/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_LAZY.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 18:46:56,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 18:46:56,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 18:46:56,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 18:46:56,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 18:46:56,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 18:46:56,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 18:46:56,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 18:46:56,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 18:46:56,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 18:46:56,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 18:46:56,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 18:46:56,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 18:46:56,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 18:46:56,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 18:46:56,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 18:46:56,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 18:46:56,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 18:46:56,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 18:46:56,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 18:46:56,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 18:46:56,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 18:46:56,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 18:46:56,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 18:46:56,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 18:46:56,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 18:46:56,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 18:46:56,425 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 18:46:56,426 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 18:46:56,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 18:46:56,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 18:46:56,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 18:46:56,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 18:46:56,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 18:46:56,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 18:46:56,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 18:46:56,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 18:46:56,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 18:46:56,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 18:46:56,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 18:46:56,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 18:46:56,434 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 18:46:56,463 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 18:46:56,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 18:46:56,464 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 18:46:56,464 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 18:46:56,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 18:46:56,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 18:46:56,465 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 18:46:56,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 18:46:56,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 18:46:56,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 18:46:56,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 18:46:56,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 18:46:56,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 18:46:56,467 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 18:46:56,467 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 18:46:56,467 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 18:46:56,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 18:46:56,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 18:46:56,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 18:46:56,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 18:46:56,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 18:46:56,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:46:56,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 18:46:56,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 18:46:56,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 18:46:56,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 18:46:56,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 18:46:56,468 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 18:46:56,469 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 18:46:56,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 18:46:56,469 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 18:46:56,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 18:46:56,470 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 18:46:56,470 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 18:46:56,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 18:46:56,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 18:46:56,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 18:46:56,729 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 18:46:56,730 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 18:46:56,731 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-01-10 18:46:56,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/896b39440/34f08d22f0054c4093cf76c22802a07b/FLAG59f943818 [2022-01-10 18:46:57,226 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 18:46:57,226 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-01-10 18:46:57,237 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/896b39440/34f08d22f0054c4093cf76c22802a07b/FLAG59f943818 [2022-01-10 18:46:57,260 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/896b39440/34f08d22f0054c4093cf76c22802a07b [2022-01-10 18:46:57,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 18:46:57,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 18:46:57,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 18:46:57,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 18:46:57,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 18:46:57,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:46:57" (1/1) ... [2022-01-10 18:46:57,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4830ddd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:57, skipping insertion in model container [2022-01-10 18:46:57,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:46:57" (1/1) ... [2022-01-10 18:46:57,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 18:46:57,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:46:57,718 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13772,13785] [2022-01-10 18:46:57,737 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14419,14432] [2022-01-10 18:46:57,757 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15695,15708] [2022-01-10 18:46:57,773 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16671,16684] [2022-01-10 18:46:57,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25142,25155] [2022-01-10 18:46:57,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:46:57,932 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 18:46:58,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13772,13785] [2022-01-10 18:46:58,022 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14419,14432] [2022-01-10 18:46:58,030 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15695,15708] [2022-01-10 18:46:58,039 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16671,16684] [2022-01-10 18:46:58,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25142,25155] [2022-01-10 18:46:58,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:46:58,149 INFO L208 MainTranslator]: Completed translation [2022-01-10 18:46:58,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:58 WrapperNode [2022-01-10 18:46:58,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 18:46:58,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 18:46:58,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 18:46:58,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 18:46:58,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:58" (1/1) ... [2022-01-10 18:46:58,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:58" (1/1) ... [2022-01-10 18:46:58,249 INFO L137 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1524 [2022-01-10 18:46:58,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 18:46:58,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 18:46:58,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 18:46:58,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 18:46:58,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:58" (1/1) ... [2022-01-10 18:46:58,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:58" (1/1) ... [2022-01-10 18:46:58,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:58" (1/1) ... [2022-01-10 18:46:58,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:58" (1/1) ... [2022-01-10 18:46:58,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:58" (1/1) ... [2022-01-10 18:46:58,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:58" (1/1) ... [2022-01-10 18:46:58,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:58" (1/1) ... [2022-01-10 18:46:58,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 18:46:58,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 18:46:58,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 18:46:58,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 18:46:58,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:58" (1/1) ... [2022-01-10 18:46:58,346 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:46:58,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:46:58,371 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) [2022-01-10 18:46:58,381 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 [2022-01-10 18:46:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 18:46:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 18:46:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 18:46:58,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 18:46:58,597 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 18:46:58,599 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 18:46:59,650 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 18:46:59,662 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 18:46:59,662 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 18:46:59,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:46:59 BoogieIcfgContainer [2022-01-10 18:46:59,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 18:46:59,670 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 18:46:59,670 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 