/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 06:08:41,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 06:08:41,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 06:08:41,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 06:08:41,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 06:08:41,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 06:08:41,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 06:08:41,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 06:08:41,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 06:08:41,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 06:08:41,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 06:08:41,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 06:08:41,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 06:08:41,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 06:08:41,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 06:08:41,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 06:08:41,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 06:08:41,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 06:08:41,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 06:08:41,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 06:08:41,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 06:08:41,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 06:08:41,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 06:08:41,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 06:08:41,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 06:08:41,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 06:08:41,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 06:08:41,425 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 06:08:41,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 06:08:41,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 06:08:41,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 06:08:41,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 06:08:41,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 06:08:41,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 06:08:41,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 06:08:41,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 06:08:41,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 06:08:41,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 06:08:41,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 06:08:41,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 06:08:41,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 06:08:41,431 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 06:08:41,457 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 06:08:41,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 06:08:41,457 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 06:08:41,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 06:08:41,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 06:08:41,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 06:08:41,458 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 06:08:41,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 06:08:41,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 06:08:41,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 06:08:41,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 06:08:41,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 06:08:41,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 06:08:41,460 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 06:08:41,460 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 06:08:41,460 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 06:08:41,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 06:08:41,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 06:08:41,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 06:08:41,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 06:08:41,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 06:08:41,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 06:08:41,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 06:08:41,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 06:08:41,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 06:08:41,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 06:08:41,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 06:08:41,461 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 06:08:41,461 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 06:08:41,461 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 06:08:41,461 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 06:08:41,461 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 06:08:41,462 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 06:08:41,462 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 06:08:41,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 06:08:41,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 06:08:41,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 06:08:41,638 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 06:08:41,638 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 06:08:41,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c [2022-01-11 06:08:41,677 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f3d90535/72d1249c7dc9498ca39d1ef5f88bdee6/FLAG3a70250d9 [2022-01-11 06:08:42,036 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 06:08:42,036 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c [2022-01-11 06:08:42,048 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f3d90535/72d1249c7dc9498ca39d1ef5f88bdee6/FLAG3a70250d9 [2022-01-11 06:08:42,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f3d90535/72d1249c7dc9498ca39d1ef5f88bdee6 [2022-01-11 06:08:42,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 06:08:42,434 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 06:08:42,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 06:08:42,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 06:08:42,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 06:08:42,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 06:08:42" (1/1) ... [2022-01-11 06:08:42,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bf38c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:08:42, skipping insertion in model container [2022-01-11 06:08:42,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 06:08:42" (1/1) ... [2022-01-11 06:08:42,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 06:08:42,480 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 06:08:42,739 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/pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c[14680,14693] [2022-01-11 06:08:42,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 06:08:42,756 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 06:08:42,816 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/pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c[14680,14693] [2022-01-11 06:08:42,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 06:08:42,833 INFO L208 MainTranslator]: Completed translation [2022-01-11 06:08:42,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:08:42 WrapperNode [2022-01-11 06:08:42,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 06:08:42,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 06:08:42,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 06:08:42,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 06:08:42,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:08:42" (1/1) ... [2022-01-11 06:08:42,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:08:42" (1/1) ... [2022-01-11 06:08:42,914 INFO L137 Inliner]: procedures = 32, calls = 48, calls flagged for inlining = 43, calls inlined = 61, statements flattened = 935 [2022-01-11 06:08:42,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 06:08:42,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 06:08:42,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 06:08:42,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 06:08:42,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:08:42" (1/1) ... [2022-01-11 06:08:42,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:08:42" (1/1) ... [2022-01-11 06:08:42,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:08:42" (1/1) ... [2022-01-11 06:08:42,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:08:42" (1/1) ... [2022-01-11 06:08:42,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:08:42" (1/1) ... [2022-01-11 06:08:42,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:08:42" (1/1) ... [2022-01-11 06:08:42,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:08:42" (1/1) ... [2022-01-11 06:08:42,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 06:08:42,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 06:08:42,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 06:08:42,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 06:08:42,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:08:42" (1/1) ... [2022-01-11 06:08:42,991 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 06:08:43,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 06:08:43,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 06:08:43,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 06:08:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 06:08:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 06:08:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 06:08:43,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 06:08:43,171 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 06:08:43,172 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 06:08:43,707 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 06:08:43,718 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 06:08:43,718 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 06:08:43,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:08:43 BoogieIcfgContainer [2022-01-11 06:08:43,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 06:08:43,721 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 06:08:43,721 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 06:08:43,723 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 06:08:43,725 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:08:43" (1/1) ... [2022-01-11 06:08:43,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 06:08:43 BasicIcfg [2022-01-11 06:08:43,979 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 06:08:43,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 06:08:43,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 06:08:43,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 06:08:43,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 06:08:42" (1/4) ... [2022-01-11 06:08:43,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ccb0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 06:08:43, skipping insertion in model container [2022-01-11 06:08:43,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:08:42" (2/4) ... [2022-01-11 06:08:43,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ccb0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 06:08:43, skipping insertion in model container [2022-01-11 06:08:43,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:08:43" (3/4) ... [2022-01-11 06:08:43,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ccb0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 06:08:43, skipping insertion in model container [2022-01-11 06:08:43,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 06:08:43" (4/4) ... [2022-01-11 06:08:43,985 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.cTransformedIcfg [2022-01-11 06:08:43,989 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 06:08:43,990 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2022-01-11 06:08:44,032 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 06:08:44,039 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 06:08:44,039 INFO L340 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2022-01-11 06:08:44,058 INFO L276 IsEmpty]: Start isEmpty. Operand has 301 states, 277 states have (on average 1.6931407942238268) internal successors, (469), 300 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:44,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-11 06:08:44,064 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:44,065 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] [2022-01-11 06:08:44,065 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:44,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:44,069 INFO L85 PathProgramCache]: Analyzing trace with hash 677488487, now seen corresponding path program 1 times [2022-01-11 06:08:44,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:44,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670153303] [2022-01-11 06:08:44,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:44,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:44,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:44,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:44,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670153303] [2022-01-11 06:08:44,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670153303] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:44,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:44,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 06:08:44,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717200366] [2022-01-11 06:08:44,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:44,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 06:08:44,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:44,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 06:08:44,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 06:08:44,376 INFO L87 Difference]: Start difference. First operand has 301 states, 277 states have (on average 1.6931407942238268) internal successors, (469), 300 states have internal predecessors, (469), 0 states have call successors, (0), 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 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:44,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:44,413 INFO L93 Difference]: Finished difference Result 582 states and 906 transitions. [2022-01-11 06:08:44,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 06:08:44,415 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-01-11 06:08:44,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:44,422 INFO L225 Difference]: With dead ends: 582 [2022-01-11 06:08:44,423 INFO L226 Difference]: Without dead ends: 297 [2022-01-11 06:08:44,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 06:08:44,430 INFO L933 BasicCegarLoop]: 433 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:44,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:44,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-01-11 06:08:44,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2022-01-11 06:08:44,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 274 states have (on average 1.5802919708029197) internal successors, (433), 296 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:44,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 433 transitions. [2022-01-11 06:08:44,489 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 433 transitions. Word has length 36 [2022-01-11 06:08:44,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:44,490 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 433 transitions. [2022-01-11 06:08:44,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:44,490 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 433 transitions. [2022-01-11 06:08:44,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-11 06:08:44,491 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:44,491 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] [2022-01-11 06:08:44,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 06:08:44,491 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:44,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:44,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1221910521, now seen corresponding path program 1 times [2022-01-11 06:08:44,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:44,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171660319] [2022-01-11 06:08:44,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:44,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:44,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:44,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:44,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171660319] [2022-01-11 06:08:44,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171660319] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:44,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:44,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:08:44,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660547922] [2022-01-11 06:08:44,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:44,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:08:44,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:44,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:08:44,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:44,619 INFO L87 Difference]: Start difference. First operand 297 states and 433 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:44,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:44,678 INFO L93 Difference]: Finished difference Result 660 states and 955 transitions. [2022-01-11 06:08:44,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:08:44,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-01-11 06:08:44,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:44,682 INFO L225 Difference]: With dead ends: 660 [2022-01-11 06:08:44,682 INFO L226 Difference]: Without dead ends: 380 [2022-01-11 06:08:44,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:44,690 INFO L933 BasicCegarLoop]: 472 mSDtfsCounter, 342 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:44,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 656 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:44,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-01-11 06:08:44,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 273. [2022-01-11 06:08:44,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 254 states have (on average 1.562992125984252) internal successors, (397), 272 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:44,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 397 transitions. [2022-01-11 06:08:44,750 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 397 transitions. Word has length 36 [2022-01-11 06:08:44,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:44,751 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 397 transitions. [2022-01-11 06:08:44,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:44,751 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 397 transitions. [2022-01-11 06:08:44,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-11 06:08:44,752 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:44,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:08:44,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 06:08:44,752 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:44,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:44,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1889584923, now seen corresponding path program 1 times [2022-01-11 06:08:44,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:44,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080193131] [2022-01-11 06:08:44,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:44,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:44,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:44,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:44,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080193131] [2022-01-11 06:08:44,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080193131] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:44,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:44,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:08:44,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886624850] [2022-01-11 06:08:44,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:44,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:08:44,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:44,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:08:44,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:44,834 INFO L87 Difference]: Start difference. First operand 273 states and 397 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:44,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:44,862 INFO L93 Difference]: Finished difference Result 761 states and 1097 transitions. [2022-01-11 06:08:44,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:08:44,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-01-11 06:08:44,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:44,864 INFO L225 Difference]: With dead ends: 761 [2022-01-11 06:08:44,864 INFO L226 Difference]: Without dead ends: 505 [2022-01-11 06:08:44,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:44,870 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 316 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:44,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 787 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:44,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-01-11 06:08:44,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 310. [2022-01-11 06:08:44,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 291 states have (on average 1.5498281786941581) internal successors, (451), 309 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:44,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 451 transitions. [2022-01-11 06:08:44,883 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 451 transitions. Word has length 46 [2022-01-11 06:08:44,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:44,883 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 451 transitions. [2022-01-11 06:08:44,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:44,883 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 451 transitions. [2022-01-11 06:08:44,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-11 06:08:44,888 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:44,888 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] [2022-01-11 06:08:44,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 06:08:44,888 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:44,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:44,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1409628564, now seen corresponding path program 1 times [2022-01-11 06:08:44,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:44,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883789832] [2022-01-11 06:08:44,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:44,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:44,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:44,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:44,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883789832] [2022-01-11 06:08:44,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883789832] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:44,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:44,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:08:44,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206628397] [2022-01-11 06:08:44,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:44,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:08:44,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:44,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:08:44,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:44,992 INFO L87 Difference]: Start difference. First operand 310 states and 451 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:45,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:45,019 INFO L93 Difference]: Finished difference Result 850 states and 1227 transitions. [2022-01-11 06:08:45,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:08:45,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2022-01-11 06:08:45,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:45,022 INFO L225 Difference]: With dead ends: 850 [2022-01-11 06:08:45,022 INFO L226 Difference]: Without dead ends: 557 [2022-01-11 06:08:45,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:45,027 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 324 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:45,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [324 Valid, 824 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:45,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-01-11 06:08:45,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 337. [2022-01-11 06:08:45,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 318 states have (on average 1.5440251572327044) internal successors, (491), 336 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:45,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 491 transitions. [2022-01-11 06:08:45,042 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 491 transitions. Word has length 47 [2022-01-11 06:08:45,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:45,043 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 491 transitions. [2022-01-11 06:08:45,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:45,044 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 491 transitions. [2022-01-11 06:08:45,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-11 06:08:45,045 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:45,045 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] [2022-01-11 06:08:45,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 06:08:45,045 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:45,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:45,046 INFO L85 PathProgramCache]: Analyzing trace with hash -397825899, now seen corresponding path program 1 times [2022-01-11 06:08:45,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:45,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744509086] [2022-01-11 06:08:45,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:45,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:45,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:45,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:45,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744509086] [2022-01-11 06:08:45,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744509086] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:45,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:45,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:08:45,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783115604] [2022-01-11 06:08:45,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:45,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:08:45,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:45,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:08:45,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:08:45,156 INFO L87 Difference]: Start difference. First operand 337 states and 491 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:45,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:45,194 INFO L93 Difference]: Finished difference Result 1028 states and 1485 transitions. [2022-01-11 06:08:45,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 06:08:45,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2022-01-11 06:08:45,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:45,198 INFO L225 Difference]: With dead ends: 1028 [2022-01-11 06:08:45,199 INFO L226 Difference]: Without dead ends: 708 [2022-01-11 06:08:45,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:08:45,200 INFO L933 BasicCegarLoop]: 556 mSDtfsCounter, 522 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:45,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [522 Valid, 1072 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:45,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2022-01-11 06:08:45,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 332. [2022-01-11 06:08:45,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 314 states have (on average 1.5382165605095541) internal successors, (483), 331 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:45,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 483 transitions. [2022-01-11 06:08:45,212 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 483 transitions. Word has length 47 [2022-01-11 06:08:45,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:45,213 INFO L470 AbstractCegarLoop]: Abstraction has 332 states and 483 transitions. [2022-01-11 06:08:45,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:45,216 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 483 transitions. [2022-01-11 06:08:45,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-11 06:08:45,221 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:45,221 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] [2022-01-11 06:08:45,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 06:08:45,222 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:45,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:45,222 INFO L85 PathProgramCache]: Analyzing trace with hash 873255488, now seen corresponding path program 1 times [2022-01-11 06:08:45,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:45,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654348928] [2022-01-11 06:08:45,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:45,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:45,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:45,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:45,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654348928] [2022-01-11 06:08:45,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654348928] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:45,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:45,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:08:45,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484924987] [2022-01-11 06:08:45,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:45,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:08:45,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:45,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:08:45,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:45,334 INFO L87 Difference]: Start difference. First operand 332 states and 483 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:45,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:45,384 INFO L93 Difference]: Finished difference Result 822 states and 1196 transitions. [2022-01-11 06:08:45,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:08:45,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-01-11 06:08:45,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:45,388 INFO L225 Difference]: With dead ends: 822 [2022-01-11 06:08:45,388 INFO L226 Difference]: Without dead ends: 507 [2022-01-11 06:08:45,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:45,390 INFO L933 BasicCegarLoop]: 505 mSDtfsCounter, 290 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:45,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 731 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:45,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-01-11 06:08:45,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 312. [2022-01-11 06:08:45,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 298 states have (on average 1.5134228187919463) internal successors, (451), 311 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:45,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 451 transitions. [2022-01-11 06:08:45,401 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 451 transitions. Word has length 51 [2022-01-11 06:08:45,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:45,401 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 451 transitions. [2022-01-11 06:08:45,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:45,402 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 451 transitions. [2022-01-11 06:08:45,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-11 06:08:45,402 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:45,403 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] [2022-01-11 06:08:45,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 06:08:45,403 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:45,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:45,404 INFO L85 PathProgramCache]: Analyzing trace with hash 630265709, now seen corresponding path program 1 times [2022-01-11 06:08:45,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:45,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260965559] [2022-01-11 06:08:45,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:45,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:45,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:45,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:45,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260965559] [2022-01-11 06:08:45,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260965559] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:45,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:45,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:08:45,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59331180] [2022-01-11 06:08:45,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:45,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:08:45,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:45,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:08:45,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:45,502 INFO L87 Difference]: Start difference. First operand 312 states and 451 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:45,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:45,540 INFO L93 Difference]: Finished difference Result 761 states and 1094 transitions. [2022-01-11 06:08:45,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:08:45,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-01-11 06:08:45,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:45,542 INFO L225 Difference]: With dead ends: 761 [2022-01-11 06:08:45,543 INFO L226 Difference]: Without dead ends: 466 [2022-01-11 06:08:45,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:45,544 INFO L933 BasicCegarLoop]: 479 mSDtfsCounter, 187 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:45,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 749 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:45,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-01-11 06:08:45,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 300. [2022-01-11 06:08:45,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 288 states have (on average 1.5034722222222223) internal successors, (433), 299 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:45,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 433 transitions. [2022-01-11 06:08:45,556 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 433 transitions. Word has length 55 [2022-01-11 06:08:45,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:45,557 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 433 transitions. [2022-01-11 06:08:45,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:45,557 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 433 transitions. [2022-01-11 06:08:45,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 06:08:45,558 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:45,558 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:08:45,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 06:08:45,558 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:45,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:45,559 INFO L85 PathProgramCache]: Analyzing trace with hash -235147109, now seen corresponding path program 1 times [2022-01-11 06:08:45,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:45,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844727267] [2022-01-11 06:08:45,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:45,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:45,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:45,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:45,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844727267] [2022-01-11 06:08:45,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844727267] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:45,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:45,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:08:45,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356464356] [2022-01-11 06:08:45,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:45,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:08:45,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:45,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:08:45,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:08:45,631 INFO L87 Difference]: Start difference. First operand 300 states and 433 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:45,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:45,702 INFO L93 Difference]: Finished difference Result 952 states and 1367 transitions. [2022-01-11 06:08:45,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 06:08:45,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-11 06:08:45,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:45,705 INFO L225 Difference]: With dead ends: 952 [2022-01-11 06:08:45,705 INFO L226 Difference]: Without dead ends: 669 [2022-01-11 06:08:45,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:08:45,706 INFO L933 BasicCegarLoop]: 473 mSDtfsCounter, 439 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:45,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [439 Valid, 1081 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:45,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2022-01-11 06:08:45,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 270. [2022-01-11 06:08:45,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 264 states have (on average 1.4659090909090908) internal successors, (387), 269 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:45,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 387 transitions. [2022-01-11 06:08:45,721 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 387 transitions. Word has length 56 [2022-01-11 06:08:45,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:45,722 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 387 transitions. [2022-01-11 06:08:45,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:45,722 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 387 transitions. [2022-01-11 06:08:45,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 06:08:45,723 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:45,723 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:08:45,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 06:08:45,723 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:45,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:45,724 INFO L85 PathProgramCache]: Analyzing trace with hash 370525189, now seen corresponding path program 1 times [2022-01-11 06:08:45,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:45,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475556733] [2022-01-11 06:08:45,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:45,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:45,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:45,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:45,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475556733] [2022-01-11 06:08:45,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475556733] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:45,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:45,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:08:45,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890508783] [2022-01-11 06:08:45,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:45,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:08:45,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:45,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:08:45,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:08:45,811 INFO L87 Difference]: Start difference. First operand 270 states and 387 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:45,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:45,844 INFO L93 Difference]: Finished difference Result 526 states and 748 transitions. [2022-01-11 06:08:45,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 06:08:45,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-11 06:08:45,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:45,846 INFO L225 Difference]: With dead ends: 526 [2022-01-11 06:08:45,846 INFO L226 Difference]: Without dead ends: 270 [2022-01-11 06:08:45,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:08:45,848 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 1 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:45,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 859 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:45,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-01-11 06:08:45,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2022-01-11 06:08:45,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 264 states have (on average 1.4204545454545454) internal successors, (375), 269 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:45,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 375 transitions. [2022-01-11 06:08:45,860 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 375 transitions. Word has length 61 [2022-01-11 06:08:45,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:45,861 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 375 transitions. [2022-01-11 06:08:45,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:45,861 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 375 transitions. [2022-01-11 06:08:45,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-11 06:08:45,863 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:45,863 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] [2022-01-11 06:08:45,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 06:08:45,863 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:45,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:45,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1076438723, now seen corresponding path program 1 times [2022-01-11 06:08:45,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:45,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33077381] [2022-01-11 06:08:45,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:45,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:45,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:45,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:45,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:45,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33077381] [2022-01-11 06:08:45,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33077381] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:45,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:45,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:08:45,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061970570] [2022-01-11 06:08:45,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:45,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 06:08:45,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:45,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 06:08:45,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:08:45,959 INFO L87 Difference]: Start difference. First operand 270 states and 375 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:46,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:46,212 INFO L93 Difference]: Finished difference Result 850 states and 1192 transitions. [2022-01-11 06:08:46,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 06:08:46,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2022-01-11 06:08:46,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:46,215 INFO L225 Difference]: With dead ends: 850 [2022-01-11 06:08:46,215 INFO L226 Difference]: Without dead ends: 597 [2022-01-11 06:08:46,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-11 06:08:46,216 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 928 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:46,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [928 Valid, 729 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 06:08:46,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-01-11 06:08:46,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 376. [2022-01-11 06:08:46,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 370 states have (on average 1.4054054054054055) internal successors, (520), 375 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:46,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 520 transitions. [2022-01-11 06:08:46,233 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 520 transitions. Word has length 72 [2022-01-11 06:08:46,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:46,234 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 520 transitions. [2022-01-11 06:08:46,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:46,234 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 520 transitions. [2022-01-11 06:08:46,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-11 06:08:46,234 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:46,234 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] [2022-01-11 06:08:46,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 06:08:46,235 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:46,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:46,235 INFO L85 PathProgramCache]: Analyzing trace with hash 345240174, now seen corresponding path program 1 times [2022-01-11 06:08:46,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:46,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123111533] [2022-01-11 06:08:46,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:46,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:46,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:46,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:46,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123111533] [2022-01-11 06:08:46,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123111533] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:46,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:46,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:08:46,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486964072] [2022-01-11 06:08:46,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:46,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 06:08:46,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:46,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 06:08:46,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:08:46,313 INFO L87 Difference]: Start difference. First operand 376 states and 520 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:46,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:46,559 INFO L93 Difference]: Finished difference Result 854 states and 1188 transitions. [2022-01-11 06:08:46,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 06:08:46,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2022-01-11 06:08:46,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:46,562 INFO L225 Difference]: With dead ends: 854 [2022-01-11 06:08:46,562 INFO L226 Difference]: Without dead ends: 601 [2022-01-11 06:08:46,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-11 06:08:46,563 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 925 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:46,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [925 Valid, 731 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 06:08:46,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-01-11 06:08:46,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 380. [2022-01-11 06:08:46,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 374 states have (on average 1.3903743315508021) internal successors, (520), 379 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:46,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 520 transitions. [2022-01-11 06:08:46,581 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 520 transitions. Word has length 73 [2022-01-11 06:08:46,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:46,582 INFO L470 AbstractCegarLoop]: Abstraction has 380 states and 520 transitions. [2022-01-11 06:08:46,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:46,582 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 520 transitions. [2022-01-11 06:08:46,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-11 06:08:46,582 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:46,582 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] [2022-01-11 06:08:46,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 06:08:46,583 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:46,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:46,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1277480536, now seen corresponding path program 1 times [2022-01-11 06:08:46,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:46,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46868912] [2022-01-11 06:08:46,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:46,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:46,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:46,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:46,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46868912] [2022-01-11 06:08:46,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46868912] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:46,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:46,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:08:46,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136006788] [2022-01-11 06:08:46,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:46,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:08:46,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:46,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:08:46,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:08:46,687 INFO L87 Difference]: Start difference. First operand 380 states and 520 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:46,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:46,744 INFO L93 Difference]: Finished difference Result 635 states and 880 transitions. [2022-01-11 06:08:46,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 06:08:46,745 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2022-01-11 06:08:46,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:46,746 INFO L225 Difference]: With dead ends: 635 [2022-01-11 06:08:46,746 INFO L226 Difference]: Without dead ends: 346 [2022-01-11 06:08:46,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:08:46,747 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 1 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:46,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 833 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:46,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-01-11 06:08:46,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2022-01-11 06:08:46,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 340 states have (on average 1.4) internal successors, (476), 345 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:46,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 476 transitions. [2022-01-11 06:08:46,767 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 476 transitions. Word has length 76 [2022-01-11 06:08:46,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:46,768 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 476 transitions. [2022-01-11 06:08:46,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:46,768 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 476 transitions. [2022-01-11 06:08:46,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-11 06:08:46,768 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:46,769 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] [2022-01-11 06:08:46,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 06:08:46,769 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:46,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:46,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1101420899, now seen corresponding path program 1 times [2022-01-11 06:08:46,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:46,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874943877] [2022-01-11 06:08:46,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:46,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:46,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:46,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:46,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874943877] [2022-01-11 06:08:46,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874943877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:46,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:46,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:08:46,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936847045] [2022-01-11 06:08:46,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:46,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 06:08:46,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:46,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 06:08:46,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:08:46,921 INFO L87 Difference]: Start difference. First operand 346 states and 476 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:47,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:47,047 INFO L93 Difference]: Finished difference Result 1268 states and 1765 transitions. [2022-01-11 06:08:47,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 06:08:47,048 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2022-01-11 06:08:47,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:47,051 INFO L225 Difference]: With dead ends: 1268 [2022-01-11 06:08:47,051 INFO L226 Difference]: Without dead ends: 1035 [2022-01-11 06:08:47,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-11 06:08:47,052 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 1134 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:47,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1134 Valid, 2134 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:47,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2022-01-11 06:08:47,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 366. [2022-01-11 06:08:47,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 360 states have (on average 1.3805555555555555) internal successors, (497), 365 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:47,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 497 transitions. [2022-01-11 06:08:47,081 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 497 transitions. Word has length 76 [2022-01-11 06:08:47,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:47,081 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 497 transitions. [2022-01-11 06:08:47,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:47,081 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 497 transitions. [2022-01-11 06:08:47,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-11 06:08:47,082 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:47,082 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] [2022-01-11 06:08:47,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 06:08:47,082 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:47,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:47,083 INFO L85 PathProgramCache]: Analyzing trace with hash 194458744, now seen corresponding path program 1 times [2022-01-11 06:08:47,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:47,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688841427] [2022-01-11 06:08:47,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:47,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:47,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:47,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:47,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688841427] [2022-01-11 06:08:47,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688841427] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:47,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:47,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:08:47,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508251903] [2022-01-11 06:08:47,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:47,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 06:08:47,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:47,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 06:08:47,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:08:47,192 INFO L87 Difference]: Start difference. First operand 366 states and 497 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:47,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:47,471 INFO L93 Difference]: Finished difference Result 1516 states and 2097 transitions. [2022-01-11 06:08:47,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 06:08:47,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-01-11 06:08:47,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:47,475 INFO L225 Difference]: With dead ends: 1516 [2022-01-11 06:08:47,476 INFO L226 Difference]: Without dead ends: 1283 [2022-01-11 06:08:47,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-11 06:08:47,477 INFO L933 BasicCegarLoop]: 826 mSDtfsCounter, 1393 mSDsluCounter, 1918 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:47,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1393 Valid, 2744 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:08:47,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2022-01-11 06:08:47,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 394. [2022-01-11 06:08:47,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 388 states have (on average 1.365979381443299) internal successors, (530), 393 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:47,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 530 transitions. [2022-01-11 06:08:47,505 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 530 transitions. Word has length 80 [2022-01-11 06:08:47,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:47,505 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 530 transitions. [2022-01-11 06:08:47,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:47,505 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 530 transitions. [2022-01-11 06:08:47,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-11 06:08:47,505 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:47,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:08:47,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 06:08:47,506 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:47,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:47,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1591536714, now seen corresponding path program 1 times [2022-01-11 06:08:47,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:47,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261150211] [2022-01-11 06:08:47,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:47,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:47,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:47,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:47,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261150211] [2022-01-11 06:08:47,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261150211] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:47,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:47,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:08:47,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661036239] [2022-01-11 06:08:47,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:47,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 06:08:47,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:47,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 06:08:47,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:08:47,665 INFO L87 Difference]: Start difference. First operand 394 states and 530 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:47,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:47,812 INFO L93 Difference]: Finished difference Result 1139 states and 1570 transitions. [2022-01-11 06:08:47,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 06:08:47,812 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-01-11 06:08:47,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:47,815 INFO L225 Difference]: With dead ends: 1139 [2022-01-11 06:08:47,815 INFO L226 Difference]: Without dead ends: 885 [2022-01-11 06:08:47,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-11 06:08:47,818 INFO L933 BasicCegarLoop]: 469 mSDtfsCounter, 898 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 898 SdHoareTripleChecker+Valid, 2063 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:47,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [898 Valid, 2063 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:08:47,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2022-01-11 06:08:47,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 402. [2022-01-11 06:08:47,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 396 states have (on average 1.3585858585858586) internal successors, (538), 401 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:47,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 538 transitions. [2022-01-11 06:08:47,849 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 538 transitions. Word has length 80 [2022-01-11 06:08:47,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:47,849 INFO L470 AbstractCegarLoop]: Abstraction has 402 states and 538 transitions. [2022-01-11 06:08:47,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:47,849 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 538 transitions. [2022-01-11 06:08:47,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-11 06:08:47,850 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:47,850 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] [2022-01-11 06:08:47,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 06:08:47,850 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:47,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:47,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1586684041, now seen corresponding path program 1 times [2022-01-11 06:08:47,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:47,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234611056] [2022-01-11 06:08:47,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:47,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:47,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:47,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:47,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234611056] [2022-01-11 06:08:47,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234611056] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:47,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:47,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 06:08:47,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193391465] [2022-01-11 06:08:47,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:47,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 06:08:47,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:47,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 06:08:47,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-11 06:08:47,993 INFO L87 Difference]: Start difference. First operand 402 states and 538 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:48,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:48,248 INFO L93 Difference]: Finished difference Result 1377 states and 1890 transitions. [2022-01-11 06:08:48,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 06:08:48,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-01-11 06:08:48,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:48,251 INFO L225 Difference]: With dead ends: 1377 [2022-01-11 06:08:48,251 INFO L226 Difference]: Without dead ends: 1123 [2022-01-11 06:08:48,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-11 06:08:48,252 INFO L933 BasicCegarLoop]: 663 mSDtfsCounter, 1687 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1687 SdHoareTripleChecker+Valid, 2176 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:48,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1687 Valid, 2176 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:08:48,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2022-01-11 06:08:48,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 427. [2022-01-11 06:08:48,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 421 states have (on average 1.342042755344418) internal successors, (565), 426 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:48,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 565 transitions. [2022-01-11 06:08:48,289 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 565 transitions. Word has length 81 [2022-01-11 06:08:48,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:48,290 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 565 transitions. [2022-01-11 06:08:48,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:48,290 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 565 transitions. [2022-01-11 06:08:48,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-11 06:08:48,292 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:48,293 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] [2022-01-11 06:08:48,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 06:08:48,293 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:48,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:48,293 INFO L85 PathProgramCache]: Analyzing trace with hash -2012861069, now seen corresponding path program 1 times [2022-01-11 06:08:48,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:48,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574446441] [2022-01-11 06:08:48,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:48,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:48,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:48,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:48,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574446441] [2022-01-11 06:08:48,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574446441] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:48,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:48,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:08:48,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174187157] [2022-01-11 06:08:48,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:48,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:08:48,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:48,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:08:48,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:48,363 INFO L87 Difference]: Start difference. First operand 427 states and 565 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:48,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:48,431 INFO L93 Difference]: Finished difference Result 895 states and 1211 transitions. [2022-01-11 06:08:48,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:08:48,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-01-11 06:08:48,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:48,433 INFO L225 Difference]: With dead ends: 895 [2022-01-11 06:08:48,433 INFO L226 Difference]: Without dead ends: 627 [2022-01-11 06:08:48,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:48,434 INFO L933 BasicCegarLoop]: 437 mSDtfsCounter, 195 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:48,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 670 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:48,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2022-01-11 06:08:48,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 425. [2022-01-11 06:08:48,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 419 states have (on average 1.3365155131264916) internal successors, (560), 424 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:48,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 560 transitions. [2022-01-11 06:08:48,469 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 560 transitions. Word has length 81 [2022-01-11 06:08:48,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:48,469 INFO L470 AbstractCegarLoop]: Abstraction has 425 states and 560 transitions. [2022-01-11 06:08:48,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:48,470 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 560 transitions. [2022-01-11 06:08:48,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-11 06:08:48,470 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:48,470 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] [2022-01-11 06:08:48,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 06:08:48,470 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:48,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:48,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1280709097, now seen corresponding path program 1 times [2022-01-11 06:08:48,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:48,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957005048] [2022-01-11 06:08:48,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:48,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:48,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:48,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:48,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:48,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957005048] [2022-01-11 06:08:48,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957005048] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:48,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:48,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:08:48,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635348724] [2022-01-11 06:08:48,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:48,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:08:48,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:48,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:08:48,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:08:48,741 INFO L87 Difference]: Start difference. First operand 425 states and 560 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:48,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:48,907 INFO L93 Difference]: Finished difference Result 1125 states and 1497 transitions. [2022-01-11 06:08:48,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:08:48,908 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-01-11 06:08:48,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:48,910 INFO L225 Difference]: With dead ends: 1125 [2022-01-11 06:08:48,910 INFO L226 Difference]: Without dead ends: 859 [2022-01-11 06:08:48,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:08:48,911 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 567 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:48,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [567 Valid, 1014 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:08:48,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2022-01-11 06:08:48,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 661. [2022-01-11 06:08:48,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 655 states have (on average 1.3099236641221375) internal successors, (858), 660 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:48,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 858 transitions. [2022-01-11 06:08:48,981 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 858 transitions. Word has length 81 [2022-01-11 06:08:48,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:48,981 INFO L470 AbstractCegarLoop]: Abstraction has 661 states and 858 transitions. [2022-01-11 06:08:48,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:48,981 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 858 transitions. [2022-01-11 06:08:48,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-11 06:08:48,982 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:48,982 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] [2022-01-11 06:08:48,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 06:08:48,982 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:48,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:48,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1312791415, now seen corresponding path program 1 times [2022-01-11 06:08:48,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:48,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826365550] [2022-01-11 06:08:48,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:48,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:49,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:49,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:49,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826365550] [2022-01-11 06:08:49,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826365550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:49,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:49,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:08:49,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865764376] [2022-01-11 06:08:49,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:49,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 06:08:49,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:49,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 06:08:49,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:08:49,094 INFO L87 Difference]: Start difference. First operand 661 states and 858 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:49,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:49,435 INFO L93 Difference]: Finished difference Result 1924 states and 2600 transitions. [2022-01-11 06:08:49,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 06:08:49,435 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-01-11 06:08:49,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:49,440 INFO L225 Difference]: With dead ends: 1924 [2022-01-11 06:08:49,440 INFO L226 Difference]: Without dead ends: 1480 [2022-01-11 06:08:49,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-11 06:08:49,441 INFO L933 BasicCegarLoop]: 588 mSDtfsCounter, 1294 mSDsluCounter, 1397 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 1985 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:49,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1294 Valid, 1985 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:08:49,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2022-01-11 06:08:49,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 658. [2022-01-11 06:08:49,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 652 states have (on average 1.3021472392638036) internal successors, (849), 657 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:49,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 849 transitions. [2022-01-11 06:08:49,514 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 849 transitions. Word has length 83 [2022-01-11 06:08:49,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:49,515 INFO L470 AbstractCegarLoop]: Abstraction has 658 states and 849 transitions. [2022-01-11 06:08:49,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:49,515 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 849 transitions. [2022-01-11 06:08:49,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-11 06:08:49,515 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:49,515 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] [2022-01-11 06:08:49,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 06:08:49,516 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:49,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:49,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1354078392, now seen corresponding path program 1 times [2022-01-11 06:08:49,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:49,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986299714] [2022-01-11 06:08:49,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:49,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:49,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:49,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:49,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986299714] [2022-01-11 06:08:49,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986299714] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:49,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:49,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:08:49,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432224945] [2022-01-11 06:08:49,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:49,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:08:49,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:49,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:08:49,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:08:49,644 INFO L87 Difference]: Start difference. First operand 658 states and 849 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:49,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:49,869 INFO L93 Difference]: Finished difference Result 1691 states and 2222 transitions. [2022-01-11 06:08:49,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:08:49,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-01-11 06:08:49,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:49,872 INFO L225 Difference]: With dead ends: 1691 [2022-01-11 06:08:49,872 INFO L226 Difference]: Without dead ends: 1268 [2022-01-11 06:08:49,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:08:49,873 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 615 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:49,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [615 Valid, 1069 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:08:49,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2022-01-11 06:08:49,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 924. [2022-01-11 06:08:49,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 918 states have (on average 1.2821350762527233) internal successors, (1177), 923 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:49,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1177 transitions. [2022-01-11 06:08:49,961 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1177 transitions. Word has length 83 [2022-01-11 06:08:49,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:49,961 INFO L470 AbstractCegarLoop]: Abstraction has 924 states and 1177 transitions. [2022-01-11 06:08:49,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:49,961 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1177 transitions. [2022-01-11 06:08:49,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-11 06:08:49,962 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:49,962 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] [2022-01-11 06:08:49,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 06:08:49,962 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:49,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:49,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1537373213, now seen corresponding path program 1 times [2022-01-11 06:08:49,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:49,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429927047] [2022-01-11 06:08:49,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:49,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:50,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:50,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:50,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429927047] [2022-01-11 06:08:50,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429927047] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:50,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:50,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:08:50,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211423392] [2022-01-11 06:08:50,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:50,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:08:50,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:50,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:08:50,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:08:50,090 INFO L87 Difference]: Start difference. First operand 924 states and 1177 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:50,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:50,325 INFO L93 Difference]: Finished difference Result 2049 states and 2657 transitions. [2022-01-11 06:08:50,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:08:50,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-01-11 06:08:50,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:50,328 INFO L225 Difference]: With dead ends: 2049 [2022-01-11 06:08:50,329 INFO L226 Difference]: Without dead ends: 1448 [2022-01-11 06:08:50,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:08:50,330 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 559 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:50,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [559 Valid, 1193 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:08:50,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2022-01-11 06:08:50,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1241. [2022-01-11 06:08:50,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 1235 states have (on average 1.271255060728745) internal successors, (1570), 1240 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:50,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1570 transitions. [2022-01-11 06:08:50,472 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1570 transitions. Word has length 83 [2022-01-11 06:08:50,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:50,472 INFO L470 AbstractCegarLoop]: Abstraction has 1241 states and 1570 transitions. [2022-01-11 06:08:50,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:50,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1570 transitions. [2022-01-11 06:08:50,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-11 06:08:50,473 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:50,473 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] [2022-01-11 06:08:50,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 06:08:50,473 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:50,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:50,474 INFO L85 PathProgramCache]: Analyzing trace with hash -685941736, now seen corresponding path program 1 times [2022-01-11 06:08:50,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:50,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354550339] [2022-01-11 06:08:50,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:50,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:50,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:50,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:50,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354550339] [2022-01-11 06:08:50,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354550339] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:50,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:50,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:08:50,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598190373] [2022-01-11 06:08:50,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:50,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 06:08:50,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:50,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 06:08:50,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:08:50,561 INFO L87 Difference]: Start difference. First operand 1241 states and 1570 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:50,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:50,987 INFO L93 Difference]: Finished difference Result 3184 states and 4176 transitions. [2022-01-11 06:08:50,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 06:08:50,989 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2022-01-11 06:08:50,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:50,994 INFO L225 Difference]: With dead ends: 3184 [2022-01-11 06:08:50,994 INFO L226 Difference]: Without dead ends: 2371 [2022-01-11 06:08:50,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-11 06:08:50,996 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 852 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:50,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [852 Valid, 1735 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:08:50,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2022-01-11 06:08:51,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 1335. [2022-01-11 06:08:51,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 1329 states have (on average 1.2648607975921746) internal successors, (1681), 1334 states have internal predecessors, (1681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:51,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1681 transitions. [2022-01-11 06:08:51,126 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1681 transitions. Word has length 84 [2022-01-11 06:08:51,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:51,126 