/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec1_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:32:06,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:32:06,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:32:06,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:32:06,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:32:06,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:32:06,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:32:06,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:32:06,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:32:06,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:32:06,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:32:06,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:32:06,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:32:06,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:32:06,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:32:06,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:32:06,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:32:06,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:32:06,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:32:06,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:32:06,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:32:06,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:32:06,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:32:06,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:32:06,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:32:06,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:32:06,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:32:06,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:32:06,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:32:06,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:32:06,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:32:06,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:32:06,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:32:06,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:32:06,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:32:06,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:32:06,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:32:06,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:32:06,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:32:06,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:32:06,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:32:06,185 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:32:06,219 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:32:06,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:32:06,220 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:32:06,220 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:32:06,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:32:06,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:32:06,221 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:32:06,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:32:06,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:32:06,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:32:06,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:32:06,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:32:06,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:32:06,222 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:32:06,222 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:32:06,222 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:32:06,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:32:06,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:32:06,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:32:06,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:32:06,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:32:06,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:32:06,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:32:06,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:32:06,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:32:06,224 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:32:06,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:32:06,224 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:32:06,224 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:32:06,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:32:06,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:32:06,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:32:06,225 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:32:06,226 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:32:06,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:32:06,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:32:06,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:32:06,460 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:32:06,461 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:32:06,462 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product24.cil.c [2022-01-11 05:32:06,531 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f75c4680/9d0fdd4f5ebd4781b53093e336b48bfe/FLAGda35897f4 [2022-01-11 05:32:07,062 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:32:07,063 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product24.cil.c [2022-01-11 05:32:07,086 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f75c4680/9d0fdd4f5ebd4781b53093e336b48bfe/FLAGda35897f4 [2022-01-11 05:32:07,563 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f75c4680/9d0fdd4f5ebd4781b53093e336b48bfe [2022-01-11 05:32:07,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:32:07,568 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:32:07,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:32:07,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:32:07,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:32:07,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:32:07" (1/1) ... [2022-01-11 05:32:07,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48a90cc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:07, skipping insertion in model container [2022-01-11 05:32:07,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:32:07" (1/1) ... [2022-01-11 05:32:07,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:32:07,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:32:07,832 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product24.cil.c[11232,11245] [2022-01-11 05:32:07,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:32:07,967 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:32:07,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:32:08,009 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product24.cil.c[11232,11245] [2022-01-11 05:32:08,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:32:08,127 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:32:08,165 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product24.cil.c[11232,11245] [2022-01-11 05:32:08,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:32:08,250 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:32:08,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:08 WrapperNode [2022-01-11 05:32:08,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:32:08,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:32:08,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:32:08,252 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:32:08,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:08" (1/1) ... [2022-01-11 05:32:08,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:08" (1/1) ... [2022-01-11 05:32:08,582 INFO L137 Inliner]: procedures = 100, calls = 354, calls flagged for inlining = 206, calls inlined = 788, statements flattened = 26527 [2022-01-11 05:32:08,583 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:32:08,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:32:08,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:32:08,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:32:08,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:08" (1/1) ... [2022-01-11 05:32:08,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:08" (1/1) ... [2022-01-11 05:32:08,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:08" (1/1) ... [2022-01-11 05:32:08,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:08" (1/1) ... [2022-01-11 05:32:08,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:08" (1/1) ... [2022-01-11 05:32:08,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:08" (1/1) ... [2022-01-11 05:32:09,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:08" (1/1) ... [2022-01-11 05:32:09,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:32:09,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:32:09,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:32:09,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:32:09,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:08" (1/1) ... [2022-01-11 05:32:09,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:32:09,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:32:09,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:32:09,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:32:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:32:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:32:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:32:09,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:32:09,361 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:32:09,363 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:32:17,899 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:32:17,983 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:32:17,983 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:32:18,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:32:18 BoogieIcfgContainer [2022-01-11 05:32:18,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:32:18,006 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:32:18,006 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:32:18,008 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:32:18,010 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:32:18" (1/1) ... [2022-01-11 05:32:19,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:32:19 BasicIcfg [2022-01-11 05:32:19,184 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:32:19,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:32:19,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:32:19,187 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:32:19,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:32:07" (1/4) ... [2022-01-11 05:32:19,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51997723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:32:19, skipping insertion in model container [2022-01-11 05:32:19,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:08" (2/4) ... [2022-01-11 05:32:19,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51997723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:32:19, skipping insertion in model container [2022-01-11 05:32:19,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:32:18" (3/4) ... [2022-01-11 05:32:19,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51997723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:32:19, skipping insertion in model container [2022-01-11 05:32:19,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:32:19" (4/4) ... [2022-01-11 05:32:19,189 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product24.cil.cTransformedIcfg [2022-01-11 05:32:19,192 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:32:19,193 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-11 05:32:19,247 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:32:19,254 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:32:19,254 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-11 05:32:19,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 7025 states, 7019 states have (on average 1.8751958968514033) internal successors, (13162), 7024 states have internal predecessors, (13162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:19,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-11 05:32:19,356 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:19,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:19,357 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:19,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:19,363 INFO L85 PathProgramCache]: Analyzing trace with hash 84886726, now seen corresponding path program 1 times [2022-01-11 05:32:19,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:19,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290493971] [2022-01-11 05:32:19,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:19,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:19,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:19,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:19,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290493971] [2022-01-11 05:32:19,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290493971] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:19,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:19,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:19,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702048013] [2022-01-11 05:32:19,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:19,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:19,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:19,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:19,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:19,717 INFO L87 Difference]: Start difference. First operand has 7025 states, 7019 states have (on average 1.8751958968514033) internal successors, (13162), 7024 states have internal predecessors, (13162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:20,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:20,241 INFO L93 Difference]: Finished difference Result 20980 states and 39326 transitions. [2022-01-11 05:32:20,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:20,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-01-11 05:32:20,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:20,633 INFO L225 Difference]: With dead ends: 20980 [2022-01-11 05:32:20,633 INFO L226 Difference]: Without dead ends: 13957 [2022-01-11 05:32:20,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:20,652 INFO L933 BasicCegarLoop]: 26159 mSDtfsCounter, 13123 mSDsluCounter, 13029 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13123 SdHoareTripleChecker+Valid, 39188 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:20,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13123 Valid, 39188 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:20,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13957 states. [2022-01-11 05:32:20,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13957 to 7014. [2022-01-11 05:32:20,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7014 states, 7009 states have (on average 1.87444713939221) internal successors, (13138), 7013 states have internal predecessors, (13138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:21,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7014 states to 7014 states and 13138 transitions. [2022-01-11 05:32:21,033 INFO L78 Accepts]: Start accepts. Automaton has 7014 states and 13138 transitions. Word has length 46 [2022-01-11 05:32:21,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:21,034 INFO L470 AbstractCegarLoop]: Abstraction has 7014 states and 13138 transitions. [2022-01-11 05:32:21,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:21,034 INFO L276 IsEmpty]: Start isEmpty. Operand 7014 states and 13138 transitions. [2022-01-11 05:32:21,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-11 05:32:21,036 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:21,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:21,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:32:21,037 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:21,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:21,038 INFO L85 PathProgramCache]: Analyzing trace with hash 423945311, now seen corresponding path program 1 times [2022-01-11 05:32:21,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:21,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182511491] [2022-01-11 05:32:21,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:21,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:21,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:21,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:21,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182511491] [2022-01-11 05:32:21,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182511491] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:21,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:21,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:21,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952407016] [2022-01-11 05:32:21,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:21,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:21,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:21,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:21,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:21,157 INFO L87 Difference]: Start difference. First operand 7014 states and 13138 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:21,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:21,642 INFO L93 Difference]: Finished difference Result 20885 states and 39134 transitions. [2022-01-11 05:32:21,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:21,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2022-01-11 05:32:21,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:21,705 INFO L225 Difference]: With dead ends: 20885 [2022-01-11 05:32:21,705 INFO L226 Difference]: Without dead ends: 13921 [2022-01-11 05:32:21,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:21,719 INFO L933 BasicCegarLoop]: 26022 mSDtfsCounter, 13025 mSDsluCounter, 12969 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13025 SdHoareTripleChecker+Valid, 38991 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:21,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13025 Valid, 38991 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:21,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13921 states. [2022-01-11 05:32:21,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13921 to 7014. [2022-01-11 05:32:21,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7014 states, 7009 states have (on average 1.870880296761307) internal successors, (13113), 7013 states have internal predecessors, (13113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:21,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7014 states to 7014 states and 13113 transitions. [2022-01-11 05:32:21,911 INFO L78 Accepts]: Start accepts. Automaton has 7014 states and 13113 transitions. Word has length 53 [2022-01-11 05:32:21,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:21,912 INFO L470 AbstractCegarLoop]: Abstraction has 7014 states and 13113 transitions. [2022-01-11 05:32:21,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:21,915 INFO L276 IsEmpty]: Start isEmpty. Operand 7014 states and 13113 transitions. [2022-01-11 05:32:21,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 05:32:21,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:21,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:21,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:32:21,924 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:21,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:21,924 INFO L85 PathProgramCache]: Analyzing trace with hash 241815584, now seen corresponding path program 1 times [2022-01-11 05:32:21,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:21,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636104889] [2022-01-11 05:32:21,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:21,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:21,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:21,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:21,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636104889] [2022-01-11 05:32:21,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636104889] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:21,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:21,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:21,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398868123] [2022-01-11 05:32:21,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:21,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:21,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:21,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:21,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:21,989 INFO L87 Difference]: Start difference. First operand 7014 states and 13113 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:22,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:22,221 INFO L93 Difference]: Finished difference Result 13957 states and 26128 transitions. [2022-01-11 05:32:22,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:22,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2022-01-11 05:32:22,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:22,237 INFO L225 Difference]: With dead ends: 13957 [2022-01-11 05:32:22,238 INFO L226 Difference]: Without dead ends: 7014 [2022-01-11 05:32:22,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:22,247 INFO L933 BasicCegarLoop]: 13094 mSDtfsCounter, 13102 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13102 SdHoareTripleChecker+Valid, 13101 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:22,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13102 Valid, 13101 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:22,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7014 states. [2022-01-11 05:32:22,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7014 to 7014. [2022-01-11 05:32:22,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7014 states, 7009 states have (on average 1.8705949493508347) internal successors, (13111), 7013 states have internal predecessors, (13111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:22,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7014 states to 7014 states and 13111 transitions. [2022-01-11 05:32:22,374 INFO L78 Accepts]: Start accepts. Automaton has 7014 states and 13111 transitions. Word has length 56 [2022-01-11 05:32:22,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:22,374 INFO L470 AbstractCegarLoop]: Abstraction has 7014 states and 13111 transitions. [2022-01-11 05:32:22,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:22,374 INFO L276 IsEmpty]: Start isEmpty. Operand 7014 states and 13111 transitions. [2022-01-11 05:32:22,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:32:22,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:22,376 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:22,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:32:22,376 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:22,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:22,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1650232122, now seen corresponding path program 1 times [2022-01-11 05:32:22,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:22,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107964999] [2022-01-11 05:32:22,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:22,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:22,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:22,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:22,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:22,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107964999] [2022-01-11 05:32:22,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107964999] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:22,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:22,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:22,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731389764] [2022-01-11 05:32:22,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:22,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:22,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:22,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:22,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:22,422 INFO L87 Difference]: Start difference. First operand 7014 states and 13111 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:22,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:22,729 INFO L93 Difference]: Finished difference Result 13921 states and 26055 transitions. [2022-01-11 05:32:22,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:22,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-11 05:32:22,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:22,746 INFO L225 Difference]: With dead ends: 13921 [2022-01-11 05:32:22,746 INFO L226 Difference]: Without dead ends: 7014 [2022-01-11 05:32:22,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:22,756 INFO L933 BasicCegarLoop]: 13016 mSDtfsCounter, 13083 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13083 SdHoareTripleChecker+Valid, 13031 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:22,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13083 Valid, 13031 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:22,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7014 states. [2022-01-11 05:32:22,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7014 to 7014. [2022-01-11 05:32:22,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7014 states, 7009 states have (on average 1.8691682122984734) internal successors, (13101), 7013 states have internal predecessors, (13101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:22,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7014 states to 7014 states and 13101 transitions. [2022-01-11 05:32:22,918 INFO L78 Accepts]: Start accepts. Automaton has 7014 states and 13101 transitions. Word has length 58 [2022-01-11 05:32:22,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:22,918 INFO L470 AbstractCegarLoop]: Abstraction has 7014 states and 13101 transitions. [2022-01-11 05:32:22,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:22,918 INFO L276 IsEmpty]: Start isEmpty. Operand 7014 states and 13101 transitions. [2022-01-11 05:32:22,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-11 05:32:22,920 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:22,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:22,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:32:22,920 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:22,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:22,920 INFO L85 PathProgramCache]: Analyzing trace with hash 327825212, now seen corresponding path program 1 times [2022-01-11 05:32:22,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:22,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067002986] [2022-01-11 05:32:22,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:22,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:22,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:22,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:22,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:22,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067002986] [2022-01-11 05:32:22,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067002986] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:22,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:22,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:22,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810487229] [2022-01-11 05:32:22,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:22,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:22,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:22,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:22,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:22,987 INFO L87 Difference]: Start difference. First operand 7014 states and 13101 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:23,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:23,335 INFO L93 Difference]: Finished difference Result 17453 states and 32656 transitions. [2022-01-11 05:32:23,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:23,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-11 05:32:23,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:23,367 INFO L225 Difference]: With dead ends: 17453 [2022-01-11 05:32:23,367 INFO L226 Difference]: Without dead ends: 13954 [2022-01-11 05:32:23,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:23,381 INFO L933 BasicCegarLoop]: 19610 mSDtfsCounter, 13079 mSDsluCounter, 13009 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13079 SdHoareTripleChecker+Valid, 32619 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:23,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13079 Valid, 32619 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:23,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13954 states. [2022-01-11 05:32:23,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13954 to 13954. [2022-01-11 05:32:23,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13954 states, 13949 states have (on average 1.8717470786436303) internal successors, (26109), 13953 states have internal predecessors, (26109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:23,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13954 states to 13954 states and 26109 transitions. [2022-01-11 05:32:23,776 INFO L78 Accepts]: Start accepts. Automaton has 13954 states and 26109 transitions. Word has length 60 [2022-01-11 05:32:23,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:23,778 INFO L470 AbstractCegarLoop]: Abstraction has 13954 states and 26109 transitions. [2022-01-11 05:32:23,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:23,778 INFO L276 IsEmpty]: Start isEmpty. Operand 13954 states and 26109 transitions. [2022-01-11 05:32:23,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 05:32:23,780 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:23,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:23,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:32:23,780 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:23,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:23,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1572681866, now seen corresponding path program 1 times [2022-01-11 05:32:23,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:23,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146765206] [2022-01-11 05:32:23,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:23,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:23,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:23,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:23,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146765206] [2022-01-11 05:32:23,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146765206] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:23,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:23,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:23,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667722064] [2022-01-11 05:32:23,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:23,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:23,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:23,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:23,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:23,853 INFO L87 Difference]: Start difference. First operand 13954 states and 26109 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:24,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:24,299 INFO L93 Difference]: Finished difference Result 34750 states and 65086 transitions. [2022-01-11 05:32:24,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:24,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-11 05:32:24,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:24,370 INFO L225 Difference]: With dead ends: 34750 [2022-01-11 05:32:24,371 INFO L226 Difference]: Without dead ends: 27776 [2022-01-11 05:32:24,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:24,391 INFO L933 BasicCegarLoop]: 13098 mSDtfsCounter, 13035 mSDsluCounter, 13012 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13035 SdHoareTripleChecker+Valid, 26110 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:24,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13035 Valid, 26110 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:24,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27776 states. [2022-01-11 05:32:24,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27776 to 27774. [2022-01-11 05:32:24,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27774 states, 27769 states have (on average 1.8734200007202275) internal successors, (52023), 27773 states have internal predecessors, (52023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:25,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27774 states to 27774 states and 52023 transitions. [2022-01-11 05:32:25,065 INFO L78 Accepts]: Start accepts. Automaton has 27774 states and 52023 transitions. Word has length 61 [2022-01-11 05:32:25,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:25,066 INFO L470 AbstractCegarLoop]: Abstraction has 27774 states and 52023 transitions. [2022-01-11 05:32:25,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:25,066 INFO L276 IsEmpty]: Start isEmpty. Operand 27774 states and 52023 transitions. [2022-01-11 05:32:25,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 05:32:25,069 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:25,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:25,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:32:25,069 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:25,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:25,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1404882237, now seen corresponding path program 1 times [2022-01-11 05:32:25,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:25,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158784818] [2022-01-11 05:32:25,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:25,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:25,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:25,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:25,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158784818] [2022-01-11 05:32:25,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158784818] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:25,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:25,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:32:25,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629725806] [2022-01-11 05:32:25,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:25,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:32:25,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:25,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:32:25,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:25,155 INFO L87 Difference]: Start difference. First operand 27774 states and 52023 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:27,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:27,694 INFO L93 Difference]: Finished difference Result 165860 states and 310933 transitions. [2022-01-11 05:32:27,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:32:27,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-11 05:32:27,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:28,203 INFO L225 Difference]: With dead ends: 165860 [2022-01-11 05:32:28,204 INFO L226 Difference]: Without dead ends: 138115 [2022-01-11 05:32:28,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:32:28,287 INFO L933 BasicCegarLoop]: 51951 mSDtfsCounter, 39023 mSDsluCounter, 64903 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39023 SdHoareTripleChecker+Valid, 116854 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:28,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39023 Valid, 116854 Invalid, 56 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:28,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138115 states. [2022-01-11 05:32:29,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138115 to 27762. [2022-01-11 05:32:29,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27762 states, 27757 states have (on average 1.8736534928126238) internal successors, (52007), 27761 states have internal predecessors, (52007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:29,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27762 states to 27762 states and 52007 transitions. [2022-01-11 05:32:29,971 INFO L78 Accepts]: Start accepts. Automaton has 27762 states and 52007 transitions. Word has length 61 [2022-01-11 05:32:29,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:29,971 INFO L470 AbstractCegarLoop]: Abstraction has 27762 states and 52007 transitions. [2022-01-11 05:32:29,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:29,972 INFO L276 IsEmpty]: Start isEmpty. Operand 27762 states and 52007 transitions. [2022-01-11 05:32:29,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 05:32:29,974 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:29,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:29,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:32:29,975 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:29,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:29,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1163293485, now seen corresponding path program 1 times [2022-01-11 05:32:29,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:29,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973252786] [2022-01-11 05:32:29,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:29,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:30,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:30,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:30,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973252786] [2022-01-11 05:32:30,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973252786] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:30,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:30,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:32:30,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543362875] [2022-01-11 05:32:30,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:30,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:32:30,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:30,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:32:30,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:32:30,083 INFO L87 Difference]: Start difference. First operand 27762 states and 52007 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:33,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:33,282 INFO L93 Difference]: Finished difference Result 138190 states and 259069 transitions. [2022-01-11 05:32:33,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:32:33,283 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-01-11 05:32:33,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:33,571 INFO L225 Difference]: With dead ends: 138190 [2022-01-11 05:32:33,571 INFO L226 Difference]: Without dead ends: 110457 [2022-01-11 05:32:33,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:32:33,623 INFO L933 BasicCegarLoop]: 51841 mSDtfsCounter, 78032 mSDsluCounter, 51811 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78032 SdHoareTripleChecker+Valid, 103652 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:33,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78032 Valid, 103652 Invalid, 136 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:33,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110457 states. [2022-01-11 05:32:35,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110457 to 27762. [2022-01-11 05:32:35,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27762 states, 27757 states have (on average 1.873041034693951) internal successors, (51990), 27761 states have internal predecessors, (51990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:35,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27762 states to 27762 states and 51990 transitions. [2022-01-11 05:32:35,207 INFO L78 Accepts]: Start accepts. Automaton has 27762 states and 51990 transitions. Word has length 63 [2022-01-11 05:32:35,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:35,207 INFO L470 AbstractCegarLoop]: Abstraction has 27762 states and 51990 transitions. [2022-01-11 05:32:35,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:35,208 INFO L276 IsEmpty]: Start isEmpty. Operand 27762 states and 51990 transitions. [2022-01-11 05:32:35,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 05:32:35,211 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:35,211 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:35,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:32:35,211 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:35,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:35,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1287366732, now seen corresponding path program 1 times [2022-01-11 05:32:35,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:35,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476793693] [2022-01-11 05:32:35,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:35,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:35,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:35,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:35,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476793693] [2022-01-11 05:32:35,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476793693] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:35,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:35,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:32:35,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137940554] [2022-01-11 05:32:35,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:35,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:32:35,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:35,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:32:35,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:32:35,277 INFO L87 Difference]: Start difference. First operand 27762 states and 51990 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:37,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:37,787 INFO L93 Difference]: Finished difference Result 110760 states and 207541 transitions. [2022-01-11 05:32:37,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:32:37,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-01-11 05:32:37,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:37,965 INFO L225 Difference]: With dead ends: 110760 [2022-01-11 05:32:37,966 INFO L226 Difference]: Without dead ends: 83021 [2022-01-11 05:32:38,014 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 05:32:38,015 INFO L933 BasicCegarLoop]: 13086 mSDtfsCounter, 39041 mSDsluCounter, 38997 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39041 SdHoareTripleChecker+Valid, 52083 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:38,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39041 Valid, 52083 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:38,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83021 states. [2022-01-11 05:32:39,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83021 to 27770. [2022-01-11 05:32:39,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27770 states, 27765 states have (on average 1.8726814334593913) internal successors, (51995), 27769 states have internal predecessors, (51995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:39,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27770 states to 27770 states and 51995 transitions. [2022-01-11 05:32:39,503 INFO L78 Accepts]: Start accepts. Automaton has 27770 states and 51995 transitions. Word has length 63 [2022-01-11 05:32:39,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:39,503 INFO L470 AbstractCegarLoop]: Abstraction has 27770 states and 51995 transitions. [2022-01-11 05:32:39,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:39,504 INFO L276 IsEmpty]: Start isEmpty. Operand 27770 states and 51995 transitions. [2022-01-11 05:32:39,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 05:32:39,506 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:39,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:39,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:32:39,507 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:39,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:39,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1678788018, now seen corresponding path program 1 times [2022-01-11 05:32:39,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:39,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096089329] [2022-01-11 05:32:39,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:39,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:39,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:39,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:39,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096089329] [2022-01-11 05:32:39,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096089329] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:39,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:39,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:32:39,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58126245] [2022-01-11 05:32:39,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:39,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:32:39,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:39,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:32:39,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:32:39,592 INFO L87 Difference]: Start difference. First operand 27770 states and 51995 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:43,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:43,484 INFO L93 Difference]: Finished difference Result 138277 states and 259145 transitions. [2022-01-11 05:32:43,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:32:43,485 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-11 05:32:43,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:43,747 INFO L225 Difference]: With dead ends: 138277 [2022-01-11 05:32:43,748 INFO L226 Difference]: Without dead ends: 110523 [2022-01-11 05:32:43,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:32:43,802 INFO L933 BasicCegarLoop]: 51910 mSDtfsCounter, 65052 mSDsluCounter, 38926 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65052 SdHoareTripleChecker+Valid, 90836 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:43,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65052 Valid, 90836 Invalid, 33 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:43,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110523 states. [2022-01-11 05:32:45,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110523 to 27762. [2022-01-11 05:32:45,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27762 states, 27757 states have (on average 1.8727528191086933) internal successors, (51982), 27761 states have internal predecessors, (51982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:45,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27762 states to 27762 states and 51982 transitions. [2022-01-11 05:32:45,598 INFO L78 Accepts]: Start accepts. Automaton has 27762 states and 51982 transitions. Word has length 64 [2022-01-11 05:32:45,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:45,598 INFO L470 AbstractCegarLoop]: Abstraction has 27762 states and 51982 transitions. [2022-01-11 05:32:45,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:45,599 INFO L276 IsEmpty]: Start isEmpty. Operand 27762 states and 51982 transitions. [2022-01-11 05:32:45,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-11 05:32:45,602 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:45,602 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:45,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:32:45,602 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:45,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:45,603 INFO L85 PathProgramCache]: Analyzing trace with hash -537138836, now seen corresponding path program 1 times [2022-01-11 05:32:45,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:45,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281924360] [2022-01-11 05:32:45,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:45,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:45,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:45,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:45,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281924360] [2022-01-11 05:32:45,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281924360] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:45,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:45,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:32:45,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036742238] [2022-01-11 05:32:45,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:45,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:32:45,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:45,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:32:45,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:32:45,809 INFO L87 Difference]: Start difference. First operand 27762 states and 51982 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:47,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:47,888 INFO L93 Difference]: Finished difference Result 82910 states and 155401 transitions. [2022-01-11 05:32:47,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:32:47,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-01-11 05:32:47,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:47,995 INFO L225 Difference]: With dead ends: 82910 [2022-01-11 05:32:47,995 INFO L226 Difference]: Without dead ends: 55327 [2022-01-11 05:32:48,019 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 05:32:48,020 INFO L933 BasicCegarLoop]: 13047 mSDtfsCounter, 25958 mSDsluCounter, 26028 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25958 SdHoareTripleChecker+Valid, 39075 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:48,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25958 Valid, 39075 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:48,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55327 states. [2022-01-11 05:32:49,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55327 to 27762. [2022-01-11 05:32:49,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27762 states, 27757 states have (on average 1.8726447382642217) internal successors, (51979), 27761 states have internal predecessors, (51979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:49,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27762 states to 27762 states and 51979 transitions. [2022-01-11 05:32:49,446 INFO L78 Accepts]: Start accepts. Automaton has 27762 states and 51979 transitions. Word has length 65 [2022-01-11 05:32:49,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:49,446 INFO L470 AbstractCegarLoop]: Abstraction has 27762 states and 51979 transitions. [2022-01-11 05:32:49,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:49,447 INFO L276 IsEmpty]: Start isEmpty. Operand 27762 states and 51979 transitions. [2022-01-11 05:32:49,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-11 05:32:49,450 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:49,450 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:49,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:32:49,450 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:49,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:49,450 INFO L85 PathProgramCache]: Analyzing trace with hash -2017201968, now seen corresponding path program 1 times [2022-01-11 05:32:49,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:49,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048294531] [2022-01-11 05:32:49,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:49,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:49,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:49,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:49,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048294531] [2022-01-11 05:32:49,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048294531] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:49,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:49,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:32:49,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734888334] [2022-01-11 05:32:49,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:49,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:32:49,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:49,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:32:49,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:32:49,514 INFO L87 Difference]: Start difference. First operand 27762 states and 51979 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:52,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:52,993 INFO L93 Difference]: Finished difference Result 110457 states and 207067 transitions. [2022-01-11 05:32:52,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:32:52,993 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-01-11 05:32:52,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:53,172 INFO L225 Difference]: With dead ends: 110457 [2022-01-11 05:32:53,172 INFO L226 Difference]: Without dead ends: 82850 [2022-01-11 05:32:53,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:32:53,212 INFO L933 BasicCegarLoop]: 13028 mSDtfsCounter, 51858 mSDsluCounter, 39006 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51858 SdHoareTripleChecker+Valid, 52034 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:53,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51858 Valid, 52034 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:53,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82850 states. [2022-01-11 05:32:54,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82850 to 27720. [2022-01-11 05:32:54,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27720 states, 27715 states have (on average 1.8729929640988634) internal successors, (51910), 27719 states have internal predecessors, (51910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:54,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27720 states to 27720 states and 51910 transitions. [2022-01-11 05:32:54,658 INFO L78 Accepts]: Start accepts. Automaton has 27720 states and 51910 transitions. Word has length 65 [2022-01-11 05:32:54,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:54,658 INFO L470 AbstractCegarLoop]: Abstraction has 27720 states and 51910 transitions. [2022-01-11 05:32:54,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:54,659 INFO L276 IsEmpty]: Start isEmpty. Operand 27720 states and 51910 transitions. [2022-01-11 05:32:54,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-11 05:32:54,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:54,661 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:54,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:32:54,662 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:54,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:54,662 INFO L85 PathProgramCache]: Analyzing trace with hash 533780809, now seen corresponding path program 1 times [2022-01-11 05:32:54,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:54,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200803583] [2022-01-11 05:32:54,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:54,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:54,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:54,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:54,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200803583] [2022-01-11 05:32:54,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200803583] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:54,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:54,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:32:54,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509882330] [2022-01-11 05:32:54,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:54,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:32:54,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:54,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:32:54,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:54,718 INFO L87 Difference]: Start difference. First operand 27720 states and 51910 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:58,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:58,828 INFO L93 Difference]: Finished difference Result 110481 states and 207068 transitions. [2022-01-11 05:32:58,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:32:58,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-01-11 05:32:58,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:58,993 INFO L225 Difference]: With dead ends: 110481 [2022-01-11 05:32:58,993 INFO L226 Difference]: Without dead ends: 82808 [2022-01-11 05:32:59,034 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 05:32:59,036 INFO L933 BasicCegarLoop]: 25928 mSDtfsCounter, 51967 mSDsluCounter, 38834 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51967 SdHoareTripleChecker+Valid, 64762 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:59,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51967 Valid, 64762 Invalid, 51 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:59,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82808 states. [2022-01-11 05:33:00,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82808 to 27746. [2022-01-11 05:33:00,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27746 states, 27741 states have (on average 1.8726073321077106) internal successors, (51948), 27745 states have internal predecessors, (51948), 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 05:33:00,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27746 states to 27746 states and 51948 transitions. [2022-01-11 05:33:00,725 INFO L78 Accepts]: Start accepts. Automaton has 27746 states and 51948 transitions. Word has length 66 [2022-01-11 05:33:00,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:00,725 INFO L470 AbstractCegarLoop]: Abstraction has 27746 states and 51948 transitions. [2022-01-11 05:33:00,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:00,725 INFO L276 IsEmpty]: Start isEmpty. Operand 27746 states and 51948 transitions. [2022-01-11 05:33:00,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-11 05:33:00,728 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:00,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:00,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:33:00,728 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:00,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:00,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1446716680, now seen corresponding path program 1 times [2022-01-11 05:33:00,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:00,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149760031] [2022-01-11 05:33:00,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:00,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:00,775 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 05:33:00,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:00,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149760031] [2022-01-11 05:33:00,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149760031] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:00,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:00,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:33:00,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345079831] [2022-01-11 05:33:00,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:00,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:33:00,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:00,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:33:00,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:00,777 INFO L87 Difference]: Start difference. First operand 27746 states and 51948 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 05:33:02,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:02,414 INFO L93 Difference]: Finished difference Result 55311 states and 103640 transitions. [2022-01-11 05:33:02,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:02,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2022-01-11 05:33:02,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:02,459 INFO L225 Difference]: With dead ends: 55311 [2022-01-11 05:33:02,459 INFO L226 Difference]: Without dead ends: 27660 [2022-01-11 05:33:02,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:02,483 INFO L933 BasicCegarLoop]: 13003 mSDtfsCounter, 25918 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25918 SdHoareTripleChecker+Valid, 13042 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:02,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25918 Valid, 13042 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:02,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27660 states. [2022-01-11 05:33:03,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27660 to 27660. [2022-01-11 05:33:03,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27660 states, 27655 states have (on average 1.8735490869643825) internal successors, (51813), 27659 states have internal predecessors, (51813), 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 05:33:03,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27660 states to 27660 states and 51813 transitions. [2022-01-11 05:33:03,888 INFO L78 Accepts]: Start accepts. Automaton has 27660 states and 51813 transitions. Word has length 67 [2022-01-11 05:33:03,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:03,888 INFO L470 AbstractCegarLoop]: Abstraction has 27660 states and 51813 transitions. [2022-01-11 05:33:03,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 05:33:03,888 INFO L276 IsEmpty]: Start isEmpty. Operand 27660 states and 51813 transitions. [2022-01-11 05:33:03,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-11 05:33:03,890 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:03,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:03,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:33:03,891 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:03,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:03,891 INFO L85 PathProgramCache]: Analyzing trace with hash -970595185, now seen corresponding path program 1 times [2022-01-11 05:33:03,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:03,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563815120] [2022-01-11 05:33:03,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:03,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:03,937 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 05:33:03,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:03,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563815120] [2022-01-11 05:33:03,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563815120] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:03,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:03,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:33:03,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816325792] [2022-01-11 05:33:03,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:03,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:33:03,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:03,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:33:03,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:33:03,939 INFO L87 Difference]: Start difference. First operand 27660 states and 51813 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 05:33:05,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:05,394 INFO L93 Difference]: Finished difference Result 55234 states and 103492 transitions. [2022-01-11 05:33:05,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:33:05,394 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 68 [2022-01-11 05:33:05,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:05,451 INFO L225 Difference]: With dead ends: 55234 [2022-01-11 05:33:05,451 INFO L226 Difference]: Without dead ends: 27711 [2022-01-11 05:33:05,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 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 05:33:05,482 INFO L933 BasicCegarLoop]: 13006 mSDtfsCounter, 51881 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51881 SdHoareTripleChecker+Valid, 13106 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:05,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51881 Valid, 13106 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:05,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27711 states. [2022-01-11 05:33:06,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27711 to 27660. [2022-01-11 05:33:07,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27660 states, 27655 states have (on average 1.8734044476586513) internal successors, (51809), 27659 states have internal predecessors, (51809), 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 05:33:07,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27660 states to 27660 states and 51809 transitions. [2022-01-11 05:33:07,052 INFO L78 Accepts]: Start accepts. Automaton has 27660 states and 51809 transitions. Word has length 68 [2022-01-11 05:33:07,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:07,052 INFO L470 AbstractCegarLoop]: Abstraction has 27660 states and 51809 transitions. [2022-01-11 05:33:07,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 05:33:07,052 INFO L276 IsEmpty]: Start isEmpty. Operand 27660 states and 51809 transitions. [2022-01-11 05:33:07,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-11 05:33:07,054 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:07,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:07,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:33:07,055 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:07,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:07,055 INFO L85 PathProgramCache]: Analyzing trace with hash 431914448, now seen corresponding path program 1 times [2022-01-11 05:33:07,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:07,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874831124] [2022-01-11 05:33:07,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:07,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms