/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:35:17,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:35:17,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:35:17,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:35:17,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:35:17,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:35:17,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:35:17,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:35:17,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:35:17,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:35:17,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:35:17,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:35:17,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:35:17,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:35:17,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:35:17,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:35:17,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:35:17,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:35:17,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:35:17,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:35:17,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:35:17,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:35:17,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:35:17,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:35:17,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:35:17,959 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:35:17,959 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:35:17,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:35:17,960 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:35:17,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:35:17,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:35:17,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:35:17,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:35:17,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:35:17,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:35:17,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:35:17,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:35:17,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:35:17,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:35:17,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:35:17,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:35:17,968 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:35:17,990 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:35:17,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:35:17,990 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:35:17,990 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:35:17,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:35:17,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:35:17,993 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:35:17,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:35:17,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:35:17,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:35:17,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:35:17,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:35:17,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:35:17,994 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:35:17,994 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:35:17,994 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:35:17,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:35:17,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:35:17,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:35:17,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:35:17,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:35:17,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:35:17,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:35:17,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:35:17,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:35:17,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:35:17,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:35:17,996 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:35:17,996 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:35:17,996 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:35:17,996 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:35:17,996 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:35:17,997 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:35:17,997 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:35:18,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:35:18,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:35:18,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:35:18,197 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:35:18,198 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:35:18,199 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product24.cil.c [2022-01-11 05:35:18,258 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e97d2e2a/2f86822ed63f4fb28aae58a636bbf99b/FLAGfd260341b [2022-01-11 05:35:18,764 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:35:18,764 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product24.cil.c [2022-01-11 05:35:18,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e97d2e2a/2f86822ed63f4fb28aae58a636bbf99b/FLAGfd260341b [2022-01-11 05:35:19,288 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e97d2e2a/2f86822ed63f4fb28aae58a636bbf99b [2022-01-11 05:35:19,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:35:19,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:35:19,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:35:19,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:35:19,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:35:19,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:35:19" (1/1) ... [2022-01-11 05:35:19,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54229e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:19, skipping insertion in model container [2022-01-11 05:35:19,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:35:19" (1/1) ... [2022-01-11 05:35:19,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:35:19,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:35:19,762 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_spec3_product24.cil.c[75121,75134] [2022-01-11 05:35:19,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:35:19,782 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:35:19,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:35:19,901 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_spec3_product24.cil.c[75121,75134] [2022-01-11 05:35:19,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:35:19,906 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:35:20,001 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_spec3_product24.cil.c[75121,75134] [2022-01-11 05:35:20,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:35:20,021 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:35:20,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:20 WrapperNode [2022-01-11 05:35:20,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:35:20,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:35:20,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:35:20,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:35:20,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:20" (1/1) ... [2022-01-11 05:35:20,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:20" (1/1) ... [2022-01-11 05:35:20,655 INFO L137 Inliner]: procedures = 98, calls = 359, calls flagged for inlining = 211, calls inlined = 1968, statements flattened = 66777 [2022-01-11 05:35:20,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:35:20,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:35:20,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:35:20,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:35:20,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:20" (1/1) ... [2022-01-11 05:35:20,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:20" (1/1) ... [2022-01-11 05:35:20,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:20" (1/1) ... [2022-01-11 05:35:20,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:20" (1/1) ... [2022-01-11 05:35:21,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:20" (1/1) ... [2022-01-11 05:35:21,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:20" (1/1) ... [2022-01-11 05:35:21,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:20" (1/1) ... [2022-01-11 05:35:21,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:35:21,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:35:21,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:35:21,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:35:21,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:20" (1/1) ... [2022-01-11 05:35:21,654 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:35:21,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:35:21,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:35:21,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:35:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:35:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:35:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:35:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:35:22,059 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:35:22,060 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:35:42,120 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:35:42,358 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:35:42,358 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:35:42,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:35:42 BoogieIcfgContainer [2022-01-11 05:35:42,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:35:42,410 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:35:42,410 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:35:42,411 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:35:42,414 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:35:42" (1/1) ... [2022-01-11 05:35:45,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:35:45 BasicIcfg [2022-01-11 05:35:45,142 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:35:45,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:35:45,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:35:45,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:35:45,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:35:19" (1/4) ... [2022-01-11 05:35:45,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@156a0d02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:35:45, skipping insertion in model container [2022-01-11 05:35:45,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:20" (2/4) ... [2022-01-11 05:35:45,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@156a0d02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:35:45, skipping insertion in model container [2022-01-11 05:35:45,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:35:42" (3/4) ... [2022-01-11 05:35:45,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@156a0d02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:35:45, skipping insertion in model container [2022-01-11 05:35:45,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:35:45" (4/4) ... [2022-01-11 05:35:45,149 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product24.cil.cTransformedIcfg [2022-01-11 05:35:45,153 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:35:45,153 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-11 05:35:45,220 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:35:45,225 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:35:45,225 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-11 05:35:45,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 17608 states, 17597 states have (on average 1.8761720747854749) internal successors, (33015), 17607 states have internal predecessors, (33015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:45,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-11 05:35:45,411 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:45,411 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] [2022-01-11 05:35:45,412 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:45,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:45,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1137878214, now seen corresponding path program 1 times [2022-01-11 05:35:45,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:45,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253391912] [2022-01-11 05:35:45,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:45,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:45,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:45,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:45,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253391912] [2022-01-11 05:35:45,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253391912] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:45,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:45,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:35:45,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839590022] [2022-01-11 05:35:45,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:45,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:35:45,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:46,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:35:46,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:35:46,067 INFO L87 Difference]: Start difference. First operand has 17608 states, 17597 states have (on average 1.8761720747854749) internal successors, (33015), 17607 states have internal predecessors, (33015), 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 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:47,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:47,874 INFO L93 Difference]: Finished difference Result 70221 states and 131693 transitions. [2022-01-11 05:35:47,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:35:47,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2022-01-11 05:35:47,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:48,086 INFO L225 Difference]: With dead ends: 70221 [2022-01-11 05:35:48,086 INFO L226 Difference]: Without dead ends: 52619 [2022-01-11 05:35:48,285 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 [2022-01-11 05:35:48,287 INFO L933 BasicCegarLoop]: 65806 mSDtfsCounter, 98560 mSDsluCounter, 98739 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98560 SdHoareTripleChecker+Valid, 164545 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:48,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98560 Valid, 164545 Invalid, 77 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:35:48,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52619 states. [2022-01-11 05:35:48,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52619 to 17601. [2022-01-11 05:35:48,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17601 states, 17591 states have (on average 1.8755613666079245) internal successors, (32993), 17600 states have internal predecessors, (32993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:48,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17601 states to 17601 states and 32993 transitions. [2022-01-11 05:35:48,911 INFO L78 Accepts]: Start accepts. Automaton has 17601 states and 32993 transitions. Word has length 34 [2022-01-11 05:35:48,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:48,911 INFO L470 AbstractCegarLoop]: Abstraction has 17601 states and 32993 transitions. [2022-01-11 