/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/combinations/Problem05_label46+token_ring.07.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 07:10:20,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 07:10:20,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 07:10:20,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 07:10:20,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 07:10:20,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 07:10:20,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 07:10:20,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 07:10:20,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 07:10:20,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 07:10:20,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 07:10:20,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 07:10:20,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 07:10:20,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 07:10:20,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 07:10:20,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 07:10:20,089 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 07:10:20,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 07:10:20,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 07:10:20,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 07:10:20,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 07:10:20,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 07:10:20,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 07:10:20,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 07:10:20,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 07:10:20,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 07:10:20,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 07:10:20,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 07:10:20,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 07:10:20,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 07:10:20,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 07:10:20,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 07:10:20,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 07:10:20,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 07:10:20,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 07:10:20,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 07:10:20,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 07:10:20,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 07:10:20,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 07:10:20,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 07:10:20,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 07:10:20,112 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 07:10:20,137 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 07:10:20,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 07:10:20,138 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 07:10:20,138 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 07:10:20,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 07:10:20,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 07:10:20,140 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 07:10:20,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 07:10:20,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 07:10:20,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 07:10:20,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 07:10:20,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 07:10:20,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 07:10:20,141 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 07:10:20,141 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 07:10:20,142 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 07:10:20,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 07:10:20,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 07:10:20,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 07:10:20,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 07:10:20,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 07:10:20,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:10:20,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 07:10:20,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 07:10:20,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 07:10:20,143 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 07:10:20,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 07:10:20,143 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 07:10:20,143 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 07:10:20,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 07:10:20,143 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 07:10:20,144 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 07:10:20,144 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 07:10:20,144 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 07:10:20,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 07:10:20,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 07:10:20,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 07:10:20,372 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 07:10:20,372 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 07:10:20,373 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label46+token_ring.07.cil-2.c [2022-01-11 07:10:20,431 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ebf7c3de/60d7877949664df9908b0ac46c7def34/FLAG56a9e2292 [2022-01-11 07:10:21,175 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 07:10:21,175 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.07.cil-2.c [2022-01-11 07:10:21,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ebf7c3de/60d7877949664df9908b0ac46c7def34/FLAG56a9e2292 [2022-01-11 07:10:21,454 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ebf7c3de/60d7877949664df9908b0ac46c7def34 [2022-01-11 07:10:21,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 07:10:21,458 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 07:10:21,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 07:10:21,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 07:10:21,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 07:10:21,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:10:21" (1/1) ... [2022-01-11 07:10:21,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf371b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:21, skipping insertion in model container [2022-01-11 07:10:21,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:10:21" (1/1) ... [2022-01-11 07:10:21,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 07:10:21,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 07:10:23,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.07.cil-2.c[382357,382370] [2022-01-11 07:10:23,128 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.07.cil-2.c[383339,383352] [2022-01-11 07:10:23,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:10:23,364 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 07:10:24,007 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.07.cil-2.c[382357,382370] [2022-01-11 07:10:24,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.07.cil-2.c[383339,383352] [2022-01-11 07:10:24,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:10:24,067 INFO L208 MainTranslator]: Completed translation [2022-01-11 07:10:24,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:24 WrapperNode [2022-01-11 07:10:24,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 07:10:24,069 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 07:10:24,069 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 07:10:24,069 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 07:10:24,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:24" (1/1) ... [2022-01-11 07:10:24,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:24" (1/1) ... [2022-01-11 07:10:24,485 INFO L137 Inliner]: procedures = 59, calls = 63, calls flagged for inlining = 58, calls inlined = 145, statements flattened = 14336 [2022-01-11 07:10:24,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 07:10:24,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 07:10:24,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 07:10:24,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 07:10:24,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:24" (1/1) ... [2022-01-11 07:10:24,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:24" (1/1) ... [2022-01-11 07:10:24,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:24" (1/1) ... [2022-01-11 07:10:24,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:24" (1/1) ... [2022-01-11 07:10:24,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:24" (1/1) ... [2022-01-11 07:10:24,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:24" (1/1) ... [2022-01-11 07:10:24,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:24" (1/1) ... [2022-01-11 07:10:24,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 07:10:24,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 07:10:24,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 07:10:24,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 07:10:24,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:24" (1/1) ... [2022-01-11 07:10:24,924 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:10:24,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 07:10:24,941 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 07:10:24,946 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 07:10:24,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 07:10:24,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 07:10:24,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 07:10:24,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 07:10:25,094 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 07:10:25,096 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 07:10:32,139 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 07:10:32,170 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 07:10:32,170 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2022-01-11 07:10:32,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:10:32 BoogieIcfgContainer [2022-01-11 07:10:32,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 07:10:32,176 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 07:10:32,177 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 07:10:32,178 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 07:10:32,180 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:10:32" (1/1) ... [2022-01-11 07:10:33,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:10:33 BasicIcfg [2022-01-11 07:10:33,594 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 07:10:33,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 07:10:33,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 07:10:33,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 07:10:33,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 07:10:21" (1/4) ... [2022-01-11 07:10:33,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b89532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:10:33, skipping insertion in model container [2022-01-11 07:10:33,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:24" (2/4) ... [2022-01-11 07:10:33,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b89532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:10:33, skipping insertion in model container [2022-01-11 07:10:33,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:10:32" (3/4) ... [2022-01-11 07:10:33,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b89532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 07:10:33, skipping insertion in model container [2022-01-11 07:10:33,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:10:33" (4/4) ... [2022-01-11 07:10:33,601 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.07.cil-2.cTransformedIcfg [2022-01-11 07:10:33,607 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 07:10:33,607 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 07:10:33,646 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 07:10:33,652 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 07:10:33,652 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 07:10:33,702 INFO L276 IsEmpty]: Start isEmpty. Operand has 3028 states, 3024 states have (on average 1.7744708994708995) internal successors, (5366), 3027 states have internal predecessors, (5366), 0 states have call successors, (0), 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 07:10:33,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:10:33,720 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:33,721 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:33,722 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:33,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:33,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1118785845, now seen corresponding path program 1 times [2022-01-11 07:10:33,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:33,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009657805] [2022-01-11 07:10:33,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:33,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:34,025 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 07:10:34,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:34,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009657805] [2022-01-11 07:10:34,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009657805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:34,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:34,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:34,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819251140] [2022-01-11 07:10:34,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:34,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:34,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:34,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:34,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:34,068 INFO L87 Difference]: Start difference. First operand has 3028 states, 3024 states have (on average 1.7744708994708995) internal successors, (5366), 3027 states have internal predecessors, (5366), 0 states have call successors, (0), 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 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:34,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:34,261 INFO L93 Difference]: Finished difference Result 6722 states and 11736 transitions. [2022-01-11 07:10:34,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:34,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:10:34,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:34,289 INFO L225 Difference]: With dead ends: 6722 [2022-01-11 07:10:34,289 INFO L226 Difference]: Without dead ends: 3638 [2022-01-11 07:10:34,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:34,301 INFO L933 BasicCegarLoop]: 5273 mSDtfsCounter, 5177 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5177 SdHoareTripleChecker+Valid, 6358 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:34,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5177 Valid, 6358 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:10:34,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3638 states. [2022-01-11 07:10:34,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3638 to 3634. [2022-01-11 07:10:34,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.710272652161939) internal successors, (6210), 3633 states have internal predecessors, (6210), 0 states have call successors, (0), 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 07:10:34,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6210 transitions. [2022-01-11 07:10:34,419 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6210 transitions. Word has length 110 [2022-01-11 07:10:34,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:34,419 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6210 transitions. [2022-01-11 07:10:34,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:34,420 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6210 transitions. [2022-01-11 07:10:34,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:10:34,422 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:34,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:34,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 07:10:34,423 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:34,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:34,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1296351509, now seen corresponding path program 1 times [2022-01-11 07:10:34,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:34,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401262394] [2022-01-11 07:10:34,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:34,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:34,513 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 07:10:34,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:34,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401262394] [2022-01-11 07:10:34,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401262394] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:34,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:34,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:34,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423840700] [2022-01-11 07:10:34,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:34,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:34,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:34,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:34,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:34,516 INFO L87 Difference]: Start difference. First operand 3634 states and 6210 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:34,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:34,694 INFO L93 Difference]: Finished difference Result 5132 states and 8438 transitions. [2022-01-11 07:10:34,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:34,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:10:34,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:34,705 INFO L225 Difference]: With dead ends: 5132 [2022-01-11 07:10:34,706 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:10:34,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:34,709 INFO L933 BasicCegarLoop]: 5200 mSDtfsCounter, 5190 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5190 SdHoareTripleChecker+Valid, 5200 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:34,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5190 Valid, 5200 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:34,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:10:34,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:10:34,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.7080694023684935) internal successors, (6202), 3633 states have internal predecessors, (6202), 0 states have call successors, (0), 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 07:10:34,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6202 transitions. [2022-01-11 07:10:34,780 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6202 transitions. Word has length 110 [2022-01-11 07:10:34,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:34,781 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6202 transitions. [2022-01-11 07:10:34,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:34,781 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6202 transitions. [2022-01-11 07:10:34,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:10:34,782 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:34,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:34,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 07:10:34,782 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:34,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:34,783 INFO L85 PathProgramCache]: Analyzing trace with hash -609342773, now seen corresponding path program 1 times [2022-01-11 07:10:34,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:34,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125578069] [2022-01-11 07:10:34,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:34,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:34,847 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 07:10:34,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:34,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125578069] [2022-01-11 07:10:34,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125578069] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:34,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:34,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:34,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716325280] [2022-01-11 07:10:34,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:34,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:34,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:34,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:34,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:34,850 INFO L87 Difference]: Start difference. First operand 3634 states and 6202 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:34,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:34,912 INFO L93 Difference]: Finished difference Result 5131 states and 8421 transitions. [2022-01-11 07:10:34,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:34,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:10:34,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:34,923 INFO L225 Difference]: With dead ends: 5131 [2022-01-11 07:10:34,924 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:10:34,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:34,927 INFO L933 BasicCegarLoop]: 5195 mSDtfsCounter, 5184 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5184 SdHoareTripleChecker+Valid, 5195 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:34,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5184 Valid, 5195 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:34,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:10:35,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:10:35,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.7058661525750483) internal successors, (6194), 3633 states have internal predecessors, (6194), 0 states have call successors, (0), 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 07:10:35,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6194 transitions. [2022-01-11 07:10:35,024 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6194 transitions. Word has length 110 [2022-01-11 07:10:35,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:35,024 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6194 transitions. [2022-01-11 07:10:35,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:35,025 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6194 transitions. [2022-01-11 07:10:35,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:10:35,026 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:35,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:35,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 07:10:35,026 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:35,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:35,027 INFO L85 PathProgramCache]: Analyzing trace with hash -725728533, now seen corresponding path program 1 times [2022-01-11 07:10:35,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:35,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25748680] [2022-01-11 07:10:35,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:35,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:35,089 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 07:10:35,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:35,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25748680] [2022-01-11 07:10:35,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25748680] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:35,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:35,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:35,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948977462] [2022-01-11 07:10:35,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:35,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:35,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:35,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:35,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:35,092 INFO L87 Difference]: Start difference. First operand 3634 states and 6194 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:35,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:35,152 INFO L93 Difference]: Finished difference Result 5130 states and 8404 transitions. [2022-01-11 07:10:35,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:35,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:10:35,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:35,162 INFO L225 Difference]: With dead ends: 5130 [2022-01-11 07:10:35,162 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:10:35,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:35,168 INFO L933 BasicCegarLoop]: 5190 mSDtfsCounter, 5178 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5178 SdHoareTripleChecker+Valid, 5190 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:35,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5178 Valid, 5190 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:35,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:10:35,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:10:35,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.7036629027816028) internal successors, (6186), 3633 states have internal predecessors, (6186), 0 states have call successors, (0), 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 07:10:35,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6186 transitions. [2022-01-11 07:10:35,239 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6186 transitions. Word has length 110 [2022-01-11 07:10:35,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:35,239 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6186 transitions. [2022-01-11 07:10:35,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:35,240 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6186 transitions. [2022-01-11 07:10:35,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:10:35,240 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:35,240 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:35,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 07:10:35,241 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:35,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:35,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1422219573, now seen corresponding path program 1 times [2022-01-11 07:10:35,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:35,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682072660] [2022-01-11 07:10:35,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:35,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:35,280 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 07:10:35,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:35,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682072660] [2022-01-11 07:10:35,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682072660] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:35,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:35,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:35,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124663640] [2022-01-11 07:10:35,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:35,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:35,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:35,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:35,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:35,284 INFO L87 Difference]: Start difference. First operand 3634 states and 6186 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:35,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:35,346 INFO L93 Difference]: Finished difference Result 5129 states and 8387 transitions. [2022-01-11 07:10:35,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:35,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:10:35,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:35,356 INFO L225 Difference]: With dead ends: 5129 [2022-01-11 07:10:35,356 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:10:35,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:35,360 INFO L933 BasicCegarLoop]: 5185 mSDtfsCounter, 5172 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5172 SdHoareTripleChecker+Valid, 5185 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:35,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5172 Valid, 5185 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:35,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:10:35,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:10:35,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.7014596529881576) internal successors, (6178), 3633 states have internal predecessors, (6178), 0 states have call successors, (0), 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 07:10:35,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6178 transitions. [2022-01-11 07:10:35,501 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6178 transitions. Word has length 110 [2022-01-11 07:10:35,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:35,504 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6178 transitions. [2022-01-11 07:10:35,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:35,509 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6178 transitions. [2022-01-11 07:10:35,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:10:35,510 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:35,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:35,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 07:10:35,511 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:35,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:35,512 INFO L85 PathProgramCache]: Analyzing trace with hash -474855701, now seen corresponding path program 1 times [2022-01-11 07:10:35,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:35,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729765869] [2022-01-11 07:10:35,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:35,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:35,550 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 07:10:35,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:35,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729765869] [2022-01-11 07:10:35,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729765869] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:35,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:35,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:35,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583854463] [2022-01-11 07:10:35,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:35,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:35,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:35,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:35,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:35,552 INFO L87 Difference]: Start difference. First operand 3634 states and 6178 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:35,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:35,624 INFO L93 Difference]: Finished difference Result 5128 states and 8370 transitions. [2022-01-11 07:10:35,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:35,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:10:35,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:35,634 INFO L225 Difference]: With dead ends: 5128 [2022-01-11 07:10:35,634 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:10:35,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:35,639 INFO L933 BasicCegarLoop]: 5180 mSDtfsCounter, 5166 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5166 SdHoareTripleChecker+Valid, 5180 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:35,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5166 Valid, 5180 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:35,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:10:35,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:10:35,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6992564031947122) internal successors, (6170), 3633 states have internal predecessors, (6170), 0 states have call successors, (0), 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 07:10:35,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6170 transitions. [2022-01-11 07:10:35,718 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6170 transitions. Word has length 110 [2022-01-11 07:10:35,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:35,719 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6170 transitions. [2022-01-11 07:10:35,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:35,720 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6170 transitions. [2022-01-11 07:10:35,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:10:35,720 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:35,721 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:35,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 07:10:35,721 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:35,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:35,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1414126901, now seen corresponding path program 1 times [2022-01-11 07:10:35,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:35,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208845812] [2022-01-11 07:10:35,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:35,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:35,770 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 07:10:35,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:35,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208845812] [2022-01-11 07:10:35,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208845812] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:35,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:35,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:35,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576006146] [2022-01-11 07:10:35,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:35,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:35,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:35,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:35,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:35,772 INFO L87 Difference]: Start difference. First operand 3634 states and 6170 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:35,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:35,852 INFO L93 Difference]: Finished difference Result 5127 states and 8353 transitions. [2022-01-11 07:10:35,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:35,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:10:35,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:35,874 INFO L225 Difference]: With dead ends: 5127 [2022-01-11 07:10:35,874 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:10:35,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:35,880 INFO L933 BasicCegarLoop]: 5175 mSDtfsCounter, 5160 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5160 SdHoareTripleChecker+Valid, 5175 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:35,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5160 Valid, 5175 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:35,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:10:35,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:10:35,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.697053153401267) internal successors, (6162), 3633 states have internal predecessors, (6162), 0 states have call successors, (0), 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 07:10:35,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6162 transitions. [2022-01-11 07:10:35,969 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6162 transitions. Word has length 110 [2022-01-11 07:10:35,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:35,970 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6162 transitions. [2022-01-11 07:10:35,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:35,970 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6162 transitions. [2022-01-11 07:10:35,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:10:35,971 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:35,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:35,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 07:10:35,971 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:35,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:35,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1742162667, now seen corresponding path program 1 times [2022-01-11 07:10:35,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:35,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732066057] [2022-01-11 07:10:35,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:35,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:36,018 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 07:10:36,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:36,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732066057] [2022-01-11 07:10:36,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732066057] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:36,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:36,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:36,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109071229] [2022-01-11 07:10:36,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:36,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:36,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:36,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:36,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:36,020 INFO L87 Difference]: Start difference. First operand 3634 states and 6162 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:36,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:36,093 INFO L93 Difference]: Finished difference Result 5126 states and 8336 transitions. [2022-01-11 07:10:36,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:36,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:10:36,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:36,100 INFO L225 Difference]: With dead ends: 5126 [2022-01-11 07:10:36,100 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:10:36,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:36,103 INFO L933 BasicCegarLoop]: 5170 mSDtfsCounter, 5154 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5154 SdHoareTripleChecker+Valid, 5170 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:36,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5154 Valid, 5170 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:36,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:10:36,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:10:36,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6948499036078215) internal successors, (6154), 3633 states have internal predecessors, (6154), 0 states have call successors, (0), 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 07:10:36,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6154 transitions. [2022-01-11 07:10:36,190 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6154 transitions. Word has length 110 [2022-01-11 07:10:36,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:36,190 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6154 transitions. [2022-01-11 07:10:36,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:36,191 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6154 transitions. [2022-01-11 07:10:36,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:10:36,192 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:36,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:36,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 07:10:36,192 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:36,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:36,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1289789131, now seen corresponding path program 1 times [2022-01-11 07:10:36,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:36,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292751792] [2022-01-11 07:10:36,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:36,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:36,224 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 07:10:36,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:36,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292751792] [2022-01-11 07:10:36,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292751792] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:36,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:36,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:36,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899041369] [2022-01-11 07:10:36,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:36,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:36,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:36,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:36,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:36,226 INFO L87 Difference]: Start difference. First operand 3634 states and 6154 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:36,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:36,322 INFO L93 Difference]: Finished difference Result 5125 states and 8319 transitions. [2022-01-11 07:10:36,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:36,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:10:36,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:36,327 INFO L225 Difference]: With dead ends: 5125 [2022-01-11 07:10:36,327 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:10:36,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:36,331 INFO L933 BasicCegarLoop]: 5145 mSDtfsCounter, 5056 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5056 SdHoareTripleChecker+Valid, 5223 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:36,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5056 Valid, 5223 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:36,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:10:36,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:10:36,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.687689341779124) internal successors, (6128), 3633 states have internal predecessors, (6128), 0 states have call successors, (0), 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 07:10:36,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6128 transitions. [2022-01-11 07:10:36,435 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6128 transitions. Word has length 110 [2022-01-11 07:10:36,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:36,435 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6128 transitions. [2022-01-11 07:10:36,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:36,438 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6128 transitions. [2022-01-11 07:10:36,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:10:36,439 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:36,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:36,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 07:10:36,439 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:36,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:36,440 INFO L85 PathProgramCache]: Analyzing trace with hash 848876650, now seen corresponding path program 1 times [2022-01-11 07:10:36,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:36,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401086548] [2022-01-11 07:10:36,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:36,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:36,471 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 07:10:36,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:36,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401086548] [2022-01-11 07:10:36,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401086548] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:36,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:36,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:36,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179573158] [2022-01-11 07:10:36,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:36,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:36,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:36,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:36,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:36,473 INFO L87 Difference]: Start difference. First operand 3634 states and 6128 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:36,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:36,550 INFO L93 Difference]: Finished difference Result 5124 states and 8266 transitions. [2022-01-11 07:10:36,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:36,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:10:36,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:36,555 INFO L225 Difference]: With dead ends: 5124 [2022-01-11 07:10:36,556 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:10:36,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:36,558 INFO L933 BasicCegarLoop]: 5130 mSDtfsCounter, 5041 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5041 SdHoareTripleChecker+Valid, 5207 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:36,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5041 Valid, 5207 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:36,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:10:36,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:10:36,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.680528779950427) internal successors, (6102), 3633 states have internal predecessors, (6102), 0 states have call successors, (0), 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 07:10:36,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6102 transitions. [2022-01-11 07:10:36,614 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6102 transitions. Word has length 110 [2022-01-11 07:10:36,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:36,614 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6102 transitions. [2022-01-11 07:10:36,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:36,614 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6102 transitions. [2022-01-11 07:10:36,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:10:36,615 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:36,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:36,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 07:10:36,615 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:36,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:36,616 INFO L85 PathProgramCache]: Analyzing trace with hash -213454583, now seen corresponding path program 1 times [2022-01-11 07:10:36,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:36,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580407551] [2022-01-11 07:10:36,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:36,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:36,639 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 07:10:36,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:36,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580407551] [2022-01-11 07:10:36,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580407551] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:36,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:36,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:36,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961193834] [2022-01-11 07:10:36,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:36,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:36,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:36,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:36,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:36,641 INFO L87 Difference]: Start difference. First operand 3634 states and 6102 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:36,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:36,716 INFO L93 Difference]: Finished difference Result 5123 states and 8213 transitions. [2022-01-11 07:10:36,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:36,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:10:36,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:36,722 INFO L225 Difference]: With dead ends: 5123 [2022-01-11 07:10:36,722 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:10:36,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:36,725 INFO L933 BasicCegarLoop]: 5115 mSDtfsCounter, 5026 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5026 SdHoareTripleChecker+Valid, 5191 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:36,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5026 Valid, 5191 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:36,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:10:36,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:10:36,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6733682181217295) internal successors, (6076), 3633 states have internal predecessors, (6076), 0 states have call successors, (0), 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 07:10:36,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6076 transitions. [2022-01-11 07:10:36,790 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6076 transitions. Word has length 110 [2022-01-11 07:10:36,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:36,790 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6076 transitions. [2022-01-11 07:10:36,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:36,790 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6076 transitions. [2022-01-11 07:10:36,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:10:36,791 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:36,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:36,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 07:10:36,792 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:36,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:36,792 INFO L85 PathProgramCache]: Analyzing trace with hash -173951704, now seen corresponding path program 1 times [2022-01-11 07:10:36,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:36,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412791085] [2022-01-11 07:10:36,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:36,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:36,819 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 07:10:36,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:36,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412791085] [2022-01-11 07:10:36,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412791085] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:36,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:36,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:36,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845026729] [2022-01-11 07:10:36,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:36,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:36,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:36,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:36,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:36,820 INFO L87 Difference]: Start difference. First operand 3634 states and 6076 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:36,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:36,899 INFO L93 Difference]: Finished difference Result 5122 states and 8160 transitions. [2022-01-11 07:10:36,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:36,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:10:36,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:36,905 INFO L225 Difference]: With dead ends: 5122 [2022-01-11 07:10:36,905 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:10:36,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:36,907 INFO L933 BasicCegarLoop]: 5100 mSDtfsCounter, 5011 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5011 SdHoareTripleChecker+Valid, 5175 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:36,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5011 Valid, 5175 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:36,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:10:36,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:10:36,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6662076562930321) internal successors, (6050), 3633 states have internal predecessors, (6050), 0 states have call successors, (0), 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 07:10:36,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6050 transitions. [2022-01-11 07:10:36,967 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6050 transitions. Word has length 110 [2022-01-11 07:10:36,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:36,967 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6050 transitions. [2022-01-11 07:10:36,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:36,967 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6050 transitions. [2022-01-11 07:10:36,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:10:36,968 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:36,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:36,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 07:10:36,968 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:36,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:36,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1538076743, now seen corresponding path program 1 times [2022-01-11 07:10:36,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:36,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246011300] [2022-01-11 07:10:36,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:36,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:37,003 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 07:10:37,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:37,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246011300] [2022-01-11 07:10:37,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246011300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:37,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:37,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:37,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903645312] [2022-01-11 07:10:37,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:37,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:37,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:37,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:37,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:37,004 INFO L87 Difference]: Start difference. First operand 3634 states and 6050 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:37,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:37,104 INFO L93 Difference]: Finished difference Result 5121 states and 8107 transitions. [2022-01-11 07:10:37,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:37,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:10:37,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:37,109 INFO L225 Difference]: With dead ends: 5121 [2022-01-11 07:10:37,109 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:10:37,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:37,113 INFO L933 BasicCegarLoop]: 5085 mSDtfsCounter, 4996 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4996 SdHoareTripleChecker+Valid, 5159 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:37,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4996 Valid, 5159 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:37,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:10:37,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:10:37,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.659047094464335) internal successors, (6024), 3633 states have internal predecessors, (6024), 0 states have call successors, (0), 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 07:10:37,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6024 transitions. [2022-01-11 07:10:37,203 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6024 transitions. Word has length 110 [2022-01-11 07:10:37,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:37,203 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6024 transitions. [2022-01-11 07:10:37,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:37,203 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6024 transitions. [2022-01-11 07:10:37,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:10:37,204 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:37,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:37,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 07:10:37,205 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:37,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:37,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1901523047, now seen corresponding path program 1 times [2022-01-11 07:10:37,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:37,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478250232] [2022-01-11 07:10:37,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:37,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:37,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:37,231 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 07:10:37,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:37,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478250232] [2022-01-11 07:10:37,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478250232] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:37,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:37,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:37,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102244303] [2022-01-11 07:10:37,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:37,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:37,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:37,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:37,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:37,232 INFO L87 Difference]: Start difference. First operand 3634 states and 6024 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:37,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:37,346 INFO L93 Difference]: Finished difference Result 5120 states and 8054 transitions. [2022-01-11 07:10:37,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:37,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:10:37,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:37,352 INFO L225 Difference]: With dead ends: 5120 [2022-01-11 07:10:37,352 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:10:37,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:37,355 INFO L933 BasicCegarLoop]: 5070 mSDtfsCounter, 4981 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4981 SdHoareTripleChecker+Valid, 5143 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:37,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4981 Valid, 5143 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:37,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:10:37,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:10:37,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6518865326356376) internal successors, (5998), 3633 states have internal predecessors, (5998), 0 states have call successors, (0), 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 07:10:37,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 5998 transitions. [2022-01-11 07:10:37,452 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 5998 transitions. Word has length 110 [2022-01-11 07:10:37,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:37,452 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 5998 transitions. [2022-01-11 07:10:37,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:37,453 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 5998 transitions. [2022-01-11 07:10:37,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:10:37,454 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:37,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:37,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 07:10:37,454 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:37,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:37,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1350797830, now seen corresponding path program 1 times [2022-01-11 07:10:37,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:37,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123314249] [2022-01-11 07:10:37,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:37,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:37,480 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 07:10:37,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:37,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123314249] [2022-01-11 07:10:37,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123314249] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:37,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:37,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:37,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979835585] [2022-01-11 07:10:37,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:37,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:37,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:37,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:37,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:37,481 INFO L87 Difference]: Start difference. First operand 3634 states and 5998 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:37,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:37,591 INFO L93 Difference]: Finished difference Result 5119 states and 8001 transitions. [2022-01-11 07:10:37,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:37,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:10:37,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:37,596 INFO L225 Difference]: With dead ends: 5119 [2022-01-11 07:10:37,596 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:10:37,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:37,599 INFO L933 BasicCegarLoop]: 5055 mSDtfsCounter, 4966 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4966 SdHoareTripleChecker+Valid, 5127 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:37,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4966 Valid, 5127 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:37,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:10:37,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:10:37,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6447259708069402) internal successors, (5972), 3633 states have internal predecessors, (5972), 0 states have call successors, (0), 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 07:10:37,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 5972 transitions. [2022-01-11 07:10:37,689 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 5972 transitions. Word has length 110 [2022-01-11 07:10:37,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:37,689 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 5972 transitions. [2022-01-11 07:10:37,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:37,689 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 5972 transitions. [2022-01-11 07:10:37,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:10:37,690 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:37,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:37,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 07:10:37,691 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:37,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:37,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1008030939, now seen corresponding path program 1 times [2022-01-11 07:10:37,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:37,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011831661] [2022-01-11 07:10:37,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:37,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:37,717 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 07:10:37,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:37,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011831661] [2022-01-11 07:10:37,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011831661] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:37,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:37,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:37,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929199830] [2022-01-11 07:10:37,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:37,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:37,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:37,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:37,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:37,718 INFO L87 Difference]: Start difference. First operand 3634 states and 5972 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:37,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:37,824 INFO L93 Difference]: Finished difference Result 5118 states and 7948 transitions. [2022-01-11 07:10:37,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:37,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:10:37,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:37,829 INFO L225 Difference]: With dead ends: 5118 [2022-01-11 07:10:37,830 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:10:37,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:37,832 INFO L933 BasicCegarLoop]: 5040 mSDtfsCounter, 4951 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4951 SdHoareTripleChecker+Valid, 5111 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:37,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4951 Valid, 5111 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:37,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:10:37,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:10:37,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.637565408978243) internal successors, (5946), 3633 states have internal predecessors, (5946), 0 states have call successors, (0), 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 07:10:37,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 5946 transitions. [2022-01-11 07:10:37,920 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 5946 transitions. Word has length 110 [2022-01-11 07:10:37,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:37,920 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 5946 transitions. [2022-01-11 07:10:37,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:37,921 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 5946 transitions. [2022-01-11 07:10:37,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:10:37,922 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:37,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:37,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 07:10:37,922 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:37,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:37,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1601551003, now seen corresponding path program 1 times [2022-01-11 07:10:37,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:37,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944763817] [2022-01-11 07:10:37,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:37,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:37,971 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 07:10:37,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:37,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944763817] [2022-01-11 07:10:37,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944763817] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:37,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:37,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:10:37,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364957232] [2022-01-11 07:10:37,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:37,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:10:37,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:37,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:10:37,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:10:37,973 INFO L87 Difference]: Start difference. First operand 3634 states and 5946 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:38,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:38,247 INFO L93 Difference]: Finished difference Result 5824 states and 8873 transitions. [2022-01-11 07:10:38,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:10:38,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:10:38,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:38,254 INFO L225 Difference]: With dead ends: 5824 [2022-01-11 07:10:38,254 INFO L226 Difference]: Without dead ends: 4354 [2022-01-11 07:10:38,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:10:38,256 INFO L933 BasicCegarLoop]: 5129 mSDtfsCounter, 2968 mSDsluCounter, 13404 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2968 SdHoareTripleChecker+Valid, 18533 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:38,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2968 Valid, 18533 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:10:38,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4354 states. [2022-01-11 07:10:38,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4354 to 3640. [2022-01-11 07:10:38,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3640 states, 3637 states have (on average 1.6315644762166621) internal successors, (5934), 3639 states have internal predecessors, (5934), 0 states have call successors, (0), 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 07:10:38,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 5934 transitions. [2022-01-11 07:10:38,373 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 5934 transitions. Word has length 110 [2022-01-11 07:10:38,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:38,373 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 5934 transitions. [2022-01-11 07:10:38,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:38,374 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 5934 transitions. [2022-01-11 07:10:38,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:10:38,374 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:38,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:38,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 07:10:38,375 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:38,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:38,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1847864090, now seen corresponding path program 1 times [2022-01-11 07:10:38,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:38,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643737523] [2022-01-11 07:10:38,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:38,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:38,432 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 07:10:38,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:38,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643737523] [2022-01-11 07:10:38,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643737523] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:38,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:38,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:10:38,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63945602] [2022-01-11 07:10:38,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:38,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:10:38,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:38,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:10:38,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:10:38,434 INFO L87 Difference]: Start difference. First operand 3640 states and 5934 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:38,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:38,678 INFO L93 Difference]: Finished difference Result 6293 states and 9431 transitions. [2022-01-11 07:10:38,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:10:38,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:10:38,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:38,685 INFO L225 Difference]: With dead ends: 6293 [2022-01-11 07:10:38,685 INFO L226 Difference]: Without dead ends: 4852 [2022-01-11 07:10:38,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:10:38,687 INFO L933 BasicCegarLoop]: 5027 mSDtfsCounter, 2360 mSDsluCounter, 14556 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 19583 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:38,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2360 Valid, 19583 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:10:38,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4852 states. [2022-01-11 07:10:38,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4852 to 3646. [2022-01-11 07:10:38,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 3643 states have (on average 1.6255833104584134) internal successors, (5922), 3645 states have internal predecessors, (5922), 0 states have call successors, (0), 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 07:10:38,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 5922 transitions. [2022-01-11 07:10:38,785 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 5922 transitions. Word has length 110 [2022-01-11 07:10:38,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:38,785 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 5922 transitions. [2022-01-11 07:10:38,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:38,785 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 5922 transitions. [2022-01-11 07:10:38,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:10:38,786 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:38,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:38,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 07:10:38,786 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:38,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:38,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1524419623, now seen corresponding path program 1 times [2022-01-11 07:10:38,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:38,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109937473] [2022-01-11 07:10:38,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:38,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:38,833 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 07:10:38,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:38,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109937473] [2022-01-11 07:10:38,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109937473] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:38,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:38,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:10:38,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532914599] [2022-01-11 07:10:38,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:38,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:10:38,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:38,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:10:38,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:10:38,835 INFO L87 Difference]: Start difference. First operand 3646 states and 5922 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:39,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:39,108 INFO L93 Difference]: Finished difference Result 6402 states and 9517 transitions. [2022-01-11 07:10:39,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:10:39,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:10:39,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:39,116 INFO L225 Difference]: With dead ends: 6402 [2022-01-11 07:10:39,116 INFO L226 Difference]: Without dead ends: 4962 [2022-01-11 07:10:39,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:10:39,118 INFO L933 BasicCegarLoop]: 4999 mSDtfsCounter, 2224 mSDsluCounter, 14765 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2224 SdHoareTripleChecker+Valid, 19764 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:39,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2224 Valid, 19764 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:10:39,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4962 states. [2022-01-11 07:10:39,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4962 to 3652. [2022-01-11 07:10:39,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 3649 states have (on average 1.61962181419567) internal successors, (5910), 3651 states have internal predecessors, (5910), 0 states have call successors, (0), 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 07:10:39,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5910 transitions. [2022-01-11 07:10:39,255 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5910 transitions. Word has length 110 [2022-01-11 07:10:39,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:39,255 INFO L470 AbstractCegarLoop]: Abstraction has 3652 states and 5910 transitions. [2022-01-11 07:10:39,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:39,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5910 transitions. [2022-01-11 07:10:39,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:10:39,257 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:39,257 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:39,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 07:10:39,257 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:39,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:39,257 INFO L85 PathProgramCache]: Analyzing trace with hash -659257304, now seen corresponding path program 1 times [2022-01-11 07:10:39,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:39,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719700302] [2022-01-11 07:10:39,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:39,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:39,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:39,314 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 07:10:39,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:39,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719700302] [2022-01-11 07:10:39,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719700302] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:39,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:39,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:39,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792637403] [2022-01-11 07:10:39,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:39,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:39,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:39,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:39,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:39,316 INFO L87 Difference]: Start difference. First operand 3652 states and 5910 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:39,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:39,549 INFO L93 Difference]: Finished difference Result 6540 states and 9596 transitions. [2022-01-11 07:10:39,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:39,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:10:39,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:39,558 INFO L225 Difference]: With dead ends: 6540 [2022-01-11 07:10:39,558 INFO L226 Difference]: Without dead ends: 5040 [2022-01-11 07:10:39,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:39,562 INFO L933 BasicCegarLoop]: 5011 mSDtfsCounter, 4877 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4877 SdHoareTripleChecker+Valid, 5929 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:39,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4877 Valid, 5929 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:39,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5040 states. [2022-01-11 07:10:39,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5040 to 4924. [2022-01-11 07:10:39,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4924 states, 4921 states have (on average 1.5277382645803699) internal successors, (7518), 4923 states have internal predecessors, (7518), 0 states have call successors, (0), 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 07:10:39,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4924 states to 4924 states and 7518 transitions. [2022-01-11 07:10:39,736 INFO L78 Accepts]: Start accepts. Automaton has 4924 states and 7518 transitions. Word has length 110 [2022-01-11 07:10:39,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:39,736 INFO L470 AbstractCegarLoop]: Abstraction has 4924 states and 7518 transitions. [2022-01-11 07:10:39,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 07:10:39,737 INFO L276 IsEmpty]: Start isEmpty. Operand 4924 states and 7518 transitions. [2022-01-11 07:10:39,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-11 07:10:39,739 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:39,739 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:10:39,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 07:10:39,739 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:39,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:39,740 INFO L85 PathProgramCache]: Analyzing trace with hash 2091855512, now seen corresponding path program 1 times [2022-01-11 07:10:39,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:39,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380181394] [2022-01-11 07:10:39,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:39,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:39,778 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:10:39,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:39,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380181394] [2022-01-11 07:10:39,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380181394] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:39,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:39,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:10:39,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223122260] [2022-01-11 07:10:39,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:39,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:39,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:39,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:39,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:39,780 INFO L87 Difference]: Start difference. First operand 4924 states and 7518 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 07:10:40,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:40,090 INFO L93 Difference]: Finished difference Result 10310 states and 14374 transitions. [2022-01-11 07:10:40,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:40,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2022-01-11 07:10:40,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:40,102 INFO L225 Difference]: With dead ends: 10310 [2022-01-11 07:10:40,102 INFO L226 Difference]: Without dead ends: 7544 [2022-01-11 07:10:40,106 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 07:10:40,106 INFO L933 BasicCegarLoop]: 5008 mSDtfsCounter, 4906 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4906 SdHoareTripleChecker+Valid, 5926 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:40,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4906 Valid, 5926 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:40,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7544 states. [2022-01-11 07:10:40,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7544 to 7340. [2022-01-11 07:10:40,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7340 states, 7337 states have (on average 1.441733678615238) internal successors, (10578), 7339 states have internal predecessors, (10578), 0 states have call successors, (0), 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 07:10:40,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7340 states to 7340 states and 10578 transitions. [2022-01-11 07:10:40,395 INFO L78 Accepts]: Start accepts. Automaton has 7340 states and 10578 transitions. Word has length 178 [2022-01-11 07:10:40,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:40,396 INFO L470 AbstractCegarLoop]: Abstraction has 7340 states and 10578 transitions. [2022-01-11 07:10:40,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 07:10:40,396 INFO L276 IsEmpty]: Start isEmpty. Operand 7340 states and 10578 transitions. [2022-01-11 07:10:40,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-11 07:10:40,399 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:40,399 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:10:40,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 07:10:40,400 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:40,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:40,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1452187944, now seen corresponding path program 1 times [2022-01-11 07:10:40,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:40,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019875374] [2022-01-11 07:10:40,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:40,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:40,444 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:10:40,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:40,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019875374] [2022-01-11 07:10:40,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019875374] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:40,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:40,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:10:40,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239064526] [2022-01-11 07:10:40,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:40,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:40,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:40,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:40,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:40,446 INFO L87 Difference]: Start difference. First operand 7340 states and 10578 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 07:10:41,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:41,054 INFO L93 Difference]: Finished difference Result 17261 states and 23062 transitions. [2022-01-11 07:10:41,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:41,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2022-01-11 07:10:41,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:41,080 INFO L225 Difference]: With dead ends: 17261 [2022-01-11 07:10:41,080 INFO L226 Difference]: Without dead ends: 12143 [2022-01-11 07:10:41,093 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 07:10:41,094 INFO L933 BasicCegarLoop]: 5548 mSDtfsCounter, 4745 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4745 SdHoareTripleChecker+Valid, 6591 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:41,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4745 Valid, 6591 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:41,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12143 states. [2022-01-11 07:10:41,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12143 to 12139. [2022-01-11 07:10:41,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12139 states, 12136 states have (on average 1.3618984838497035) internal successors, (16528), 12138 states have internal predecessors, (16528), 0 states have call successors, (0), 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 07:10:41,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12139 states to 12139 states and 16528 transitions. [2022-01-11 07:10:41,808 INFO L78 Accepts]: Start accepts. Automaton has 12139 states and 16528 transitions. Word has length 178 [2022-01-11 07:10:41,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:41,809 INFO L470 AbstractCegarLoop]: Abstraction has 12139 states and 16528 transitions. [2022-01-11 07:10:41,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 07:10:41,809 INFO L276 IsEmpty]: Start isEmpty. Operand 12139 states and 16528 transitions. [2022-01-11 07:10:41,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-11 07:10:41,814 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:41,814 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:10:41,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 07:10:41,814 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:41,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:41,815 INFO L85 PathProgramCache]: Analyzing trace with hash -2136418249, now seen corresponding path program 1 times [2022-01-11 07:10:41,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:41,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324416078] [2022-01-11 07:10:41,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:41,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:41,841 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:10:41,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:41,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324416078] [2022-01-11 07:10:41,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324416078] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:41,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:41,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:10:41,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485190870] [2022-01-11 07:10:41,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:41,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:41,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:41,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:41,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:41,843 INFO L87 Difference]: Start difference. First operand 12139 states and 16528 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 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 07:10:42,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:42,485 INFO L93 Difference]: Finished difference Result 21961 states and 28866 transitions. [2022-01-11 07:10:42,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:42,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 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 178 [2022-01-11 07:10:42,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:42,508 INFO L225 Difference]: With dead ends: 21961 [2022-01-11 07:10:42,508 INFO L226 Difference]: Without dead ends: 12044 [2022-01-11 07:10:42,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:42,528 INFO L933 BasicCegarLoop]: 5019 mSDtfsCounter, 1057 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 8977 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:42,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1057 Valid, 8977 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:42,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12044 states. [2022-01-11 07:10:43,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12044 to 12044. [2022-01-11 07:10:43,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12044 states, 12041 states have (on average 1.363258865542729) internal successors, (16415), 12043 states have internal predecessors, (16415), 0 states have call successors, (0), 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 07:10:43,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12044 states to 12044 states and 16415 transitions. [2022-01-11 07:10:43,355 INFO L78 Accepts]: Start accepts. Automaton has 12044 states and 16415 transitions. Word has length 178 [2022-01-11 07:10:43,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:43,355 INFO L470 AbstractCegarLoop]: Abstraction has 12044 states and 16415 transitions. [2022-01-11 07:10:43,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 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 07:10:43,355 INFO L276 IsEmpty]: Start isEmpty. Operand 12044 states and 16415 transitions. [2022-01-11 07:10:43,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-11 07:10:43,362 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:43,362 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:10:43,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 07:10:43,362 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:43,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:43,363 INFO L85 PathProgramCache]: Analyzing trace with hash 409833945, now seen corresponding path program 1 times [2022-01-11 07:10:43,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:43,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450749003] [2022-01-11 07:10:43,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:43,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:43,422 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:10:43,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:43,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450749003] [2022-01-11 07:10:43,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450749003] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:43,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:43,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:10:43,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298350353] [2022-01-11 07:10:43,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:43,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:43,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:43,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:43,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:43,424 INFO L87 Difference]: Start difference. First operand 12044 states and 16415 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 07:10:44,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:44,679 INFO L93 Difference]: Finished difference Result 31278 states and 40465 transitions. [2022-01-11 07:10:44,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:44,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2022-01-11 07:10:44,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:44,703 INFO L225 Difference]: With dead ends: 31278 [2022-01-11 07:10:44,703 INFO L226 Difference]: Without dead ends: 21456 [2022-01-11 07:10:44,714 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 07:10:44,714 INFO L933 BasicCegarLoop]: 5308 mSDtfsCounter, 4904 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 6339 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:44,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4904 Valid, 6339 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:10:44,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21456 states. [2022-01-11 07:10:45,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21456 to 20828. [2022-01-11 07:10:45,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20828 states, 20825 states have (on average 1.3117406962785114) internal successors, (27317), 20827 states have internal predecessors, (27317), 0 states have call successors, (0), 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 07:10:45,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20828 states to 20828 states and 27317 transitions. [2022-01-11 07:10:45,793 INFO L78 Accepts]: Start accepts. Automaton has 20828 states and 27317 transitions. Word has length 179 [2022-01-11 07:10:45,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:45,795 INFO L470 AbstractCegarLoop]: Abstraction has 20828 states and 27317 transitions. [2022-01-11 07:10:45,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 07:10:45,796 INFO L276 IsEmpty]: Start isEmpty. Operand 20828 states and 27317 transitions. [2022-01-11 07:10:45,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-11 07:10:45,809 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:45,809 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:10:45,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 07:10:45,809 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:45,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:45,810 INFO L85 PathProgramCache]: Analyzing trace with hash 163613143, now seen corresponding path program 1 times [2022-01-11 07:10:45,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:45,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392149355] [2022-01-11 07:10:45,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:45,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:45,850 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:10:45,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:45,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392149355] [2022-01-11 07:10:45,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392149355] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:45,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:45,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:10:45,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573704695] [2022-01-11 07:10:45,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:45,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:45,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:45,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:45,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:45,852 INFO L87 Difference]: Start difference. First operand 20828 states and 27317 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 07:10:47,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:47,384 INFO L93 Difference]: Finished difference Result 39393 states and 50508 transitions. [2022-01-11 07:10:47,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:47,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 179 [2022-01-11 07:10:47,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:47,422 INFO L225 Difference]: With dead ends: 39393 [2022-01-11 07:10:47,422 INFO L226 Difference]: Without dead ends: 20734 [2022-01-11 07:10:47,449 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 07:10:47,449 INFO L933 BasicCegarLoop]: 5018 mSDtfsCounter, 1055 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 8976 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:47,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1055 Valid, 8976 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:47,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20734 states. [2022-01-11 07:10:49,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20734 to 20734. [2022-01-11 07:10:49,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20734 states, 20731 states have (on average 1.3123341855192707) internal successors, (27206), 20733 states have internal predecessors, (27206), 0 states have call successors, (0), 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 07:10:49,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20734 states to 20734 states and 27206 transitions. [2022-01-11 07:10:49,137 INFO L78 Accepts]: Start accepts. Automaton has 20734 states and 27206 transitions. Word has length 179 [2022-01-11 07:10:49,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:49,137 INFO L470 AbstractCegarLoop]: Abstraction has 20734 states and 27206 transitions. [2022-01-11 07:10:49,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 07:10:49,137 INFO L276 IsEmpty]: Start isEmpty. Operand 20734 states and 27206 transitions. [2022-01-11 07:10:49,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-01-11 07:10:49,144 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:49,144 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:10:49,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 07:10:49,145 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:49,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:49,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1274280743, now seen corresponding path program 1 times [2022-01-11 07:10:49,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:49,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334316138] [2022-01-11 07:10:49,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:49,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:49,194 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:10:49,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:49,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334316138] [2022-01-11 07:10:49,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334316138] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:49,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:49,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:10:49,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761961059] [2022-01-11 07:10:49,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:49,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:49,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:49,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:49,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:49,196 INFO L87 Difference]: Start difference. First operand 20734 states and 27206 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 07:10:51,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:51,521 INFO L93 Difference]: Finished difference Result 56763 states and 72102 transitions. [2022-01-11 07:10:51,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:51,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 180 [2022-01-11 07:10:51,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:51,578 INFO L225 Difference]: With dead ends: 56763 [2022-01-11 07:10:51,578 INFO L226 Difference]: Without dead ends: 38251 [2022-01-11 07:10:51,593 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 07:10:51,596 INFO L933 BasicCegarLoop]: 5272 mSDtfsCounter, 4904 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 6301 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:51,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4904 Valid, 6301 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:51,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38251 states. [2022-01-11 07:10:54,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38251 to 37223. [2022-01-11 07:10:54,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37223 states, 37220 states have (on average 1.2806555615260613) internal successors, (47666), 37222 states have internal predecessors, (47666), 0 states have call successors, (0), 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 07:10:54,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37223 states to 37223 states and 47666 transitions. [2022-01-11 07:10:54,301 INFO L78 Accepts]: Start accepts. Automaton has 37223 states and 47666 transitions. Word has length 180 [2022-01-11 07:10:54,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:54,302 INFO L470 AbstractCegarLoop]: Abstraction has 37223 states and 47666 transitions. [2022-01-11 07:10:54,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 07:10:54,302 INFO L276 IsEmpty]: Start isEmpty. Operand 37223 states and 47666 transitions. [2022-01-11 07:10:54,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-01-11 07:10:54,318 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:54,318 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:10:54,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 07:10:54,318 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:54,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:54,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1782445368, now seen corresponding path program 1 times [2022-01-11 07:10:54,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:54,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714506014] [2022-01-11 07:10:54,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:54,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:54,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:54,377 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:10:54,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:54,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714506014] [2022-01-11 07:10:54,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714506014] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:54,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:54,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:10:54,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796969738] [2022-01-11 07:10:54,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:54,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:54,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:54,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:54,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:54,379 INFO L87 Difference]: Start difference. First operand 37223 states and 47666 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 07:10:56,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:56,492 INFO L93 Difference]: Finished difference Result 72177 states and 91200 transitions. [2022-01-11 07:10:56,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:56,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 180 [2022-01-11 07:10:56,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:56,544 INFO L225 Difference]: With dead ends: 72177 [2022-01-11 07:10:56,544 INFO L226 Difference]: Without dead ends: 37130 [2022-01-11 07:10:56,568 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 07:10:56,569 INFO L933 BasicCegarLoop]: 5017 mSDtfsCounter, 1053 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 8975 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:56,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1053 Valid, 8975 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:56,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37130 states. [2022-01-11 07:10:58,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37130 to 37130. [2022-01-11 07:10:58,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37130 states, 37127 states have (on average 1.2809276267945162) internal successors, (47557), 37129 states have internal predecessors, (47557), 0 states have call successors, (0), 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 07:10:58,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37130 states to 37130 states and 47557 transitions. [2022-01-11 07:10:58,733 INFO L78 Accepts]: Start accepts. Automaton has 37130 states and 47557 transitions. Word has length 180 [2022-01-11 07:10:58,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:58,733 INFO L470 AbstractCegarLoop]: Abstraction has 37130 states and 47557 transitions. [2022-01-11 07:10:58,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 07:10:58,733 INFO L276 IsEmpty]: Start isEmpty. Operand 37130 states and 47557 transitions. [2022-01-11 07:10:58,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-11 07:10:58,744 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:58,745 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:10:58,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 07:10:58,745 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:58,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:58,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1757173645, now seen corresponding path program 1 times [2022-01-11 07:10:58,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:58,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311850970] [2022-01-11 07:10:58,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:58,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:58,855 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:10:58,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:58,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311850970] [2022-01-11 07:10:58,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311850970] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:58,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:58,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:10:58,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722128812] [2022-01-11 07:10:58,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:58,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:58,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:58,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:58,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:58,857 INFO L87 Difference]: Start difference. First operand 37130 states and 47557 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 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 07:11:03,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:11:03,387 INFO L93 Difference]: Finished difference Result 104534 states and 131347 transitions. [2022-01-11 07:11:03,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:11:03,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2022-01-11 07:11:03,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:11:03,491 INFO L225 Difference]: With dead ends: 104534 [2022-01-11 07:11:03,491 INFO L226 Difference]: Without dead ends: 69626 [2022-01-11 07:11:03,531 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 07:11:03,531 INFO L933 BasicCegarLoop]: 5291 mSDtfsCounter, 4904 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 6318 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:11:03,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4904 Valid, 6318 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:11:03,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69626 states. [2022-01-11 07:11:07,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69626 to 68022. [2022-01-11 07:11:08,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68022 states, 68019 states have (on average 1.262220850056602) internal successors, (85855), 68021 states have internal predecessors, (85855), 0 states have call successors, (0), 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 07:11:08,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68022 states to 68022 states and 85855 transitions. [2022-01-11 07:11:08,130 INFO L78 Accepts]: Start accepts. Automaton has 68022 states and 85855 transitions. Word has length 181 [2022-01-11 07:11:08,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:11:08,130 INFO L470 AbstractCegarLoop]: Abstraction has 68022 states and 85855 transitions. [2022-01-11 07:11:08,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 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 07:11:08,130 INFO L276 IsEmpty]: Start isEmpty. Operand 68022 states and 85855 transitions. [2022-01-11 07:11:08,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-11 07:11:08,153 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:11:08,154 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:11:08,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 07:11:08,154 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:11:08,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:11:08,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1170528618, now seen corresponding path program 1 times [2022-01-11 07:11:08,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:11:08,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246006747] [2022-01-11 07:11:08,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:11:08,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:11:08,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:11:08,181 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:11:08,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:11:08,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246006747] [2022-01-11 07:11:08,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246006747] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:11:08,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:11:08,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:11:08,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921913498] [2022-01-11 07:11:08,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:11:08,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:11:08,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:11:08,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:11:08,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:11:08,182 INFO L87 Difference]: Start difference. First operand 68022 states and 85855 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 07:11:12,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:11:12,727 INFO L93 Difference]: Finished difference Result 133769 states and 167572 transitions. [2022-01-11 07:11:12,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:11:12,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 181 [2022-01-11 07:11:12,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:11:12,835 INFO L225 Difference]: With dead ends: 133769 [2022-01-11 07:11:12,835 INFO L226 Difference]: Without dead ends: 67930 [2022-01-11 07:11:12,899 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 07:11:12,900 INFO L933 BasicCegarLoop]: 5016 mSDtfsCounter, 1051 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 8974 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:11:12,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1051 Valid, 8974 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:11:12,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67930 states. [2022-01-11 07:11:17,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67930 to 67930. [2022-01-11 07:11:17,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67930 states, 67927 states have (on average 1.2623551754088949) internal successors, (85748), 67929 states have internal predecessors, (85748), 0 states have call successors, (0), 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 07:11:17,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67930 states to 67930 states and 85748 transitions. [2022-01-11 07:11:17,979 INFO L78 Accepts]: Start accepts. Automaton has 67930 states and 85748 transitions. Word has length 181 [2022-01-11 07:11:17,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:11:17,980 INFO L470 AbstractCegarLoop]: Abstraction has 67930 states and 85748 transitions. [2022-01-11 07:11:17,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 07:11:17,980 INFO L276 IsEmpty]: Start isEmpty. Operand 67930 states and 85748 transitions. [2022-01-11 07:11:18,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-11 07:11:18,002 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:11:18,009 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:11:18,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 07:11:18,010 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:11:18,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:11:18,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1556371761, now seen corresponding path program 1 times [2022-01-11 07:11:18,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:11:18,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795614803] [2022-01-11 07:11:18,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:11:18,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:11:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:11:18,065 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:11:18,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:11:18,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795614803] [2022-01-11 07:11:18,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795614803] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:11:18,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:11:18,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:11:18,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286827033] [2022-01-11 07:11:18,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:11:18,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:11:18,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:11:18,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:11:18,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:11:18,066 INFO L87 Difference]: Start difference. First operand 67930 states and 85748 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)