/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_label45+token_ring.06.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 07:08:11,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 07:08:11,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 07:08:11,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 07:08:11,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 07:08:11,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 07:08:11,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 07:08:11,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 07:08:11,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 07:08:11,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 07:08:11,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 07:08:11,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 07:08:11,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 07:08:11,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 07:08:11,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 07:08:11,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 07:08:11,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 07:08:11,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 07:08:11,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 07:08:11,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 07:08:11,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 07:08:11,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 07:08:11,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 07:08:11,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 07:08:11,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 07:08:11,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 07:08:11,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 07:08:11,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 07:08:11,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 07:08:11,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 07:08:11,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 07:08:11,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 07:08:11,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 07:08:11,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 07:08:11,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 07:08:11,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 07:08:11,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 07:08:11,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 07:08:11,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 07:08:11,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 07:08:11,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 07:08:11,140 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 07:08:11,163 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 07:08:11,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 07:08:11,164 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 07:08:11,164 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 07:08:11,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 07:08:11,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 07:08:11,165 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 07:08:11,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 07:08:11,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 07:08:11,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 07:08:11,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 07:08:11,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 07:08:11,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 07:08:11,166 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 07:08:11,166 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 07:08:11,166 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 07:08:11,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 07:08:11,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 07:08:11,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 07:08:11,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 07:08:11,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 07:08:11,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:08:11,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 07:08:11,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 07:08:11,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 07:08:11,168 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 07:08:11,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 07:08:11,168 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 07:08:11,168 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 07:08:11,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 07:08:11,168 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 07:08:11,168 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 07:08:11,169 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 07:08:11,169 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 07:08:11,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 07:08:11,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 07:08:11,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 07:08:11,403 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 07:08:11,406 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 07:08:11,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.06.cil-1.c [2022-01-11 07:08:11,466 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6089b10f5/061ad805005f4497a2994f66839add4f/FLAG4854f48b9 [2022-01-11 07:08:12,271 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 07:08:12,272 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.06.cil-1.c [2022-01-11 07:08:12,326 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6089b10f5/061ad805005f4497a2994f66839add4f/FLAG4854f48b9 [2022-01-11 07:08:12,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6089b10f5/061ad805005f4497a2994f66839add4f [2022-01-11 07:08:12,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 07:08:12,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 07:08:12,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 07:08:12,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 07:08:12,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 07:08:12,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:08:12" (1/1) ... [2022-01-11 07:08:12,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16b09260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:12, skipping insertion in model container [2022-01-11 07:08:12,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:08:12" (1/1) ... [2022-01-11 07:08:12,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 07:08:12,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 07:08:14,321 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_label45+token_ring.06.cil-1.c[380323,380336] [2022-01-11 07:08:14,347 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_label45+token_ring.06.cil-1.c[383339,383352] [2022-01-11 07:08:14,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:08:14,562 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 07:08:15,347 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_label45+token_ring.06.cil-1.c[380323,380336] [2022-01-11 07:08:15,361 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_label45+token_ring.06.cil-1.c[383339,383352] [2022-01-11 07:08:15,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:08:15,437 INFO L208 MainTranslator]: Completed translation [2022-01-11 07:08:15,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:15 WrapperNode [2022-01-11 07:08:15,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 07:08:15,439 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 07:08:15,439 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 07:08:15,439 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 07:08:15,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:15" (1/1) ... [2022-01-11 07:08:15,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:15" (1/1) ... [2022-01-11 07:08:16,058 INFO L137 Inliner]: procedures = 57, calls = 60, calls flagged for inlining = 55, calls inlined = 124, statements flattened = 13997 [2022-01-11 07:08:16,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 07:08:16,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 07:08:16,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 07:08:16,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 07:08:16,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:15" (1/1) ... [2022-01-11 07:08:16,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:15" (1/1) ... [2022-01-11 07:08:16,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:15" (1/1) ... [2022-01-11 07:08:16,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:15" (1/1) ... [2022-01-11 07:08:16,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:15" (1/1) ... [2022-01-11 07:08:16,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:15" (1/1) ... [2022-01-11 07:08:16,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:15" (1/1) ... [2022-01-11 07:08:16,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 07:08:16,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 07:08:16,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 07:08:16,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 07:08:16,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:15" (1/1) ... [2022-01-11 07:08:16,608 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:08:16,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 07:08:16,637 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 07:08:16,657 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 07:08:16,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 07:08:16,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 07:08:16,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 07:08:16,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 07:08:16,811 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 07:08:16,812 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 07:08:26,034 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 07:08:26,058 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 07:08:26,059 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-01-11 07:08:26,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:08:26 BoogieIcfgContainer [2022-01-11 07:08:26,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 07:08:26,064 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 07:08:26,064 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 07:08:26,066 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 07:08:26,068 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:08:26" (1/1) ... [2022-01-11 07:08:27,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:08:27 BasicIcfg [2022-01-11 07:08:27,846 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 07:08:27,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 07:08:27,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 07:08:27,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 07:08:27,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 07:08:12" (1/4) ... [2022-01-11 07:08:27,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178c5360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:08:27, skipping insertion in model container [2022-01-11 07:08:27,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:15" (2/4) ... [2022-01-11 07:08:27,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178c5360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:08:27, skipping insertion in model container [2022-01-11 07:08:27,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:08:26" (3/4) ... [2022-01-11 07:08:27,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178c5360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 07:08:27, skipping insertion in model container [2022-01-11 07:08:27,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:08:27" (4/4) ... [2022-01-11 07:08:27,854 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.06.cil-1.cTransformedIcfg [2022-01-11 07:08:27,858 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 07:08:27,858 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 07:08:27,913 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 07:08:27,919 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 07:08:27,920 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 07:08:27,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 2879 states, 2875 states have (on average 1.7888695652173914) internal successors, (5143), 2878 states have internal predecessors, (5143), 0 states have call successors, (0), 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 07:08:27,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 07:08:27,989 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:27,989 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] [2022-01-11 07:08:27,990 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 07:08:27,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:27,994 INFO L85 PathProgramCache]: Analyzing trace with hash -367206436, now seen corresponding path program 1 times [2022-01-11 07:08:28,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:28,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706317841] [2022-01-11 07:08:28,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:28,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:28,318 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 07:08:28,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:28,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706317841] [2022-01-11 