INFO L470 AbstractCegarLoop]: Abstraction has 1335 states and 1681 transitions. [2022-01-11 06:08:51,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:51,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1681 transitions. [2022-01-11 06:08:51,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-11 06:08:51,127 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:51,127 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] [2022-01-11 06:08:51,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 06:08:51,128 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:51,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:51,128 INFO L85 PathProgramCache]: Analyzing trace with hash -444063788, now seen corresponding path program 1 times [2022-01-11 06:08:51,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:51,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227303940] [2022-01-11 06:08:51,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:51,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:51,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:51,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:51,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227303940] [2022-01-11 06:08:51,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227303940] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:51,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:51,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:08:51,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584331778] [2022-01-11 06:08:51,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:51,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:08:51,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:51,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:08:51,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:51,182 INFO L87 Difference]: Start difference. First operand 1335 states and 1681 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:51,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:51,604 INFO L93 Difference]: Finished difference Result 3158 states and 4007 transitions. [2022-01-11 06:08:51,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:08:51,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2022-01-11 06:08:51,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:51,610 INFO L225 Difference]: With dead ends: 3158 [2022-01-11 06:08:51,610 INFO L226 Difference]: Without dead ends: 2179 [2022-01-11 06:08:51,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:51,611 INFO L933 BasicCegarLoop]: 476 mSDtfsCounter, 241 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:51,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 702 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 06:08:51,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2179 states. [2022-01-11 06:08:51,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2179 to 1337. [2022-01-11 06:08:51,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1331 states have (on average 1.2644628099173554) internal successors, (1683), 1336 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:51,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1683 transitions. [2022-01-11 06:08:51,797 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1683 transitions. Word has length 84 [2022-01-11 06:08:51,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:51,797 INFO L470 AbstractCegarLoop]: Abstraction has 1337 states and 1683 transitions. [2022-01-11 06:08:51,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:51,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1683 transitions. [2022-01-11 06:08:51,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-11 06:08:51,798 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:51,798 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] [2022-01-11 06:08:51,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 06:08:51,799 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:51,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:51,799 INFO L85 PathProgramCache]: Analyzing trace with hash 346869312, now seen corresponding path program 1 times [2022-01-11 06:08:51,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:51,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818446677] [2022-01-11 06:08:51,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:51,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:51,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:51,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:51,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818446677] [2022-01-11 06:08:51,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818446677] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:51,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:51,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 06:08:51,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288186388] [2022-01-11 06:08:51,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:51,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 06:08:51,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:51,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 06:08:51,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:08:51,883 INFO L87 Difference]: Start difference. First operand 1337 states and 1683 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:52,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:52,055 INFO L93 Difference]: Finished difference Result 2318 states and 2993 transitions. [2022-01-11 06:08:52,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:08:52,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2022-01-11 06:08:52,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:52,059 INFO L225 Difference]: With dead ends: 2318 [2022-01-11 06:08:52,059 INFO L226 Difference]: Without dead ends: 1504 [2022-01-11 06:08:52,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:08:52,061 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 378 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:52,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [378 Valid, 875 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:52,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2022-01-11 06:08:52,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1329. [2022-01-11 06:08:52,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1329 states, 1325 states have (on average 1.260377358490566) internal successors, (1670), 1328 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:52,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1329 states to 1329 states and 1670 transitions. [2022-01-11 06:08:52,214 INFO L78 Accepts]: Start accepts. Automaton has 1329 states and 1670 transitions. Word has length 85 [2022-01-11 06:08:52,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:52,214 INFO L470 AbstractCegarLoop]: Abstraction has 1329 states and 1670 transitions. [2022-01-11 06:08:52,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:52,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1329 states and 1670 transitions. [2022-01-11 06:08:52,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-11 06:08:52,215 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:52,215 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] [2022-01-11 06:08:52,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 06:08:52,215 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:52,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:52,216 INFO L85 PathProgramCache]: Analyzing trace with hash 29022249, now seen corresponding path program 1 times [2022-01-11 06:08:52,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:52,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937885540] [2022-01-11 06:08:52,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:52,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:52,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:52,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:52,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937885540] [2022-01-11 06:08:52,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937885540] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:52,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:52,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:08:52,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382585252] [2022-01-11 06:08:52,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:52,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 06:08:52,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:52,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 06:08:52,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-11 06:08:52,623 INFO L87 Difference]: Start difference. First operand 1329 states and 1670 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:54,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:54,074 INFO L93 Difference]: Finished difference Result 3026 states and 3818 transitions. [2022-01-11 06:08:54,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 06:08:54,074 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2022-01-11 06:08:54,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:54,080 INFO L225 Difference]: With dead ends: 3026 [2022-01-11 06:08:54,080 INFO L226 Difference]: Without dead ends: 1777 [2022-01-11 06:08:54,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-01-11 06:08:54,082 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 1207 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:54,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1207 Valid, 1474 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-11 06:08:54,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1777 states. [2022-01-11 06:08:54,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1777 to 1190. [2022-01-11 06:08:54,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1190 states, 1186 states have (on average 1.269814502529511) internal successors, (1506), 1189 states have internal predecessors, (1506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:54,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1506 transitions. [2022-01-11 06:08:54,270 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1506 transitions. Word has length 85 [2022-01-11 06:08:54,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:54,270 INFO L470 AbstractCegarLoop]: Abstraction has 1190 states and 1506 transitions. [2022-01-11 06:08:54,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:54,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1506 transitions. [2022-01-11 06:08:54,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-11 06:08:54,271 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:54,271 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] [2022-01-11 06:08:54,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 06:08:54,271 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:54,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:54,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1193294496, now seen corresponding path program 1 times [2022-01-11 06:08:54,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:54,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573921227] [2022-01-11 06:08:54,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:54,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:54,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:54,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:54,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573921227] [2022-01-11 06:08:54,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573921227] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:54,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:54,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:08:54,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301659931] [2022-01-11 06:08:54,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:54,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 06:08:54,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:54,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 06:08:54,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-11 06:08:54,491 INFO L87 Difference]: Start difference. First operand 1190 states and 1506 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:55,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:55,315 INFO L93 Difference]: Finished difference Result 2847 states and 3646 transitions. [2022-01-11 06:08:55,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 06:08:55,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2022-01-11 06:08:55,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:55,321 INFO L225 Difference]: With dead ends: 2847 [2022-01-11 06:08:55,321 INFO L226 Difference]: Without dead ends: 1735 [2022-01-11 06:08:55,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-01-11 06:08:55,322 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 1245 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:55,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1245 Valid, 1717 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 06:08:55,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2022-01-11 06:08:55,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1043. [2022-01-11 06:08:55,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 1039 states have (on average 1.279114533205005) internal successors, (1329), 1042 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:55,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1329 transitions. [2022-01-11 06:08:55,545 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1329 transitions. Word has length 85 [2022-01-11 06:08:55,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:55,546 INFO L470 AbstractCegarLoop]: Abstraction has 1043 states and 1329 transitions. [2022-01-11 06:08:55,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:55,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1329 transitions. [2022-01-11 06:08:55,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-11 06:08:55,547 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:55,547 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] [2022-01-11 06:08:55,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 06:08:55,547 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:55,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:55,548 INFO L85 PathProgramCache]: Analyzing trace with hash 71380953, now seen corresponding path program 1 times [2022-01-11 06:08:55,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:55,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988145852] [2022-01-11 06:08:55,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:55,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:56,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:56,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:56,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988145852] [2022-01-11 06:08:56,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988145852] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:56,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:56,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 06:08:56,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17279611] [2022-01-11 06:08:56,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:56,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 06:08:56,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:56,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 06:08:56,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-11 06:08:56,045 INFO L87 Difference]: Start difference. First operand 1043 states and 1329 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:57,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:57,632 INFO L93 Difference]: Finished difference Result 3057 states and 3927 transitions. [2022-01-11 06:08:57,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 06:08:57,632 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-11 06:08:57,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:57,665 INFO L225 Difference]: With dead ends: 3057 [2022-01-11 06:08:57,665 INFO L226 Difference]: Without dead ends: 2147 [2022-01-11 06:08:57,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2022-01-11 06:08:57,666 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1729 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:57,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1729 Valid, 1771 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-11 06:08:57,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2147 states. [2022-01-11 06:08:57,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2147 to 1043. [2022-01-11 06:08:57,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 1039 states have (on average 1.275264677574591) internal successors, (1325), 1042 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:57,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1325 transitions. [2022-01-11 06:08:57,930 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1325 transitions. Word has length 86 [2022-01-11 06:08:57,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:57,930 INFO L470 AbstractCegarLoop]: Abstraction has 1043 states and 1325 transitions. [2022-01-11 06:08:57,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:57,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1325 transitions. [2022-01-11 06:08:57,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-11 06:08:57,931 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:57,931 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] [2022-01-11 06:08:57,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 06:08:57,931 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:57,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:57,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1636154245, now seen corresponding path program 1 times [2022-01-11 06:08:57,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:57,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590874822] [2022-01-11 06:08:57,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:57,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:57,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:58,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:58,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:58,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590874822] [2022-01-11 06:08:58,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590874822] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:58,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:58,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:08:58,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263973109] [2022-01-11 06:08:58,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:58,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:08:58,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:58,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:08:58,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:58,003 INFO L87 Difference]: Start difference. First operand 1043 states and 1325 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:58,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:58,560 INFO L93 Difference]: Finished difference Result 2430 states and 3116 transitions. [2022-01-11 06:08:58,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:08:58,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-11 06:08:58,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:58,563 INFO L225 Difference]: With dead ends: 2430 [2022-01-11 06:08:58,563 INFO L226 Difference]: Without dead ends: 1524 [2022-01-11 06:08:58,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:58,564 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 229 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:58,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 635 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 06:08:58,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2022-01-11 06:08:58,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1047. [2022-01-11 06:08:58,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1043 states have (on average 1.2722914669223393) internal successors, (1327), 1046 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:58,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1327 transitions. [2022-01-11 06:08:58,838 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1327 transitions. Word has length 86 [2022-01-11 06:08:58,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:58,839 INFO L470 AbstractCegarLoop]: Abstraction has 1047 states and 1327 transitions. [2022-01-11 06:08:58,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:58,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1327 transitions. [2022-01-11 06:08:58,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-11 06:08:58,839 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:58,839 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] [2022-01-11 06:08:58,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 06:08:58,840 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:58,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:58,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1705175633, now seen corresponding path program 1 times [2022-01-11 06:08:58,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:58,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587849120] [2022-01-11 06:08:58,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:58,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:59,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:59,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:59,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587849120] [2022-01-11 06:08:59,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587849120] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:59,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:59,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 06:08:59,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925582395] [2022-01-11 06:08:59,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:59,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 06:08:59,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:59,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 06:08:59,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:08:59,090 INFO L87 Difference]: Start difference. First operand 1047 states and 1327 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:00,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:09:00,033 INFO L93 Difference]: Finished difference Result 2387 states and 3063 transitions. [2022-01-11 06:09:00,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 06:09:00,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2022-01-11 06:09:00,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:09:00,036 INFO L225 Difference]: With dead ends: 2387 [2022-01-11 06:09:00,036 INFO L226 Difference]: Without dead ends: 1426 [2022-01-11 06:09:00,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-01-11 06:09:00,037 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 933 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 06:09:00,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [933 Valid, 911 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 06:09:00,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2022-01-11 06:09:00,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 992. [2022-01-11 06:09:00,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 988 states have (on average 1.2732793522267207) internal successors, (1258), 991 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:00,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1258 transitions. [2022-01-11 06:09:00,328 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1258 transitions. Word has length 87 [2022-01-11 06:09:00,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:09:00,328 INFO L470 AbstractCegarLoop]: Abstraction has 992 states and 1258 transitions. [2022-01-11 06:09:00,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:00,328 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1258 transitions. [2022-01-11 06:09:00,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-11 06:09:00,333 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:09:00,333 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] [2022-01-11 06:09:00,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 06:09:00,333 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:09:00,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:09:00,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1074429294, now seen corresponding path program 1 times [2022-01-11 06:09:00,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:09:00,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423146781] [2022-01-11 06:09:00,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:09:00,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:09:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:09:00,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:09:00,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:09:00,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423146781] [2022-01-11 06:09:00,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423146781] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:09:00,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:09:00,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:09:00,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129249553] [2022-01-11 06:09:00,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:09:00,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 06:09:00,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:09:00,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 06:09:00,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:09:00,431 INFO L87 Difference]: Start difference. First operand 992 states and 1258 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:01,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:09:01,304 INFO L93 Difference]: Finished difference Result 3365 states and 4450 transitions. [2022-01-11 06:09:01,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 06:09:01,304 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2022-01-11 06:09:01,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:09:01,309 INFO L225 Difference]: With dead ends: 3365 [2022-01-11 06:09:01,309 INFO L226 Difference]: Without dead ends: 2545 [2022-01-11 06:09:01,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-11 06:09:01,310 INFO L933 BasicCegarLoop]: 582 mSDtfsCounter, 789 mSDsluCounter, 1950 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 2532 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:09:01,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [789 Valid, 2532 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:09:01,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2545 states. [2022-01-11 06:09:01,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2545 to 996. [2022-01-11 06:09:01,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 992 states have (on average 1.2731854838709677) internal successors, (1263), 995 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:01,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1263 transitions. [2022-01-11 06:09:01,608 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1263 transitions. Word has length 89 [2022-01-11 06:09:01,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:09:01,608 INFO L470 AbstractCegarLoop]: Abstraction has 996 states and 1263 transitions. [2022-01-11 06:09:01,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:01,608 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1263 transitions. [2022-01-11 06:09:01,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-11 06:09:01,609 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:09:01,609 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] [2022-01-11 06:09:01,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-11 06:09:01,609 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:09:01,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:09:01,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1155874336, now seen corresponding path program 1 times [2022-01-11 06:09:01,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:09:01,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142594443] [2022-01-11 06:09:01,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:09:01,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:09:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:09:01,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:09:01,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:09:01,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142594443] [2022-01-11 06:09:01,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142594443] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:09:01,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:09:01,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:09:01,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523486470] [2022-01-11 06:09:01,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:09:01,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 06:09:01,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:09:01,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 06:09:01,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:09:01,692 INFO L87 Difference]: Start difference. First operand 996 states and 1263 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:02,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:09:02,326 INFO L93 Difference]: Finished difference Result 2673 states and 3523 transitions. [2022-01-11 06:09:02,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 06:09:02,327 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2022-01-11 06:09:02,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:09:02,329 INFO L225 Difference]: With dead ends: 2673 [2022-01-11 06:09:02,329 INFO L226 Difference]: Without dead ends: 1853 [2022-01-11 06:09:02,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-11 06:09:02,330 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 648 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:09:02,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [648 Valid, 1567 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:09:02,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1853 states. [2022-01-11 06:09:02,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1853 to 996. [2022-01-11 06:09:02,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 992 states have (on average 1.2721774193548387) internal successors, (1262), 995 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:02,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1262 transitions. [2022-01-11 06:09:02,622 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1262 transitions. Word has length 89 [2022-01-11 06:09:02,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:09:02,622 INFO L470 AbstractCegarLoop]: Abstraction has 996 states and 1262 transitions. [2022-01-11 06:09:02,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:02,623 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1262 transitions. [2022-01-11 06:09:02,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-11 06:09:02,623 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:09:02,623 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] [2022-01-11 06:09:02,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-11 06:09:02,623 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:09:02,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:09:02,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1929884928, now seen corresponding path program 1 times [2022-01-11 06:09:02,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:09:02,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249379823] [2022-01-11 06:09:02,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:09:02,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:09:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:09:02,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:09:02,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:09:02,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249379823] [2022-01-11 06:09:02,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249379823] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:09:02,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:09:02,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:09:02,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442954622] [2022-01-11 06:09:02,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:09:02,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:09:02,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:09:02,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:09:02,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:09:02,705 INFO L87 Difference]: Start difference. First operand 996 states and 1262 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:03,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:09:03,157 INFO L93 Difference]: Finished difference Result 1341 states and 1762 transitions. [2022-01-11 06:09:03,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:09:03,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2022-01-11 06:09:03,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:09:03,159 INFO L225 Difference]: With dead ends: 1341 [2022-01-11 06:09:03,159 INFO L226 Difference]: Without dead ends: 1339 [2022-01-11 06:09:03,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:09:03,168 INFO L933 BasicCegarLoop]: 415 mSDtfsCounter, 426 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:09:03,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 990 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:09:03,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2022-01-11 06:09:03,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 998. [2022-01-11 06:09:03,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 994 states have (on average 1.271629778672032) internal successors, (1264), 997 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:03,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1264 transitions. [2022-01-11 06:09:03,510 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1264 transitions. Word has length 93 [2022-01-11 06:09:03,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:09:03,511 INFO L470 AbstractCegarLoop]: Abstraction has 998 states and 1264 transitions. [2022-01-11 06:09:03,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:03,511 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1264 transitions. [2022-01-11 06:09:03,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-11 06:09:03,511 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:09:03,511 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] [2022-01-11 06:09:03,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-11 06:09:03,511 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:09:03,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:09:03,512 INFO L85 PathProgramCache]: Analyzing trace with hash -330473252, now seen corresponding path program 1 times [2022-01-11 06:09:03,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:09:03,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561162941] [2022-01-11 06:09:03,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:09:03,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:09:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:09:03,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:09:03,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:09:03,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561162941] [2022-01-11 06:09:03,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561162941] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:09:03,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:09:03,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 06:09:03,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141255223] [2022-01-11 06:09:03,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:09:03,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 06:09:03,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:09:03,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 06:09:03,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:09:03,579 INFO L87 Difference]: Start difference. First operand 998 states and 1264 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:03,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:09:03,995 INFO L93 Difference]: Finished difference Result 2197 states and 2859 transitions. [2022-01-11 06:09:03,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 06:09:03,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-01-11 06:09:03,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:09:03,997 INFO L225 Difference]: With dead ends: 2197 [2022-01-11 06:09:03,997 INFO L226 Difference]: Without dead ends: 1375 [2022-01-11 06:09:03,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:09:03,999 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 344 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:09:03,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 853 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:09:04,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2022-01-11 06:09:04,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 994. [2022-01-11 06:09:04,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 991 states have (on average 1.2684157416750756) internal successors, (1257), 993 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:04,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1257 transitions. [2022-01-11 06:09:04,303 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1257 transitions. Word has length 94 [2022-01-11 06:09:04,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:09:04,304 INFO L470 AbstractCegarLoop]: Abstraction has 994 states and 1257 transitions. [2022-01-11 06:09:04,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:04,304 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1257 transitions. [2022-01-11 06:09:04,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 06:09:04,304 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:09:04,304 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:09:04,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-11 06:09:04,305 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:09:04,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:09:04,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1646194750, now seen corresponding path program 1 times [2022-01-11 06:09:04,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:09:04,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389063248] [2022-01-11 06:09:04,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:09:04,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:09:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:09:04,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:09:04,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:09:04,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389063248] [2022-01-11 06:09:04,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389063248] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:09:04,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:09:04,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 06:09:04,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001448750] [2022-01-11 06:09:04,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:09:04,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 06:09:04,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:09:04,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 06:09:04,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:09:04,374 INFO L87 Difference]: Start difference. First operand 994 states and 1257 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:04,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:09:04,835 INFO L93 Difference]: Finished difference Result 2274 states and 2949 transitions. [2022-01-11 06:09:04,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:09:04,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-11 06:09:04,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:09:04,837 INFO L225 Difference]: With dead ends: 2274 [2022-01-11 06:09:04,837 INFO L226 Difference]: Without dead ends: 1456 [2022-01-11 06:09:04,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:09:04,838 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 351 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:09:04,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 812 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:09:04,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2022-01-11 06:09:05,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 990. [2022-01-11 06:09:05,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 988 states have (on average 1.2651821862348178) internal successors, (1250), 989 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:05,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1250 transitions. [2022-01-11 06:09:05,133 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1250 transitions. Word has length 99 [2022-01-11 06:09:05,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:09:05,134 INFO L470 AbstractCegarLoop]: Abstraction has 990 states and 1250 transitions. [2022-01-11 06:09:05,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:05,134 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1250 transitions. [2022-01-11 06:09:05,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-11 06:09:05,134 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:09:05,134 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] [2022-01-11 06:09:05,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-11 06:09:05,134 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:09:05,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:09:05,135 INFO L85 PathProgramCache]: Analyzing trace with hash -282696266, now seen corresponding path program 1 times [2022-01-11 06:09:05,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:09:05,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834163678] [2022-01-11 06:09:05,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:09:05,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:09:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:09:05,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:09:05,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:09:05,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834163678] [2022-01-11 06:09:05,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834163678] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:09:05,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:09:05,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 06:09:05,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666719547] [2022-01-11 06:09:05,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:09:05,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 06:09:05,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:09:05,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 06:09:05,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:09:05,206 INFO L87 Difference]: Start difference. First operand 990 states and 1250 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:05,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:09:05,725 INFO L93 Difference]: Finished difference Result 2434 states and 3124 transitions. [2022-01-11 06:09:05,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:09:05,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2022-01-11 06:09:05,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:09:05,729 INFO L225 Difference]: With dead ends: 2434 [2022-01-11 06:09:05,729 INFO L226 Difference]: Without dead ends: 1620 [2022-01-11 06:09:05,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:09:05,730 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 372 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:09:05,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [372 Valid, 877 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:09:05,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2022-01-11 06:09:06,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 986. [2022-01-11 06:09:06,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 985 states have (on average 1.2619289340101523) internal successors, (1243), 985 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:06,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1243 transitions. [2022-01-11 06:09:06,039 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1243 transitions. Word has length 107 [2022-01-11 06:09:06,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:09:06,039 INFO L470 AbstractCegarLoop]: Abstraction has 986 states and 1243 transitions. [2022-01-11 06:09:06,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:06,039 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1243 transitions. [2022-01-11 06:09:06,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-11 06:09:06,040 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:09:06,040 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] [2022-01-11 06:09:06,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-11 06:09:06,040 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:09:06,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:09:06,040 INFO L85 PathProgramCache]: Analyzing trace with hash -98294240, now seen corresponding path program 1 times [2022-01-11 06:09:06,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:09:06,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101208656] [2022-01-11 06:09:06,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:09:06,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:09:06,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:09:06,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:09:06,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:09:06,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101208656] [2022-01-11 06:09:06,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101208656] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:09:06,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:09:06,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:09:06,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559909472] [2022-01-11 06:09:06,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:09:06,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 06:09:06,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:09:06,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 06:09:06,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:09:06,210 INFO L87 Difference]: Start difference. First operand 986 states and 1243 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:06,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:09:06,947 INFO L93 Difference]: Finished difference Result 2394 states and 3173 transitions. [2022-01-11 06:09:06,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 06:09:06,947 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2022-01-11 06:09:06,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:09:06,949 INFO L225 Difference]: With dead ends: 2394 [2022-01-11 06:09:06,949 INFO L226 Difference]: Without dead ends: 1584 [2022-01-11 06:09:06,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-01-11 06:09:06,950 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 480 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:09:06,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [480 Valid, 1401 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:09:06,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2022-01-11 06:09:07,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 992. [2022-01-11 06:09:07,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 991 states have (on average 1.260343087790111) internal successors, (1249), 991 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:07,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1249 transitions. [2022-01-11 06:09:07,270 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1249 transitions. Word has length 119 [2022-01-11 06:09:07,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:09:07,270 INFO L470 AbstractCegarLoop]: Abstraction has 992 states and 1249 transitions. [2022-01-11 06:09:07,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:07,270 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1249 transitions. [2022-01-11 06:09:07,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-01-11 06:09:07,272 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:09:07,272 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:09:07,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-11 06:09:07,272 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:09:07,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:09:07,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1637288832, now seen corresponding path program 1 times [2022-01-11 06:09:07,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:09:07,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030857586] [2022-01-11 06:09:07,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:09:07,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:09:07,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:09:08,645 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:09:08,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:09:08,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030857586] [2022-01-11 06:09:08,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030857586] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 06:09:08,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486985633] [2022-01-11 06:09:08,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:09:08,645 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 06:09:08,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 06:09:08,647 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 06:09:08,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 06:09:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:09:08,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 1733 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-11 06:09:08,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 06:09:09,227 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:09:09,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 06:09:09,645 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:09:09,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486985633] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 06:09:09,646 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 06:09:09,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 7] total 22 [2022-01-11 06:09:09,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378063508] [2022-01-11 06:09:09,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 06:09:09,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-11 06:09:09,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:09:09,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-11 06:09:09,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2022-01-11 06:09:09,648 INFO L87 Difference]: Start difference. First operand 992 states and 1249 transitions. Second operand has 23 states, 23 states have (on average 17.043478260869566) internal successors, (392), 22 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:09:20,563 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []