,182 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 17:55:35,185 INFO L933 BasicCegarLoop]: 4529 mSDtfsCounter, 4172 mSDsluCounter, 3218 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4172 SdHoareTripleChecker+Valid, 7747 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:55:35,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4172 Valid, 7747 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:55:35,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3987 states. [2022-01-10 17:55:35,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3987 to 3987. [2022-01-10 17:55:35,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3987 states, 3982 states have (on average 1.8731793068809643) internal successors, (7459), 3986 states have internal predecessors, (7459), 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 17:55:35,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3987 states to 3987 states and 7459 transitions. [2022-01-10 17:55:35,280 INFO L78 Accepts]: Start accepts. Automaton has 3987 states and 7459 transitions. Word has length 55 [2022-01-10 17:55:35,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:55:35,281 INFO L470 AbstractCegarLoop]: Abstraction has 3987 states and 7459 transitions. [2022-01-10 17:55:35,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 17:55:35,281 INFO L276 IsEmpty]: Start isEmpty. Operand 3987 states and 7459 transitions. [2022-01-10 17:55:35,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-10 17:55:35,283 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:35,283 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] [2022-01-10 17:55:35,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 17:55:35,284 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 17:55:35,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:35,284 INFO L85 PathProgramCache]: Analyzing trace with hash 275417757, now seen corresponding path program 1 times [2022-01-10 17:55:35,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:35,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512362597] [2022-01-10 17:55:35,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:35,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:35,361 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 17:55:35,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:35,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512362597] [2022-01-10 17:55:35,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512362597] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:35,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:35,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:55:35,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424860131] [2022-01-10 17:55:35,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:35,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:55:35,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:35,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:55:35,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:55:35,363 INFO L87 Difference]: Start difference. First operand 3987 states and 7459 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:55:35,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:55:35,535 INFO L93 Difference]: Finished difference Result 9602 states and 18002 transitions. [2022-01-10 17:55:35,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:55:35,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-01-10 17:55:35,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:55:35,560 INFO L225 Difference]: With dead ends: 9602 [2022-01-10 17:55:35,560 INFO L226 Difference]: Without dead ends: 7306 [2022-01-10 17:55:35,566 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 17:55:35,572 INFO L933 BasicCegarLoop]: 4229 mSDtfsCounter, 4171 mSDsluCounter, 3221 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4171 SdHoareTripleChecker+Valid, 7450 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 17:55:35,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4171 Valid, 7450 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:55:35,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7306 states. [2022-01-10 17:55:35,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7306 to 7304. [2022-01-10 17:55:35,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7304 states, 7299 states have (on average 1.8771064529387587) internal successors, (13701), 7303 states have internal predecessors, (13701), 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 17:55:35,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7304 states to 7304 states and 13701 transitions. [2022-01-10 17:55:35,728 INFO L78 Accepts]: Start accepts. Automaton has 7304 states and 13701 transitions. Word has length 57 [2022-01-10 17:55:35,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:55:35,728 INFO L470 AbstractCegarLoop]: Abstraction has 7304 states and 13701 transitions. [2022-01-10 17:55:35,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:55:35,729 INFO L276 IsEmpty]: Start isEmpty. Operand 7304 states and 13701 transitions. [2022-01-10 17:55:35,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 17:55:35,731 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:35,731 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 17:55:35,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 17:55:35,732 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 17:55:35,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:35,734 INFO L85 PathProgramCache]: Analyzing trace with hash -460210699, now seen corresponding path program 1 times [2022-01-10 17:55:35,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:35,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308773430] [2022-01-10 17:55:35,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:35,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:35,822 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 17:55:35,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:35,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308773430] [2022-01-10 17:55:35,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308773430] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:35,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:35,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:55:35,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771096637] [2022-01-10 17:55:35,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:35,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:55:35,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:35,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:55:35,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:55:35,825 INFO L87 Difference]: Start difference. First operand 7304 states and 13701 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 17:55:36,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:55:36,067 INFO L93 Difference]: Finished difference Result 18278 states and 34313 transitions. [2022-01-10 17:55:36,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:55:36,067 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 17:55:36,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:55:36,115 INFO L225 Difference]: With dead ends: 18278 [2022-01-10 17:55:36,116 INFO L226 Difference]: Without dead ends: 13719 [2022-01-10 17:55:36,125 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 17:55:36,126 INFO L933 BasicCegarLoop]: 4229 mSDtfsCounter, 4159 mSDsluCounter, 3224 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4159 SdHoareTripleChecker+Valid, 7453 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 17:55:36,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4159 Valid, 7453 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:55:36,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13719 states. [2022-01-10 17:55:36,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13719 to 13715. [2022-01-10 17:55:36,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13715 states, 13710 states have (on average 1.8788475565280818) internal successors, (25759), 13714 states have internal predecessors, (25759), 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 17:55:36,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13715 states to 13715 states and 25759 transitions. [2022-01-10 17:55:36,435 INFO L78 Accepts]: Start accepts. Automaton has 13715 states and 25759 transitions. Word has length 58 [2022-01-10 17:55:36,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:55:36,437 INFO L470 AbstractCegarLoop]: Abstraction has 13715 states and 25759 transitions. [2022-01-10 17:55:36,438 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 17:55:36,438 INFO L276 IsEmpty]: Start isEmpty. Operand 13715 states and 25759 transitions. [2022-01-10 17:55:36,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 17:55:36,440 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:36,440 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] [2022-01-10 17:55:36,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 17:55:36,441 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 17:55:36,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:36,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1381616521, now seen corresponding path program 1 times [2022-01-10 17:55:36,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:36,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767861973] [2022-01-10 17:55:36,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:36,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:36,552 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 17:55:36,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:36,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767861973] [2022-01-10 17:55:36,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767861973] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:36,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:36,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:55:36,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009439990] [2022-01-10 17:55:36,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:36,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:55:36,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:36,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:55:36,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:55:36,554 INFO L87 Difference]: Start difference. First operand 13715 states and 25759 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 17:55:36,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:55:36,876 INFO L93 Difference]: Finished difference Result 35162 states and 66046 transitions. [2022-01-10 17:55:36,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:55:36,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2022-01-10 17:55:36,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:55:36,938 INFO L225 Difference]: With dead ends: 35162 [2022-01-10 17:55:36,938 INFO L226 Difference]: Without dead ends: 26096 [2022-01-10 17:55:36,959 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 17:55:36,959 INFO L933 BasicCegarLoop]: 4229 mSDtfsCounter, 4158 mSDsluCounter, 3227 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4158 SdHoareTripleChecker+Valid, 7456 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:55:36,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4158 Valid, 7456 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:55:36,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26096 states. [2022-01-10 17:55:37,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26096 to 26090. [2022-01-10 17:55:37,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26090 states, 26085 states have (on average 1.8792792792792792) internal successors, (49021), 26089 states have internal predecessors, (49021), 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 17:55:37,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26090 states to 26090 states and 49021 transitions. [2022-01-10 17:55:37,513 INFO L78 Accepts]: Start accepts. Automaton has 26090 states and 49021 transitions. Word has length 59 [2022-01-10 17:55:37,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:55:37,513 INFO L470 AbstractCegarLoop]: Abstraction has 26090 states and 49021 transitions. [2022-01-10 17:55:37,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 17:55:37,514 INFO L276 IsEmpty]: Start isEmpty. Operand 26090 states and 49021 transitions. [2022-01-10 17:55:37,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 17:55:37,516 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:37,516 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] [2022-01-10 17:55:37,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 17:55:37,516 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 17:55:37,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:37,517 INFO L85 PathProgramCache]: Analyzing trace with hash 119574119, now seen corresponding path program 1 times [2022-01-10 17:55:37,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:37,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874819371] [2022-01-10 17:55:37,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:37,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:37,577 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 17:55:37,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:37,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874819371] [2022-01-10 17:55:37,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874819371] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:37,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:37,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:55:37,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485945103] [2022-01-10 17:55:37,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:37,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:55:37,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:37,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:55:37,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:55:37,579 INFO L87 Difference]: Start difference. First operand 26090 states and 49021 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 17:55:38,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:55:38,212 INFO L93 Difference]: Finished difference Result 67994 states and 127730 transitions. [2022-01-10 17:55:38,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:55:38,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2022-01-10 17:55:38,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:55:38,355 INFO L225 Difference]: With dead ends: 67994 [2022-01-10 17:55:38,356 INFO L226 Difference]: Without dead ends: 49946 [2022-01-10 17:55:38,387 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 17:55:38,388 INFO L933 BasicCegarLoop]: 4230 mSDtfsCounter, 4157 mSDsluCounter, 3230 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4157 SdHoareTripleChecker+Valid, 7460 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 17:55:38,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4157 Valid, 7460 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:55:38,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49946 states. [2022-01-10 17:55:39,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49946 to 49938. [2022-01-10 17:55:39,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49938 states, 49933 states have (on average 1.8789377766206716) internal successors, (93821), 49937 states have internal predecessors, (93821), 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 17:55:39,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49938 states to 49938 states and 93821 transitions. [2022-01-10 17:55:39,486 INFO L78 Accepts]: Start accepts. Automaton has 49938 states and 93821 transitions. Word has length 60 [2022-01-10 17:55:39,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:55:39,486 INFO L470 AbstractCegarLoop]: Abstraction has 49938 states and 93821 transitions. [2022-01-10 17:55:39,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 17:55:39,487 INFO L276 IsEmpty]: Start isEmpty. Operand 49938 states and 93821 transitions. [2022-01-10 17:55:39,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 17:55:39,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:39,509 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] [2022-01-10 17:55:39,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 17:55:39,510 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 17:55:39,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:39,510 INFO L85 PathProgramCache]: Analyzing trace with hash 94093730, now seen corresponding path program 1 times [2022-01-10 17:55:39,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:39,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874508347] [2022-01-10 17:55:39,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:39,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:39,590 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 17:55:39,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:39,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874508347] [2022-01-10 17:55:39,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874508347] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:39,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:39,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:55:39,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944490905] [2022-01-10 17:55:39,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:39,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:55:39,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:39,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:55:39,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:55:39,592 INFO L87 Difference]: Start difference. First operand 49938 states and 93821 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 17:55:41,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:55:41,008 INFO L93 Difference]: Finished difference Result 101979 states and 191545 transitions. [2022-01-10 17:55:41,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:55:41,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 102 [2022-01-10 17:55:41,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:55:41,120 INFO L225 Difference]: With dead ends: 101979 [2022-01-10 17:55:41,121 INFO L226 Difference]: Without dead ends: 52888 [2022-01-10 17:55:41,160 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 17:55:41,161 INFO L933 BasicCegarLoop]: 4655 mSDtfsCounter, 3326 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3326 SdHoareTripleChecker+Valid, 6598 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 17:55:41,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3326 Valid, 6598 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 17:55:41,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52888 states. [2022-01-10 17:55:41,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52888 to 49938. [2022-01-10 17:55:42,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49938 states, 49933 states have (on average 1.8518014138946188) internal successors, (92466), 49937 states have internal predecessors, (92466), 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 17:55:42,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49938 states to 49938 states and 92466 transitions. [2022-01-10 17:55:42,121 INFO L78 Accepts]: Start accepts. Automaton has 49938 states and 92466 transitions. Word has length 102 [2022-01-10 17:55:42,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:55:42,121 INFO L470 AbstractCegarLoop]: Abstraction has 49938 states and 92466 transitions. [2022-01-10 17:55:42,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 17:55:42,122 INFO L276 IsEmpty]: Start isEmpty. Operand 49938 states and 92466 transitions. [2022-01-10 17:55:42,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-10 17:55:42,142 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:42,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:55:42,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 17:55:42,143 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 17:55:42,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:42,143 INFO L85 PathProgramCache]: Analyzing trace with hash 184411706, now seen corresponding path program 1 times [2022-01-10 17:55:42,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:42,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176871649] [2022-01-10 17:55:42,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:42,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:42,206 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 17:55:42,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:42,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176871649] [2022-01-10 17:55:42,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176871649] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:42,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:42,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:55:42,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017539651] [2022-01-10 17:55:42,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:42,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:55:42,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:42,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:55:42,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:55:42,211 INFO L87 Difference]: Start difference. First operand 49938 states and 92466 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 17:55:43,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:55:43,672 INFO L93 Difference]: Finished difference Result 103674 states and 192096 transitions. [2022-01-10 17:55:43,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:55:43,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 107 [2022-01-10 17:55:43,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:55:43,780 INFO L225 Difference]: With dead ends: 103674 [2022-01-10 17:55:43,781 INFO L226 Difference]: Without dead ends: 55741 [2022-01-10 17:55:43,824 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 17:55:43,825 INFO L933 BasicCegarLoop]: 5133 mSDtfsCounter, 3051 mSDsluCounter, 2233 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3051 SdHoareTripleChecker+Valid, 7366 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 17:55:43,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3051 Valid, 7366 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 17:55:43,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55741 states. [2022-01-10 17:55:44,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55741 to 49938. [2022-01-10 17:55:44,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49938 states, 49933 states have (on average 1.8284701500010014) internal successors, (91301), 49937 states have internal predecessors, (91301), 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 17:55:45,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49938 states to 49938 states and 91301 transitions. [2022-01-10 17:55:45,006 INFO L78 Accepts]: Start accepts. Automaton has 49938 states and 91301 transitions. Word has length 107 [2022-01-10 17:55:45,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:55:45,007 INFO L470 AbstractCegarLoop]: Abstraction has 49938 states and 91301 transitions. [2022-01-10 17:55:45,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 17:55:45,007 INFO L276 IsEmpty]: Start isEmpty. Operand 49938 states and 91301 transitions. [2022-01-10 17:55:45,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-10 17:55:45,023 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:45,023 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] [2022-01-10 17:55:45,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 17:55:45,024 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 17:55:45,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:45,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1480927499, now seen corresponding path program 1 times [2022-01-10 17:55:45,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:45,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840950123] [2022-01-10 17:55:45,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:45,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:45,090 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 17:55:45,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:45,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840950123] [2022-01-10 17:55:45,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840950123] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:45,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:45,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:55:45,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086758192] [2022-01-10 17:55:45,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:45,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:55:45,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:45,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:55:45,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:55:45,092 INFO L87 Difference]: Start difference. First operand 49938 states and 91301 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 17:55:46,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:55:46,372 INFO L93 Difference]: Finished difference Result 105042 states and 192580 transitions. [2022-01-10 17:55:46,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:55:46,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 111 [2022-01-10 17:55:46,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:55:46,494 INFO L225 Difference]: With dead ends: 105042 [2022-01-10 17:55:46,495 INFO L226 Difference]: Without dead ends: 59347 [2022-01-10 17:55:46,528 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 17:55:46,529 INFO L933 BasicCegarLoop]: 5503 mSDtfsCounter, 2898 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2898 SdHoareTripleChecker+Valid, 8026 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 17:55:46,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2898 Valid, 8026 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 17:55:46,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59347 states. [2022-01-10 17:55:47,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59347 to 49938. [2022-01-10 17:55:47,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49938 states, 49933 states have (on average 1.8099453267378287) internal successors, (90376), 49937 states have internal predecessors, (90376), 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 17:55:47,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49938 states to 49938 states and 90376 transitions. [2022-01-10 17:55:47,646 INFO L78 Accepts]: Start accepts. Automaton has 49938 states and 90376 transitions. Word has length 111 [2022-01-10 17:55:47,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:55:47,646 INFO L470 AbstractCegarLoop]: Abstraction has 49938 states and 90376 transitions. [2022-01-10 17:55:47,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 17:55:47,647 INFO L276 IsEmpty]: Start isEmpty. Operand 49938 states and 90376 transitions. [2022-01-10 17:55:47,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 17:55:47,680 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:47,680 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] [2022-01-10 17:55:47,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 17:55:47,681 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 17:55:47,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:47,681 INFO L85 PathProgramCache]: Analyzing trace with hash -879076906, now seen corresponding path program 1 times [2022-01-10 17:55:47,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:47,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616148660] [2022-01-10 17:55:47,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:47,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:47,840 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 17:55:47,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:47,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616148660] [2022-01-10 17:55:47,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616148660] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:47,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:47,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:55:47,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400619204] [2022-01-10 17:55:47,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:47,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:55:47,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:47,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:55:47,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:55:47,842 INFO L87 Difference]: Start difference. First operand 49938 states and 90376 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 17:55:49,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:55:49,563 INFO L93 Difference]: Finished difference Result 126436 states and 230531 transitions. [2022-01-10 17:55:49,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:55:49,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 114 [2022-01-10 17:55:49,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:55:49,754 INFO L225 Difference]: With dead ends: 126436 [2022-01-10 17:55:49,755 INFO L226 Difference]: Without dead ends: 83618 [2022-01-10 17:55:49,802 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 17:55:49,803 INFO L933 BasicCegarLoop]: 6328 mSDtfsCounter, 2633 mSDsluCounter, 3210 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2633 SdHoareTripleChecker+Valid, 9538 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 17:55:49,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2633 Valid, 9538 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 17:55:49,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83618 states. [2022-01-10 17:55:50,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83618 to 49623. [2022-01-10 17:55:50,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49623 states, 49618 states have (on average 1.7960417590390585) internal successors, (89116), 49622 states have internal predecessors, (89116), 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 17:55:51,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49623 states to 49623 states and 89116 transitions. [2022-01-10 17:55:51,055 INFO L78 Accepts]: Start accepts. Automaton has 49623 states and 89116 transitions. Word has length 114 [2022-01-10 17:55:51,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:55:51,055 INFO L470 AbstractCegarLoop]: Abstraction has 49623 states and 89116 transitions. [2022-01-10 17:55:51,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 17:55:51,056 INFO L276 IsEmpty]: Start isEmpty. Operand 49623 states and 89116 transitions. [2022-01-10 17:55:51,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-10 17:55:51,070 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:51,071 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] [2022-01-10 17:55:51,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 17:55:51,071 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 17:55:51,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:51,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1266579248, now seen corresponding path program 1 times [2022-01-10 17:55:51,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:51,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94863031] [2022-01-10 17:55:51,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:51,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:51,188 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 17:55:51,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:51,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94863031] [2022-01-10 17:55:51,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94863031] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:51,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:51,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:55:51,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413983511] [2022-01-10 17:55:51,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:51,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:55:51,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:51,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:55:51,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:55:51,190 INFO L87 Difference]: Start difference. First operand 49623 states and 89116 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 17:55:53,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:55:53,027 INFO L93 Difference]: Finished difference Result 102356 states and 185541 transitions. [2022-01-10 17:55:53,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:55:53,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 115 [2022-01-10 17:55:53,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:55:53,143 INFO L225 Difference]: With dead ends: 102356 [2022-01-10 17:55:53,143 INFO L226 Difference]: Without dead ends: 63283 [2022-01-10 17:55:53,186 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 17:55:53,186 INFO L933 BasicCegarLoop]: 5913 mSDtfsCounter, 2385 mSDsluCounter, 3103 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2385 SdHoareTripleChecker+Valid, 9016 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 17:55:53,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2385 Valid, 9016 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 17:55:53,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63283 states. [2022-01-10 17:55:54,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63283 to 49623. [2022-01-10 17:55:54,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49623 states, 49618 states have (on average 1.783143214156153) internal successors, (88476), 49622 states have internal predecessors, (88476), 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 17:55:54,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49623 states to 49623 states and 88476 transitions. [2022-01-10 17:55:54,366 INFO L78 Accepts]: Start accepts. Automaton has 49623 states and 88476 transitions. Word has length 115 [2022-01-10 17:55:54,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:55:54,366 INFO L470 AbstractCegarLoop]: Abstraction has 49623 states and 88476 transitions. [2022-01-10 17:55:54,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 17:55:54,366 INFO L276 IsEmpty]: Start isEmpty. Operand 49623 states and 88476 transitions. [2022-01-10 17:55:54,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 17:55:54,380 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:54,380 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] [2022-01-10 17:55:54,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 17:55:54,381 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 17:55:54,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:54,381 INFO L85 PathProgramCache]: Analyzing trace with hash 410073493, now seen corresponding path program 1 times [2022-01-10 17:55:54,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:54,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6769721] [2022-01-10 17:55:54,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:54,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:54,452 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 17:55:54,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:54,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6769721] [2022-01-10 17:55:54,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6769721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:54,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:54,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:55:54,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445420917] [2022-01-10 17:55:54,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:54,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:55:54,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:54,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:55:54,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:55:54,600 INFO L87 Difference]: Start difference. First operand 49623 states and 88476 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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 17:55:56,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:55:56,543 INFO L93 Difference]: Finished difference Result 148769 states and 265306 transitions. [2022-01-10 17:55:56,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 17:55:56,544 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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 116 [2022-01-10 17:55:56,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:55:56,748 INFO L225 Difference]: With dead ends: 148769 [2022-01-10 17:55:56,749 INFO L226 Difference]: Without dead ends: 99175 [2022-01-10 17:55:56,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 17:55:56,789 INFO L933 BasicCegarLoop]: 8009 mSDtfsCounter, 12016 mSDsluCounter, 4024 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12016 SdHoareTripleChecker+Valid, 12033 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:55:56,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12016 Valid, 12033 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:55:56,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99175 states. [2022-01-10 17:55:58,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99175 to 49602. [2022-01-10 17:55:58,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49602 states, 49597 states have (on average 1.7833336693751638) internal successors, (88448), 49601 states have internal predecessors, (88448), 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 17:55:58,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49602 states to 49602 states and 88448 transitions. [2022-01-10 17:55:58,372 INFO L78 Accepts]: Start accepts. Automaton has 49602 states and 88448 transitions. Word has length 116 [2022-01-10 17:55:58,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:55:58,373 INFO L470 AbstractCegarLoop]: Abstraction has 49602 states and 88448 transitions. [2022-01-10 17:55:58,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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 17:55:58,373 INFO L276 IsEmpty]: Start isEmpty. Operand 49602 states and 88448 transitions. [2022-01-10 17:55:58,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-10 17:55:58,386 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:58,386 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] [2022-01-10 17:55:58,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 17:55:58,387 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 17:55:58,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:58,387 INFO L85 PathProgramCache]: Analyzing trace with hash -849601764, now seen corresponding path program 1 times [2022-01-10 17:55:58,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:58,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143141478] [2022-01-10 17:55:58,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:58,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:58,444 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 17:55:58,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:58,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143141478] [2022-01-10 17:55:58,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143141478] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:58,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:58,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 17:55:58,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674724745] [2022-01-10 17:55:58,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:58,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 17:55:58,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:58,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 17:55:58,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 17:55:58,446 INFO L87 Difference]: Start difference. First operand 49602 states and 88448 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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 17:56:01,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:01,752 INFO L93 Difference]: Finished difference Result 198336 states and 353711 transitions. [2022-01-10 17:56:01,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 17:56:01,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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 118 [2022-01-10 17:56:01,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:02,015 INFO L225 Difference]: With dead ends: 198336 [2022-01-10 17:56:02,015 INFO L226 Difference]: Without dead ends: 148757 [2022-01-10 17:56:02,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:56:02,067 INFO L933 BasicCegarLoop]: 8011 mSDtfsCounter, 12000 mSDsluCounter, 12021 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12000 SdHoareTripleChecker+Valid, 20032 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:02,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12000 Valid, 20032 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:02,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148757 states. [2022-01-10 17:56:03,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148757 to 49604. [2022-01-10 17:56:04,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49604 states, 49599 states have (on average 1.7833020827032804) internal successors, (88450), 49603 states have internal predecessors, (88450), 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 17:56:04,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49604 states to 49604 states and 88450 transitions. [2022-01-10 17:56:04,113 INFO L78 Accepts]: Start accepts. Automaton has 49604 states and 88450 transitions. Word has length 118 [2022-01-10 17:56:04,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:04,113 INFO L470 AbstractCegarLoop]: Abstraction has 49604 states and 88450 transitions. [2022-01-10 17:56:04,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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 17:56:04,113 INFO L276 IsEmpty]: Start isEmpty. Operand 49604 states and 88450 transitions. [2022-01-10 17:56:04,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-10 17:56:04,127 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:04,127 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] [2022-01-10 17:56:04,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 17:56:04,127 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:04,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:04,127 INFO L85 PathProgramCache]: Analyzing trace with hash -790381027, now seen corresponding path program 1 times [2022-01-10 17:56:04,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:04,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328503262] [2022-01-10 17:56:04,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:04,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:04,316 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 17:56:04,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:04,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328503262] [2022-01-10 17:56:04,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328503262] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:04,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:04,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 17:56:04,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103167256] [2022-01-10 17:56:04,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:04,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 17:56:04,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:04,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 17:56:04,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 17:56:04,317 INFO L87 Difference]: Start difference. First operand 49604 states and 88450 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 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 17:56:05,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:05,529 INFO L93 Difference]: Finished difference Result 99184 states and 176873 transitions. [2022-01-10 17:56:05,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:05,530 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 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 118 [2022-01-10 17:56:05,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:05,618 INFO L225 Difference]: With dead ends: 99184 [2022-01-10 17:56:05,619 INFO L226 Difference]: Without dead ends: 49596 [2022-01-10 17:56:05,646 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 17:56:05,646 INFO L933 BasicCegarLoop]: 4009 mSDtfsCounter, 8013 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8013 SdHoareTripleChecker+Valid, 4030 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:05,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8013 Valid, 4030 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:05,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49596 states. [2022-01-10 17:56:06,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49596 to 49596. [2022-01-10 17:56:06,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49596 states, 49591 states have (on average 1.7833679498296062) internal successors, (88439), 49595 states have internal predecessors, (88439), 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 17:56:07,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49596 states to 49596 states and 88439 transitions. [2022-01-10 17:56:07,073 INFO L78 Accepts]: Start accepts. Automaton has 49596 states and 88439 transitions. Word has length 118 [2022-01-10 17:56:07,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:07,073 INFO L470 AbstractCegarLoop]: Abstraction has 49596 states and 88439 transitions. [2022-01-10 17:56:07,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 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 17:56:07,073 INFO L276 IsEmpty]: Start isEmpty. Operand 49596 states and 88439 transitions. [2022-01-10 17:56:07,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-10 17:56:07,086 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:07,086 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] [2022-01-10 17:56:07,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 17:56:07,087 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:07,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:07,087 INFO L85 PathProgramCache]: Analyzing trace with hash 352879303, now seen corresponding path program 1 times [2022-01-10 17:56:07,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:07,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600097890] [2022-01-10 17:56:07,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:07,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:07,150 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 17:56:07,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:07,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600097890] [2022-01-10 17:56:07,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600097890] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:07,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:07,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:56:07,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176766697] [2022-01-10 17:56:07,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:07,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:56:07,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:07,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:56:07,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:56:07,152 INFO L87 Difference]: Start difference. First operand 49596 states and 88439 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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 17:56:08,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:08,492 INFO L93 Difference]: Finished difference Result 99163 states and 176843 transitions. [2022-01-10 17:56:08,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 17:56:08,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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 119 [2022-01-10 17:56:08,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:08,585 INFO L225 Difference]: With dead ends: 99163 [2022-01-10 17:56:08,585 INFO L226 Difference]: Without dead ends: 49596 [2022-01-10 17:56:08,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 17:56:08,616 INFO L933 BasicCegarLoop]: 4002 mSDtfsCounter, 7988 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7988 SdHoareTripleChecker+Valid, 4052 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:08,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7988 Valid, 4052 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:08,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49596 states. [2022-01-10 17:56:09,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49596 to 49596. [2022-01-10 17:56:09,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49596 states, 49591 states have (on average 1.783347784880321) internal successors, (88438), 49595 states have internal predecessors, (88438), 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 17:56:10,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49596 states to 49596 states and 88438 transitions. [2022-01-10 17:56:10,037 INFO L78 Accepts]: Start accepts. Automaton has 49596 states and 88438 transitions. Word has length 119 [2022-01-10 17:56:10,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:10,039 INFO L470 AbstractCegarLoop]: Abstraction has 49596 states and 88438 transitions. [2022-01-10 17:56:10,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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 17:56:10,039 INFO L276 IsEmpty]: Start isEmpty. Operand 49596 states and 88438 transitions. [2022-01-10 17:56:10,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 17:56:10,090 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:10,090 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 17:56:10,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 17:56:10,091 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:10,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:10,091 INFO L85 PathProgramCache]: Analyzing trace with hash -234715838, now seen corresponding path program 1 times [2022-01-10 17:56:10,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:10,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988725519] [2022-01-10 17:56:10,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:10,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:10,170 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 17:56:10,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:10,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988725519] [2022-01-10 17:56:10,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988725519] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:10,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:10,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 17:56:10,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135266735] [2022-01-10 17:56:10,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:10,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:56:10,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:10,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:56:10,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:56:10,172 INFO L87 Difference]: Start difference. First operand 49596 states and 88438 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 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 17:56:15,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:15,044 INFO L93 Difference]: Finished difference Result 200544 states and 356438 transitions. [2022-01-10 17:56:15,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 17:56:15,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 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 17:56:15,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:15,366 INFO L225 Difference]: With dead ends: 200544 [2022-01-10 17:56:15,367 INFO L226 Difference]: Without dead ends: 150994 [2022-01-10 17:56:15,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 17:56:15,424 INFO L933 BasicCegarLoop]: 7753 mSDtfsCounter, 15588 mSDsluCounter, 11654 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15588 SdHoareTripleChecker+Valid, 19407 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:15,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15588 Valid, 19407 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 17:56:15,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150994 states. [2022-01-10 17:56:17,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150994 to 49662. [2022-01-10 17:56:17,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49662 states, 49657 states have (on average 1.7823066234367764) internal successors, (88504), 49661 states have internal predecessors, (88504), 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 17:56:17,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49662 states to 49662 states and 88504 transitions. [2022-01-10 17:56:17,782 INFO L78 Accepts]: Start accepts. Automaton has 49662 states and 88504 transitions. Word has length 120 [2022-01-10 17:56:17,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:17,782 INFO L470 AbstractCegarLoop]: Abstraction has 49662 states and 88504 transitions. [2022-01-10 17:56:17,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 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 17:56:17,782 INFO L276 IsEmpty]: Start isEmpty. Operand 49662 states and 88504 transitions. [2022-01-10 17:56:17,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 17:56:17,812 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:17,812 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 17:56:17,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 17:56:17,812 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:17,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:17,812 INFO L85 PathProgramCache]: Analyzing trace with hash -432282458, now seen corresponding path program 1 times [2022-01-10 17:56:17,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:17,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500920974] [2022-01-10 17:56:17,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:17,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:17,884 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 17:56:17,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:17,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500920974] [2022-01-10 17:56:17,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500920974] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:17,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:17,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:17,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477168237] [2022-01-10 17:56:17,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:17,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 17:56:17,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:17,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 17:56:17,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 17:56:17,886 INFO L87 Difference]: Start difference. First operand 49662 states and 88504 transitions. Second operand has 4 states, 4 states have (on average 30.25) 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 17:56:22,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:22,401 INFO L93 Difference]: Finished difference Result 164030 states and 292396 transitions. [2022-01-10 17:56:22,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 17:56:22,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) 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 17:56:22,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:22,638 INFO L225 Difference]: With dead ends: 164030 [2022-01-10 17:56:22,638 INFO L226 Difference]: Without dead ends: 114401 [2022-01-10 17:56:22,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:56:22,691 INFO L933 BasicCegarLoop]: 6873 mSDtfsCounter, 6927 mSDsluCounter, 5394 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6927 SdHoareTripleChecker+Valid, 12267 SdHoareTripleChecker+Invalid, 995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:22,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6927 Valid, 12267 Invalid, 995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 17:56:22,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114401 states. [2022-01-10 17:56:25,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114401 to 79386. [2022-01-10 17:56:25,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79386 states, 79381 states have (on average 1.771998337133571) internal successors, (140663), 79385 states have internal predecessors, (140663), 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 17:56:25,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79386 states to 79386 states and 140663 transitions. [2022-01-10 17:56:25,998 INFO L78 Accepts]: Start accepts. Automaton has 79386 states and 140663 transitions. Word has length 121 [2022-01-10 17:56:25,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:25,998 INFO L470 AbstractCegarLoop]: Abstraction has 79386 states and 140663 transitions. [2022-01-10 17:56:25,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) 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 17:56:25,998 INFO L276 IsEmpty]: Start isEmpty. Operand 79386 states and 140663 transitions. [2022-01-10 17:56:26,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 17:56:26,013 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:26,013 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, 1] [2022-01-10 17:56:26,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 17:56:26,013 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:26,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:26,013 INFO L85 PathProgramCache]: Analyzing trace with hash 616459918, now seen corresponding path program 1 times [2022-01-10 17:56:26,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:26,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103625768] [2022-01-10 17:56:26,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:26,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:26,099 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 17:56:26,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:26,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103625768] [2022-01-10 17:56:26,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103625768] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:26,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:26,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 17:56:26,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256786889] [2022-01-10 17:56:26,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:26,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:56:26,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:26,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:56:26,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:56:26,101 INFO L87 Difference]: Start difference. First operand 79386 states and 140663 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 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)