07:08:28,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706317841] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:28,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:28,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:28,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205095091] [2022-01-11 07:08:28,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:28,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:28,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:28,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:28,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:28,363 INFO L87 Difference]: Start difference. First operand has 2879 states, 2875 states have (on average 1.7888695652173914) internal successors, (5143), 2878 states have internal predecessors, (5143), 0 states have call successors, (0), 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 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:28,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:28,705 INFO L93 Difference]: Finished difference Result 6295 states and 11099 transitions. [2022-01-11 07:08:28,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:28,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 07:08:28,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:28,740 INFO L225 Difference]: With dead ends: 6295 [2022-01-11 07:08:28,740 INFO L226 Difference]: Without dead ends: 3359 [2022-01-11 07:08:28,752 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 07:08:28,757 INFO L933 BasicCegarLoop]: 5052 mSDtfsCounter, 4967 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4967 SdHoareTripleChecker+Valid, 5936 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:28,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4967 Valid, 5936 Invalid, 14 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:08:28,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3359 states. [2022-01-11 07:08:28,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3359 to 3355. [2022-01-11 07:08:28,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.7297136038186158) internal successors, (5798), 3354 states have internal predecessors, (5798), 0 states have call successors, (0), 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 07:08:28,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5798 transitions. [2022-01-11 07:08:28,961 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5798 transitions. Word has length 99 [2022-01-11 07:08:28,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:28,961 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5798 transitions. [2022-01-11 07:08:28,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:28,963 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5798 transitions. [2022-01-11 07:08:28,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 07:08:28,969 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:28,970 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] [2022-01-11 07:08:28,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 07:08:28,970 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 07:08:28,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:28,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1494091516, now seen corresponding path program 1 times [2022-01-11 07:08:28,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:28,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432593352] [2022-01-11 07:08:28,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:28,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:29,111 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 07:08:29,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:29,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432593352] [2022-01-11 07:08:29,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432593352] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:29,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:29,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:29,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367465670] [2022-01-11 07:08:29,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:29,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:29,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:29,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:29,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:29,115 INFO L87 Difference]: Start difference. First operand 3355 states and 5798 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:29,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:29,212 INFO L93 Difference]: Finished difference Result 4575 states and 7616 transitions. [2022-01-11 07:08:29,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:29,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 07:08:29,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:29,228 INFO L225 Difference]: With dead ends: 4575 [2022-01-11 07:08:29,229 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 07:08:29,234 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 07:08:29,235 INFO L933 BasicCegarLoop]: 4979 mSDtfsCounter, 4970 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4970 SdHoareTripleChecker+Valid, 4979 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 07:08:29,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4970 Valid, 4979 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:29,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 07:08:29,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 07:08:29,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.727326968973747) internal successors, (5790), 3354 states have internal predecessors, (5790), 0 states have call successors, (0), 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 07:08:29,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5790 transitions. [2022-01-11 07:08:29,444 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5790 transitions. Word has length 99 [2022-01-11 07:08:29,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:29,445 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5790 transitions. [2022-01-11 07:08:29,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:29,446 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5790 transitions. [2022-01-11 07:08:29,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 07:08:29,451 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:29,452 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] [2022-01-11 07:08:29,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 07:08:29,458 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 07:08:29,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:29,458 INFO L85 PathProgramCache]: Analyzing trace with hash 30112732, now seen corresponding path program 1 times [2022-01-11 07:08:29,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:29,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544800412] [2022-01-11 07:08:29,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:29,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:29,557 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 07:08:29,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:29,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544800412] [2022-01-11 07:08:29,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544800412] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:29,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:29,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:29,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362106238] [2022-01-11 07:08:29,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:29,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:29,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:29,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:29,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:29,560 INFO L87 Difference]: Start difference. First operand 3355 states and 5790 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:29,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:29,640 INFO L93 Difference]: Finished difference Result 4573 states and 7597 transitions. [2022-01-11 07:08:29,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:29,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 07:08:29,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:29,655 INFO L225 Difference]: With dead ends: 4573 [2022-01-11 07:08:29,655 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 07:08:29,664 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 07:08:29,667 INFO L933 BasicCegarLoop]: 4974 mSDtfsCounter, 4963 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4963 SdHoareTripleChecker+Valid, 4974 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 07:08:29,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4963 Valid, 4974 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:29,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 07:08:29,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 07:08:29,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.7249403341288783) internal successors, (5782), 3354 states have internal predecessors, (5782), 0 states have call successors, (0), 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 07:08:29,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5782 transitions. [2022-01-11 07:08:29,775 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5782 transitions. Word has length 99 [2022-01-11 07:08:29,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:29,775 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5782 transitions. [2022-01-11 07:08:29,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:29,775 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5782 transitions. [2022-01-11 07:08:29,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 07:08:29,776 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:29,777 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] [2022-01-11 07:08:29,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 07:08:29,777 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 07:08:29,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:29,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1423923012, now seen corresponding path program 1 times [2022-01-11 07:08:29,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:29,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713131305] [2022-01-11 07:08:29,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:29,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:29,819 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 07:08:29,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:29,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713131305] [2022-01-11 07:08:29,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713131305] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:29,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:29,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:29,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958496864] [2022-01-11 07:08:29,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:29,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:29,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:29,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:29,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:29,822 INFO L87 Difference]: Start difference. First operand 3355 states and 5782 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:29,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:29,904 INFO L93 Difference]: Finished difference Result 4572 states and 7580 transitions. [2022-01-11 07:08:29,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:29,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 07:08:29,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:29,920 INFO L225 Difference]: With dead ends: 4572 [2022-01-11 07:08:29,920 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 07:08:29,924 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 07:08:29,925 INFO L933 BasicCegarLoop]: 4969 mSDtfsCounter, 4957 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4957 SdHoareTripleChecker+Valid, 4969 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 07:08:29,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4957 Valid, 4969 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:29,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 07:08:30,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 07:08:30,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.7225536992840096) internal successors, (5774), 3354 states have internal predecessors, (5774), 0 states have call successors, (0), 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 07:08:30,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5774 transitions. [2022-01-11 07:08:30,083 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5774 transitions. Word has length 99 [2022-01-11 07:08:30,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:30,083 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5774 transitions. [2022-01-11 07:08:30,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:30,084 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5774 transitions. [2022-01-11 07:08:30,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 07:08:30,085 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:30,085 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] [2022-01-11 07:08:30,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 07:08:30,085 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 07:08:30,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:30,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1577213916, now seen corresponding path program 1 times [2022-01-11 07:08:30,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:30,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146073451] [2022-01-11 07:08:30,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:30,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:30,142 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 07:08:30,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:30,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146073451] [2022-01-11 07:08:30,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146073451] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:30,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:30,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:30,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415759246] [2022-01-11 07:08:30,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:30,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:30,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:30,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:30,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:30,145 INFO L87 Difference]: Start difference. First operand 3355 states and 5774 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:30,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:30,228 INFO L93 Difference]: Finished difference Result 4571 states and 7563 transitions. [2022-01-11 07:08:30,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:30,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 07:08:30,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:30,242 INFO L225 Difference]: With dead ends: 4571 [2022-01-11 07:08:30,242 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 07:08:30,246 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 07:08:30,246 INFO L933 BasicCegarLoop]: 4964 mSDtfsCounter, 4951 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4951 SdHoareTripleChecker+Valid, 4964 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 07:08:30,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4951 Valid, 4964 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:30,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 07:08:30,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 07:08:30,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.720167064439141) internal successors, (5766), 3354 states have internal predecessors, (5766), 0 states have call successors, (0), 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 07:08:30,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5766 transitions. [2022-01-11 07:08:30,346 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5766 transitions. Word has length 99 [2022-01-11 07:08:30,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:30,346 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5766 transitions. [2022-01-11 07:08:30,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:30,347 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5766 transitions. [2022-01-11 07:08:30,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 07:08:30,348 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:30,348 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] [2022-01-11 07:08:30,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 07:08:30,348 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 07:08:30,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:30,349 INFO L85 PathProgramCache]: Analyzing trace with hash 981288124, now seen corresponding path program 1 times [2022-01-11 07:08:30,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:30,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446676994] [2022-01-11 07:08:30,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:30,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:30,386 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 07:08:30,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:30,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446676994] [2022-01-11 07:08:30,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446676994] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:30,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:30,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:30,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498861621] [2022-01-11 07:08:30,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:30,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:30,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:30,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:30,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:30,388 INFO L87 Difference]: Start difference. First operand 3355 states and 5766 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:30,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:30,504 INFO L93 Difference]: Finished difference Result 4569 states and 7544 transitions. [2022-01-11 07:08:30,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:30,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 07:08:30,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:30,518 INFO L225 Difference]: With dead ends: 4569 [2022-01-11 07:08:30,518 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 07:08:30,522 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 07:08:30,523 INFO L933 BasicCegarLoop]: 4941 mSDtfsCounter, 4863 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4863 SdHoareTripleChecker+Valid, 5009 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:30,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4863 Valid, 5009 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:30,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 07:08:30,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 07:08:30,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.7130071599045347) internal successors, (5742), 3354 states have internal predecessors, (5742), 0 states have call successors, (0), 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 07:08:30,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5742 transitions. [2022-01-11 07:08:30,626 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5742 transitions. Word has length 99 [2022-01-11 07:08:30,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:30,626 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5742 transitions. [2022-01-11 07:08:30,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:30,627 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5742 transitions. [2022-01-11 07:08:30,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 07:08:30,628 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:30,629 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] [2022-01-11 07:08:30,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 07:08:30,629 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 07:08:30,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:30,630 INFO L85 PathProgramCache]: Analyzing trace with hash 488134171, now seen corresponding path program 1 times [2022-01-11 07:08:30,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:30,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364182575] [2022-01-11 07:08:30,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:30,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:30,665 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 07:08:30,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:30,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364182575] [2022-01-11 07:08:30,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364182575] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:30,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:30,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:30,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681430392] [2022-01-11 07:08:30,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:30,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:30,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:30,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:30,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:30,668 INFO L87 Difference]: Start difference. First operand 3355 states and 5742 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:30,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:30,774 INFO L93 Difference]: Finished difference Result 4568 states and 7495 transitions. [2022-01-11 07:08:30,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:30,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 07:08:30,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:30,789 INFO L225 Difference]: With dead ends: 4568 [2022-01-11 07:08:30,790 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 07:08:30,794 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 07:08:30,794 INFO L933 BasicCegarLoop]: 4927 mSDtfsCounter, 4849 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4849 SdHoareTripleChecker+Valid, 4994 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:30,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4849 Valid, 4994 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:30,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 07:08:30,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 07:08:30,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.7058472553699284) internal successors, (5718), 3354 states have internal predecessors, (5718), 0 states have call successors, (0), 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 07:08:30,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5718 transitions. [2022-01-11 07:08:30,912 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5718 transitions. Word has length 99 [2022-01-11 07:08:30,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:30,912 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5718 transitions. [2022-01-11 07:08:30,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:30,913 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5718 transitions. [2022-01-11 07:08:30,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 07:08:30,914 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:30,914 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] [2022-01-11 07:08:30,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 07:08:30,914 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 07:08:30,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:30,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1925964550, now seen corresponding path program 1 times [2022-01-11 07:08:30,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:30,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410894100] [2022-01-11 07:08:30,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:30,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:30,954 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 07:08:30,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:30,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410894100] [2022-01-11 07:08:30,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410894100] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:30,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:30,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:30,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944508253] [2022-01-11 07:08:30,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:30,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:30,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:30,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:30,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:30,956 INFO L87 Difference]: Start difference. First operand 3355 states and 5718 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:31,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:31,100 INFO L93 Difference]: Finished difference Result 4567 states and 7446 transitions. [2022-01-11 07:08:31,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:31,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 07:08:31,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:31,110 INFO L225 Difference]: With dead ends: 4567 [2022-01-11 07:08:31,110 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 07:08:31,114 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 07:08:31,115 INFO L933 BasicCegarLoop]: 4913 mSDtfsCounter, 4835 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4835 SdHoareTripleChecker+Valid, 4979 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:31,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4835 Valid, 4979 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:31,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 07:08:31,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 07:08:31,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.6986873508353222) internal successors, (5694), 3354 states have internal predecessors, (5694), 0 states have call successors, (0), 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 07:08:31,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5694 transitions. [2022-01-11 07:08:31,225 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5694 transitions. Word has length 99 [2022-01-11 07:08:31,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:31,225 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5694 transitions. [2022-01-11 07:08:31,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:31,226 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5694 transitions. [2022-01-11 07:08:31,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 07:08:31,227 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:31,227 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] [2022-01-11 07:08:31,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 07:08:31,227 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 07:08:31,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:31,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1607176999, now seen corresponding path program 1 times [2022-01-11 07:08:31,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:31,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175782166] [2022-01-11 07:08:31,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:31,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:31,281 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 07:08:31,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:31,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175782166] [2022-01-11 07:08:31,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175782166] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:31,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:31,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:31,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226214892] [2022-01-11 07:08:31,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:31,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:31,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:31,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:31,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:31,284 INFO L87 Difference]: Start difference. First operand 3355 states and 5694 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:31,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:31,403 INFO L93 Difference]: Finished difference Result 4566 states and 7397 transitions. [2022-01-11 07:08:31,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:31,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 07:08:31,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:31,416 INFO L225 Difference]: With dead ends: 4566 [2022-01-11 07:08:31,417 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 07:08:31,420 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 07:08:31,422 INFO L933 BasicCegarLoop]: 4899 mSDtfsCounter, 4821 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4821 SdHoareTripleChecker+Valid, 4964 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:31,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4821 Valid, 4964 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:31,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 07:08:31,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 07:08:31,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.691527446300716) internal successors, (5670), 3354 states have internal predecessors, (5670), 0 states have call successors, (0), 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 07:08:31,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5670 transitions. [2022-01-11 07:08:31,533 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5670 transitions. Word has length 99 [2022-01-11 07:08:31,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:31,533 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5670 transitions. [2022-01-11 07:08:31,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:31,537 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5670 transitions. [2022-01-11 07:08:31,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 07:08:31,538 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:31,538 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] [2022-01-11 07:08:31,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 07:08:31,539 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 07:08:31,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:31,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1730026952, now seen corresponding path program 1 times [2022-01-11 07:08:31,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:31,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718298092] [2022-01-11 07:08:31,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:31,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:31,581 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 07:08:31,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:31,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718298092] [2022-01-11 07:08:31,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718298092] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:31,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:31,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:31,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284712577] [2022-01-11 07:08:31,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:31,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:31,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:31,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:31,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:31,584 INFO L87 Difference]: Start difference. First operand 3355 states and 5670 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:31,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:31,697 INFO L93 Difference]: Finished difference Result 4565 states and 7348 transitions. [2022-01-11 07:08:31,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:31,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 07:08:31,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:31,706 INFO L225 Difference]: With dead ends: 4565 [2022-01-11 07:08:31,707 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 07:08:31,711 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 07:08:31,712 INFO L933 BasicCegarLoop]: 4885 mSDtfsCounter, 4807 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4807 SdHoareTripleChecker+Valid, 4949 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:31,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4807 Valid, 4949 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:31,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 07:08:31,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 07:08:31,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.6843675417661097) internal successors, (5646), 3354 states have internal predecessors, (5646), 0 states have call successors, (0), 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 07:08:31,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5646 transitions. [2022-01-11 07:08:31,820 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5646 transitions. Word has length 99 [2022-01-11 07:08:31,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:31,820 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5646 transitions. [2022-01-11 07:08:31,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:31,821 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5646 transitions. [2022-01-11 07:08:31,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 07:08:31,822 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:31,822 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] [2022-01-11 07:08:31,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 07:08:31,822 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 07:08:31,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:31,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1258729864, now seen corresponding path program 1 times [2022-01-11 07:08:31,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:31,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467327958] [2022-01-11 07:08:31,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:31,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:31,871 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 07:08:31,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:31,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467327958] [2022-01-11 07:08:31,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467327958] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:31,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:31,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:31,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124683311] [2022-01-11 07:08:31,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:31,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:31,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:31,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:31,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:31,874 INFO L87 Difference]: Start difference. First operand 3355 states and 5646 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:31,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:31,996 INFO L93 Difference]: Finished difference Result 4564 states and 7299 transitions. [2022-01-11 07:08:31,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:31,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 07:08:31,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:32,005 INFO L225 Difference]: With dead ends: 4564 [2022-01-11 07:08:32,005 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 07:08:32,008 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 07:08:32,009 INFO L933 BasicCegarLoop]: 4871 mSDtfsCounter, 4793 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4793 SdHoareTripleChecker+Valid, 4934 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:32,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4793 Valid, 4934 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:32,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 07:08:32,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 07:08:32,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.6772076372315037) internal successors, (5622), 3354 states have internal predecessors, (5622), 0 states have call successors, (0), 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 07:08:32,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5622 transitions. [2022-01-11 07:08:32,117 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5622 transitions. Word has length 99 [2022-01-11 07:08:32,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:32,118 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5622 transitions. [2022-01-11 07:08:32,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:32,118 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5622 transitions. [2022-01-11 07:08:32,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 07:08:32,119 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:32,119 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] [2022-01-11 07:08:32,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 07:08:32,120 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 07:08:32,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:32,120 INFO L85 PathProgramCache]: Analyzing trace with hash 538191256, now seen corresponding path program 1 times [2022-01-11 07:08:32,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:32,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196111296] [2022-01-11 07:08:32,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:32,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:32,167 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 07:08:32,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:32,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196111296] [2022-01-11 07:08:32,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196111296] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:32,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:32,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:32,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369414034] [2022-01-11 07:08:32,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:32,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:32,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:32,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:32,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:32,169 INFO L87 Difference]: Start difference. First operand 3355 states and 5622 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:32,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:32,303 INFO L93 Difference]: Finished difference Result 4563 states and 7250 transitions. [2022-01-11 07:08:32,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:32,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 07:08:32,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:32,312 INFO L225 Difference]: With dead ends: 4563 [2022-01-11 07:08:32,312 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 07:08:32,315 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 07:08:32,316 INFO L933 BasicCegarLoop]: 4857 mSDtfsCounter, 4779 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4779 SdHoareTripleChecker+Valid, 4919 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:32,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4779 Valid, 4919 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:32,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 07:08:32,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 07:08:32,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.6700477326968974) internal successors, (5598), 3354 states have internal predecessors, (5598), 0 states have call successors, (0), 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 07:08:32,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5598 transitions. [2022-01-11 07:08:32,450 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5598 transitions. Word has length 99 [2022-01-11 07:08:32,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:32,450 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5598 transitions. [2022-01-11 07:08:32,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:32,451 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5598 transitions. [2022-01-11 07:08:32,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 07:08:32,452 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:32,452 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] [2022-01-11 07:08:32,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 07:08:32,453 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 07:08:32,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:32,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1446366601, now seen corresponding path program 1 times [2022-01-11 07:08:32,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:32,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90697683] [2022-01-11 07:08:32,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:32,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:32,518 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 07:08:32,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:32,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90697683] [2022-01-11 07:08:32,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90697683] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:32,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:32,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:08:32,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769676553] [2022-01-11 07:08:32,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:32,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:08:32,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:32,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:08:32,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:08:32,521 INFO L87 Difference]: Start difference. First operand 3355 states and 5598 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:32,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:32,783 INFO L93 Difference]: Finished difference Result 5183 states and 8069 transitions. [2022-01-11 07:08:32,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:08:32,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 07:08:32,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:32,794 INFO L225 Difference]: With dead ends: 5183 [2022-01-11 07:08:32,795 INFO L226 Difference]: Without dead ends: 3989 [2022-01-11 07:08:32,800 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 07:08:32,801 INFO L933 BasicCegarLoop]: 4931 mSDtfsCounter, 2439 mSDsluCounter, 13248 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2439 SdHoareTripleChecker+Valid, 18179 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:32,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2439 Valid, 18179 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:08:32,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3989 states. [2022-01-11 07:08:32,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3989 to 3361. [2022-01-11 07:08:32,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3361 states, 3358 states have (on average 1.6640857653365098) internal successors, (5588), 3360 states have internal predecessors, (5588), 0 states have call successors, (0), 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 07:08:32,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3361 states to 3361 states and 5588 transitions. [2022-01-11 07:08:32,918 INFO L78 Accepts]: Start accepts. Automaton has 3361 states and 5588 transitions. Word has length 99 [2022-01-11 07:08:32,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:32,919 INFO L470 AbstractCegarLoop]: Abstraction has 3361 states and 5588 transitions. [2022-01-11 07:08:32,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:32,919 INFO L276 IsEmpty]: Start isEmpty. Operand 3361 states and 5588 transitions. [2022-01-11 07:08:32,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 07:08:32,920 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:32,921 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] [2022-01-11 07:08:32,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 07:08:32,921 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 07:08:32,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:32,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1681904376, now seen corresponding path program 1 times [2022-01-11 07:08:32,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:32,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433389523] [2022-01-11 07:08:32,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:32,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:32,985 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 07:08:32,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:32,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433389523] [2022-01-11 07:08:32,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433389523] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:32,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:32,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:08:32,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143851753] [2022-01-11 07:08:32,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:32,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:08:32,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:32,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:08:32,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:08:32,987 INFO L87 Difference]: Start difference. First operand 3361 states and 5588 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:33,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:33,288 INFO L93 Difference]: Finished difference Result 5582 states and 8543 transitions. [2022-01-11 07:08:33,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:08:33,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 07:08:33,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:33,299 INFO L225 Difference]: With dead ends: 5582 [2022-01-11 07:08:33,299 INFO L226 Difference]: Without dead ends: 4417 [2022-01-11 07:08:33,303 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 07:08:33,304 INFO L933 BasicCegarLoop]: 4830 mSDtfsCounter, 1878 mSDsluCounter, 14268 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1878 SdHoareTripleChecker+Valid, 19098 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:33,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1878 Valid, 19098 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:08:33,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4417 states. [2022-01-11 07:08:33,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4417 to 3367. [2022-01-11 07:08:33,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3367 states, 3364 states have (on average 1.6581450653983354) internal successors, (5578), 3366 states have internal predecessors, (5578), 0 states have call successors, (0), 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 07:08:33,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3367 states to 3367 states and 5578 transitions. [2022-01-11 07:08:33,429 INFO L78 Accepts]: Start accepts. Automaton has 3367 states and 5578 transitions. Word has length 99 [2022-01-11 07:08:33,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:33,429 INFO L470 AbstractCegarLoop]: Abstraction has 3367 states and 5578 transitions. [2022-01-11 07:08:33,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:33,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3367 states and 5578 transitions. [2022-01-11 07:08:33,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 07:08:33,431 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:33,431 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] [2022-01-11 07:08:33,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 07:08:33,431 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 07:08:33,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:33,432 INFO L85 PathProgramCache]: Analyzing trace with hash 2032704313, now seen corresponding path program 1 times [2022-01-11 07:08:33,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:33,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358087920] [2022-01-11 07:08:33,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:33,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:33,487 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 07:08:33,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:33,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358087920] [2022-01-11 07:08:33,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358087920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:33,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:33,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:33,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218818322] [2022-01-11 07:08:33,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:33,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:33,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:33,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:33,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:33,490 INFO L87 Difference]: Start difference. First operand 3367 states and 5578 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:33,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:33,609 INFO L93 Difference]: Finished difference Result 4598 states and 7175 transitions. [2022-01-11 07:08:33,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:33,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 07:08:33,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:33,617 INFO L225 Difference]: With dead ends: 4598 [2022-01-11 07:08:33,618 INFO L226 Difference]: Without dead ends: 3367 [2022-01-11 07:08:33,622 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 07:08:33,623 INFO L933 BasicCegarLoop]: 4843 mSDtfsCounter, 4776 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4776 SdHoareTripleChecker+Valid, 4843 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 07:08:33,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4776 Valid, 4843 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:33,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3367 states. [2022-01-11 07:08:33,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3367 to 3367. [2022-01-11 07:08:33,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3367 states, 3364 states have (on average 1.6557669441141498) internal successors, (5570), 3366 states have internal predecessors, (5570), 0 states have call successors, (0), 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 07:08:33,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3367 states to 3367 states and 5570 transitions. [2022-01-11 07:08:33,764 INFO L78 Accepts]: Start accepts. Automaton has 3367 states and 5570 transitions. Word has length 99 [2022-01-11 07:08:33,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:33,764 INFO L470 AbstractCegarLoop]: Abstraction has 3367 states and 5570 transitions. [2022-01-11 07:08:33,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:33,765 INFO L276 IsEmpty]: Start isEmpty. Operand 3367 states and 5570 transitions. [2022-01-11 07:08:33,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 07:08:33,766 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:33,766 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] [2022-01-11 07:08:33,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 07:08:33,766 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 07:08:33,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:33,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1300648966, now seen corresponding path program 1 times [2022-01-11 07:08:33,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:33,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456825502] [2022-01-11 07:08:33,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:33,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:33,820 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 07:08:33,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:33,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456825502] [2022-01-11 07:08:33,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456825502] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:33,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:33,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:33,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81373206] [2022-01-11 07:08:33,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:33,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:33,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:33,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:33,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:33,823 INFO L87 Difference]: Start difference. First operand 3367 states and 5570 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:33,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:33,975 INFO L93 Difference]: Finished difference Result 4594 states and 7155 transitions. [2022-01-11 07:08:33,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:33,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 07:08:33,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:33,984 INFO L225 Difference]: With dead ends: 4594 [2022-01-11 07:08:33,984 INFO L226 Difference]: Without dead ends: 3367 [2022-01-11 07:08:33,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:33,988 INFO L933 BasicCegarLoop]: 4838 mSDtfsCounter, 4767 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4767 SdHoareTripleChecker+Valid, 4838 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 07:08:33,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4767 Valid, 4838 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:33,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3367 states. [2022-01-11 07:08:34,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3367 to 3367. [2022-01-11 07:08:34,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3367 states, 3364 states have (on average 1.6533888228299642) internal successors, (5562), 3366 states have internal predecessors, (5562), 0 states have call successors, (0), 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 07:08:34,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3367 states to 3367 states and 5562 transitions. [2022-01-11 07:08:34,105 INFO L78 Accepts]: Start accepts. Automaton has 3367 states and 5562 transitions. Word has length 99 [2022-01-11 07:08:34,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:34,105 INFO L470 AbstractCegarLoop]: Abstraction has 3367 states and 5562 transitions. [2022-01-11 07:08:34,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:34,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3367 states and 5562 transitions. [2022-01-11 07:08:34,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 07:08:34,107 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:34,107 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] [2022-01-11 07:08:34,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 07:08:34,107 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 07:08:34,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:34,108 INFO L85 PathProgramCache]: Analyzing trace with hash -55884485, now seen corresponding path program 1 times [2022-01-11 07:08:34,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:34,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632817019] [2022-01-11 07:08:34,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:34,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:34,183 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 07:08:34,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:34,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632817019] [2022-01-11 07:08:34,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632817019] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:34,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:34,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:34,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625936960] [2022-01-11 07:08:34,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:34,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:34,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:34,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:34,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:34,185 INFO L87 Difference]: Start difference. First operand 3367 states and 5562 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:34,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:34,398 INFO L93 Difference]: Finished difference Result 5702 states and 8572 transitions. [2022-01-11 07:08:34,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:34,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 07:08:34,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:34,409 INFO L225 Difference]: With dead ends: 5702 [2022-01-11 07:08:34,409 INFO L226 Difference]: Without dead ends: 4484 [2022-01-11 07:08:34,413 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 07:08:34,414 INFO L933 BasicCegarLoop]: 4830 mSDtfsCounter, 4708 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4708 SdHoareTripleChecker+Valid, 5582 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:34,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4708 Valid, 5582 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:34,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4484 states. [2022-01-11 07:08:34,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4484 to 4382. [2022-01-11 07:08:34,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4382 states, 4379 states have (on average 1.5656542589632336) internal successors, (6856), 4381 states have internal predecessors, (6856), 0 states have call successors, (0), 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 07:08:34,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4382 states to 4382 states and 6856 transitions. [2022-01-11 07:08:34,613 INFO L78 Accepts]: Start accepts. Automaton has 4382 states and 6856 transitions. Word has length 99 [2022-01-11 07:08:34,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:34,613 INFO L470 AbstractCegarLoop]: Abstraction has 4382 states and 6856 transitions. [2022-01-11 07:08:34,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:08:34,614 INFO L276 IsEmpty]: Start isEmpty. Operand 4382 states and 6856 transitions. [2022-01-11 07:08:34,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-01-11 07:08:34,617 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:34,617 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] [2022-01-11 07:08:34,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 07:08:34,618 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 07:08:34,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:34,619 INFO L85 PathProgramCache]: Analyzing trace with hash -765661067, now seen corresponding path program 1 times [2022-01-11 07:08:34,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:34,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665580541] [2022-01-11 07:08:34,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:34,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:34,679 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 07:08:34,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:34,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665580541] [2022-01-11 07:08:34,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665580541] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:34,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:34,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:08:34,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214497286] [2022-01-11 07:08:34,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:34,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:34,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:34,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:34,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:34,681 INFO L87 Difference]: Start difference. First operand 4382 states and 6856 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 07:08:35,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:35,098 INFO L93 Difference]: Finished difference Result 8703 states and 12410 transitions. [2022-01-11 07:08:35,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:35,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2022-01-11 07:08:35,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:35,117 INFO L225 Difference]: With dead ends: 8703 [2022-01-11 07:08:35,118 INFO L226 Difference]: Without dead ends: 6476 [2022-01-11 07:08:35,124 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 07:08:35,125 INFO L933 BasicCegarLoop]: 4827 mSDtfsCounter, 4734 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4734 SdHoareTripleChecker+Valid, 5579 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:35,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4734 Valid, 5579 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:35,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6476 states. [2022-01-11 07:08:35,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6476 to 6300. [2022-01-11 07:08:35,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6300 states, 6297 states have (on average 1.4781642051770685) internal successors, (9308), 6299 states have internal predecessors, (9308), 0 states have call successors, (0), 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 07:08:35,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6300 states to 6300 states and 9308 transitions. [2022-01-11 07:08:35,473 INFO L78 Accepts]: Start accepts. Automaton has 6300 states and 9308 transitions. Word has length 160 [2022-01-11 07:08:35,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:35,474 INFO L470 AbstractCegarLoop]: Abstraction has 6300 states and 9308 transitions. [2022-01-11 07:08:35,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 07:08:35,474 INFO L276 IsEmpty]: Start isEmpty. Operand 6300 states and 9308 transitions. [2022-01-11 07:08:35,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-01-11 07:08:35,477 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:35,478 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] [2022-01-11 07:08:35,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 07:08:35,478 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 07:08:35,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:35,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1410631733, now seen corresponding path program 1 times [2022-01-11 07:08:35,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:35,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966742858] [2022-01-11 07:08:35,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:35,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:35,542 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 07:08:35,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:35,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966742858] [2022-01-11 07:08:35,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966742858] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:35,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:35,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:08:35,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739872264] [2022-01-11 07:08:35,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:35,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:35,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:35,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:35,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:35,545 INFO L87 Difference]: Start difference. First operand 6300 states and 9308 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 07:08:36,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:36,072 INFO L93 Difference]: Finished difference Result 14205 states and 19346 transitions. [2022-01-11 07:08:36,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:36,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2022-01-11 07:08:36,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:36,101 INFO L225 Difference]: With dead ends: 14205 [2022-01-11 07:08:36,101 INFO L226 Difference]: Without dead ends: 10115 [2022-01-11 07:08:36,112 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 07:08:36,113 INFO L933 BasicCegarLoop]: 5242 mSDtfsCounter, 4594 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4594 SdHoareTripleChecker+Valid, 6103 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 07:08:36,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4594 Valid, 6103 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:36,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10115 states. [2022-01-11 07:08:36,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10115 to 10111. [2022-01-11 07:08:36,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10111 states, 10108 states have (on average 1.3917688959240206) internal successors, (14068), 10110 states have internal predecessors, (14068), 0 states have call successors, (0), 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 07:08:36,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10111 states to 10111 states and 14068 transitions. [2022-01-11 07:08:36,744 INFO L78 Accepts]: Start accepts. Automaton has 10111 states and 14068 transitions. Word has length 160 [2022-01-11 07:08:36,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:36,744 INFO L470 AbstractCegarLoop]: Abstraction has 10111 states and 14068 transitions. [2022-01-11 07:08:36,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 07:08:36,745 INFO L276 IsEmpty]: Start isEmpty. Operand 10111 states and 14068 transitions. [2022-01-11 07:08:36,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-01-11 07:08:36,751 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:36,751 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] [2022-01-11 07:08:36,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 07:08:36,752 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 07:08:36,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:36,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1104997204, now seen corresponding path program 1 times [2022-01-11 07:08:36,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:36,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604669487] [2022-01-11 07:08:36,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:36,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:36,787 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 07:08:36,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:36,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604669487] [2022-01-11 07:08:36,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604669487] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:36,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:36,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:08:36,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127892202] [2022-01-11 07:08:36,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:36,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:36,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:36,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:36,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:36,789 INFO L87 Difference]: Start difference. First operand 10111 states and 14068 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 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 07:08:37,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:37,248 INFO L93 Difference]: Finished difference Result 17929 states and 23974 transitions. [2022-01-11 07:08:37,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:37,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 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 160 [2022-01-11 07:08:37,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:37,276 INFO L225 Difference]: With dead ends: 17929 [2022-01-11 07:08:37,276 INFO L226 Difference]: Without dead ends: 10028 [2022-01-11 07:08:37,292 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 07:08:37,293 INFO L933 BasicCegarLoop]: 4837 mSDtfsCounter, 875 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 8795 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 07:08:37,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [875 Valid, 8795 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:37,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10028 states. [2022-01-11 07:08:37,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10028 to 10028. [2022-01-11 07:08:37,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10028 states, 10025 states have (on average 1.393416458852868) internal successors, (13969), 10027 states have internal predecessors, (13969), 0 states have call successors, (0), 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 07:08:37,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10028 states to 10028 states and 13969 transitions. [2022-01-11 07:08:37,927 INFO L78 Accepts]: Start accepts. Automaton has 10028 states and 13969 transitions. Word has length 160 [2022-01-11 07:08:37,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:37,927 INFO L470 AbstractCegarLoop]: Abstraction has 10028 states and 13969 transitions. [2022-01-11 07:08:37,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 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 07:08:37,927 INFO L276 IsEmpty]: Start isEmpty. Operand 10028 states and 13969 transitions. [2022-01-11 07:08:37,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-01-11 07:08:37,937 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:37,937 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] [2022-01-11 07:08:37,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 07:08:37,937 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 07:08:37,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:37,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1650772127, now seen corresponding path program 1 times [2022-01-11 07:08:37,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:37,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460705196] [2022-01-11 07:08:37,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:37,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:38,004 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 07:08:38,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:38,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460705196] [2022-01-11 07:08:38,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460705196] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:38,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:38,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:08:38,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507137219] [2022-01-11 07:08:38,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:38,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:38,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:38,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:38,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:38,007 INFO L87 Difference]: Start difference. First operand 10028 states and 13969 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 07:08:38,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:38,871 INFO L93 Difference]: Finished difference Result 25266 states and 33189 transitions. [2022-01-11 07:08:38,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:38,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 161 [2022-01-11 07:08:38,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:38,908 INFO L225 Difference]: With dead ends: 25266 [2022-01-11 07:08:38,908 INFO L226 Difference]: Without dead ends: 17448 [2022-01-11 07:08:38,926 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 07:08:38,927 INFO L933 BasicCegarLoop]: 5043 mSDtfsCounter, 4735 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4735 SdHoareTripleChecker+Valid, 5893 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:38,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4735 Valid, 5893 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:38,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17448 states. [2022-01-11 07:08:39,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17448 to 16932. [2022-01-11 07:08:39,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16932 states, 16929 states have (on average 1.3350463701340893) internal successors, (22601), 16931 states have internal predecessors, (22601), 0 states have call successors, (0), 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 07:08:39,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16932 states to 16932 states and 22601 transitions. [2022-01-11 07:08:39,847 INFO L78 Accepts]: Start accepts. Automaton has 16932 states and 22601 transitions. Word has length 161 [2022-01-11 07:08:39,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:39,847 INFO L470 AbstractCegarLoop]: Abstraction has 16932 states and 22601 transitions. [2022-01-11 07:08:39,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 07:08:39,847 INFO L276 IsEmpty]: Start isEmpty. Operand 16932 states and 22601 transitions. [2022-01-11 07:08:39,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-01-11 07:08:39,856 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:39,857 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] [2022-01-11 07:08:39,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 07:08:39,857 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 07:08:39,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:39,858 INFO L85 PathProgramCache]: Analyzing trace with hash 307592064, now seen corresponding path program 1 times [2022-01-11 07:08:39,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:39,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809038224] [2022-01-11 07:08:39,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:39,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:39,907 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 07:08:39,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:39,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809038224] [2022-01-11 07:08:39,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809038224] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:39,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:39,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:08:39,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714342004] [2022-01-11 07:08:39,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:39,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:39,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:39,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:39,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:39,909 INFO L87 Difference]: Start difference. First operand 16932 states and 22601 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 07:08:40,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:40,633 INFO L93 Difference]: Finished difference Result 31616 states and 41094 transitions. [2022-01-11 07:08:40,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:40,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 161 [2022-01-11 07:08:40,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:40,670 INFO L225 Difference]: With dead ends: 31616 [2022-01-11 07:08:40,670 INFO L226 Difference]: Without dead ends: 16850 [2022-01-11 07:08:40,694 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 07:08:40,695 INFO L933 BasicCegarLoop]: 4836 mSDtfsCounter, 873 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 8794 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 07:08:40,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [873 Valid, 8794 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:40,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16850 states. [2022-01-11 07:08:41,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16850 to 16850. [2022-01-11 07:08:41,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16850 states, 16847 states have (on average 1.3357867869650384) internal successors, (22504), 16849 states have internal predecessors, (22504), 0 states have call successors, (0), 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 07:08:41,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16850 states to 16850 states and 22504 transitions. [2022-01-11 07:08:41,505 INFO L78 Accepts]: Start accepts. Automaton has 16850 states and 22504 transitions. Word has length 161 [2022-01-11 07:08:41,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:41,505 INFO L470 AbstractCegarLoop]: Abstraction has 16850 states and 22504 transitions. [2022-01-11 07:08:41,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 07:08:41,505 INFO L276 IsEmpty]: Start isEmpty. Operand 16850 states and 22504 transitions. [2022-01-11 07:08:41,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-01-11 07:08:41,513 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:41,513 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] [2022-01-11 07:08:41,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 07:08:41,514 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 07:08:41,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:41,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1783421796, now seen corresponding path program 1 times [2022-01-11 07:08:41,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:41,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583587118] [2022-01-11 07:08:41,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:41,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:41,578 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 07:08:41,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:41,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583587118] [2022-01-11 07:08:41,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583587118] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:41,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:41,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:08:41,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69707793] [2022-01-11 07:08:41,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:41,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:41,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:41,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:41,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:41,580 INFO L87 Difference]: Start difference. First operand 16850 states and 22504 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 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 07:08:42,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:42,903 INFO L93 Difference]: Finished difference Result 45147 states and 58058 transitions. [2022-01-11 07:08:42,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:42,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 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 162 [2022-01-11 07:08:42,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:42,963 INFO L225 Difference]: With dead ends: 45147 [2022-01-11 07:08:42,963 INFO L226 Difference]: Without dead ends: 30507 [2022-01-11 07:08:42,992 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 07:08:42,993 INFO L933 BasicCegarLoop]: 5044 mSDtfsCounter, 4623 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4623 SdHoareTripleChecker+Valid, 5892 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 07:08:42,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4623 Valid, 5892 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:43,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30507 states. [2022-01-11 07:08:44,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30507 to 29703. [2022-01-11 07:08:44,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29703 states, 29700 states have (on average 1.2985185185185186) internal successors, (38566), 29702 states have internal predecessors, (38566), 0 states have call successors, (0), 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 07:08:44,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29703 states to 29703 states and 38566 transitions. [2022-01-11 07:08:44,535 INFO L78 Accepts]: Start accepts. Automaton has 29703 states and 38566 transitions. Word has length 162 [2022-01-11 07:08:44,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:44,536 INFO L470 AbstractCegarLoop]: Abstraction has 29703 states and 38566 transitions. [2022-01-11 07:08:44,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 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 07:08:44,536 INFO L276 IsEmpty]: Start isEmpty. Operand 29703 states and 38566 transitions. [2022-01-11 07:08:44,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-01-11 07:08:44,551 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:44,551 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] [2022-01-11 07:08:44,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 07:08:44,551 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 07:08:44,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:44,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1477787267, now seen corresponding path program 1 times [2022-01-11 07:08:44,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:44,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150862116] [2022-01-11 07:08:44,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:44,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:44,717 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 07:08:44,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:44,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150862116] [2022-01-11 07:08:44,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150862116] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:44,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:44,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:08:44,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423257378] [2022-01-11 07:08:44,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:44,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:44,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:44,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:44,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:44,719 INFO L87 Difference]: Start difference. First operand 29703 states and 38566 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 07:08:46,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:46,088 INFO L93 Difference]: Finished difference Result 57152 states and 73018 transitions. [2022-01-11 07:08:46,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:46,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 162 [2022-01-11 07:08:46,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:46,126 INFO L225 Difference]: With dead ends: 57152 [2022-01-11 07:08:46,126 INFO L226 Difference]: Without dead ends: 29622 [2022-01-11 07:08:46,147 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 07:08:46,148 INFO L933 BasicCegarLoop]: 4835 mSDtfsCounter, 871 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 8793 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 07:08:46,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [871 Valid, 8793 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:46,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29622 states. [2022-01-11 07:08:47,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29622 to 29622. [2022-01-11 07:08:47,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29622 states, 29619 states have (on average 1.2988622168202844) internal successors, (38471), 29621 states have internal predecessors, (38471), 0 states have call successors, (0), 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 07:08:47,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29622 states to 29622 states and 38471 transitions. [2022-01-11 07:08:47,607 INFO L78 Accepts]: Start accepts. Automaton has 29622 states and 38471 transitions. Word has length 162 [2022-01-11 07:08:47,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:47,607 INFO L470 AbstractCegarLoop]: Abstraction has 29622 states and 38471 transitions. [2022-01-11 07:08:47,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 07:08:47,607 INFO L276 IsEmpty]: Start isEmpty. Operand 29622 states and 38471 transitions. [2022-01-11 07:08:47,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-01-11 07:08:47,617 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:47,617 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] [2022-01-11 07:08:47,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 07:08:47,617 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 07:08:47,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:47,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1867685166, now seen corresponding path program 1 times [2022-01-11 07:08:47,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:47,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804386688] [2022-01-11 07:08:47,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:47,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:47,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:47,675 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 07:08:47,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:47,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804386688] [2022-01-11 07:08:47,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804386688] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:47,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:47,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:08:47,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866315309] [2022-01-11 07:08:47,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:47,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:47,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:47,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:47,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:47,677 INFO L87 Difference]: Start difference. First operand 29622 states and 38471 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 07:08:50,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:50,621 INFO L93 Difference]: Finished difference Result 82046 states and 104151 transitions. [2022-01-11 07:08:50,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:50,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 163 [2022-01-11 07:08:50,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:50,711 INFO L225 Difference]: With dead ends: 82046 [2022-01-11 07:08:50,711 INFO L226 Difference]: Without dead ends: 54634 [2022-01-11 07:08:50,746 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 07:08:50,747 INFO L933 BasicCegarLoop]: 5046 mSDtfsCounter, 4735 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4735 SdHoareTripleChecker+Valid, 5892 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 07:08:50,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4735 Valid, 5892 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:50,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54634 states. [2022-01-11 07:08:53,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54634 to 53478. [2022-01-11 07:08:53,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53478 states, 53475 states have (on average 1.276166432912576) internal successors, (68243), 53477 states have internal predecessors, (68243), 0 states have call successors, (0), 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 07:08:53,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53478 states to 53478 states and 68243 transitions. [2022-01-11 07:08:53,896 INFO L78 Accepts]: Start accepts. Automaton has 53478 states and 68243 transitions. Word has length 163 [2022-01-11 07:08:53,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:53,897 INFO L470 AbstractCegarLoop]: Abstraction has 53478 states and 68243 transitions. [2022-01-11 07:08:53,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 07:08:53,909 INFO L276 IsEmpty]: Start isEmpty. Operand 53478 states and 68243 transitions. [2022-01-11 07:08:53,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-01-11 07:08:53,929 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:53,930 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] [2022-01-11 07:08:53,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 07:08:53,930 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 07:08:53,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:53,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1326597489, now seen corresponding path program 1 times [2022-01-11 07:08:53,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:53,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249659648] [2022-01-11 07:08:53,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:53,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:53,974 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 07:08:53,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:53,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249659648] [2022-01-11 07:08:53,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249659648] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:53,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:53,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:08:53,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398750646] [2022-01-11 07:08:53,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:53,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:53,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:53,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:53,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:53,976 INFO L87 Difference]: Start difference. First operand 53478 states and 68243 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 07:08:56,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:56,796 INFO L93 Difference]: Finished difference Result 104696 states and 132366 transitions. [2022-01-11 07:08:56,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:56,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 163 [2022-01-11 07:08:56,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:56,886 INFO L225 Difference]: With dead ends: 104696 [2022-01-11 07:08:56,886 INFO L226 Difference]: Without dead ends: 53398 [2022-01-11 07:08:56,929 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 07:08:56,929 INFO L933 BasicCegarLoop]: 4834 mSDtfsCounter, 869 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 8792 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 07:08:56,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [869 Valid, 8792 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:56,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53398 states. [2022-01-11 07:08:59,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53398 to 53398. [2022-01-11 07:08:59,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53398 states, 53395 states have (on average 1.2763367356494053) internal successors, (68150), 53397 states have internal predecessors, (68150), 0 states have call successors, (0), 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 07:08:59,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53398 states to 53398 states and 68150 transitions. [2022-01-11 07:08:59,972 INFO L78 Accepts]: Start accepts. Automaton has 53398 states and 68150 transitions. Word has length 163 [2022-01-11 07:08:59,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:59,973 INFO L470 AbstractCegarLoop]: Abstraction has 53398 states and 68150 transitions. [2022-01-11 07:08:59,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 07:08:59,973 INFO L276 IsEmpty]: Start isEmpty. Operand 53398 states and 68150 transitions. [2022-01-11 07:08:59,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-01-11 07:08:59,987 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:59,987 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] [2022-01-11 07:08:59,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 07:08:59,988 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 07:08:59,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:59,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1445804388, now seen corresponding path program 1 times [2022-01-11 07:08:59,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:59,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057201079] [2022-01-11 07:08:59,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:59,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:09:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:09:00,041 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 07:09:00,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:09:00,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057201079] [2022-01-11 07:09:00,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057201079] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:09:00,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:09:00,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:09:00,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233408407] [2022-01-11 07:09:00,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:09:00,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:09:00,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:09:00,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:09:00,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:09:00,044 INFO L87 Difference]: Start difference. First operand 53398 states and 68150 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)