/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_NONE.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label42+token_ring.09.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 01:12:13,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 01:12:13,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 01:12:13,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 01:12:13,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 01:12:13,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 01:12:13,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 01:12:13,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 01:12:13,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 01:12:13,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 01:12:13,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 01:12:13,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 01:12:13,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 01:12:13,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 01:12:13,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 01:12:13,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 01:12:13,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 01:12:13,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 01:12:13,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 01:12:13,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 01:12:13,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 01:12:13,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 01:12:13,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 01:12:13,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 01:12:13,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 01:12:13,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 01:12:13,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 01:12:13,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 01:12:13,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 01:12:13,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 01:12:13,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 01:12:13,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 01:12:13,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 01:12:13,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 01:12:13,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 01:12:13,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 01:12:13,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 01:12:13,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 01:12:13,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 01:12:13,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 01:12:13,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 01:12:13,196 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-11 01:12:13,219 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 01:12:13,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 01:12:13,220 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 01:12:13,220 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 01:12:13,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 01:12:13,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 01:12:13,221 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 01:12:13,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 01:12:13,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 01:12:13,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 01:12:13,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 01:12:13,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 01:12:13,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 01:12:13,222 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 01:12:13,222 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 01:12:13,222 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 01:12:13,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 01:12:13,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 01:12:13,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 01:12:13,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 01:12:13,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 01:12:13,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:12:13,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 01:12:13,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 01:12:13,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 01:12:13,224 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 01:12:13,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 01:12:13,225 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 01:12:13,225 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 01:12:13,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 01:12:13,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 01:12:13,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 01:12:13,226 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 01:12:13,226 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 01:12:13,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 01:12:13,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 01:12:13,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 01:12:13,389 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 01:12:13,389 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 01:12:13,390 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label42+token_ring.09.cil-2.c [2022-01-11 01:12:13,438 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/532add80d/be4e244c541b41a0b7fd057339233b6f/FLAGfb239b37b [2022-01-11 01:12:14,113 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 01:12:14,114 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label42+token_ring.09.cil-2.c [2022-01-11 01:12:14,157 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/532add80d/be4e244c541b41a0b7fd057339233b6f/FLAGfb239b37b [2022-01-11 01:12:14,455 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/532add80d/be4e244c541b41a0b7fd057339233b6f [2022-01-11 01:12:14,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 01:12:14,460 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 01:12:14,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 01:12:14,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 01:12:14,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 01:12:14,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:12:14" (1/1) ... [2022-01-11 01:12:14,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12fcd881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:12:14, skipping insertion in model container [2022-01-11 01:12:14,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:12:14" (1/1) ... [2022-01-11 01:12:14,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 01:12:14,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 01:12:15,785 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_label42+token_ring.09.cil-2.c[378560,378573] [2022-01-11 01:12:15,803 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_label42+token_ring.09.cil-2.c[383339,383352] [2022-01-11 01:12:16,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:12:16,028 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 01:12:16,590 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_label42+token_ring.09.cil-2.c[378560,378573] [2022-01-11 01:12:16,597 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_label42+token_ring.09.cil-2.c[383339,383352] [2022-01-11 01:12:16,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:12:16,663 INFO L208 MainTranslator]: Completed translation [2022-01-11 01:12:16,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:12:16 WrapperNode [2022-01-11 01:12:16,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 01:12:16,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 01:12:16,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 01:12:16,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 01:12:16,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:12:16" (1/1) ... [2022-01-11 01:12:16,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:12:16" (1/1) ... [2022-01-11 01:12:17,009 INFO L137 Inliner]: procedures = 63, calls = 69, calls flagged for inlining = 64, calls inlined = 193, statements flattened = 15104 [2022-01-11 01:12:17,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 01:12:17,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 01:12:17,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 01:12:17,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 01:12:17,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:12:16" (1/1) ... [2022-01-11 01:12:17,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:12:16" (1/1) ... [2022-01-11 01:12:17,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:12:16" (1/1) ... [2022-01-11 01:12:17,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:12:16" (1/1) ... [2022-01-11 01:12:17,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:12:16" (1/1) ... [2022-01-11 01:12:17,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:12:16" (1/1) ... [2022-01-11 01:12:17,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:12:16" (1/1) ... [2022-01-11 01:12:17,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 01:12:17,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 01:12:17,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 01:12:17,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 01:12:17,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:12:16" (1/1) ... [2022-01-11 01:12:17,552 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:12:17,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 01:12:17,570 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 01:12:17,580 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 01:12:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 01:12:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 01:12:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 01:12:17,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 01:12:17,720 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 01:12:17,721 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 01:12:25,057 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 01:12:25,080 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 01:12:25,080 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2022-01-11 01:12:25,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:12:25 BoogieIcfgContainer [2022-01-11 01:12:25,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 01:12:25,086 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 01:12:25,087 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 01:12:25,088 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 01:12:25,089 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:12:25" (1/1) ... [2022-01-11 01:12:26,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:12:26 BasicIcfg [2022-01-11 01:12:26,386 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 01:12:26,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 01:12:26,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 01:12:26,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 01:12:26,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 01:12:14" (1/4) ... [2022-01-11 01:12:26,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45fc4a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:12:26, skipping insertion in model container [2022-01-11 01:12:26,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:12:16" (2/4) ... [2022-01-11 01:12:26,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45fc4a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:12:26, skipping insertion in model container [2022-01-11 01:12:26,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:12:25" (3/4) ... [2022-01-11 01:12:26,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45fc4a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 01:12:26, skipping insertion in model container [2022-01-11 01:12:26,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:12:26" (4/4) ... [2022-01-11 01:12:26,393 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.09.cil-2.cTransformedIcfg [2022-01-11 01:12:26,398 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 01:12:26,399 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 01:12:26,449 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 01:12:26,456 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 01:12:26,457 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 01:12:26,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 3368 states, 3364 states have (on average 1.7455410225921522) internal successors, (5872), 3367 states have internal predecessors, (5872), 0 states have call successors, (0), 0 states 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 01:12:26,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:26,528 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:26,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:26,529 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 01:12:26,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:26,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1086950077, now seen corresponding path program 1 times [2022-01-11 01:12:26,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:26,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231101803] [2022-01-11 01:12:26,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:26,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:26,845 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 01:12:26,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:26,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231101803] [2022-01-11 01:12:26,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231101803] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:26,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:26,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:26,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970783547] [2022-01-11 01:12:26,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:26,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:26,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:26,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:26,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:26,888 INFO L87 Difference]: Start difference. First operand has 3368 states, 3364 states have (on average 1.7455410225921522) internal successors, (5872), 3367 states have internal predecessors, (5872), 0 states have call successors, (0), 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 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:27,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:27,155 INFO L93 Difference]: Finished difference Result 7702 states and 13190 transitions. [2022-01-11 01:12:27,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:27,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:27,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:27,185 INFO L225 Difference]: With dead ends: 7702 [2022-01-11 01:12:27,185 INFO L226 Difference]: Without dead ends: 4280 [2022-01-11 01:12:27,198 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 01:12:27,201 INFO L933 BasicCegarLoop]: 5814 mSDtfsCounter, 5657 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5657 SdHoareTripleChecker+Valid, 7361 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:12:27,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5657 Valid, 7361 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:12:27,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4280 states. [2022-01-11 01:12:27,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4280 to 4276. [2022-01-11 01:12:27,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6742335595600282) internal successors, (7154), 4275 states have internal predecessors, (7154), 0 states have call successors, (0), 0 states 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 01:12:27,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7154 transitions. [2022-01-11 01:12:27,394 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7154 transitions. Word has length 132 [2022-01-11 01:12:27,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:27,395 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7154 transitions. [2022-01-11 01:12:27,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:27,395 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7154 transitions. [2022-01-11 01:12:27,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:27,397 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:27,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:27,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 01:12:27,397 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 01:12:27,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:27,398 INFO L85 PathProgramCache]: Analyzing trace with hash 498625757, now seen corresponding path program 1 times [2022-01-11 01:12:27,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:27,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959034635] [2022-01-11 01:12:27,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:27,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:27,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:27,464 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 01:12:27,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:27,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959034635] [2022-01-11 01:12:27,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959034635] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:27,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:27,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:27,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039058954] [2022-01-11 01:12:27,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:27,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:27,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:27,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:27,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:27,467 INFO L87 Difference]: Start difference. First operand 4276 states and 7154 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:27,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:27,552 INFO L93 Difference]: Finished difference Result 6413 states and 10320 transitions. [2022-01-11 01:12:27,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:27,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:27,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:27,566 INFO L225 Difference]: With dead ends: 6413 [2022-01-11 01:12:27,567 INFO L226 Difference]: Without dead ends: 4276 [2022-01-11 01:12:27,572 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 01:12:27,573 INFO L933 BasicCegarLoop]: 5702 mSDtfsCounter, 5689 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5689 SdHoareTripleChecker+Valid, 5702 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 01:12:27,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5689 Valid, 5702 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:27,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-11 01:12:27,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-11 01:12:27,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6723613386379592) internal successors, (7146), 4275 states have internal predecessors, (7146), 0 states have call successors, (0), 0 states 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 01:12:27,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7146 transitions. [2022-01-11 01:12:27,668 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7146 transitions. Word has length 132 [2022-01-11 01:12:27,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:27,670 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7146 transitions. [2022-01-11 01:12:27,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:27,671 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7146 transitions. [2022-01-11 01:12:27,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:27,675 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:27,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:27,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 01:12:27,680 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 01:12:27,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:27,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1463375613, now seen corresponding path program 1 times [2022-01-11 01:12:27,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:27,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679959302] [2022-01-11 01:12:27,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:27,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:27,776 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 01:12:27,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:27,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679959302] [2022-01-11 01:12:27,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679959302] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:27,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:27,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:27,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084679741] [2022-01-11 01:12:27,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:27,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:27,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:27,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:27,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:27,778 INFO L87 Difference]: Start difference. First operand 4276 states and 7146 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:27,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:27,860 INFO L93 Difference]: Finished difference Result 6412 states and 10303 transitions. [2022-01-11 01:12:27,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:27,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:27,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:27,875 INFO L225 Difference]: With dead ends: 6412 [2022-01-11 01:12:27,875 INFO L226 Difference]: Without dead ends: 4276 [2022-01-11 01:12:27,882 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 01:12:27,885 INFO L933 BasicCegarLoop]: 5697 mSDtfsCounter, 5683 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5683 SdHoareTripleChecker+Valid, 5697 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 01:12:27,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5683 Valid, 5697 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:27,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-11 01:12:27,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-11 01:12:27,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6704891177158905) internal successors, (7138), 4275 states have internal predecessors, (7138), 0 states have call successors, (0), 0 states 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 01:12:27,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7138 transitions. [2022-01-11 01:12:27,987 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7138 transitions. Word has length 132 [2022-01-11 01:12:27,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:27,988 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7138 transitions. [2022-01-11 01:12:27,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:27,988 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7138 transitions. [2022-01-11 01:12:27,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:27,991 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:27,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:27,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 01:12:27,991 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 01:12:27,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:27,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1830639395, now seen corresponding path program 1 times [2022-01-11 01:12:27,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:27,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671389846] [2022-01-11 01:12:27,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:27,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:28,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:28,062 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 01:12:28,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:28,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671389846] [2022-01-11 01:12:28,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671389846] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:28,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:28,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:28,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089614663] [2022-01-11 01:12:28,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:28,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:28,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:28,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:28,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:28,065 INFO L87 Difference]: Start difference. First operand 4276 states and 7138 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:28,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:28,145 INFO L93 Difference]: Finished difference Result 6411 states and 10286 transitions. [2022-01-11 01:12:28,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:28,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:28,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:28,159 INFO L225 Difference]: With dead ends: 6411 [2022-01-11 01:12:28,159 INFO L226 Difference]: Without dead ends: 4276 [2022-01-11 01:12:28,165 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 01:12:28,170 INFO L933 BasicCegarLoop]: 5692 mSDtfsCounter, 5677 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5677 SdHoareTripleChecker+Valid, 5692 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 01:12:28,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5677 Valid, 5692 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:28,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-11 01:12:28,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-11 01:12:28,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6686168967938217) internal successors, (7130), 4275 states have internal predecessors, (7130), 0 states have call successors, (0), 0 states 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 01:12:28,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7130 transitions. [2022-01-11 01:12:28,283 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7130 transitions. Word has length 132 [2022-01-11 01:12:28,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:28,283 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7130 transitions. [2022-01-11 01:12:28,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:28,284 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7130 transitions. [2022-01-11 01:12:28,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:28,285 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:28,285 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:28,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 01:12:28,285 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 01:12:28,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:28,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1244161283, now seen corresponding path program 1 times [2022-01-11 01:12:28,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:28,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563655711] [2022-01-11 01:12:28,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:28,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:28,512 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 01:12:28,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:28,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563655711] [2022-01-11 01:12:28,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563655711] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:28,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:28,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:28,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406782879] [2022-01-11 01:12:28,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:28,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:28,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:28,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:28,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:28,514 INFO L87 Difference]: Start difference. First operand 4276 states and 7130 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:28,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:28,603 INFO L93 Difference]: Finished difference Result 6409 states and 10267 transitions. [2022-01-11 01:12:28,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:28,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:28,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:28,618 INFO L225 Difference]: With dead ends: 6409 [2022-01-11 01:12:28,618 INFO L226 Difference]: Without dead ends: 4276 [2022-01-11 01:12:28,623 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 01:12:28,623 INFO L933 BasicCegarLoop]: 5687 mSDtfsCounter, 5670 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5670 SdHoareTripleChecker+Valid, 5687 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 01:12:28,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5670 Valid, 5687 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:28,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-11 01:12:28,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-11 01:12:28,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6667446758717528) internal successors, (7122), 4275 states have internal predecessors, (7122), 0 states have call successors, (0), 0 states 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 01:12:28,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7122 transitions. [2022-01-11 01:12:28,722 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7122 transitions. Word has length 132 [2022-01-11 01:12:28,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:28,725 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7122 transitions. [2022-01-11 01:12:28,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:28,726 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7122 transitions. [2022-01-11 01:12:28,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:28,727 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:28,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:28,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 01:12:28,728 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 01:12:28,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:28,728 INFO L85 PathProgramCache]: Analyzing trace with hash 530748701, now seen corresponding path program 1 times [2022-01-11 01:12:28,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:28,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412895845] [2022-01-11 01:12:28,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:28,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:28,782 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 01:12:28,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:28,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412895845] [2022-01-11 01:12:28,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412895845] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:28,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:28,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:28,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521884141] [2022-01-11 01:12:28,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:28,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:28,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:28,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:28,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:28,783 INFO L87 Difference]: Start difference. First operand 4276 states and 7122 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:28,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:28,881 INFO L93 Difference]: Finished difference Result 6408 states and 10250 transitions. [2022-01-11 01:12:28,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:28,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:28,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:28,903 INFO L225 Difference]: With dead ends: 6408 [2022-01-11 01:12:28,904 INFO L226 Difference]: Without dead ends: 4276 [2022-01-11 01:12:28,908 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 01:12:28,909 INFO L933 BasicCegarLoop]: 5682 mSDtfsCounter, 5664 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5664 SdHoareTripleChecker+Valid, 5682 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 01:12:28,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5664 Valid, 5682 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:28,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-11 01:12:28,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-11 01:12:28,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.664872454949684) internal successors, (7114), 4275 states have internal predecessors, (7114), 0 states have call successors, (0), 0 states 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 01:12:29,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7114 transitions. [2022-01-11 01:12:29,004 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7114 transitions. Word has length 132 [2022-01-11 01:12:29,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:29,004 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7114 transitions. [2022-01-11 01:12:29,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:29,004 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7114 transitions. [2022-01-11 01:12:29,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:29,005 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:29,005 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:29,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 01:12:29,006 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 01:12:29,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:29,006 INFO L85 PathProgramCache]: Analyzing trace with hash -243280131, now seen corresponding path program 1 times [2022-01-11 01:12:29,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:29,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079066438] [2022-01-11 01:12:29,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:29,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:29,059 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 01:12:29,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:29,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079066438] [2022-01-11 01:12:29,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079066438] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:29,060 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:29,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:29,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727996468] [2022-01-11 01:12:29,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:29,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:29,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:29,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:29,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:29,062 INFO L87 Difference]: Start difference. First operand 4276 states and 7114 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:29,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:29,141 INFO L93 Difference]: Finished difference Result 6407 states and 10233 transitions. [2022-01-11 01:12:29,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:29,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:29,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:29,150 INFO L225 Difference]: With dead ends: 6407 [2022-01-11 01:12:29,150 INFO L226 Difference]: Without dead ends: 4276 [2022-01-11 01:12:29,154 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 01:12:29,155 INFO L933 BasicCegarLoop]: 5677 mSDtfsCounter, 5658 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5658 SdHoareTripleChecker+Valid, 5677 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 01:12:29,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5658 Valid, 5677 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:29,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-11 01:12:29,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-11 01:12:29,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6630002340276153) internal successors, (7106), 4275 states have internal predecessors, (7106), 0 states have call successors, (0), 0 states 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 01:12:29,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7106 transitions. [2022-01-11 01:12:29,248 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7106 transitions. Word has length 132 [2022-01-11 01:12:29,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:29,248 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7106 transitions. [2022-01-11 01:12:29,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:29,248 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7106 transitions. [2022-01-11 01:12:29,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:29,249 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:29,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:29,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 01:12:29,250 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 01:12:29,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:29,250 INFO L85 PathProgramCache]: Analyzing trace with hash -268248803, now seen corresponding path program 1 times [2022-01-11 01:12:29,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:29,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558871900] [2022-01-11 01:12:29,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:29,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:29,285 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 01:12:29,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:29,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558871900] [2022-01-11 01:12:29,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558871900] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:29,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:29,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:29,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72720206] [2022-01-11 01:12:29,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:29,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:29,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:29,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:29,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:29,286 INFO L87 Difference]: Start difference. First operand 4276 states and 7106 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:29,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:29,364 INFO L93 Difference]: Finished difference Result 6406 states and 10216 transitions. [2022-01-11 01:12:29,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:29,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:29,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:29,371 INFO L225 Difference]: With dead ends: 6406 [2022-01-11 01:12:29,372 INFO L226 Difference]: Without dead ends: 4276 [2022-01-11 01:12:29,375 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 01:12:29,375 INFO L933 BasicCegarLoop]: 5672 mSDtfsCounter, 5652 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5652 SdHoareTripleChecker+Valid, 5672 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 01:12:29,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5652 Valid, 5672 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:29,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-11 01:12:29,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-11 01:12:29,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6611280131055464) internal successors, (7098), 4275 states have internal predecessors, (7098), 0 states have call successors, (0), 0 states 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 01:12:29,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7098 transitions. [2022-01-11 01:12:29,463 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7098 transitions. Word has length 132 [2022-01-11 01:12:29,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:29,463 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7098 transitions. [2022-01-11 01:12:29,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:29,464 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7098 transitions. [2022-01-11 01:12:29,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:29,465 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:29,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:29,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 01:12:29,465 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 01:12:29,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:29,465 INFO L85 PathProgramCache]: Analyzing trace with hash 839324413, now seen corresponding path program 1 times [2022-01-11 01:12:29,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:29,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993039846] [2022-01-11 01:12:29,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:29,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:29,691 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 01:12:29,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:29,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993039846] [2022-01-11 01:12:29,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993039846] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:29,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:29,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:29,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142428496] [2022-01-11 01:12:29,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:29,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:29,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:29,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:29,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:29,692 INFO L87 Difference]: Start difference. First operand 4276 states and 7098 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:29,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:29,794 INFO L93 Difference]: Finished difference Result 6405 states and 10199 transitions. [2022-01-11 01:12:29,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:29,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:29,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:29,801 INFO L225 Difference]: With dead ends: 6405 [2022-01-11 01:12:29,801 INFO L226 Difference]: Without dead ends: 4276 [2022-01-11 01:12:29,805 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 01:12:29,807 INFO L933 BasicCegarLoop]: 5643 mSDtfsCounter, 5532 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5532 SdHoareTripleChecker+Valid, 5741 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:12:29,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5532 Valid, 5741 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:29,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-11 01:12:29,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-11 01:12:29,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6541071846477884) internal successors, (7068), 4275 states have internal predecessors, (7068), 0 states have call successors, (0), 0 states 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 01:12:29,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7068 transitions. [2022-01-11 01:12:29,895 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7068 transitions. Word has length 132 [2022-01-11 01:12:29,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:29,895 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7068 transitions. [2022-01-11 01:12:29,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:29,898 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7068 transitions. [2022-01-11 01:12:29,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:29,899 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:29,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:29,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 01:12:29,899 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 01:12:29,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:29,900 INFO L85 PathProgramCache]: Analyzing trace with hash -345324388, now seen corresponding path program 1 times [2022-01-11 01:12:29,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:29,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983308671] [2022-01-11 01:12:29,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:29,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:29,936 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 01:12:29,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:29,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983308671] [2022-01-11 01:12:29,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983308671] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:29,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:29,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:29,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090701336] [2022-01-11 01:12:29,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:29,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:29,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:29,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:29,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:29,938 INFO L87 Difference]: Start difference. First operand 4276 states and 7068 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:30,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:30,047 INFO L93 Difference]: Finished difference Result 6404 states and 10138 transitions. [2022-01-11 01:12:30,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:30,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:30,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:30,056 INFO L225 Difference]: With dead ends: 6404 [2022-01-11 01:12:30,056 INFO L226 Difference]: Without dead ends: 4276 [2022-01-11 01:12:30,061 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 01:12:30,061 INFO L933 BasicCegarLoop]: 5626 mSDtfsCounter, 5515 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5515 SdHoareTripleChecker+Valid, 5723 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:12:30,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5515 Valid, 5723 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:30,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-11 01:12:30,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-11 01:12:30,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6470863561900304) internal successors, (7038), 4275 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states 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 01:12:30,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7038 transitions. [2022-01-11 01:12:30,160 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7038 transitions. Word has length 132 [2022-01-11 01:12:30,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:30,161 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7038 transitions. [2022-01-11 01:12:30,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:30,161 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7038 transitions. [2022-01-11 01:12:30,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:30,162 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:30,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:30,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 01:12:30,162 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 01:12:30,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:30,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1733170885, now seen corresponding path program 1 times [2022-01-11 01:12:30,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:30,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680561045] [2022-01-11 01:12:30,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:30,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:30,194 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 01:12:30,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:30,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680561045] [2022-01-11 01:12:30,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680561045] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:30,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:30,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:30,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229824493] [2022-01-11 01:12:30,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:30,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:30,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:30,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:30,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:30,196 INFO L87 Difference]: Start difference. First operand 4276 states and 7038 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:30,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:30,307 INFO L93 Difference]: Finished difference Result 6403 states and 10077 transitions. [2022-01-11 01:12:30,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:30,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:30,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:30,315 INFO L225 Difference]: With dead ends: 6403 [2022-01-11 01:12:30,315 INFO L226 Difference]: Without dead ends: 4276 [2022-01-11 01:12:30,318 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 01:12:30,319 INFO L933 BasicCegarLoop]: 5609 mSDtfsCounter, 5498 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5498 SdHoareTripleChecker+Valid, 5705 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:12:30,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5498 Valid, 5705 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:30,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-11 01:12:30,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-11 01:12:30,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6400655277322724) internal successors, (7008), 4275 states have internal predecessors, (7008), 0 states have call successors, (0), 0 states 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 01:12:30,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7008 transitions. [2022-01-11 01:12:30,412 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7008 transitions. Word has length 132 [2022-01-11 01:12:30,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:30,412 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7008 transitions. [2022-01-11 01:12:30,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:30,413 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7008 transitions. [2022-01-11 01:12:30,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:30,414 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:30,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:30,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 01:12:30,414 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 01:12:30,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:30,414 INFO L85 PathProgramCache]: Analyzing trace with hash 287943002, now seen corresponding path program 1 times [2022-01-11 01:12:30,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:30,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534608138] [2022-01-11 01:12:30,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:30,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:30,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:12:30,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:30,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534608138] [2022-01-11 01:12:30,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534608138] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:30,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:30,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:30,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361571462] [2022-01-11 01:12:30,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:30,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:30,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:30,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:30,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:30,446 INFO L87 Difference]: Start difference. First operand 4276 states and 7008 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:30,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:30,633 INFO L93 Difference]: Finished difference Result 6402 states and 10016 transitions. [2022-01-11 01:12:30,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:30,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:30,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:30,640 INFO L225 Difference]: With dead ends: 6402 [2022-01-11 01:12:30,640 INFO L226 Difference]: Without dead ends: 4276 [2022-01-11 01:12:30,643 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 01:12:30,644 INFO L933 BasicCegarLoop]: 5592 mSDtfsCounter, 5481 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5481 SdHoareTripleChecker+Valid, 5687 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:12:30,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5481 Valid, 5687 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:30,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-11 01:12:30,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-11 01:12:30,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6330446992745145) internal successors, (6978), 4275 states have internal predecessors, (6978), 0 states have call successors, (0), 0 states 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 01:12:30,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6978 transitions. [2022-01-11 01:12:30,760 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6978 transitions. Word has length 132 [2022-01-11 01:12:30,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:30,761 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6978 transitions. [2022-01-11 01:12:30,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:30,761 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6978 transitions. [2022-01-11 01:12:30,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:30,762 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:30,762 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:30,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 01:12:30,762 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 01:12:30,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:30,763 INFO L85 PathProgramCache]: Analyzing trace with hash -619326662, now seen corresponding path program 1 times [2022-01-11 01:12:30,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:30,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831311920] [2022-01-11 01:12:30,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:30,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:30,794 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 01:12:30,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:30,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831311920] [2022-01-11 01:12:30,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831311920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:30,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:30,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:30,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737120032] [2022-01-11 01:12:30,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:30,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:30,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:30,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:30,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:30,795 INFO L87 Difference]: Start difference. First operand 4276 states and 6978 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:30,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:30,932 INFO L93 Difference]: Finished difference Result 6401 states and 9955 transitions. [2022-01-11 01:12:30,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:30,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:30,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:30,940 INFO L225 Difference]: With dead ends: 6401 [2022-01-11 01:12:30,940 INFO L226 Difference]: Without dead ends: 4276 [2022-01-11 01:12:30,945 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 01:12:30,946 INFO L933 BasicCegarLoop]: 5575 mSDtfsCounter, 5464 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5464 SdHoareTripleChecker+Valid, 5669 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:12:30,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5464 Valid, 5669 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:30,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-11 01:12:31,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-11 01:12:31,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6260238708167565) internal successors, (6948), 4275 states have internal predecessors, (6948), 0 states have call successors, (0), 0 states 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 01:12:31,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6948 transitions. [2022-01-11 01:12:31,066 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6948 transitions. Word has length 132 [2022-01-11 01:12:31,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:31,066 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6948 transitions. [2022-01-11 01:12:31,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:31,067 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6948 transitions. [2022-01-11 01:12:31,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:31,068 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:31,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:31,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 01:12:31,068 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 01:12:31,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:31,069 INFO L85 PathProgramCache]: Analyzing trace with hash 83452377, now seen corresponding path program 1 times [2022-01-11 01:12:31,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:31,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226012936] [2022-01-11 01:12:31,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:31,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:31,102 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 01:12:31,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:31,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226012936] [2022-01-11 01:12:31,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226012936] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:31,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:31,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:31,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220619537] [2022-01-11 01:12:31,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:31,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:31,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:31,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:31,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:31,104 INFO L87 Difference]: Start difference. First operand 4276 states and 6948 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:31,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:31,237 INFO L93 Difference]: Finished difference Result 6400 states and 9894 transitions. [2022-01-11 01:12:31,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:31,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:31,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:31,245 INFO L225 Difference]: With dead ends: 6400 [2022-01-11 01:12:31,245 INFO L226 Difference]: Without dead ends: 4276 [2022-01-11 01:12:31,250 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 01:12:31,250 INFO L933 BasicCegarLoop]: 5558 mSDtfsCounter, 5447 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5447 SdHoareTripleChecker+Valid, 5651 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:12:31,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5447 Valid, 5651 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:31,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-11 01:12:31,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-11 01:12:31,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6190030423589983) internal successors, (6918), 4275 states have internal predecessors, (6918), 0 states have call successors, (0), 0 states 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 01:12:31,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6918 transitions. [2022-01-11 01:12:31,375 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6918 transitions. Word has length 132 [2022-01-11 01:12:31,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:31,375 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6918 transitions. [2022-01-11 01:12:31,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:31,376 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6918 transitions. [2022-01-11 01:12:31,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:31,377 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:31,377 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:31,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 01:12:31,377 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 01:12:31,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:31,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1876425864, now seen corresponding path program 1 times [2022-01-11 01:12:31,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:31,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593503782] [2022-01-11 01:12:31,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:31,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:31,412 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 01:12:31,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:31,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593503782] [2022-01-11 01:12:31,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593503782] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:31,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:31,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:31,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349866316] [2022-01-11 01:12:31,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:31,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:31,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:31,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:31,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:31,414 INFO L87 Difference]: Start difference. First operand 4276 states and 6918 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:31,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:31,559 INFO L93 Difference]: Finished difference Result 6399 states and 9833 transitions. [2022-01-11 01:12:31,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:31,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:31,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:31,568 INFO L225 Difference]: With dead ends: 6399 [2022-01-11 01:12:31,568 INFO L226 Difference]: Without dead ends: 4276 [2022-01-11 01:12:31,572 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 01:12:31,572 INFO L933 BasicCegarLoop]: 5541 mSDtfsCounter, 5430 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5430 SdHoareTripleChecker+Valid, 5633 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:12:31,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5430 Valid, 5633 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:31,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-11 01:12:31,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-11 01:12:31,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6119822139012403) internal successors, (6888), 4275 states have internal predecessors, (6888), 0 states have call successors, (0), 0 states 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 01:12:31,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6888 transitions. [2022-01-11 01:12:31,723 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6888 transitions. Word has length 132 [2022-01-11 01:12:31,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:31,723 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6888 transitions. [2022-01-11 01:12:31,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:31,723 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6888 transitions. [2022-01-11 01:12:31,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:31,724 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:31,724 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:31,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 01:12:31,725 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 01:12:31,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:31,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1089413271, now seen corresponding path program 1 times [2022-01-11 01:12:31,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:31,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676484786] [2022-01-11 01:12:31,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:31,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:31,757 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 01:12:31,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:31,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676484786] [2022-01-11 01:12:31,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676484786] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:31,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:31,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:31,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631378037] [2022-01-11 01:12:31,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:31,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:31,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:31,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:31,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:31,759 INFO L87 Difference]: Start difference. First operand 4276 states and 6888 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:31,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:31,874 INFO L93 Difference]: Finished difference Result 6398 states and 9772 transitions. [2022-01-11 01:12:31,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:31,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:31,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:31,884 INFO L225 Difference]: With dead ends: 6398 [2022-01-11 01:12:31,884 INFO L226 Difference]: Without dead ends: 4276 [2022-01-11 01:12:31,887 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 01:12:31,888 INFO L933 BasicCegarLoop]: 5524 mSDtfsCounter, 5413 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5413 SdHoareTripleChecker+Valid, 5615 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:12:31,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5413 Valid, 5615 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:31,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-11 01:12:31,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-11 01:12:31,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6049613854434823) internal successors, (6858), 4275 states have internal predecessors, (6858), 0 states have call successors, (0), 0 states 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 01:12:31,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6858 transitions. [2022-01-11 01:12:31,987 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6858 transitions. Word has length 132 [2022-01-11 01:12:31,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:31,987 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6858 transitions. [2022-01-11 01:12:31,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:31,988 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6858 transitions. [2022-01-11 01:12:31,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:31,988 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:31,989 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:31,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 01:12:31,989 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 01:12:31,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:31,989 INFO L85 PathProgramCache]: Analyzing trace with hash 220668086, now seen corresponding path program 1 times [2022-01-11 01:12:31,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:31,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239948532] [2022-01-11 01:12:31,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:31,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:32,019 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 01:12:32,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:32,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239948532] [2022-01-11 01:12:32,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239948532] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:32,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:32,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:32,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943720673] [2022-01-11 01:12:32,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:32,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:32,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:32,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:32,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:32,020 INFO L87 Difference]: Start difference. First operand 4276 states and 6858 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:32,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:32,140 INFO L93 Difference]: Finished difference Result 6397 states and 9711 transitions. [2022-01-11 01:12:32,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:32,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:32,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:32,146 INFO L225 Difference]: With dead ends: 6397 [2022-01-11 01:12:32,146 INFO L226 Difference]: Without dead ends: 4276 [2022-01-11 01:12:32,149 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 01:12:32,150 INFO L933 BasicCegarLoop]: 5507 mSDtfsCounter, 5396 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5396 SdHoareTripleChecker+Valid, 5597 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:12:32,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5396 Valid, 5597 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:32,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-11 01:12:32,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-11 01:12:32,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.5979405569857243) internal successors, (6828), 4275 states have internal predecessors, (6828), 0 states have call successors, (0), 0 states 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 01:12:32,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6828 transitions. [2022-01-11 01:12:32,247 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6828 transitions. Word has length 132 [2022-01-11 01:12:32,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:32,247 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6828 transitions. [2022-01-11 01:12:32,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:32,247 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6828 transitions. [2022-01-11 01:12:32,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:32,248 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:32,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:32,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 01:12:32,249 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 01:12:32,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:32,249 INFO L85 PathProgramCache]: Analyzing trace with hash 225021013, now seen corresponding path program 1 times [2022-01-11 01:12:32,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:32,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452603849] [2022-01-11 01:12:32,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:32,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:32,276 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 01:12:32,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:32,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452603849] [2022-01-11 01:12:32,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452603849] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:32,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:32,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:32,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421467294] [2022-01-11 01:12:32,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:32,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:32,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:32,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:32,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:32,278 INFO L87 Difference]: Start difference. First operand 4276 states and 6828 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:32,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:32,400 INFO L93 Difference]: Finished difference Result 6396 states and 9650 transitions. [2022-01-11 01:12:32,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:32,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:32,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:32,407 INFO L225 Difference]: With dead ends: 6396 [2022-01-11 01:12:32,407 INFO L226 Difference]: Without dead ends: 4276 [2022-01-11 01:12:32,411 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 01:12:32,411 INFO L933 BasicCegarLoop]: 5490 mSDtfsCounter, 5379 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5379 SdHoareTripleChecker+Valid, 5579 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:12:32,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5379 Valid, 5579 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:32,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-11 01:12:32,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-11 01:12:32,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.5909197285279664) internal successors, (6798), 4275 states have internal predecessors, (6798), 0 states have call successors, (0), 0 states 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 01:12:32,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6798 transitions. [2022-01-11 01:12:32,540 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6798 transitions. Word has length 132 [2022-01-11 01:12:32,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:32,540 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6798 transitions. [2022-01-11 01:12:32,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:32,541 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6798 transitions. [2022-01-11 01:12:32,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:32,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:32,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:32,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 01:12:32,542 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 01:12:32,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:32,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1502522100, now seen corresponding path program 1 times [2022-01-11 01:12:32,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:32,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864719389] [2022-01-11 01:12:32,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:32,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:32,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:32,588 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 01:12:32,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:32,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864719389] [2022-01-11 01:12:32,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864719389] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:32,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:32,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:12:32,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546513143] [2022-01-11 01:12:32,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:32,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:12:32,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:32,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:12:32,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:12:32,590 INFO L87 Difference]: Start difference. First operand 4276 states and 6798 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:32,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:32,867 INFO L93 Difference]: Finished difference Result 7865 states and 11582 transitions. [2022-01-11 01:12:32,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:12:32,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:32,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:32,877 INFO L225 Difference]: With dead ends: 7865 [2022-01-11 01:12:32,877 INFO L226 Difference]: Without dead ends: 5794 [2022-01-11 01:12:32,881 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 01:12:32,882 INFO L933 BasicCegarLoop]: 5517 mSDtfsCounter, 3586 mSDsluCounter, 15214 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3586 SdHoareTripleChecker+Valid, 20731 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:12:32,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3586 Valid, 20731 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:12:32,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5794 states. [2022-01-11 01:12:32,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5794 to 4282. [2022-01-11 01:12:33,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4282 states, 4279 states have (on average 1.5849497546155644) internal successors, (6782), 4281 states have internal predecessors, (6782), 0 states have call successors, (0), 0 states 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 01:12:33,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4282 states to 4282 states and 6782 transitions. [2022-01-11 01:12:33,008 INFO L78 Accepts]: Start accepts. Automaton has 4282 states and 6782 transitions. Word has length 132 [2022-01-11 01:12:33,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:33,008 INFO L470 AbstractCegarLoop]: Abstraction has 4282 states and 6782 transitions. [2022-01-11 01:12:33,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:33,008 INFO L276 IsEmpty]: Start isEmpty. Operand 4282 states and 6782 transitions. [2022-01-11 01:12:33,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:33,009 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:33,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:33,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 01:12:33,010 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 01:12:33,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:33,010 INFO L85 PathProgramCache]: Analyzing trace with hash -2099052491, now seen corresponding path program 1 times [2022-01-11 01:12:33,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:33,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766945912] [2022-01-11 01:12:33,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:33,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:33,046 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 01:12:33,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:33,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766945912] [2022-01-11 01:12:33,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766945912] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:33,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:33,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:33,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421574675] [2022-01-11 01:12:33,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:33,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:33,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:33,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:33,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:33,047 INFO L87 Difference]: Start difference. First operand 4282 states and 6782 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:33,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:33,161 INFO L93 Difference]: Finished difference Result 6426 states and 9578 transitions. [2022-01-11 01:12:33,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:33,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:33,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:33,168 INFO L225 Difference]: With dead ends: 6426 [2022-01-11 01:12:33,168 INFO L226 Difference]: Without dead ends: 4282 [2022-01-11 01:12:33,171 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 01:12:33,172 INFO L933 BasicCegarLoop]: 5485 mSDtfsCounter, 5392 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5392 SdHoareTripleChecker+Valid, 5485 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 01:12:33,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5392 Valid, 5485 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:33,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4282 states. [2022-01-11 01:12:33,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4282 to 4282. [2022-01-11 01:12:33,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4282 states, 4279 states have (on average 1.5830801589156345) internal successors, (6774), 4281 states have internal predecessors, (6774), 0 states have call successors, (0), 0 states 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 01:12:33,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4282 states to 4282 states and 6774 transitions. [2022-01-11 01:12:33,284 INFO L78 Accepts]: Start accepts. Automaton has 4282 states and 6774 transitions. Word has length 132 [2022-01-11 01:12:33,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:33,285 INFO L470 AbstractCegarLoop]: Abstraction has 4282 states and 6774 transitions. [2022-01-11 01:12:33,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:33,285 INFO L276 IsEmpty]: Start isEmpty. Operand 4282 states and 6774 transitions. [2022-01-11 01:12:33,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:33,286 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:33,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:33,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 01:12:33,286 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 01:12:33,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:33,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1073560492, now seen corresponding path program 1 times [2022-01-11 01:12:33,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:33,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349238634] [2022-01-11 01:12:33,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:33,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:33,324 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 01:12:33,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:33,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349238634] [2022-01-11 01:12:33,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349238634] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:33,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:33,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:33,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667422347] [2022-01-11 01:12:33,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:33,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:33,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:33,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:33,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:33,326 INFO L87 Difference]: Start difference. First operand 4282 states and 6774 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:33,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:33,434 INFO L93 Difference]: Finished difference Result 6422 states and 9558 transitions. [2022-01-11 01:12:33,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:33,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:33,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:33,441 INFO L225 Difference]: With dead ends: 6422 [2022-01-11 01:12:33,441 INFO L226 Difference]: Without dead ends: 4282 [2022-01-11 01:12:33,444 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 01:12:33,444 INFO L933 BasicCegarLoop]: 5480 mSDtfsCounter, 5383 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5383 SdHoareTripleChecker+Valid, 5480 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 01:12:33,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5383 Valid, 5480 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:33,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4282 states. [2022-01-11 01:12:33,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4282 to 4282. [2022-01-11 01:12:33,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4282 states, 4279 states have (on average 1.5812105632157045) internal successors, (6766), 4281 states have internal predecessors, (6766), 0 states have call successors, (0), 0 states 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 01:12:33,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4282 states to 4282 states and 6766 transitions. [2022-01-11 01:12:33,571 INFO L78 Accepts]: Start accepts. Automaton has 4282 states and 6766 transitions. Word has length 132 [2022-01-11 01:12:33,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:33,571 INFO L470 AbstractCegarLoop]: Abstraction has 4282 states and 6766 transitions. [2022-01-11 01:12:33,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:33,571 INFO L276 IsEmpty]: Start isEmpty. Operand 4282 states and 6766 transitions. [2022-01-11 01:12:33,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-11 01:12:33,572 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:33,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:12:33,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 01:12:33,573 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 01:12:33,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:33,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1062244365, now seen corresponding path program 1 times [2022-01-11 01:12:33,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:33,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458150922] [2022-01-11 01:12:33,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:33,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:33,625 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 01:12:33,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:33,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458150922] [2022-01-11 01:12:33,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458150922] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:33,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:33,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:12:33,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555071240] [2022-01-11 01:12:33,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:33,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:33,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:33,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:33,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:33,627 INFO L87 Difference]: Start difference. First operand 4282 states and 6766 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:33,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:33,872 INFO L93 Difference]: Finished difference Result 8396 states and 12120 transitions. [2022-01-11 01:12:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:33,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-11 01:12:33,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:33,882 INFO L225 Difference]: With dead ends: 8396 [2022-01-11 01:12:33,882 INFO L226 Difference]: Without dead ends: 6272 [2022-01-11 01:12:33,886 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 01:12:33,887 INFO L933 BasicCegarLoop]: 5469 mSDtfsCounter, 5311 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5311 SdHoareTripleChecker+Valid, 6811 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:12:33,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5311 Valid, 6811 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:33,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6272 states. [2022-01-11 01:12:34,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6272 to 6134. [2022-01-11 01:12:34,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6134 states, 6131 states have (on average 1.4937204371228185) internal successors, (9158), 6133 states have internal predecessors, (9158), 0 states have call successors, (0), 0 states 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 01:12:34,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6134 states to 6134 states and 9158 transitions. [2022-01-11 01:12:34,087 INFO L78 Accepts]: Start accepts. Automaton has 6134 states and 9158 transitions. Word has length 132 [2022-01-11 01:12:34,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:34,087 INFO L470 AbstractCegarLoop]: Abstraction has 6134 states and 9158 transitions. [2022-01-11 01:12:34,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:12:34,087 INFO L276 IsEmpty]: Start isEmpty. Operand 6134 states and 9158 transitions. [2022-01-11 01:12:34,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-01-11 01:12:34,091 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:34,091 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:34,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 01:12:34,091 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 01:12:34,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:34,092 INFO L85 PathProgramCache]: Analyzing trace with hash 878533393, now seen corresponding path program 1 times [2022-01-11 01:12:34,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:34,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463020514] [2022-01-11 01:12:34,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:34,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:34,140 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 01:12:34,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:34,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463020514] [2022-01-11 01:12:34,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463020514] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:34,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:34,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:12:34,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112968834] [2022-01-11 01:12:34,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:34,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:34,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:34,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:34,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:34,141 INFO L87 Difference]: Start difference. First operand 6134 states and 9158 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states 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 01:12:34,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:34,482 INFO L93 Difference]: Finished difference Result 13908 states and 19254 transitions. [2022-01-11 01:12:34,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:34,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2022-01-11 01:12:34,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:34,496 INFO L225 Difference]: With dead ends: 13908 [2022-01-11 01:12:34,496 INFO L226 Difference]: Without dead ends: 9938 [2022-01-11 01:12:34,502 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 01:12:34,502 INFO L933 BasicCegarLoop]: 5466 mSDtfsCounter, 5347 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5347 SdHoareTripleChecker+Valid, 6808 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:12:34,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5347 Valid, 6808 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:34,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9938 states. [2022-01-11 01:12:34,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9938 to 9678. [2022-01-11 01:12:34,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9678 states, 9675 states have (on average 1.4199483204134367) internal successors, (13738), 9677 states have internal predecessors, (13738), 0 states have call successors, (0), 0 states 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 01:12:34,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9678 states to 9678 states and 13738 transitions. [2022-01-11 01:12:34,964 INFO L78 Accepts]: Start accepts. Automaton has 9678 states and 13738 transitions. Word has length 214 [2022-01-11 01:12:34,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:34,965 INFO L470 AbstractCegarLoop]: Abstraction has 9678 states and 13738 transitions. [2022-01-11 01:12:34,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states 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 01:12:34,965 INFO L276 IsEmpty]: Start isEmpty. Operand 9678 states and 13738 transitions. [2022-01-11 01:12:34,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-01-11 01:12:34,970 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:34,970 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:34,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 01:12:34,970 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 01:12:34,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:34,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1185270704, now seen corresponding path program 1 times [2022-01-11 01:12:34,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:34,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957525874] [2022-01-11 01:12:34,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:34,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:34,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:35,017 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 01:12:35,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:35,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957525874] [2022-01-11 01:12:35,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957525874] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:35,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:35,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:12:35,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866834321] [2022-01-11 01:12:35,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:35,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:35,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:35,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:35,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:35,019 INFO L87 Difference]: Start difference. First operand 9678 states and 13738 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states 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 01:12:35,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:35,633 INFO L93 Difference]: Finished difference Result 24387 states and 32638 transitions. [2022-01-11 01:12:35,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:35,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2022-01-11 01:12:35,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:35,653 INFO L225 Difference]: With dead ends: 24387 [2022-01-11 01:12:35,653 INFO L226 Difference]: Without dead ends: 16955 [2022-01-11 01:12:35,664 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 01:12:35,664 INFO L933 BasicCegarLoop]: 5816 mSDtfsCounter, 5338 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5338 SdHoareTripleChecker+Valid, 7307 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:12:35,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5338 Valid, 7307 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:35,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16955 states. [2022-01-11 01:12:36,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16955 to 16711. [2022-01-11 01:12:36,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16711 states, 16708 states have (on average 1.356954752214508) internal successors, (22672), 16710 states have internal predecessors, (22672), 0 states have call successors, (0), 0 states 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 01:12:36,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16711 states to 16711 states and 22672 transitions. [2022-01-11 01:12:36,355 INFO L78 Accepts]: Start accepts. Automaton has 16711 states and 22672 transitions. Word has length 214 [2022-01-11 01:12:36,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:36,356 INFO L470 AbstractCegarLoop]: Abstraction has 16711 states and 22672 transitions. [2022-01-11 01:12:36,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states 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 01:12:36,356 INFO L276 IsEmpty]: Start isEmpty. Operand 16711 states and 22672 transitions. [2022-01-11 01:12:36,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-01-11 01:12:36,363 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:36,363 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:36,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 01:12:36,363 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 01:12:36,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:36,364 INFO L85 PathProgramCache]: Analyzing trace with hash -430141136, now seen corresponding path program 1 times [2022-01-11 01:12:36,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:36,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532466298] [2022-01-11 01:12:36,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:36,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:36,392 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 01:12:36,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:36,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532466298] [2022-01-11 01:12:36,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532466298] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:36,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:36,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:12:36,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026747342] [2022-01-11 01:12:36,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:36,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:36,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:36,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:36,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:36,394 INFO L87 Difference]: Start difference. First operand 16711 states and 22672 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states 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 01:12:37,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:37,003 INFO L93 Difference]: Finished difference Result 31135 states and 41183 transitions. [2022-01-11 01:12:37,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:37,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 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 214 [2022-01-11 01:12:37,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:37,026 INFO L225 Difference]: With dead ends: 31135 [2022-01-11 01:12:37,026 INFO L226 Difference]: Without dead ends: 16592 [2022-01-11 01:12:37,040 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 01:12:37,041 INFO L933 BasicCegarLoop]: 5479 mSDtfsCounter, 1517 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 9437 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 01:12:37,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1517 Valid, 9437 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:37,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16592 states. [2022-01-11 01:12:37,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16592 to 16592. [2022-01-11 01:12:37,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16592 states, 16589 states have (on average 1.3579480378564108) internal successors, (22527), 16591 states have internal predecessors, (22527), 0 states have call successors, (0), 0 states 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 01:12:37,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16592 states to 16592 states and 22527 transitions. [2022-01-11 01:12:37,689 INFO L78 Accepts]: Start accepts. Automaton has 16592 states and 22527 transitions. Word has length 214 [2022-01-11 01:12:37,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:37,689 INFO L470 AbstractCegarLoop]: Abstraction has 16592 states and 22527 transitions. [2022-01-11 01:12:37,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states 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 01:12:37,690 INFO L276 IsEmpty]: Start isEmpty. Operand 16592 states and 22527 transitions. [2022-01-11 01:12:37,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-01-11 01:12:37,696 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:37,696 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:37,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 01:12:37,696 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 01:12:37,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:37,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1050818831, now seen corresponding path program 1 times [2022-01-11 01:12:37,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:37,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647986179] [2022-01-11 01:12:37,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:37,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:37,742 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 01:12:37,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:37,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647986179] [2022-01-11 01:12:37,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647986179] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:37,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:37,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:12:37,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256256554] [2022-01-11 01:12:37,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:37,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:37,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:37,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:37,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:37,743 INFO L87 Difference]: Start difference. First operand 16592 states and 22527 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states 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 01:12:38,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:38,874 INFO L93 Difference]: Finished difference Result 44850 states and 58657 transitions. [2022-01-11 01:12:38,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:38,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 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 215 [2022-01-11 01:12:38,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:38,917 INFO L225 Difference]: With dead ends: 44850 [2022-01-11 01:12:38,917 INFO L226 Difference]: Without dead ends: 30504 [2022-01-11 01:12:38,936 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 01:12:38,937 INFO L933 BasicCegarLoop]: 5803 mSDtfsCounter, 5337 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5337 SdHoareTripleChecker+Valid, 7292 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:12:38,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5337 Valid, 7292 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:38,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30504 states. [2022-01-11 01:12:40,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30504 to 29652. [2022-01-11 01:12:40,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29652 states, 29649 states have (on average 1.3196060575398834) internal successors, (39125), 29651 states have internal predecessors, (39125), 0 states have call successors, (0), 0 states 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 01:12:40,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29652 states to 29652 states and 39125 transitions. [2022-01-11 01:12:40,216 INFO L78 Accepts]: Start accepts. Automaton has 29652 states and 39125 transitions. Word has length 215 [2022-01-11 01:12:40,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:40,216 INFO L470 AbstractCegarLoop]: Abstraction has 29652 states and 39125 transitions. [2022-01-11 01:12:40,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states 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 01:12:40,217 INFO L276 IsEmpty]: Start isEmpty. Operand 29652 states and 39125 transitions. [2022-01-11 01:12:40,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-01-11 01:12:40,228 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:40,228 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:40,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 01:12:40,228 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 01:12:40,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:40,229 INFO L85 PathProgramCache]: Analyzing trace with hash -725545650, now seen corresponding path program 1 times [2022-01-11 01:12:40,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:40,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592863952] [2022-01-11 01:12:40,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:40,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:40,258 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 01:12:40,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:40,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592863952] [2022-01-11 01:12:40,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592863952] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:40,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:40,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:12:40,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201133264] [2022-01-11 01:12:40,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:40,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:40,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:40,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:40,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:40,260 INFO L87 Difference]: Start difference. First operand 29652 states and 39125 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states 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 01:12:41,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:41,481 INFO L93 Difference]: Finished difference Result 57011 states and 74083 transitions. [2022-01-11 01:12:41,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:41,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 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 215 [2022-01-11 01:12:41,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:41,543 INFO L225 Difference]: With dead ends: 57011 [2022-01-11 01:12:41,543 INFO L226 Difference]: Without dead ends: 29534 [2022-01-11 01:12:41,572 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 01:12:41,573 INFO L933 BasicCegarLoop]: 5478 mSDtfsCounter, 1515 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 9436 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 01:12:41,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1515 Valid, 9436 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:41,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29534 states. [2022-01-11 01:12:42,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29534 to 29534. [2022-01-11 01:12:42,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29534 states, 29531 states have (on average 1.3200365717381735) internal successors, (38982), 29533 states have internal predecessors, (38982), 0 states have call successors, (0), 0 states 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 01:12:42,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29534 states to 29534 states and 38982 transitions. [2022-01-11 01:12:42,966 INFO L78 Accepts]: Start accepts. Automaton has 29534 states and 38982 transitions. Word has length 215 [2022-01-11 01:12:42,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:42,966 INFO L470 AbstractCegarLoop]: Abstraction has 29534 states and 38982 transitions. [2022-01-11 01:12:42,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states 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 01:12:42,966 INFO L276 IsEmpty]: Start isEmpty. Operand 29534 states and 38982 transitions. [2022-01-11 01:12:42,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-01-11 01:12:42,976 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:42,976 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:42,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 01:12:42,977 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:12:42,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:42,977 INFO L85 PathProgramCache]: Analyzing trace with hash -546912223, now seen corresponding path program 1 times [2022-01-11 01:12:42,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:42,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272599099] [2022-01-11 01:12:42,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:42,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:43,028 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 01:12:43,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:43,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272599099] [2022-01-11 01:12:43,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272599099] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:43,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:43,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:12:43,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190044394] [2022-01-11 01:12:43,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:43,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:43,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:43,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:43,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:43,030 INFO L87 Difference]: Start difference. First operand 29534 states and 38982 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states 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 01:12:45,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:45,463 INFO L93 Difference]: Finished difference Result 83091 states and 107270 transitions. [2022-01-11 01:12:45,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:45,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 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 216 [2022-01-11 01:12:45,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:45,542 INFO L225 Difference]: With dead ends: 83091 [2022-01-11 01:12:45,542 INFO L226 Difference]: Without dead ends: 55803 [2022-01-11 01:12:45,575 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 01:12:45,576 INFO L933 BasicCegarLoop]: 5830 mSDtfsCounter, 5337 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5337 SdHoareTripleChecker+Valid, 7317 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:12:45,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5337 Valid, 7317 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:45,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55803 states. [2022-01-11 01:12:48,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55803 to 54327. [2022-01-11 01:12:48,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54327 states, 54324 states have (on average 1.297437596642368) internal successors, (70482), 54326 states have internal predecessors, (70482), 0 states have call successors, (0), 0 states 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 01:12:48,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54327 states to 54327 states and 70482 transitions. [2022-01-11 01:12:48,634 INFO L78 Accepts]: Start accepts. Automaton has 54327 states and 70482 transitions. Word has length 216 [2022-01-11 01:12:48,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:48,634 INFO L470 AbstractCegarLoop]: Abstraction has 54327 states and 70482 transitions. [2022-01-11 01:12:48,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states 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 01:12:48,634 INFO L276 IsEmpty]: Start isEmpty. Operand 54327 states and 70482 transitions. [2022-01-11 01:12:48,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-01-11 01:12:48,654 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:48,654 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:48,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 01:12:48,654 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:12:48,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:48,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1127454402, now seen corresponding path program 1 times [2022-01-11 01:12:48,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:48,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640664963] [2022-01-11 01:12:48,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:48,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:48,687 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 01:12:48,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:48,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640664963] [2022-01-11 01:12:48,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640664963] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:48,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:48,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:12:48,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420197678] [2022-01-11 01:12:48,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:48,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:48,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:48,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:48,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:48,688 INFO L87 Difference]: Start difference. First operand 54327 states and 70482 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states 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 01:12:51,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:51,450 INFO L93 Difference]: Finished difference Result 106355 states and 136791 transitions. [2022-01-11 01:12:51,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:51,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 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 216 [2022-01-11 01:12:51,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:51,532 INFO L225 Difference]: With dead ends: 106355 [2022-01-11 01:12:51,532 INFO L226 Difference]: Without dead ends: 54210 [2022-01-11 01:12:51,572 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 01:12:51,572 INFO L933 BasicCegarLoop]: 5477 mSDtfsCounter, 1513 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 9435 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 01:12:51,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1513 Valid, 9435 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:51,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54210 states. [2022-01-11 01:12:54,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54210 to 54210. [2022-01-11 01:12:54,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54210 states, 54207 states have (on average 1.2976368365709225) internal successors, (70341), 54209 states have internal predecessors, (70341), 0 states have call successors, (0), 0 states 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 01:12:54,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54210 states to 54210 states and 70341 transitions. [2022-01-11 01:12:54,377 INFO L78 Accepts]: Start accepts. Automaton has 54210 states and 70341 transitions. Word has length 216 [2022-01-11 01:12:54,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:12:54,378 INFO L470 AbstractCegarLoop]: Abstraction has 54210 states and 70341 transitions. [2022-01-11 01:12:54,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states 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 01:12:54,378 INFO L276 IsEmpty]: Start isEmpty. Operand 54210 states and 70341 transitions. [2022-01-11 01:12:54,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-01-11 01:12:54,398 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:12:54,398 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:54,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 01:12:54,398 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:12:54,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:12:54,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1168246236, now seen corresponding path program 1 times [2022-01-11 01:12:54,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:12:54,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622835019] [2022-01-11 01:12:54,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:12:54,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:12:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:12:54,447 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 01:12:54,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:12:54,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622835019] [2022-01-11 01:12:54,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622835019] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:12:54,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:12:54,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:12:54,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391387080] [2022-01-11 01:12:54,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:12:54,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:12:54,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:12:54,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:12:54,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:54,448 INFO L87 Difference]: Start difference. First operand 54210 states and 70341 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states 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 01:12:59,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:12:59,432 INFO L93 Difference]: Finished difference Result 155702 states and 199507 transitions. [2022-01-11 01:12:59,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:12:59,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 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 217 [2022-01-11 01:12:59,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:12:59,608 INFO L225 Difference]: With dead ends: 155702 [2022-01-11 01:12:59,608 INFO L226 Difference]: Without dead ends: 103738 [2022-01-11 01:12:59,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:12:59,650 INFO L933 BasicCegarLoop]: 5886 mSDtfsCounter, 5337 mSDsluCounter, 1485 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5337 SdHoareTripleChecker+Valid, 7371 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:12:59,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5337 Valid, 7371 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:12:59,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103738 states. [2022-01-11 01:13:04,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103738 to 101238. [2022-01-11 01:13:05,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101238 states, 101235 states have (on average 1.2846051266854348) internal successors, (130047), 101237 states have internal predecessors, (130047), 0 states have call successors, (0), 0 states 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 01:13:05,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101238 states to 101238 states and 130047 transitions. [2022-01-11 01:13:05,170 INFO L78 Accepts]: Start accepts. Automaton has 101238 states and 130047 transitions. Word has length 217 [2022-01-11 01:13:05,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:13:05,170 INFO L470 AbstractCegarLoop]: Abstraction has 101238 states and 130047 transitions. [2022-01-11 01:13:05,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states 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 01:13:05,170 INFO L276 IsEmpty]: Start isEmpty. Operand 101238 states and 130047 transitions. [2022-01-11 01:13:05,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-01-11 01:13:05,391 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:13:05,391 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:05,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-11 01:13:05,392 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:13:05,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:13:05,392 INFO L85 PathProgramCache]: Analyzing trace with hash -441047551, now seen corresponding path program 1 times [2022-01-11 01:13:05,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:13:05,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884826947] [2022-01-11 01:13:05,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:13:05,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:13:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:13:05,476 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 01:13:05,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:13:05,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884826947] [2022-01-11 01:13:05,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884826947] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:13:05,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:13:05,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:13:05,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868304622] [2022-01-11 01:13:05,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:13:05,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:13:05,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:13:05,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:13:05,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:13:05,477 INFO L87 Difference]: Start difference. First operand 101238 states and 130047 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states 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 01:13:11,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:13:11,066 INFO L93 Difference]: Finished difference Result 200171 states and 255915 transitions. [2022-01-11 01:13:11,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:13:11,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 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 217 [2022-01-11 01:13:11,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:13:11,251 INFO L225 Difference]: With dead ends: 200171 [2022-01-11 01:13:11,252 INFO L226 Difference]: Without dead ends: 101122 [2022-01-11 01:13:11,336 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 01:13:11,337 INFO L933 BasicCegarLoop]: 5476 mSDtfsCounter, 1511 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 9434 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 01:13:11,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1511 Valid, 9434 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:13:11,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101122 states.