18:46:59,671 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 18:46:59,674 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:46:59" (1/1) ... [2022-01-10 18:47:00,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:47:00 BasicIcfg [2022-01-10 18:47:00,355 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 18:47:00,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 18:47:00,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 18:47:00,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 18:47:00,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:46:57" (1/4) ... [2022-01-10 18:47:00,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f86db7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:47:00, skipping insertion in model container [2022-01-10 18:47:00,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:58" (2/4) ... [2022-01-10 18:47:00,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f86db7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:47:00, skipping insertion in model container [2022-01-10 18:47:00,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:46:59" (3/4) ... [2022-01-10 18:47:00,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f86db7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:47:00, skipping insertion in model container [2022-01-10 18:47:00,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:47:00" (4/4) ... [2022-01-10 18:47:00,362 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.cTransformedIcfg [2022-01-10 18:47:00,366 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 18:47:00,366 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 18:47:00,407 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 18:47:00,412 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 [2022-01-10 18:47:00,412 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 18:47:00,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 377 states, 371 states have (on average 1.8328840970350404) internal successors, (680), 376 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:00,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-01-10 18:47:00,455 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:00,456 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, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:00,457 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:00,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:00,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1209514189, now seen corresponding path program 1 times [2022-01-10 18:47:00,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:00,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558058738] [2022-01-10 18:47:00,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:00,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:01,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:01,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:01,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558058738] [2022-01-10 18:47:01,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558058738] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:01,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:01,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:47:01,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27288845] [2022-01-10 18:47:01,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:01,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:47:01,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:01,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:47:01,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:47:01,141 INFO L87 Difference]: Start difference. First operand has 377 states, 371 states have (on average 1.8328840970350404) internal successors, (680), 376 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:01,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:47:01,339 INFO L93 Difference]: Finished difference Result 1088 states and 1967 transitions. [2022-01-10 18:47:01,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:47:01,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2022-01-10 18:47:01,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:47:01,360 INFO L225 Difference]: With dead ends: 1088 [2022-01-10 18:47:01,360 INFO L226 Difference]: Without dead ends: 730 [2022-01-10 18:47:01,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:47:01,371 INFO L933 BasicCegarLoop]: 1194 mSDtfsCounter, 1383 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 1827 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:47:01,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1383 Valid, 1827 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:47:01,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2022-01-10 18:47:01,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 704. [2022-01-10 18:47:01,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 699 states have (on average 1.4377682403433476) internal successors, (1005), 703 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:01,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1005 transitions. [2022-01-10 18:47:01,473 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1005 transitions. Word has length 138 [2022-01-10 18:47:01,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:47:01,474 INFO L470 AbstractCegarLoop]: Abstraction has 704 states and 1005 transitions. [2022-01-10 18:47:01,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:01,474 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1005 transitions. [2022-01-10 18:47:01,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-01-10 18:47:01,482 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:01,482 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:01,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 18:47:01,483 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:01,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:01,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1419655252, now seen corresponding path program 1 times [2022-01-10 18:47:01,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:01,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257630629] [2022-01-10 18:47:01,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:01,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:01,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:01,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:01,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257630629] [2022-01-10 18:47:01,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257630629] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:01,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:01,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:47:01,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504669169] [2022-01-10 18:47:01,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:01,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:47:01,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:01,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:47:01,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:47:01,652 INFO L87 Difference]: Start difference. First operand 704 states and 1005 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:01,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:47:01,711 INFO L93 Difference]: Finished difference Result 2074 states and 2951 transitions. [2022-01-10 18:47:01,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:47:01,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2022-01-10 18:47:01,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:47:01,717 INFO L225 Difference]: With dead ends: 2074 [2022-01-10 18:47:01,717 INFO L226 Difference]: Without dead ends: 1398 [2022-01-10 18:47:01,720 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 [2022-01-10 18:47:01,721 INFO L933 BasicCegarLoop]: 1054 mSDtfsCounter, 523 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 1579 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:47:01,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 1579 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:47:01,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1398 states. [2022-01-10 18:47:01,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1398 to 706. [2022-01-10 18:47:01,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 701 states have (on average 1.4365192582025677) internal successors, (1007), 705 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:01,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 1007 transitions. [2022-01-10 18:47:01,769 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 1007 transitions. Word has length 139 [2022-01-10 18:47:01,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:47:01,774 INFO L470 AbstractCegarLoop]: Abstraction has 706 states and 1007 transitions. [2022-01-10 18:47:01,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:01,775 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 1007 transitions. [2022-01-10 18:47:01,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-01-10 18:47:01,777 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:01,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:01,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 18:47:01,777 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:01,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:01,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1385139528, now seen corresponding path program 1 times [2022-01-10 18:47:01,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:01,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469033737] [2022-01-10 18:47:01,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:01,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:02,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:02,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:02,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469033737] [2022-01-10 18:47:02,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469033737] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:02,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:02,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:47:02,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959242294] [2022-01-10 18:47:02,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:02,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:47:02,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:02,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:47:02,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:47:02,028 INFO L87 Difference]: Start difference. First operand 706 states and 1007 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:02,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:47:02,279 INFO L93 Difference]: Finished difference Result 2741 states and 3892 transitions. [2022-01-10 18:47:02,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:47:02,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2022-01-10 18:47:02,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:47:02,288 INFO L225 Difference]: With dead ends: 2741 [2022-01-10 18:47:02,289 INFO L226 Difference]: Without dead ends: 2047 [2022-01-10 18:47:02,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:47:02,293 INFO L933 BasicCegarLoop]: 1281 mSDtfsCounter, 1570 mSDsluCounter, 1457 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:47:02,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1570 Valid, 2738 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:47:02,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2022-01-10 18:47:02,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 1349. [2022-01-10 18:47:02,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 1344 states have (on average 1.4196428571428572) internal successors, (1908), 1348 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:02,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 1908 transitions. [2022-01-10 18:47:02,381 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 1908 transitions. Word has length 140 [2022-01-10 18:47:02,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:47:02,382 INFO L470 AbstractCegarLoop]: Abstraction has 1349 states and 1908 transitions. [2022-01-10 18:47:02,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:02,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 1908 transitions. [2022-01-10 18:47:02,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-01-10 18:47:02,384 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:02,385 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:02,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 18:47:02,385 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:02,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:02,386 INFO L85 PathProgramCache]: Analyzing trace with hash 468311212, now seen corresponding path program 1 times [2022-01-10 18:47:02,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:02,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071633871] [2022-01-10 18:47:02,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:02,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:02,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:02,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:02,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071633871] [2022-01-10 18:47:02,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071633871] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:02,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:02,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:47:02,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634845220] [2022-01-10 18:47:02,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:02,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:47:02,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:02,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:47:02,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:47:02,538 INFO L87 Difference]: Start difference. First operand 1349 states and 1908 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:02,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:47:02,644 INFO L93 Difference]: Finished difference Result 2365 states and 3335 transitions. [2022-01-10 18:47:02,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:47:02,645 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2022-01-10 18:47:02,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:47:02,649 INFO L225 Difference]: With dead ends: 2365 [2022-01-10 18:47:02,649 INFO L226 Difference]: Without dead ends: 1032 [2022-01-10 18:47:02,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:47:02,651 INFO L933 BasicCegarLoop]: 578 mSDtfsCounter, 69 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:47:02,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 1637 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:47:02,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2022-01-10 18:47:02,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 1032. [2022-01-10 18:47:02,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 1027 states have (on average 1.4128529698149952) internal successors, (1451), 1031 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:02,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1451 transitions. [2022-01-10 18:47:02,708 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1451 transitions. Word has length 140 [2022-01-10 18:47:02,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:47:02,709 INFO L470 AbstractCegarLoop]: Abstraction has 1032 states and 1451 transitions. [2022-01-10 18:47:02,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:02,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1451 transitions. [2022-01-10 18:47:02,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-01-10 18:47:02,711 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:02,711 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:02,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 18:47:02,711 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:02,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:02,712 INFO L85 PathProgramCache]: Analyzing trace with hash -384888981, now seen corresponding path program 1 times [2022-01-10 18:47:02,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:02,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103953278] [2022-01-10 18:47:02,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:02,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:02,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:02,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:02,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103953278] [2022-01-10 18:47:02,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103953278] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:02,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:02,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:47:02,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945346086] [2022-01-10 18:47:02,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:02,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:47:02,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:02,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:47:02,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:47:02,810 INFO L87 Difference]: Start difference. First operand 1032 states and 1451 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:02,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:47:02,892 INFO L93 Difference]: Finished difference Result 2067 states and 2886 transitions. [2022-01-10 18:47:02,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:47:02,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2022-01-10 18:47:02,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:47:02,899 INFO L225 Difference]: With dead ends: 2067 [2022-01-10 18:47:02,899 INFO L226 Difference]: Without dead ends: 1381 [2022-01-10 18:47:02,900 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 [2022-01-10 18:47:02,901 INFO L933 BasicCegarLoop]: 597 mSDtfsCounter, 516 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:47:02,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [516 Valid, 1112 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:47:02,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-01-10 18:47:02,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1032. [2022-01-10 18:47:02,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 1027 states have (on average 1.4118792599805259) internal successors, (1450), 1031 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:02,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1450 transitions. [2022-01-10 18:47:02,965 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1450 transitions. Word has length 144 [2022-01-10 18:47:02,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:47:02,966 INFO L470 AbstractCegarLoop]: Abstraction has 1032 states and 1450 transitions. [2022-01-10 18:47:02,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:02,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1450 transitions. [2022-01-10 18:47:02,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-10 18:47:02,968 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:02,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:02,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 18:47:02,968 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:02,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:02,969 INFO L85 PathProgramCache]: Analyzing trace with hash -358234802, now seen corresponding path program 1 times [2022-01-10 18:47:02,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:02,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809459424] [2022-01-10 18:47:02,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:02,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:03,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:03,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:03,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809459424] [2022-01-10 18:47:03,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809459424] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:03,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:03,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:47:03,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754780446] [2022-01-10 18:47:03,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:03,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:47:03,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:03,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:47:03,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:47:03,108 INFO L87 Difference]: Start difference. First operand 1032 states and 1450 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:03,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:47:03,263 INFO L93 Difference]: Finished difference Result 2706 states and 3821 transitions. [2022-01-10 18:47:03,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:47:03,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2022-01-10 18:47:03,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:47:03,272 INFO L225 Difference]: With dead ends: 2706 [2022-01-10 18:47:03,272 INFO L226 Difference]: Without dead ends: 1931 [2022-01-10 18:47:03,275 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 [2022-01-10 18:47:03,279 INFO L933 BasicCegarLoop]: 986 mSDtfsCounter, 452 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 1465 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:47:03,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 1465 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:47:03,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1931 states. [2022-01-10 18:47:03,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1931 to 1911. [2022-01-10 18:47:03,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1911 states, 1906 states have (on average 1.3992654774396642) internal successors, (2667), 1910 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:03,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2667 transitions. [2022-01-10 18:47:03,393 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2667 transitions. Word has length 145 [2022-01-10 18:47:03,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:47:03,394 INFO L470 AbstractCegarLoop]: Abstraction has 1911 states and 2667 transitions. [2022-01-10 18:47:03,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:03,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2667 transitions. [2022-01-10 18:47:03,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-10 18:47:03,397 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:03,398 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:03,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 18:47:03,401 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:03,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:03,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1252169713, now seen corresponding path program 1 times [2022-01-10 18:47:03,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:03,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478796535] [2022-01-10 18:47:03,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:03,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:03,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:03,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:03,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478796535] [2022-01-10 18:47:03,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478796535] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:03,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:03,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:47:03,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061485582] [2022-01-10 18:47:03,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:03,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:47:03,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:03,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:47:03,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:47:03,507 INFO L87 Difference]: Start difference. First operand 1911 states and 2667 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:03,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:47:03,717 INFO L93 Difference]: Finished difference Result 4754 states and 6621 transitions. [2022-01-10 18:47:03,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:47:03,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2022-01-10 18:47:03,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:47:03,727 INFO L225 Difference]: With dead ends: 4754 [2022-01-10 18:47:03,728 INFO L226 Difference]: Without dead ends: 2926 [2022-01-10 18:47:03,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:47:03,731 INFO L933 BasicCegarLoop]: 607 mSDtfsCounter, 1451 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1451 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:47:03,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1451 Valid, 1108 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:47:03,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2022-01-10 18:47:03,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 1916. [2022-01-10 18:47:03,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1916 states, 1911 states have (on average 1.3966509680795396) internal successors, (2669), 1915 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:03,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1916 states to 1916 states and 2669 transitions. [2022-01-10 18:47:03,857 INFO L78 Accepts]: Start accepts. Automaton has 1916 states and 2669 transitions. Word has length 145 [2022-01-10 18:47:03,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:47:03,857 INFO L470 AbstractCegarLoop]: Abstraction has 1916 states and 2669 transitions. [2022-01-10 18:47:03,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:03,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1916 states and 2669 transitions. [2022-01-10 18:47:03,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-10 18:47:03,861 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:03,861 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:03,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 18:47:03,862 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:03,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:03,862 INFO L85 PathProgramCache]: Analyzing trace with hash -452368440, now seen corresponding path program 1 times [2022-01-10 18:47:03,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:03,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940989248] [2022-01-10 18:47:03,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:03,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:03,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:04,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:04,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:04,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940989248] [2022-01-10 18:47:04,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940989248] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:04,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:04,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:47:04,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612793053] [2022-01-10 18:47:04,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:04,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:47:04,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:04,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:47:04,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:47:04,009 INFO L87 Difference]: Start difference. First operand 1916 states and 2669 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:04,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:47:04,365 INFO L93 Difference]: Finished difference Result 5513 states and 7661 transitions. [2022-01-10 18:47:04,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:47:04,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2022-01-10 18:47:04,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:47:04,380 INFO L225 Difference]: With dead ends: 5513 [2022-01-10 18:47:04,380 INFO L226 Difference]: Without dead ends: 3665 [2022-01-10 18:47:04,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:47:04,385 INFO L933 BasicCegarLoop]: 918 mSDtfsCounter, 1047 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:47:04,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1047 Valid, 1403 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:47:04,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3665 states. [2022-01-10 18:47:04,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3665 to 3628. [2022-01-10 18:47:04,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3628 states, 3623 states have (on average 1.3850400220811483) internal successors, (5018), 3627 states have internal predecessors, (5018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:04,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3628 states to 3628 states and 5018 transitions. [2022-01-10 18:47:04,689 INFO L78 Accepts]: Start accepts. Automaton has 3628 states and 5018 transitions. Word has length 145 [2022-01-10 18:47:04,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:47:04,689 INFO L470 AbstractCegarLoop]: Abstraction has 3628 states and 5018 transitions. [2022-01-10 18:47:04,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:04,690 INFO L276 IsEmpty]: Start isEmpty. Operand 3628 states and 5018 transitions. [2022-01-10 18:47:04,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-10 18:47:04,695 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:04,695 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:04,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 18:47:04,695 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:04,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:04,696 INFO L85 PathProgramCache]: Analyzing trace with hash -2062416176, now seen corresponding path program 1 times [2022-01-10 18:47:04,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:04,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038466210] [2022-01-10 18:47:04,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:04,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:04,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:04,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:04,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038466210] [2022-01-10 18:47:04,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038466210] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:04,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:04,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:47:04,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964552738] [2022-01-10 18:47:04,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:04,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:47:04,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:04,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:47:04,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:47:04,805 INFO L87 Difference]: Start difference. First operand 3628 states and 5018 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:05,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:47:05,062 INFO L93 Difference]: Finished difference Result 5282 states and 7326 transitions. [2022-01-10 18:47:05,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:47:05,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 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 147 [2022-01-10 18:47:05,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:47:05,072 INFO L225 Difference]: With dead ends: 5282 [2022-01-10 18:47:05,073 INFO L226 Difference]: Without dead ends: 3028 [2022-01-10 18:47:05,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:47:05,077 INFO L933 BasicCegarLoop]: 564 mSDtfsCounter, 47 mSDsluCounter, 1054 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1618 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:47:05,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 1618 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:47:05,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3028 states. [2022-01-10 18:47:05,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3028 to 3028. [2022-01-10 18:47:05,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3028 states, 3023 states have (on average 1.3847171683757857) internal successors, (4186), 3027 states have internal predecessors, (4186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:05,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3028 states to 3028 states and 4186 transitions. [2022-01-10 18:47:05,309 INFO L78 Accepts]: Start accepts. Automaton has 3028 states and 4186 transitions. Word has length 147 [2022-01-10 18:47:05,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:47:05,309 INFO L470 AbstractCegarLoop]: Abstraction has 3028 states and 4186 transitions. [2022-01-10 18:47:05,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:05,309 INFO L276 IsEmpty]: Start isEmpty. Operand 3028 states and 4186 transitions. [2022-01-10 18:47:05,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-10 18:47:05,313 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:05,314 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:05,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 18:47:05,314 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:05,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:05,314 INFO L85 PathProgramCache]: Analyzing trace with hash 647294381, now seen corresponding path program 1 times [2022-01-10 18:47:05,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:05,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448659233] [2022-01-10 18:47:05,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:05,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:05,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:05,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:05,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:05,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448659233] [2022-01-10 18:47:05,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448659233] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:05,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:05,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:47:05,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432266717] [2022-01-10 18:47:05,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:05,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:47:05,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:05,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:47:05,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:47:05,466 INFO L87 Difference]: Start difference. First operand 3028 states and 4186 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:05,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:47:05,962 INFO L93 Difference]: Finished difference Result 7974 states and 10978 transitions. [2022-01-10 18:47:05,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:47:05,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 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 147 [2022-01-10 18:47:05,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:47:05,981 INFO L225 Difference]: With dead ends: 7974 [2022-01-10 18:47:05,981 INFO L226 Difference]: Without dead ends: 4990 [2022-01-10 18:47:05,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:47:05,987 INFO L933 BasicCegarLoop]: 1236 mSDtfsCounter, 1672 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1672 SdHoareTripleChecker+Valid, 2193 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:47:05,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1672 Valid, 2193 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:47:05,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4990 states. [2022-01-10 18:47:06,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4990 to 3177. [2022-01-10 18:47:06,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3177 states, 3172 states have (on average 1.3742118537200505) internal successors, (4359), 3176 states have internal predecessors, (4359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:06,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3177 states to 3177 states and 4359 transitions. [2022-01-10 18:47:06,331 INFO L78 Accepts]: Start accepts. Automaton has 3177 states and 4359 transitions. Word has length 147 [2022-01-10 18:47:06,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:47:06,332 INFO L470 AbstractCegarLoop]: Abstraction has 3177 states and 4359 transitions. [2022-01-10 18:47:06,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:06,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3177 states and 4359 transitions. [2022-01-10 18:47:06,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-10 18:47:06,337 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:06,337 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:06,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 18:47:06,337 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:06,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:06,338 INFO L85 PathProgramCache]: Analyzing trace with hash -2004579639, now seen corresponding path program 1 times [2022-01-10 18:47:06,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:06,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961557287] [2022-01-10 18:47:06,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:06,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:06,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:06,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:06,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961557287] [2022-01-10 18:47:06,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961557287] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:06,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:06,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:47:06,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223669255] [2022-01-10 18:47:06,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:06,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:47:06,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:06,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:47:06,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:47:06,441 INFO L87 Difference]: Start difference. First operand 3177 states and 4359 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:06,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:47:06,673 INFO L93 Difference]: Finished difference Result 5723 states and 7838 transitions. [2022-01-10 18:47:06,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:47:06,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 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 147 [2022-01-10 18:47:06,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:47:06,682 INFO L225 Difference]: With dead ends: 5723 [2022-01-10 18:47:06,682 INFO L226 Difference]: Without dead ends: 2582 [2022-01-10 18:47:06,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:47:06,686 INFO L933 BasicCegarLoop]: 562 mSDtfsCounter, 47 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1613 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:47:06,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 1613 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:47:06,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2582 states. [2022-01-10 18:47:06,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2582 to 2582. [2022-01-10 18:47:06,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2582 states, 2577 states have (on average 1.369033760186263) internal successors, (3528), 2581 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:06,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2582 states to 2582 states and 3528 transitions. [2022-01-10 18:47:06,869 INFO L78 Accepts]: Start accepts. Automaton has 2582 states and 3528 transitions. Word has length 147 [2022-01-10 18:47:06,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:47:06,869 INFO L470 AbstractCegarLoop]: Abstraction has 2582 states and 3528 transitions. [2022-01-10 18:47:06,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:06,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2582 states and 3528 transitions. [2022-01-10 18:47:06,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-10 18:47:06,875 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:06,875 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:06,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 18:47:06,875 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:06,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:06,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1425110002, now seen corresponding path program 1 times [2022-01-10 18:47:06,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:06,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446336569] [2022-01-10 18:47:06,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:06,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:06,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:06,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:06,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446336569] [2022-01-10 18:47:06,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446336569] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:06,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:06,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:47:06,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865426197] [2022-01-10 18:47:06,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:06,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:47:06,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:06,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:47:06,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:47:06,958 INFO L87 Difference]: Start difference. First operand 2582 states and 3528 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:07,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:47:07,229 INFO L93 Difference]: Finished difference Result 5086 states and 6949 transitions. [2022-01-10 18:47:07,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:47:07,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2022-01-10 18:47:07,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:47:07,237 INFO L225 Difference]: With dead ends: 5086 [2022-01-10 18:47:07,237 INFO L226 Difference]: Without dead ends: 3567 [2022-01-10 18:47:07,240 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 [2022-01-10 18:47:07,240 INFO L933 BasicCegarLoop]: 927 mSDtfsCounter, 502 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:47:07,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [502 Valid, 1438 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:47:07,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3567 states. [2022-01-10 18:47:07,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3567 to 2582. [2022-01-10 18:47:07,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2582 states, 2577 states have (on average 1.367869615832363) internal successors, (3525), 2581 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:07,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2582 states to 2582 states and 3525 transitions. [2022-01-10 18:47:07,426 INFO L78 Accepts]: Start accepts. Automaton has 2582 states and 3525 transitions. Word has length 154 [2022-01-10 18:47:07,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:47:07,426 INFO L470 AbstractCegarLoop]: Abstraction has 2582 states and 3525 transitions. [2022-01-10 18:47:07,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:07,426 INFO L276 IsEmpty]: Start isEmpty. Operand 2582 states and 3525 transitions. [2022-01-10 18:47:07,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-01-10 18:47:07,430 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:07,430 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:07,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 18:47:07,430 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:07,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:07,431 INFO L85 PathProgramCache]: Analyzing trace with hash 864530204, now seen corresponding path program 1 times [2022-01-10 18:47:07,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:07,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937216160] [2022-01-10 18:47:07,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:07,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:07,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:07,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:07,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937216160] [2022-01-10 18:47:07,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937216160] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:07,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:07,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:47:07,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003568772] [2022-01-10 18:47:07,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:07,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:47:07,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:07,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:47:07,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:47:07,568 INFO L87 Difference]: Start difference. First operand 2582 states and 3525 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:07,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:47:07,888 INFO L93 Difference]: Finished difference Result 5968 states and 8228 transitions. [2022-01-10 18:47:07,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:47:07,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2022-01-10 18:47:07,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:47:07,899 INFO L225 Difference]: With dead ends: 5968 [2022-01-10 18:47:07,899 INFO L226 Difference]: Without dead ends: 3993 [2022-01-10 18:47:07,902 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 [2022-01-10 18:47:07,903 INFO L933 BasicCegarLoop]: 979 mSDtfsCounter, 442 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:47:07,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [442 Valid, 1460 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:47:07,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3993 states. [2022-01-10 18:47:08,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3993 to 3959. [2022-01-10 18:47:08,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3959 states, 3954 states have (on average 1.357106727364694) internal successors, (5366), 3958 states have internal predecessors, (5366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:08,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3959 states to 3959 states and 5366 transitions. [2022-01-10 18:47:08,247 INFO L78 Accepts]: Start accepts. Automaton has 3959 states and 5366 transitions. Word has length 155 [2022-01-10 18:47:08,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:47:08,248 INFO L470 AbstractCegarLoop]: Abstraction has 3959 states and 5366 transitions. [2022-01-10 18:47:08,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:08,248 INFO L276 IsEmpty]: Start isEmpty. Operand 3959 states and 5366 transitions. [2022-01-10 18:47:08,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-01-10 18:47:08,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:08,253 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:08,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 18:47:08,254 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:08,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:08,254 INFO L85 PathProgramCache]: Analyzing trace with hash 2045369597, now seen corresponding path program 1 times [2022-01-10 18:47:08,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:08,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879539407] [2022-01-10 18:47:08,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:08,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:08,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:08,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:08,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879539407] [2022-01-10 18:47:08,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879539407] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:08,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:08,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:47:08,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101533894] [2022-01-10 18:47:08,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:08,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:47:08,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:08,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:47:08,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:47:08,406 INFO L87 Difference]: Start difference. First operand 3959 states and 5366 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:08,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:47:08,870 INFO L93 Difference]: Finished difference Result 9160 states and 12500 transitions. [2022-01-10 18:47:08,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:47:08,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2022-01-10 18:47:08,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:47:08,881 INFO L225 Difference]: With dead ends: 9160 [2022-01-10 18:47:08,881 INFO L226 Difference]: Without dead ends: 6078 [2022-01-10 18:47:08,884 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 [2022-01-10 18:47:08,884 INFO L933 BasicCegarLoop]: 986 mSDtfsCounter, 443 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:47:08,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 1463 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:47:08,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6078 states. [2022-01-10 18:47:09,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6078 to 6044. [2022-01-10 18:47:09,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6044 states, 6039 states have (on average 1.3401225368438483) internal successors, (8093), 6043 states have internal predecessors, (8093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:09,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6044 states to 6044 states and 8093 transitions. [2022-01-10 18:47:09,318 INFO L78 Accepts]: Start accepts. Automaton has 6044 states and 8093 transitions. Word has length 155 [2022-01-10 18:47:09,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:47:09,318 INFO L470 AbstractCegarLoop]: Abstraction has 6044 states and 8093 transitions. [2022-01-10 18:47:09,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:09,318 INFO L276 IsEmpty]: Start isEmpty. Operand 6044 states and 8093 transitions. [2022-01-10 18:47:09,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-01-10 18:47:09,326 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:09,326 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:09,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 18:47:09,326 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:09,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:09,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1376866502, now seen corresponding path program 1 times [2022-01-10 18:47:09,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:09,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233582628] [2022-01-10 18:47:09,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:09,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:09,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:09,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:09,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233582628] [2022-01-10 18:47:09,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233582628] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:09,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:09,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:47:09,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202454146] [2022-01-10 18:47:09,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:09,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:47:09,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:09,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:47:09,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:47:09,473 INFO L87 Difference]: Start difference. First operand 6044 states and 8093 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:10,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:47:10,029 INFO L93 Difference]: Finished difference Result 12114 states and 16219 transitions. [2022-01-10 18:47:10,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:47:10,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 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 158 [2022-01-10 18:47:10,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:47:10,043 INFO L225 Difference]: With dead ends: 12114 [2022-01-10 18:47:10,044 INFO L226 Difference]: Without dead ends: 6221 [2022-01-10 18:47:10,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:47:10,054 INFO L933 BasicCegarLoop]: 886 mSDtfsCounter, 1031 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:47:10,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1031 Valid, 1361 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:47:10,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6221 states. [2022-01-10 18:47:10,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6221 to 6135. [2022-01-10 18:47:10,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6135 states, 6130 states have (on average 1.33605220228385) internal successors, (8190), 6134 states have internal predecessors, (8190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:10,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6135 states to 6135 states and 8190 transitions. [2022-01-10 18:47:10,524 INFO L78 Accepts]: Start accepts. Automaton has 6135 states and 8190 transitions. Word has length 158 [2022-01-10 18:47:10,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:47:10,524 INFO L470 AbstractCegarLoop]: Abstraction has 6135 states and 8190 transitions. [2022-01-10 18:47:10,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:10,525 INFO L276 IsEmpty]: Start isEmpty. Operand 6135 states and 8190 transitions. [2022-01-10 18:47:10,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-10 18:47:10,532 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:10,532 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:10,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 18:47:10,532 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:10,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:10,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1531858945, now seen corresponding path program 1 times [2022-01-10 18:47:10,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:10,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460046328] [2022-01-10 18:47:10,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:10,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:10,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:10,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:10,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460046328] [2022-01-10 18:47:10,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460046328] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:10,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:10,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:47:10,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590140224] [2022-01-10 18:47:10,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:10,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:47:10,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:10,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:47:10,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:47:10,610 INFO L87 Difference]: Start difference. First operand 6135 states and 8190 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:11,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:47:11,546 INFO L93 Difference]: Finished difference Result 16294 states and 21859 transitions. [2022-01-10 18:47:11,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:47:11,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2022-01-10 18:47:11,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:47:11,572 INFO L225 Difference]: With dead ends: 16294 [2022-01-10 18:47:11,573 INFO L226 Difference]: Without dead ends: 12070 [2022-01-10 18:47:11,581 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 [2022-01-10 18:47:11,582 INFO L933 BasicCegarLoop]: 1018 mSDtfsCounter, 495 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:47:11,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [495 Valid, 1535 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:47:11,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12070 states. [2022-01-10 18:47:12,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12070 to 6145. [2022-01-10 18:47:12,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6145 states, 6140 states have (on average 1.3355048859934853) internal successors, (8200), 6144 states have internal predecessors, (8200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:12,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6145 states to 6145 states and 8200 transitions. [2022-01-10 18:47:12,056 INFO L78 Accepts]: Start accepts. Automaton has 6145 states and 8200 transitions. Word has length 159 [2022-01-10 18:47:12,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:47:12,057 INFO L470 AbstractCegarLoop]: Abstraction has 6145 states and 8200 transitions. [2022-01-10 18:47:12,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:12,057 INFO L276 IsEmpty]: Start isEmpty. Operand 6145 states and 8200 transitions. [2022-01-10 18:47:12,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-01-10 18:47:12,065 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:12,065 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:12,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 18:47:12,065 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:12,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:12,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1662584139, now seen corresponding path program 1 times [2022-01-10 18:47:12,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:12,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576507940] [2022-01-10 18:47:12,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:12,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:12,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:12,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:12,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576507940] [2022-01-10 18:47:12,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576507940] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:12,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:12,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:47:12,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101923436] [2022-01-10 18:47:12,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:12,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:47:12,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:12,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:47:12,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:47:12,234 INFO L87 Difference]: Start difference. First operand 6145 states and 8200 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:13,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:47:13,024 INFO L93 Difference]: Finished difference Result 15768 states and 21039 transitions. [2022-01-10 18:47:13,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:47:13,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2022-01-10 18:47:13,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:47:13,045 INFO L225 Difference]: With dead ends: 15768 [2022-01-10 18:47:13,045 INFO L226 Difference]: Without dead ends: 10260 [2022-01-10 18:47:13,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:47:13,054 INFO L933 BasicCegarLoop]: 1256 mSDtfsCounter, 1612 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1612 SdHoareTripleChecker+Valid, 2223 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:47:13,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1612 Valid, 2223 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:47:13,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10260 states. [2022-01-10 18:47:13,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10260 to 6378. [2022-01-10 18:47:13,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6378 states, 6373 states have (on average 1.326376902557665) internal successors, (8453), 6377 states have internal predecessors, (8453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:13,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6378 states to 6378 states and 8453 transitions. [2022-01-10 18:47:13,508 INFO L78 Accepts]: Start accepts. Automaton has 6378 states and 8453 transitions. Word has length 160 [2022-01-10 18:47:13,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:47:13,508 INFO L470 AbstractCegarLoop]: Abstraction has 6378 states and 8453 transitions. [2022-01-10 18:47:13,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:13,509 INFO L276 IsEmpty]: Start isEmpty. Operand 6378 states and 8453 transitions. [2022-01-10 18:47:13,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-01-10 18:47:13,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:13,519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:13,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 18:47:13,519 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:13,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:13,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1170186983, now seen corresponding path program 1 times [2022-01-10 18:47:13,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:13,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709733564] [2022-01-10 18:47:13,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:13,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:13,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:13,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:13,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709733564] [2022-01-10 18:47:13,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709733564] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:13,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:13,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:47:13,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289737953] [2022-01-10 18:47:13,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:13,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:47:13,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:13,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:47:13,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:47:13,635 INFO L87 Difference]: Start difference. First operand 6378 states and 8453 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:14,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:47:14,104 INFO L93 Difference]: Finished difference Result 10143 states and 13477 transitions. [2022-01-10 18:47:14,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:47:14,105 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2022-01-10 18:47:14,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:47:14,117 INFO L225 Difference]: With dead ends: 10143 [2022-01-10 18:47:14,117 INFO L226 Difference]: Without dead ends: 5517 [2022-01-10 18:47:14,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:47:14,124 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 23 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:47:14,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 1586 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:47:14,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5517 states. [2022-01-10 18:47:14,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5517 to 5517. [2022-01-10 18:47:14,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5517 states, 5512 states have (on average 1.324201741654572) internal successors, (7299), 5516 states have internal predecessors, (7299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:14,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5517 states to 5517 states and 7299 transitions. [2022-01-10 18:47:14,611 INFO L78 Accepts]: Start accepts. Automaton has 5517 states and 7299 transitions. Word has length 160 [2022-01-10 18:47:14,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:47:14,611 INFO L470 AbstractCegarLoop]: Abstraction has 5517 states and 7299 transitions. [2022-01-10 18:47:14,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:14,612 INFO L276 IsEmpty]: Start isEmpty. Operand 5517 states and 7299 transitions. [2022-01-10 18:47:14,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 18:47:14,619 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:14,619 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:14,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 18:47:14,619 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:14,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:14,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1947291173, now seen corresponding path program 1 times [2022-01-10 18:47:14,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:14,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140305691] [2022-01-10 18:47:14,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:14,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:15,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:15,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:15,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140305691] [2022-01-10 18:47:15,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140305691] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:15,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:15,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 18:47:15,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015831124] [2022-01-10 18:47:15,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:15,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 18:47:15,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:15,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 18:47:15,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:47:15,810 INFO L87 Difference]: Start difference. First operand 5517 states and 7299 transitions. Second operand has 9 states, 9 states have (on average 18.333333333333332) internal successors, (165), 9 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:19,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:47:19,436 INFO L93 Difference]: Finished difference Result 10080 states and 13992 transitions. [2022-01-10 18:47:19,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 18:47:19,437 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.333333333333332) internal successors, (165), 9 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 18:47:19,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:47:19,449 INFO L225 Difference]: With dead ends: 10080 [2022-01-10 18:47:19,450 INFO L226 Difference]: Without dead ends: 8524 [2022-01-10 18:47:19,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-01-10 18:47:19,453 INFO L933 BasicCegarLoop]: 452 mSDtfsCounter, 2970 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2970 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-10 18:47:19,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2970 Valid, 1500 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-10 18:47:19,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8524 states. [2022-01-10 18:47:20,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8524 to 8522. [2022-01-10 18:47:20,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8522 states, 8517 states have (on average 1.3497710461430081) internal successors, (11496), 8521 states have internal predecessors, (11496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:20,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8522 states to 8522 states and 11496 transitions. [2022-01-10 18:47:20,959 INFO L78 Accepts]: Start accepts. Automaton has 8522 states and 11496 transitions. Word has length 165 [2022-01-10 18:47:20,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:47:20,960 INFO L470 AbstractCegarLoop]: Abstraction has 8522 states and 11496 transitions. [2022-01-10 18:47:20,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.333333333333332) internal successors, (165), 9 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:20,960 INFO L276 IsEmpty]: Start isEmpty. Operand 8522 states and 11496 transitions. [2022-01-10 18:47:20,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 18:47:20,969 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:20,969 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:20,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 18:47:20,970 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:20,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:20,970 INFO L85 PathProgramCache]: Analyzing trace with hash 970056408, now seen corresponding path program 1 times [2022-01-10 18:47:20,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:20,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081888344] [2022-01-10 18:47:20,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:20,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:22,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:22,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:22,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081888344] [2022-01-10 18:47:22,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081888344] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:22,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:22,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 18:47:22,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786593983] [2022-01-10 18:47:22,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:22,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 18:47:22,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:22,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 18:47:22,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-10 18:47:22,010 INFO L87 Difference]: Start difference. First operand 8522 states and 11496 transitions. Second operand has 8 states, 8 states have (on average 20.625) internal successors, (165), 8 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:27,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:47:27,723 INFO L93 Difference]: Finished difference Result 15670 states and 21804 transitions. [2022-01-10 18:47:27,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 18:47:27,723 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 8 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 18:47:27,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:47:27,743 INFO L225 Difference]: With dead ends: 15670 [2022-01-10 18:47:27,743 INFO L226 Difference]: Without dead ends: 12488 [2022-01-10 18:47:27,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-01-10 18:47:27,751 INFO L933 BasicCegarLoop]: 462 mSDtfsCounter, 3513 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3513 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-10 18:47:27,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3513 Valid, 1137 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-10 18:47:27,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12488 states. [2022-01-10 18:47:31,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12488 to 12486. [2022-01-10 18:47:31,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12486 states, 12481 states have (on average 1.3433218492108003) internal successors, (16766), 12485 states have internal predecessors, (16766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:31,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12486 states to 12486 states and 16766 transitions. [2022-01-10 18:47:31,661 INFO L78 Accepts]: Start accepts. Automaton has 12486 states and 16766 transitions. Word has length 165 [2022-01-10 18:47:31,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:47:31,661 INFO L470 AbstractCegarLoop]: Abstraction has 12486 states and 16766 transitions. [2022-01-10 18:47:31,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 8 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:47:31,661 INFO L276 IsEmpty]: Start isEmpty. Operand 12486 states and 16766 transitions. [2022-01-10 18:47:31,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 18:47:31,675 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:47:31,675 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:47:31,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 18:47:31,676 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 18:47:31,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:47:31,677 INFO L85 PathProgramCache]: Analyzing trace with hash -165791238, now seen corresponding path program 1 times [2022-01-10 18:47:31,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:47:31,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404334608] [2022-01-10 18:47:31,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:47:31,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:47:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:47:42,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:47:42,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:47:42,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404334608] [2022-01-10 18:47:42,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404334608] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:47:42,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:47:42,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-01-10 18:47:42,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180933861] [2022-01-10 18:47:42,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:47:42,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-10 18:47:42,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:47:42,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-10 18:47:42,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2022-01-10 18:47:42,210 INFO L87 Difference]: Start difference. First operand 12486 states and 16766 transitions. Second operand has 17 states, 17 states have (on average 9.705882352941176) internal successors, (165), 17 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)