05:35:48,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:48,912 INFO L276 IsEmpty]: Start isEmpty. Operand 17601 states and 32993 transitions. [2022-01-11 05:35:48,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-11 05:35:48,913 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:48,913 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] [2022-01-11 05:35:48,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:35:48,914 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:48,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:48,915 INFO L85 PathProgramCache]: Analyzing trace with hash 458567859, now seen corresponding path program 1 times [2022-01-11 05:35:48,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:48,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986175032] [2022-01-11 05:35:48,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:48,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:49,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:49,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:49,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986175032] [2022-01-11 05:35:49,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986175032] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:49,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:49,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:49,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214589604] [2022-01-11 05:35:49,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:49,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:49,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:49,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:49,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:49,011 INFO L87 Difference]: Start difference. First operand 17601 states and 32993 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:49,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:49,766 INFO L93 Difference]: Finished difference Result 35119 states and 65836 transitions. [2022-01-11 05:35:49,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:49,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 35 [2022-01-11 05:35:49,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:49,804 INFO L225 Difference]: With dead ends: 35119 [2022-01-11 05:35:49,804 INFO L226 Difference]: Without dead ends: 17533 [2022-01-11 05:35:49,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:49,827 INFO L933 BasicCegarLoop]: 32855 mSDtfsCounter, 32847 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32847 SdHoareTripleChecker+Valid, 32863 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:49,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32847 Valid, 32863 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:49,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17533 states. [2022-01-11 05:35:50,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17533 to 17533. [2022-01-11 05:35:50,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17533 states, 17523 states have (on average 1.8750784682988073) internal successors, (32857), 17532 states have internal predecessors, (32857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:50,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17533 states to 17533 states and 32857 transitions. [2022-01-11 05:35:50,339 INFO L78 Accepts]: Start accepts. Automaton has 17533 states and 32857 transitions. Word has length 35 [2022-01-11 05:35:50,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:50,339 INFO L470 AbstractCegarLoop]: Abstraction has 17533 states and 32857 transitions. [2022-01-11 05:35:50,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:50,342 INFO L276 IsEmpty]: Start isEmpty. Operand 17533 states and 32857 transitions. [2022-01-11 05:35:50,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-11 05:35:50,349 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:50,349 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] [2022-01-11 05:35:50,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:35:50,351 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:50,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:50,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1804362715, now seen corresponding path program 1 times [2022-01-11 05:35:50,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:50,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709388615] [2022-01-11 05:35:50,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:50,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:50,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:50,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:50,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709388615] [2022-01-11 05:35:50,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709388615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:50,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:50,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:35:50,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763608731] [2022-01-11 05:35:50,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:50,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:35:50,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:50,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:35:50,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:35:50,485 INFO L87 Difference]: Start difference. First operand 17533 states and 32857 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:51,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:51,331 INFO L93 Difference]: Finished difference Result 35044 states and 65685 transitions. [2022-01-11 05:35:51,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:35:51,332 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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 37 [2022-01-11 05:35:51,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:51,370 INFO L225 Difference]: With dead ends: 35044 [2022-01-11 05:35:51,371 INFO L226 Difference]: Without dead ends: 17533 [2022-01-11 05:35:51,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:35:51,392 INFO L933 BasicCegarLoop]: 32841 mSDtfsCounter, 98517 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98517 SdHoareTripleChecker+Valid, 32889 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:51,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98517 Valid, 32889 Invalid, 38 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:51,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17533 states. [2022-01-11 05:35:51,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17533 to 17533. [2022-01-11 05:35:51,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17533 states, 17523 states have (on average 1.8749643325914513) internal successors, (32855), 17532 states have internal predecessors, (32855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:51,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17533 states to 17533 states and 32855 transitions. [2022-01-11 05:35:51,875 INFO L78 Accepts]: Start accepts. Automaton has 17533 states and 32855 transitions. Word has length 37 [2022-01-11 05:35:51,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:51,875 INFO L470 AbstractCegarLoop]: Abstraction has 17533 states and 32855 transitions. [2022-01-11 05:35:51,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:51,876 INFO L276 IsEmpty]: Start isEmpty. Operand 17533 states and 32855 transitions. [2022-01-11 05:35:51,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-11 05:35:51,878 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:51,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:51,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:35:51,878 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:51,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:51,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1896563231, now seen corresponding path program 1 times [2022-01-11 05:35:51,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:51,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284348594] [2022-01-11 05:35:51,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:51,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:51,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:51,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:51,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284348594] [2022-01-11 05:35:51,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284348594] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:51,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:51,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:35:51,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763107333] [2022-01-11 05:35:51,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:51,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:35:51,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:51,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:35:51,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:35:51,959 INFO L87 Difference]: Start difference. First operand 17533 states and 32855 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:52,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:52,851 INFO L93 Difference]: Finished difference Result 35038 states and 65671 transitions. [2022-01-11 05:35:52,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:35:52,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-01-11 05:35:52,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:52,891 INFO L225 Difference]: With dead ends: 35038 [2022-01-11 05:35:52,891 INFO L226 Difference]: Without dead ends: 17533 [2022-01-11 05:35:52,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:35:52,917 INFO L933 BasicCegarLoop]: 32823 mSDtfsCounter, 65662 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65662 SdHoareTripleChecker+Valid, 32866 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:52,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65662 Valid, 32866 Invalid, 42 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:52,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17533 states. [2022-01-11 05:35:53,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17533 to 17533. [2022-01-11 05:35:53,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17533 states, 17523 states have (on average 1.8748501968840952) internal successors, (32853), 17532 states have internal predecessors, (32853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:53,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17533 states to 17533 states and 32853 transitions. [2022-01-11 05:35:53,468 INFO L78 Accepts]: Start accepts. Automaton has 17533 states and 32853 transitions. Word has length 38 [2022-01-11 05:35:53,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:53,469 INFO L470 AbstractCegarLoop]: Abstraction has 17533 states and 32853 transitions. [2022-01-11 05:35:53,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:53,469 INFO L276 IsEmpty]: Start isEmpty. Operand 17533 states and 32853 transitions. [2022-01-11 05:35:53,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-11 05:35:53,469 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:53,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:53,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:35:53,470 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:53,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:53,473 INFO L85 PathProgramCache]: Analyzing trace with hash 21590406, now seen corresponding path program 1 times [2022-01-11 05:35:53,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:53,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228186578] [2022-01-11 05:35:53,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:53,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:53,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:53,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:53,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228186578] [2022-01-11 05:35:53,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228186578] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:53,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:53,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:35:53,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282777751] [2022-01-11 05:35:53,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:53,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:35:53,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:53,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:35:53,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:35:53,535 INFO L87 Difference]: Start difference. First operand 17533 states and 32853 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:54,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:54,421 INFO L93 Difference]: Finished difference Result 35038 states and 65668 transitions. [2022-01-11 05:35:54,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:35:54,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-11 05:35:54,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:54,454 INFO L225 Difference]: With dead ends: 35038 [2022-01-11 05:35:54,454 INFO L226 Difference]: Without dead ends: 17533 [2022-01-11 05:35:54,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:35:54,468 INFO L933 BasicCegarLoop]: 32823 mSDtfsCounter, 131324 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131324 SdHoareTripleChecker+Valid, 32856 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:54,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131324 Valid, 32856 Invalid, 45 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:54,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17533 states. [2022-01-11 05:35:55,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17533 to 17533. [2022-01-11 05:35:55,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17533 states, 17523 states have (on average 1.8747360611767392) internal successors, (32851), 17532 states have internal predecessors, (32851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:55,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17533 states to 17533 states and 32851 transitions. [2022-01-11 05:35:55,171 INFO L78 Accepts]: Start accepts. Automaton has 17533 states and 32851 transitions. Word has length 39 [2022-01-11 05:35:55,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:55,173 INFO L470 AbstractCegarLoop]: Abstraction has 17533 states and 32851 transitions. [2022-01-11 05:35:55,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:55,173 INFO L276 IsEmpty]: Start isEmpty. Operand 17533 states and 32851 transitions. [2022-01-11 05:35:55,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-11 05:35:55,174 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:55,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:55,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:35:55,174 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:55,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:55,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1007227346, now seen corresponding path program 1 times [2022-01-11 05:35:55,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:55,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131912617] [2022-01-11 05:35:55,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:55,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:55,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:55,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:55,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131912617] [2022-01-11 05:35:55,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131912617] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:55,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:55,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:35:55,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117748536] [2022-01-11 05:35:55,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:55,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:35:55,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:55,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:35:55,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:35:55,238 INFO L87 Difference]: Start difference. First operand 17533 states and 32851 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:56,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:56,124 INFO L93 Difference]: Finished difference Result 35038 states and 65665 transitions. [2022-01-11 05:35:56,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 05:35:56,125 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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 40 [2022-01-11 05:35:56,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:56,154 INFO L225 Difference]: With dead ends: 35038 [2022-01-11 05:35:56,154 INFO L226 Difference]: Without dead ends: 17533 [2022-01-11 05:35:56,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:35:56,168 INFO L933 BasicCegarLoop]: 32823 mSDtfsCounter, 98480 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98480 SdHoareTripleChecker+Valid, 32866 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:56,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98480 Valid, 32866 Invalid, 47 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:56,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17533 states. [2022-01-11 05:35:56,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17533 to 17533. [2022-01-11 05:35:56,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17533 states, 17523 states have (on average 1.874621925469383) internal successors, (32849), 17532 states have internal predecessors, (32849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:56,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17533 states to 17533 states and 32849 transitions. [2022-01-11 05:35:56,696 INFO L78 Accepts]: Start accepts. Automaton has 17533 states and 32849 transitions. Word has length 40 [2022-01-11 05:35:56,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:56,697 INFO L470 AbstractCegarLoop]: Abstraction has 17533 states and 32849 transitions. [2022-01-11 05:35:56,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:56,697 INFO L276 IsEmpty]: Start isEmpty. Operand 17533 states and 32849 transitions. [2022-01-11 05:35:56,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-11 05:35:56,698 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:56,698 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] [2022-01-11 05:35:56,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:35:56,698 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:56,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:56,698 INFO L85 PathProgramCache]: Analyzing trace with hash 477453785, now seen corresponding path program 1 times [2022-01-11 05:35:56,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:56,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393293367] [2022-01-11 05:35:56,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:56,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:56,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:56,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:56,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393293367] [2022-01-11 05:35:56,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393293367] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:56,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:56,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:35:56,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471539048] [2022-01-11 05:35:56,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:56,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:35:56,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:56,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:35:56,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:35:56,789 INFO L87 Difference]: Start difference. First operand 17533 states and 32849 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:57,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:57,541 INFO L93 Difference]: Finished difference Result 35038 states and 65662 transitions. [2022-01-11 05:35:57,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-11 05:35:57,542 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 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 41 [2022-01-11 05:35:57,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:57,570 INFO L225 Difference]: With dead ends: 35038 [2022-01-11 05:35:57,570 INFO L226 Difference]: Without dead ends: 17533 [2022-01-11 05:35:57,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:35:57,589 INFO L933 BasicCegarLoop]: 32823 mSDtfsCounter, 65648 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65648 SdHoareTripleChecker+Valid, 32886 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:57,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65648 Valid, 32886 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:57,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17533 states. [2022-01-11 05:35:58,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17533 to 17533. [2022-01-11 05:35:58,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17533 states, 17523 states have (on average 1.874507789762027) internal successors, (32847), 17532 states have internal predecessors, (32847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:58,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17533 states to 17533 states and 32847 transitions. [2022-01-11 05:35:58,141 INFO L78 Accepts]: Start accepts. Automaton has 17533 states and 32847 transitions. Word has length 41 [2022-01-11 05:35:58,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:58,141 INFO L470 AbstractCegarLoop]: Abstraction has 17533 states and 32847 transitions. [2022-01-11 05:35:58,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:58,141 INFO L276 IsEmpty]: Start isEmpty. Operand 17533 states and 32847 transitions. [2022-01-11 05:35:58,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-11 05:35:58,141 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:58,142 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] [2022-01-11 05:35:58,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:35:58,142 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:58,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:58,142 INFO L85 PathProgramCache]: Analyzing trace with hash 214594949, now seen corresponding path program 1 times [2022-01-11 05:35:58,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:58,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954289188] [2022-01-11 05:35:58,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:58,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:58,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:58,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:58,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954289188] [2022-01-11 05:35:58,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954289188] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:58,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:58,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:35:58,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852623339] [2022-01-11 05:35:58,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:58,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:35:58,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:58,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:35:58,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:35:58,213 INFO L87 Difference]: Start difference. First operand 17533 states and 32847 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:05,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:05,883 INFO L93 Difference]: Finished difference Result 145564 states and 272699 transitions. [2022-01-11 05:36:05,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:36:05,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-01-11 05:36:05,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:06,397 INFO L225 Difference]: With dead ends: 145564 [2022-01-11 05:36:06,397 INFO L226 Difference]: Without dead ends: 128145 [2022-01-11 05:36:06,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:36:06,477 INFO L933 BasicCegarLoop]: 68143 mSDtfsCounter, 221104 mSDsluCounter, 189200 mSDsCounter, 0 mSdLazyCounter, 3047 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221104 SdHoareTripleChecker+Valid, 257343 SdHoareTripleChecker+Invalid, 3759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 3047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:06,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221104 Valid, 257343 Invalid, 3759 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [712 Valid, 3047 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-01-11 05:36:06,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128145 states. [2022-01-11 05:36:08,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128145 to 32626. [2022-01-11 05:36:08,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32626 states, 32616 states have (on average 1.8704623497669854) internal successors, (61007), 32625 states have internal predecessors, (61007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:08,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32626 states to 32626 states and 61007 transitions. [2022-01-11 05:36:08,817 INFO L78 Accepts]: Start accepts. Automaton has 32626 states and 61007 transitions. Word has length 42 [2022-01-11 05:36:08,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:08,817 INFO L470 AbstractCegarLoop]: Abstraction has 32626 states and 61007 transitions. [2022-01-11 05:36:08,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:08,818 INFO L276 IsEmpty]: Start isEmpty. Operand 32626 states and 61007 transitions. [2022-01-11 05:36:08,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-11 05:36:08,818 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:08,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:36:08,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:36:08,818 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:08,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:08,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1648932404, now seen corresponding path program 1 times [2022-01-11 05:36:08,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:08,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132532409] [2022-01-11 05:36:08,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:08,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:08,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:08,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:08,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132532409] [2022-01-11 05:36:08,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132532409] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:08,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:08,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:36:08,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718789695] [2022-01-11 05:36:08,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:08,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:36:08,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:08,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:36:08,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:36:08,865 INFO L87 Difference]: Start difference. First operand 32626 states and 61007 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:11,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:11,293 INFO L93 Difference]: Finished difference Result 92350 states and 172771 transitions. [2022-01-11 05:36:11,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:36:11,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-01-11 05:36:11,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:11,429 INFO L225 Difference]: With dead ends: 92350 [2022-01-11 05:36:11,429 INFO L226 Difference]: Without dead ends: 64396 [2022-01-11 05:36:11,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:36:11,455 INFO L933 BasicCegarLoop]: 32933 mSDtfsCounter, 31972 mSDsluCounter, 32723 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31972 SdHoareTripleChecker+Valid, 65656 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:11,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31972 Valid, 65656 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:36:11,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64396 states. [2022-01-11 05:36:13,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64396 to 64264. [2022-01-11 05:36:13,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64264 states, 64254 states have (on average 1.872179163943101) internal successors, (120295), 64263 states have internal predecessors, (120295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:13,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64264 states to 64264 states and 120295 transitions. [2022-01-11 05:36:13,925 INFO L78 Accepts]: Start accepts. Automaton has 64264 states and 120295 transitions. Word has length 42 [2022-01-11 05:36:13,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:13,927 INFO L470 AbstractCegarLoop]: Abstraction has 64264 states and 120295 transitions. [2022-01-11 05:36:13,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:13,928 INFO L276 IsEmpty]: Start isEmpty. Operand 64264 states and 120295 transitions. [2022-01-11 05:36:13,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-11 05:36:13,929 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:13,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:36:13,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:36:13,929 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:13,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:13,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1476520051, now seen corresponding path program 1 times [2022-01-11 05:36:13,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:13,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798877589] [2022-01-11 05:36:13,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:13,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:14,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:14,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:14,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798877589] [2022-01-11 05:36:14,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798877589] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:14,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:14,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:36:14,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156144158] [2022-01-11 05:36:14,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:14,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:36:14,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:14,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:36:14,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:36:14,191 INFO L87 Difference]: Start difference. First operand 64264 states and 120295 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:17,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:17,713 INFO L93 Difference]: Finished difference Result 151068 states and 282803 transitions. [2022-01-11 05:36:17,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:36:17,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-01-11 05:36:17,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted.