/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 18:31:01,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 18:31:01,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 18:31:01,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 18:31:01,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 18:31:01,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 18:31:01,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 18:31:01,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 18:31:01,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 18:31:01,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 18:31:01,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 18:31:01,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 18:31:01,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 18:31:01,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 18:31:01,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 18:31:01,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 18:31:01,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 18:31:01,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 18:31:01,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 18:31:01,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 18:31:01,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 18:31:01,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 18:31:01,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 18:31:01,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 18:31:01,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 18:31:01,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 18:31:01,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 18:31:01,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 18:31:01,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 18:31:01,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 18:31:01,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 18:31:01,169 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 18:31:01,169 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 18:31:01,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 18:31:01,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 18:31:01,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 18:31:01,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 18:31:01,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 18:31:01,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 18:31:01,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 18:31:01,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 18:31:01,173 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 18:31:01,187 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 18:31:01,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 18:31:01,187 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 18:31:01,187 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 18:31:01,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 18:31:01,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 18:31:01,189 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 18:31:01,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 18:31:01,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 18:31:01,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 18:31:01,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 18:31:01,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 18:31:01,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 18:31:01,190 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 18:31:01,190 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 18:31:01,190 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 18:31:01,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 18:31:01,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 18:31:01,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 18:31:01,191 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 18:31:01,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 18:31:01,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:31:01,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 18:31:01,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 18:31:01,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 18:31:01,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 18:31:01,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 18:31:01,192 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 18:31:01,192 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 18:31:01,192 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 18:31:01,192 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 18:31:01,192 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 18:31:01,193 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 18:31:01,193 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 18:31:01,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 18:31:01,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 18:31:01,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 18:31:01,427 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 18:31:01,429 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 18:31:01,430 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2022-01-10 18:31:01,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea2b0663f/65b4fcbedf184d3294290242378f67ed/FLAGb5fcf0106 [2022-01-10 18:31:01,844 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 18:31:01,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2022-01-10 18:31:01,852 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea2b0663f/65b4fcbedf184d3294290242378f67ed/FLAGb5fcf0106 [2022-01-10 18:31:02,258 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea2b0663f/65b4fcbedf184d3294290242378f67ed [2022-01-10 18:31:02,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 18:31:02,261 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 18:31:02,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 18:31:02,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 18:31:02,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 18:31:02,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:31:02" (1/1) ... [2022-01-10 18:31:02,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f3ffc40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:31:02, skipping insertion in model container [2022-01-10 18:31:02,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:31:02" (1/1) ... [2022-01-10 18:31:02,283 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 18:31:02,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:31:02,529 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_Triplicated.1.ufo.BOUNDED-10.pals.c[11956,11969] [2022-01-10 18:31:02,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:31:02,537 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 18:31:02,601 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_Triplicated.1.ufo.BOUNDED-10.pals.c[11956,11969] [2022-01-10 18:31:02,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:31:02,625 INFO L208 MainTranslator]: Completed translation [2022-01-10 18:31:02,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:31:02 WrapperNode [2022-01-10 18:31:02,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 18:31:02,626 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 18:31:02,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 18:31:02,626 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 18:31:02,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:31:02" (1/1) ... [2022-01-10 18:31:02,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:31:02" (1/1) ... [2022-01-10 18:31:02,701 INFO L137 Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 41, calls inlined = 84, statements flattened = 1572 [2022-01-10 18:31:02,701 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 18:31:02,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 18:31:02,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 18:31:02,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 18:31:02,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:31:02" (1/1) ... [2022-01-10 18:31:02,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:31:02" (1/1) ... [2022-01-10 18:31:02,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:31:02" (1/1) ... [2022-01-10 18:31:02,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:31:02" (1/1) ... [2022-01-10 18:31:02,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:31:02" (1/1) ... [2022-01-10 18:31:02,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:31:02" (1/1) ... [2022-01-10 18:31:02,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:31:02" (1/1) ... [2022-01-10 18:31:02,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 18:31:02,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 18:31:02,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 18:31:02,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 18:31:02,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:31:02" (1/1) ... [2022-01-10 18:31:02,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:31:02,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:31:02,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 18:31:02,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 18:31:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 18:31:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 18:31:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 18:31:02,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 18:31:02,956 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 18:31:02,957 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 18:31:03,664 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 18:31:03,677 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 18:31:03,677 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-01-10 18:31:03,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:31:03 BoogieIcfgContainer [2022-01-10 18:31:03,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 18:31:03,681 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 18:31:03,681 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 18:31:03,682 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 18:31:03,685 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:31:03" (1/1) ... [2022-01-10 18:31:04,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:31:04 BasicIcfg [2022-01-10 18:31:04,050 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 18:31:04,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 18:31:04,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 18:31:04,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 18:31:04,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:31:02" (1/4) ... [2022-01-10 18:31:04,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b220cb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:31:04, skipping insertion in model container [2022-01-10 18:31:04,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:31:02" (2/4) ... [2022-01-10 18:31:04,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b220cb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:31:04, skipping insertion in model container [2022-01-10 18:31:04,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:31:03" (3/4) ... [2022-01-10 18:31:04,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b220cb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:31:04, skipping insertion in model container [2022-01-10 18:31:04,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:31:04" (4/4) ... [2022-01-10 18:31:04,058 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.cTransformedIcfg [2022-01-10 18:31:04,063 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 18:31:04,063 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2022-01-10 18:31:04,100 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 18:31:04,106 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 18:31:04,107 INFO L340 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2022-01-10 18:31:04,129 INFO L276 IsEmpty]: Start isEmpty. Operand has 527 states, 489 states have (on average 1.787321063394683) internal successors, (874), 526 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:04,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 18:31:04,133 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:04,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:04,134 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:04,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:04,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1849518782, now seen corresponding path program 1 times [2022-01-10 18:31:04,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:04,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363668160] [2022-01-10 18:31:04,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:04,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:04,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:04,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:04,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363668160] [2022-01-10 18:31:04,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363668160] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:04,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:04,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:31:04,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420353183] [2022-01-10 18:31:04,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:04,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:31:04,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:04,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:31:04,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:04,369 INFO L87 Difference]: Start difference. First operand has 527 states, 489 states have (on average 1.787321063394683) internal successors, (874), 526 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:04,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:04,583 INFO L93 Difference]: Finished difference Result 1271 states and 2084 transitions. [2022-01-10 18:31:04,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:31:04,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-01-10 18:31:04,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:04,594 INFO L225 Difference]: With dead ends: 1271 [2022-01-10 18:31:04,594 INFO L226 Difference]: Without dead ends: 738 [2022-01-10 18:31:04,598 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 [2022-01-10 18:31:04,600 INFO L933 BasicCegarLoop]: 951 mSDtfsCounter, 486 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:04,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [486 Valid, 1489 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:31:04,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2022-01-10 18:31:04,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 463. [2022-01-10 18:31:04,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 432 states have (on average 1.662037037037037) internal successors, (718), 462 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:04,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 718 transitions. [2022-01-10 18:31:04,639 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 718 transitions. Word has length 9 [2022-01-10 18:31:04,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:04,639 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 718 transitions. [2022-01-10 18:31:04,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:04,640 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 718 transitions. [2022-01-10 18:31:04,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 18:31:04,640 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:04,640 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:04,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 18:31:04,641 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:04,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:04,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1876350686, now seen corresponding path program 1 times [2022-01-10 18:31:04,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:04,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720250458] [2022-01-10 18:31:04,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:04,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:04,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:04,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:04,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720250458] [2022-01-10 18:31:04,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720250458] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:04,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:04,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:31:04,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420563315] [2022-01-10 18:31:04,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:04,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:31:04,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:04,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:31:04,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:04,681 INFO L87 Difference]: Start difference. First operand 463 states and 718 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:04,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:04,736 INFO L93 Difference]: Finished difference Result 1149 states and 1764 transitions. [2022-01-10 18:31:04,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:31:04,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-01-10 18:31:04,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:04,740 INFO L225 Difference]: With dead ends: 1149 [2022-01-10 18:31:04,740 INFO L226 Difference]: Without dead ends: 688 [2022-01-10 18:31:04,744 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 [2022-01-10 18:31:04,746 INFO L933 BasicCegarLoop]: 668 mSDtfsCounter, 429 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:04,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 1249 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:04,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-01-10 18:31:04,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 430. [2022-01-10 18:31:04,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 402 states have (on average 1.6417910447761195) internal successors, (660), 429 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:04,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 660 transitions. [2022-01-10 18:31:04,772 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 660 transitions. Word has length 10 [2022-01-10 18:31:04,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:04,772 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 660 transitions. [2022-01-10 18:31:04,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:04,772 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 660 transitions. [2022-01-10 18:31:04,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-10 18:31:04,775 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:04,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:04,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 18:31:04,778 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:04,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:04,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1826130082, now seen corresponding path program 1 times [2022-01-10 18:31:04,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:04,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826281588] [2022-01-10 18:31:04,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:04,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:04,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:04,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:04,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826281588] [2022-01-10 18:31:04,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826281588] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:04,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:04,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:04,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875255056] [2022-01-10 18:31:04,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:04,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:31:04,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:04,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:31:04,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:31:04,830 INFO L87 Difference]: Start difference. First operand 430 states and 660 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:04,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:04,987 INFO L93 Difference]: Finished difference Result 1293 states and 1949 transitions. [2022-01-10 18:31:04,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:31:04,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-01-10 18:31:04,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:04,990 INFO L225 Difference]: With dead ends: 1293 [2022-01-10 18:31:04,990 INFO L226 Difference]: Without dead ends: 876 [2022-01-10 18:31:04,991 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 [2022-01-10 18:31:04,991 INFO L933 BasicCegarLoop]: 1117 mSDtfsCounter, 824 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:04,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [824 Valid, 2161 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:31:04,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2022-01-10 18:31:04,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 385. [2022-01-10 18:31:04,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 362 states have (on average 1.6022099447513811) internal successors, (580), 384 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 580 transitions. [2022-01-10 18:31:05,000 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 580 transitions. Word has length 14 [2022-01-10 18:31:05,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:05,000 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 580 transitions. [2022-01-10 18:31:05,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,000 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 580 transitions. [2022-01-10 18:31:05,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-10 18:31:05,001 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:05,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:05,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 18:31:05,001 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:05,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:05,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1856701769, now seen corresponding path program 1 times [2022-01-10 18:31:05,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:05,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290463588] [2022-01-10 18:31:05,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:05,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:05,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:05,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:05,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:05,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290463588] [2022-01-10 18:31:05,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290463588] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:05,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:05,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:05,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87519830] [2022-01-10 18:31:05,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:05,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:31:05,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:05,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:31:05,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:31:05,042 INFO L87 Difference]: Start difference. First operand 385 states and 580 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:05,092 INFO L93 Difference]: Finished difference Result 1205 states and 1798 transitions. [2022-01-10 18:31:05,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:31:05,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-01-10 18:31:05,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:05,095 INFO L225 Difference]: With dead ends: 1205 [2022-01-10 18:31:05,095 INFO L226 Difference]: Without dead ends: 833 [2022-01-10 18:31:05,095 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 [2022-01-10 18:31:05,096 INFO L933 BasicCegarLoop]: 881 mSDtfsCounter, 809 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 1694 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 [2022-01-10 18:31:05,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [809 Valid, 1694 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:05,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2022-01-10 18:31:05,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 359. [2022-01-10 18:31:05,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 338 states have (on average 1.5798816568047338) internal successors, (534), 358 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 534 transitions. [2022-01-10 18:31:05,104 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 534 transitions. Word has length 14 [2022-01-10 18:31:05,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:05,104 INFO L470 AbstractCegarLoop]: Abstraction has 359 states and 534 transitions. [2022-01-10 18:31:05,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,104 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 534 transitions. [2022-01-10 18:31:05,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 18:31:05,105 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:05,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:05,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 18:31:05,105 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:05,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:05,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1668343003, now seen corresponding path program 1 times [2022-01-10 18:31:05,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:05,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084888578] [2022-01-10 18:31:05,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:05,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:05,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:05,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:05,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084888578] [2022-01-10 18:31:05,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084888578] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:05,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:05,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:05,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017632047] [2022-01-10 18:31:05,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:05,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:31:05,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:05,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:31:05,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:31:05,131 INFO L87 Difference]: Start difference. First operand 359 states and 534 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:05,173 INFO L93 Difference]: Finished difference Result 1060 states and 1566 transitions. [2022-01-10 18:31:05,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:31:05,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2022-01-10 18:31:05,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:05,176 INFO L225 Difference]: With dead ends: 1060 [2022-01-10 18:31:05,176 INFO L226 Difference]: Without dead ends: 829 [2022-01-10 18:31:05,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:05,177 INFO L933 BasicCegarLoop]: 511 mSDtfsCounter, 1195 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:05,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1195 Valid, 1699 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:05,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2022-01-10 18:31:05,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 361. [2022-01-10 18:31:05,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 340 states have (on average 1.576470588235294) internal successors, (536), 360 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 536 transitions. [2022-01-10 18:31:05,185 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 536 transitions. Word has length 15 [2022-01-10 18:31:05,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:05,185 INFO L470 AbstractCegarLoop]: Abstraction has 361 states and 536 transitions. [2022-01-10 18:31:05,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,186 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 536 transitions. [2022-01-10 18:31:05,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 18:31:05,186 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:05,186 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:05,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 18:31:05,186 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:05,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:05,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1646513881, now seen corresponding path program 1 times [2022-01-10 18:31:05,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:05,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77984587] [2022-01-10 18:31:05,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:05,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:05,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:05,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:05,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77984587] [2022-01-10 18:31:05,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77984587] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:05,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:05,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:31:05,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638228508] [2022-01-10 18:31:05,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:05,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:31:05,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:05,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:31:05,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:05,230 INFO L87 Difference]: Start difference. First operand 361 states and 536 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:05,287 INFO L93 Difference]: Finished difference Result 1373 states and 2034 transitions. [2022-01-10 18:31:05,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:31:05,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2022-01-10 18:31:05,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:05,290 INFO L225 Difference]: With dead ends: 1373 [2022-01-10 18:31:05,290 INFO L226 Difference]: Without dead ends: 1040 [2022-01-10 18:31:05,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:05,291 INFO L933 BasicCegarLoop]: 836 mSDtfsCounter, 1578 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1578 SdHoareTripleChecker+Valid, 1966 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:05,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1578 Valid, 1966 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:05,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2022-01-10 18:31:05,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 338. [2022-01-10 18:31:05,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 318 states have (on average 1.5660377358490567) internal successors, (498), 337 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 498 transitions. [2022-01-10 18:31:05,300 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 498 transitions. Word has length 18 [2022-01-10 18:31:05,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:05,300 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 498 transitions. [2022-01-10 18:31:05,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,300 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 498 transitions. [2022-01-10 18:31:05,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 18:31:05,301 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:05,301 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:05,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 18:31:05,301 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:05,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:05,301 INFO L85 PathProgramCache]: Analyzing trace with hash -767782713, now seen corresponding path program 1 times [2022-01-10 18:31:05,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:05,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791413789] [2022-01-10 18:31:05,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:05,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:05,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:05,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:05,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791413789] [2022-01-10 18:31:05,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791413789] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:05,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:05,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:05,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229972941] [2022-01-10 18:31:05,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:05,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:31:05,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:05,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:31:05,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:31:05,327 INFO L87 Difference]: Start difference. First operand 338 states and 498 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:05,369 INFO L93 Difference]: Finished difference Result 1037 states and 1527 transitions. [2022-01-10 18:31:05,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:31:05,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-01-10 18:31:05,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:05,372 INFO L225 Difference]: With dead ends: 1037 [2022-01-10 18:31:05,372 INFO L226 Difference]: Without dead ends: 806 [2022-01-10 18:31:05,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:05,373 INFO L933 BasicCegarLoop]: 816 mSDtfsCounter, 1138 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 1989 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:05,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1138 Valid, 1989 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:05,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2022-01-10 18:31:05,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 340. [2022-01-10 18:31:05,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 320 states have (on average 1.5625) internal successors, (500), 339 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 500 transitions. [2022-01-10 18:31:05,382 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 500 transitions. Word has length 19 [2022-01-10 18:31:05,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:05,383 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 500 transitions. [2022-01-10 18:31:05,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,383 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 500 transitions. [2022-01-10 18:31:05,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 18:31:05,383 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:05,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:05,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 18:31:05,384 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:05,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:05,384 INFO L85 PathProgramCache]: Analyzing trace with hash 468064451, now seen corresponding path program 1 times [2022-01-10 18:31:05,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:05,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842468767] [2022-01-10 18:31:05,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:05,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:05,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:05,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:05,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842468767] [2022-01-10 18:31:05,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842468767] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:05,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:05,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:31:05,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551041769] [2022-01-10 18:31:05,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:05,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:31:05,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:05,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:31:05,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:05,427 INFO L87 Difference]: Start difference. First operand 340 states and 500 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:05,516 INFO L93 Difference]: Finished difference Result 1083 states and 1572 transitions. [2022-01-10 18:31:05,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:31:05,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-01-10 18:31:05,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:05,518 INFO L225 Difference]: With dead ends: 1083 [2022-01-10 18:31:05,518 INFO L226 Difference]: Without dead ends: 773 [2022-01-10 18:31:05,519 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 [2022-01-10 18:31:05,519 INFO L933 BasicCegarLoop]: 938 mSDtfsCounter, 1013 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 1922 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:05,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1013 Valid, 1922 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:31:05,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-01-10 18:31:05,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 308. [2022-01-10 18:31:05,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 292 states have (on average 1.5068493150684932) internal successors, (440), 307 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 440 transitions. [2022-01-10 18:31:05,528 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 440 transitions. Word has length 19 [2022-01-10 18:31:05,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:05,529 INFO L470 AbstractCegarLoop]: Abstraction has 308 states and 440 transitions. [2022-01-10 18:31:05,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,529 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 440 transitions. [2022-01-10 18:31:05,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 18:31:05,529 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:05,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:05,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 18:31:05,530 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:05,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:05,530 INFO L85 PathProgramCache]: Analyzing trace with hash 929095457, now seen corresponding path program 1 times [2022-01-10 18:31:05,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:05,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957822077] [2022-01-10 18:31:05,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:05,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:05,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:05,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:05,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957822077] [2022-01-10 18:31:05,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957822077] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:05,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:05,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:05,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815053408] [2022-01-10 18:31:05,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:05,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:31:05,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:05,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:31:05,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:31:05,558 INFO L87 Difference]: Start difference. First operand 308 states and 440 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:05,586 INFO L93 Difference]: Finished difference Result 735 states and 1057 transitions. [2022-01-10 18:31:05,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:31:05,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-01-10 18:31:05,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:05,588 INFO L225 Difference]: With dead ends: 735 [2022-01-10 18:31:05,588 INFO L226 Difference]: Without dead ends: 520 [2022-01-10 18:31:05,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:05,589 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 307 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 1245 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 [2022-01-10 18:31:05,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 1245 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:05,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-01-10 18:31:05,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 304. [2022-01-10 18:31:05,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 288 states have (on average 1.5) internal successors, (432), 303 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 432 transitions. [2022-01-10 18:31:05,597 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 432 transitions. Word has length 19 [2022-01-10 18:31:05,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:05,598 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 432 transitions. [2022-01-10 18:31:05,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,598 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 432 transitions. [2022-01-10 18:31:05,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-10 18:31:05,598 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:05,598 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] [2022-01-10 18:31:05,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 18:31:05,598 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:05,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:05,599 INFO L85 PathProgramCache]: Analyzing trace with hash 921736251, now seen corresponding path program 1 times [2022-01-10 18:31:05,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:05,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753141648] [2022-01-10 18:31:05,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:05,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:05,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:05,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:05,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753141648] [2022-01-10 18:31:05,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753141648] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:05,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:05,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:31:05,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911664236] [2022-01-10 18:31:05,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:05,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:31:05,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:05,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:31:05,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:05,627 INFO L87 Difference]: Start difference. First operand 304 states and 432 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:05,660 INFO L93 Difference]: Finished difference Result 668 states and 974 transitions. [2022-01-10 18:31:05,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:31:05,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-01-10 18:31:05,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:05,662 INFO L225 Difference]: With dead ends: 668 [2022-01-10 18:31:05,662 INFO L226 Difference]: Without dead ends: 405 [2022-01-10 18:31:05,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:05,663 INFO L933 BasicCegarLoop]: 545 mSDtfsCounter, 304 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:05,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 783 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:05,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-01-10 18:31:05,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 264. [2022-01-10 18:31:05,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 258 states have (on average 1.4806201550387597) internal successors, (382), 263 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 382 transitions. [2022-01-10 18:31:05,671 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 382 transitions. Word has length 22 [2022-01-10 18:31:05,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:05,671 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 382 transitions. [2022-01-10 18:31:05,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,672 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 382 transitions. [2022-01-10 18:31:05,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 18:31:05,672 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:05,672 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] [2022-01-10 18:31:05,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 18:31:05,672 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:05,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:05,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1442226104, now seen corresponding path program 1 times [2022-01-10 18:31:05,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:05,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151280622] [2022-01-10 18:31:05,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:05,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:05,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:05,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:05,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151280622] [2022-01-10 18:31:05,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151280622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:05,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:05,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:31:05,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925847824] [2022-01-10 18:31:05,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:05,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:31:05,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:05,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:31:05,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:05,712 INFO L87 Difference]: Start difference. First operand 264 states and 382 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:05,738 INFO L93 Difference]: Finished difference Result 578 states and 852 transitions. [2022-01-10 18:31:05,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:31:05,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2022-01-10 18:31:05,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:05,740 INFO L225 Difference]: With dead ends: 578 [2022-01-10 18:31:05,740 INFO L226 Difference]: Without dead ends: 402 [2022-01-10 18:31:05,740 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 [2022-01-10 18:31:05,741 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 230 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:05,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 685 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:05,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-01-10 18:31:05,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 258. [2022-01-10 18:31:05,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.4743083003952568) internal successors, (373), 257 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 373 transitions. [2022-01-10 18:31:05,750 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 373 transitions. Word has length 27 [2022-01-10 18:31:05,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:05,750 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 373 transitions. [2022-01-10 18:31:05,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,751 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 373 transitions. [2022-01-10 18:31:05,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 18:31:05,753 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:05,753 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] [2022-01-10 18:31:05,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 18:31:05,753 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:05,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:05,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1857297569, now seen corresponding path program 1 times [2022-01-10 18:31:05,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:05,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326164251] [2022-01-10 18:31:05,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:05,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:05,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:05,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:05,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326164251] [2022-01-10 18:31:05,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326164251] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:05,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:05,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:05,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750698276] [2022-01-10 18:31:05,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:05,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:31:05,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:05,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:31:05,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:31:05,814 INFO L87 Difference]: Start difference. First operand 258 states and 373 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:05,856 INFO L93 Difference]: Finished difference Result 689 states and 1020 transitions. [2022-01-10 18:31:05,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:31:05,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-01-10 18:31:05,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:05,859 INFO L225 Difference]: With dead ends: 689 [2022-01-10 18:31:05,859 INFO L226 Difference]: Without dead ends: 519 [2022-01-10 18:31:05,859 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 [2022-01-10 18:31:05,860 INFO L933 BasicCegarLoop]: 548 mSDtfsCounter, 447 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:05,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [447 Valid, 1070 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:05,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-01-10 18:31:05,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 253. [2022-01-10 18:31:05,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 249 states have (on average 1.465863453815261) internal successors, (365), 252 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 365 transitions. [2022-01-10 18:31:05,870 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 365 transitions. Word has length 33 [2022-01-10 18:31:05,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:05,870 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 365 transitions. [2022-01-10 18:31:05,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,871 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 365 transitions. [2022-01-10 18:31:05,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 18:31:05,871 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:05,872 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] [2022-01-10 18:31:05,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 18:31:05,872 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:05,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:05,872 INFO L85 PathProgramCache]: Analyzing trace with hash -2132183986, now seen corresponding path program 1 times [2022-01-10 18:31:05,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:05,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056640383] [2022-01-10 18:31:05,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:05,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:05,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:05,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:05,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056640383] [2022-01-10 18:31:05,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056640383] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:05,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:05,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:31:05,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624207682] [2022-01-10 18:31:05,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:05,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:31:05,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:05,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:31:05,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:05,936 INFO L87 Difference]: Start difference. First operand 253 states and 365 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:05,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:05,993 INFO L93 Difference]: Finished difference Result 415 states and 607 transitions. [2022-01-10 18:31:05,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:31:05,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2022-01-10 18:31:05,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:05,995 INFO L225 Difference]: With dead ends: 415 [2022-01-10 18:31:05,995 INFO L226 Difference]: Without dead ends: 250 [2022-01-10 18:31:05,995 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 [2022-01-10 18:31:05,996 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 436 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:05,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [436 Valid, 578 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:05,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-01-10 18:31:06,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 249. [2022-01-10 18:31:06,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 246 states have (on average 1.4552845528455285) internal successors, (358), 248 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:06,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 358 transitions. [2022-01-10 18:31:06,006 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 358 transitions. Word has length 40 [2022-01-10 18:31:06,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:06,007 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 358 transitions. [2022-01-10 18:31:06,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:06,007 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 358 transitions. [2022-01-10 18:31:06,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-10 18:31:06,007 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:06,007 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] [2022-01-10 18:31:06,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 18:31:06,008 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:06,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:06,008 INFO L85 PathProgramCache]: Analyzing trace with hash -680731746, now seen corresponding path program 1 times [2022-01-10 18:31:06,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:06,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123501442] [2022-01-10 18:31:06,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:06,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:06,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:06,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:06,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123501442] [2022-01-10 18:31:06,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123501442] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:06,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:06,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:31:06,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246324642] [2022-01-10 18:31:06,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:06,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:31:06,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:06,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:31:06,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:06,075 INFO L87 Difference]: Start difference. First operand 249 states and 358 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:06,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:06,089 INFO L93 Difference]: Finished difference Result 459 states and 668 transitions. [2022-01-10 18:31:06,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:31:06,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2022-01-10 18:31:06,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:06,092 INFO L225 Difference]: With dead ends: 459 [2022-01-10 18:31:06,092 INFO L226 Difference]: Without dead ends: 298 [2022-01-10 18:31:06,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:06,095 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 232 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:06,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 593 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:06,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-01-10 18:31:06,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 245. [2022-01-10 18:31:06,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 243 states have (on average 1.4526748971193415) internal successors, (353), 244 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:06,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 353 transitions. [2022-01-10 18:31:06,107 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 353 transitions. Word has length 48 [2022-01-10 18:31:06,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:06,107 INFO L470 AbstractCegarLoop]: Abstraction has 245 states and 353 transitions. [2022-01-10 18:31:06,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:06,107 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 353 transitions. [2022-01-10 18:31:06,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 18:31:06,108 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:06,108 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] [2022-01-10 18:31:06,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 18:31:06,109 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:06,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:06,109 INFO L85 PathProgramCache]: Analyzing trace with hash 500866980, now seen corresponding path program 1 times [2022-01-10 18:31:06,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:06,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575556143] [2022-01-10 18:31:06,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:06,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:06,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:06,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:06,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575556143] [2022-01-10 18:31:06,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575556143] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:06,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:06,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:06,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997371077] [2022-01-10 18:31:06,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:06,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:31:06,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:06,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:31:06,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:31:06,207 INFO L87 Difference]: Start difference. First operand 245 states and 353 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 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) [2022-01-10 18:31:06,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:06,516 INFO L93 Difference]: Finished difference Result 684 states and 1000 transitions. [2022-01-10 18:31:06,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:31:06,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 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 [2022-01-10 18:31:06,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:06,518 INFO L225 Difference]: With dead ends: 684 [2022-01-10 18:31:06,519 INFO L226 Difference]: Without dead ends: 527 [2022-01-10 18:31:06,519 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 [2022-01-10 18:31:06,519 INFO L933 BasicCegarLoop]: 505 mSDtfsCounter, 633 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:06,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [633 Valid, 1282 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 18:31:06,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2022-01-10 18:31:06,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 285. [2022-01-10 18:31:06,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 284 states have (on average 1.4507042253521127) internal successors, (412), 284 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:06,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 412 transitions. [2022-01-10 18:31:06,561 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 412 transitions. Word has length 51 [2022-01-10 18:31:06,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:06,576 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 412 transitions. [2022-01-10 18:31:06,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 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) [2022-01-10 18:31:06,576 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 412 transitions. [2022-01-10 18:31:06,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-10 18:31:06,577 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:06,577 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] [2022-01-10 18:31:06,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 18:31:06,577 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:06,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:06,577 INFO L85 PathProgramCache]: Analyzing trace with hash 222451843, now seen corresponding path program 1 times [2022-01-10 18:31:06,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:06,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577389635] [2022-01-10 18:31:06,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:06,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:06,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:06,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:06,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577389635] [2022-01-10 18:31:06,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577389635] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:06,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:06,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:31:06,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784926731] [2022-01-10 18:31:06,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:06,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:31:06,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:06,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:31:06,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:06,701 INFO L87 Difference]: Start difference. First operand 285 states and 412 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:06,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:06,780 INFO L93 Difference]: Finished difference Result 664 states and 972 transitions. [2022-01-10 18:31:06,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:31:06,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-01-10 18:31:06,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:06,782 INFO L225 Difference]: With dead ends: 664 [2022-01-10 18:31:06,782 INFO L226 Difference]: Without dead ends: 467 [2022-01-10 18:31:06,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:06,783 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 187 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 649 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 [2022-01-10 18:31:06,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 649 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:06,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-01-10 18:31:06,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 330. [2022-01-10 18:31:06,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 329 states have (on average 1.4376899696048633) internal successors, (473), 329 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:06,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 473 transitions. [2022-01-10 18:31:06,817 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 473 transitions. Word has length 69 [2022-01-10 18:31:06,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:06,817 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 473 transitions. [2022-01-10 18:31:06,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:06,818 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 473 transitions. [2022-01-10 18:31:06,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-10 18:31:06,818 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:06,818 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] [2022-01-10 18:31:06,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 18:31:06,819 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:06,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:06,819 INFO L85 PathProgramCache]: Analyzing trace with hash 955025126, now seen corresponding path program 1 times [2022-01-10 18:31:06,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:06,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608753728] [2022-01-10 18:31:06,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:06,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:06,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:06,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:06,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608753728] [2022-01-10 18:31:06,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608753728] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:06,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:06,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:31:06,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352069355] [2022-01-10 18:31:06,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:06,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:31:06,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:06,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:31:06,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:06,868 INFO L87 Difference]: Start difference. First operand 330 states and 473 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:06,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:06,937 INFO L93 Difference]: Finished difference Result 788 states and 1141 transitions. [2022-01-10 18:31:06,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:31:06,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-01-10 18:31:06,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:06,939 INFO L225 Difference]: With dead ends: 788 [2022-01-10 18:31:06,939 INFO L226 Difference]: Without dead ends: 546 [2022-01-10 18:31:06,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:06,940 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 192 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 668 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 [2022-01-10 18:31:06,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 668 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:06,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-01-10 18:31:06,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 396. [2022-01-10 18:31:06,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 395 states have (on average 1.4253164556962026) internal successors, (563), 395 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:06,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 563 transitions. [2022-01-10 18:31:06,981 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 563 transitions. Word has length 70 [2022-01-10 18:31:06,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:06,981 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 563 transitions. [2022-01-10 18:31:06,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:06,981 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 563 transitions. [2022-01-10 18:31:06,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-10 18:31:06,982 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:06,982 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] [2022-01-10 18:31:06,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 18:31:06,982 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:06,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:06,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1048252312, now seen corresponding path program 1 times [2022-01-10 18:31:06,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:06,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848094242] [2022-01-10 18:31:06,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:06,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:07,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:07,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:07,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848094242] [2022-01-10 18:31:07,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848094242] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:07,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:07,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:31:07,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543081768] [2022-01-10 18:31:07,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:07,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:31:07,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:07,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:31:07,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:07,025 INFO L87 Difference]: Start difference. First operand 396 states and 563 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:07,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:07,095 INFO L93 Difference]: Finished difference Result 960 states and 1377 transitions. [2022-01-10 18:31:07,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:31:07,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-01-10 18:31:07,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:07,097 INFO L225 Difference]: With dead ends: 960 [2022-01-10 18:31:07,097 INFO L226 Difference]: Without dead ends: 652 [2022-01-10 18:31:07,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:07,098 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 198 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 688 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 [2022-01-10 18:31:07,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 688 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:07,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2022-01-10 18:31:07,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 474. [2022-01-10 18:31:07,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 473 states have (on average 1.4186046511627908) internal successors, (671), 473 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:07,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 671 transitions. [2022-01-10 18:31:07,142 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 671 transitions. Word has length 71 [2022-01-10 18:31:07,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:07,142 INFO L470 AbstractCegarLoop]: Abstraction has 474 states and 671 transitions. [2022-01-10 18:31:07,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:07,142 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 671 transitions. [2022-01-10 18:31:07,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-10 18:31:07,143 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:07,143 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] [2022-01-10 18:31:07,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 18:31:07,143 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:07,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:07,144 INFO L85 PathProgramCache]: Analyzing trace with hash -836901399, now seen corresponding path program 1 times [2022-01-10 18:31:07,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:07,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450326946] [2022-01-10 18:31:07,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:07,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:07,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:07,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:07,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450326946] [2022-01-10 18:31:07,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450326946] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:07,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:07,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:31:07,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314977641] [2022-01-10 18:31:07,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:07,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:31:07,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:07,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:31:07,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:07,180 INFO L87 Difference]: Start difference. First operand 474 states and 671 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:07,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:07,238 INFO L93 Difference]: Finished difference Result 862 states and 1224 transitions. [2022-01-10 18:31:07,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:31:07,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-01-10 18:31:07,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:07,240 INFO L225 Difference]: With dead ends: 862 [2022-01-10 18:31:07,240 INFO L226 Difference]: Without dead ends: 450 [2022-01-10 18:31:07,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:07,241 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 0 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:07,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 656 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:07,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-01-10 18:31:07,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2022-01-10 18:31:07,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 449 states have (on average 1.4120267260579065) internal successors, (634), 449 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:07,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 634 transitions. [2022-01-10 18:31:07,274 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 634 transitions. Word has length 71 [2022-01-10 18:31:07,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:07,274 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 634 transitions. [2022-01-10 18:31:07,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:07,274 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 634 transitions. [2022-01-10 18:31:07,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-10 18:31:07,275 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:07,275 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] [2022-01-10 18:31:07,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 18:31:07,275 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:07,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:07,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1438794684, now seen corresponding path program 1 times [2022-01-10 18:31:07,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:07,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128347945] [2022-01-10 18:31:07,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:07,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:07,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:07,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:07,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128347945] [2022-01-10 18:31:07,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128347945] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:07,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:07,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:31:07,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480444511] [2022-01-10 18:31:07,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:07,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:31:07,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:07,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:31:07,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:07,317 INFO L87 Difference]: Start difference. First operand 450 states and 634 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:07,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:07,415 INFO L93 Difference]: Finished difference Result 1104 states and 1544 transitions. [2022-01-10 18:31:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:31:07,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-01-10 18:31:07,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:07,417 INFO L225 Difference]: With dead ends: 1104 [2022-01-10 18:31:07,417 INFO L226 Difference]: Without dead ends: 742 [2022-01-10 18:31:07,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:07,418 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 285 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:07,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 593 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:07,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2022-01-10 18:31:07,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 450. [2022-01-10 18:31:07,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 449 states have (on average 1.3919821826280623) internal successors, (625), 449 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:07,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 625 transitions. [2022-01-10 18:31:07,452 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 625 transitions. Word has length 71 [2022-01-10 18:31:07,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:07,452 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 625 transitions. [2022-01-10 18:31:07,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:07,452 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 625 transitions. [2022-01-10 18:31:07,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-10 18:31:07,453 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:07,453 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] [2022-01-10 18:31:07,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 18:31:07,453 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:07,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:07,453 INFO L85 PathProgramCache]: Analyzing trace with hash -512925208, now seen corresponding path program 1 times [2022-01-10 18:31:07,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:07,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935009109] [2022-01-10 18:31:07,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:07,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:07,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:07,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:07,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935009109] [2022-01-10 18:31:07,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935009109] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:07,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:07,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:31:07,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626445721] [2022-01-10 18:31:07,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:07,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:31:07,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:07,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:31:07,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:07,496 INFO L87 Difference]: Start difference. First operand 450 states and 625 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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) [2022-01-10 18:31:07,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:07,601 INFO L93 Difference]: Finished difference Result 1180 states and 1634 transitions. [2022-01-10 18:31:07,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:31:07,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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 [2022-01-10 18:31:07,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:07,604 INFO L225 Difference]: With dead ends: 1180 [2022-01-10 18:31:07,604 INFO L226 Difference]: Without dead ends: 818 [2022-01-10 18:31:07,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:07,605 INFO L933 BasicCegarLoop]: 519 mSDtfsCounter, 232 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:07,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 790 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:07,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2022-01-10 18:31:07,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 450. [2022-01-10 18:31:07,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 449 states have (on average 1.3897550111358574) internal successors, (624), 449 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:07,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 624 transitions. [2022-01-10 18:31:07,663 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 624 transitions. Word has length 72 [2022-01-10 18:31:07,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:07,663 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 624 transitions. [2022-01-10 18:31:07,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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) [2022-01-10 18:31:07,665 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 624 transitions. [2022-01-10 18:31:07,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-10 18:31:07,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:07,666 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] [2022-01-10 18:31:07,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 18:31:07,666 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:07,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:07,666 INFO L85 PathProgramCache]: Analyzing trace with hash 940172024, now seen corresponding path program 1 times [2022-01-10 18:31:07,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:07,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594165581] [2022-01-10 18:31:07,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:07,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:07,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:07,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:07,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594165581] [2022-01-10 18:31:07,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594165581] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:07,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:07,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:07,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938568635] [2022-01-10 18:31:07,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:07,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:31:07,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:07,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:31:07,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:31:07,721 INFO L87 Difference]: Start difference. First operand 450 states and 624 transitions. Second operand has 4 states, 4 states have (on average 18.25) 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) [2022-01-10 18:31:07,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:07,823 INFO L93 Difference]: Finished difference Result 1018 states and 1410 transitions. [2022-01-10 18:31:07,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:31:07,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) 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 [2022-01-10 18:31:07,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:07,826 INFO L225 Difference]: With dead ends: 1018 [2022-01-10 18:31:07,826 INFO L226 Difference]: Without dead ends: 1016 [2022-01-10 18:31:07,827 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 [2022-01-10 18:31:07,827 INFO L933 BasicCegarLoop]: 534 mSDtfsCounter, 362 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:07,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 1372 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:07,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2022-01-10 18:31:07,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 452. [2022-01-10 18:31:07,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 451 states have (on average 1.3880266075388026) internal successors, (626), 451 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:07,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 626 transitions. [2022-01-10 18:31:07,865 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 626 transitions. Word has length 73 [2022-01-10 18:31:07,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:07,865 INFO L470 AbstractCegarLoop]: Abstraction has 452 states and 626 transitions. [2022-01-10 18:31:07,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) 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) [2022-01-10 18:31:07,865 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 626 transitions. [2022-01-10 18:31:07,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-10 18:31:07,866 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:07,866 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] [2022-01-10 18:31:07,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 18:31:07,866 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:07,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:07,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1070050363, now seen corresponding path program 1 times [2022-01-10 18:31:07,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:07,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350453508] [2022-01-10 18:31:07,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:07,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:07,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:07,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:07,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:07,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350453508] [2022-01-10 18:31:07,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350453508] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:07,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:07,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 18:31:07,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184569660] [2022-01-10 18:31:07,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:07,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 18:31:07,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:07,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 18:31:07,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 18:31:07,946 INFO L87 Difference]: Start difference. First operand 452 states and 626 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 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) [2022-01-10 18:31:08,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:08,241 INFO L93 Difference]: Finished difference Result 1305 states and 1798 transitions. [2022-01-10 18:31:08,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 18:31:08,241 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 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 [2022-01-10 18:31:08,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:08,244 INFO L225 Difference]: With dead ends: 1305 [2022-01-10 18:31:08,244 INFO L226 Difference]: Without dead ends: 941 [2022-01-10 18:31:08,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-01-10 18:31:08,245 INFO L933 BasicCegarLoop]: 488 mSDtfsCounter, 626 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:08,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [626 Valid, 2729 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:31:08,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2022-01-10 18:31:08,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 472. [2022-01-10 18:31:08,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.3885350318471337) internal successors, (654), 471 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:08,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 654 transitions. [2022-01-10 18:31:08,285 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 654 transitions. Word has length 76 [2022-01-10 18:31:08,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:08,285 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 654 transitions. [2022-01-10 18:31:08,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 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) [2022-01-10 18:31:08,286 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 654 transitions. [2022-01-10 18:31:08,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-10 18:31:08,286 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:08,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:08,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 18:31:08,287 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:08,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:08,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1041421212, now seen corresponding path program 1 times [2022-01-10 18:31:08,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:08,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877300422] [2022-01-10 18:31:08,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:08,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:08,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:08,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:08,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877300422] [2022-01-10 18:31:08,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877300422] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:08,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:08,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:08,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346770102] [2022-01-10 18:31:08,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:08,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:31:08,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:08,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:31:08,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:31:08,349 INFO L87 Difference]: Start difference. First operand 472 states and 654 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) [2022-01-10 18:31:08,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:08,481 INFO L93 Difference]: Finished difference Result 1495 states and 2056 transitions. [2022-01-10 18:31:08,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:31:08,481 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 [2022-01-10 18:31:08,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:08,484 INFO L225 Difference]: With dead ends: 1495 [2022-01-10 18:31:08,484 INFO L226 Difference]: Without dead ends: 1025 [2022-01-10 18:31:08,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:31:08,485 INFO L933 BasicCegarLoop]: 552 mSDtfsCounter, 430 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:08,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 943 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:31:08,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2022-01-10 18:31:08,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 468. [2022-01-10 18:31:08,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 467 states have (on average 1.3533190578158458) internal successors, (632), 467 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:08,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 632 transitions. [2022-01-10 18:31:08,529 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 632 transitions. Word has length 76 [2022-01-10 18:31:08,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:08,529 INFO L470 AbstractCegarLoop]: Abstraction has 468 states and 632 transitions. [2022-01-10 18:31:08,529 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) [2022-01-10 18:31:08,529 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 632 transitions. [2022-01-10 18:31:08,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 18:31:08,530 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:08,530 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] [2022-01-10 18:31:08,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 18:31:08,530 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:08,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:08,531 INFO L85 PathProgramCache]: Analyzing trace with hash 661861090, now seen corresponding path program 1 times [2022-01-10 18:31:08,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:08,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490731679] [2022-01-10 18:31:08,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:08,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:08,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:08,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:08,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490731679] [2022-01-10 18:31:08,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490731679] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:08,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:08,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:31:08,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385782236] [2022-01-10 18:31:08,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:08,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:31:08,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:08,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:31:08,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:08,588 INFO L87 Difference]: Start difference. First operand 468 states and 632 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:08,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:08,719 INFO L93 Difference]: Finished difference Result 1379 states and 1865 transitions. [2022-01-10 18:31:08,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:31:08,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-01-10 18:31:08,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:08,722 INFO L225 Difference]: With dead ends: 1379 [2022-01-10 18:31:08,722 INFO L226 Difference]: Without dead ends: 921 [2022-01-10 18:31:08,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:08,723 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 294 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:08,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [294 Valid, 598 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:08,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-01-10 18:31:08,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 472. [2022-01-10 18:31:08,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.3503184713375795) internal successors, (636), 471 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:08,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 636 transitions. [2022-01-10 18:31:08,776 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 636 transitions. Word has length 82 [2022-01-10 18:31:08,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:08,776 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 636 transitions. [2022-01-10 18:31:08,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:08,776 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 636 transitions. [2022-01-10 18:31:08,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 18:31:08,777 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:08,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:08,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 18:31:08,777 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:08,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:08,778 INFO L85 PathProgramCache]: Analyzing trace with hash -402635489, now seen corresponding path program 1 times [2022-01-10 18:31:08,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:08,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242646096] [2022-01-10 18:31:08,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:08,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:08,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:08,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:08,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242646096] [2022-01-10 18:31:08,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242646096] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:08,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:08,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:08,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086567192] [2022-01-10 18:31:08,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:08,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:31:08,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:08,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:31:08,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:31:08,817 INFO L87 Difference]: Start difference. First operand 472 states and 636 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:08,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:08,925 INFO L93 Difference]: Finished difference Result 1321 states and 1784 transitions. [2022-01-10 18:31:08,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:31:08,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2022-01-10 18:31:08,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:08,928 INFO L225 Difference]: With dead ends: 1321 [2022-01-10 18:31:08,928 INFO L226 Difference]: Without dead ends: 861 [2022-01-10 18:31:08,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:08,929 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 220 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:08,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 904 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:08,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2022-01-10 18:31:08,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 472. [2022-01-10 18:31:08,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.3481953290870488) internal successors, (635), 471 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:08,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 635 transitions. [2022-01-10 18:31:08,975 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 635 transitions. Word has length 104 [2022-01-10 18:31:08,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:08,975 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 635 transitions. [2022-01-10 18:31:08,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:08,975 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 635 transitions. [2022-01-10 18:31:08,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-10 18:31:08,976 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:08,976 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] [2022-01-10 18:31:08,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 18:31:08,976 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:08,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:08,976 INFO L85 PathProgramCache]: Analyzing trace with hash -41699399, now seen corresponding path program 1 times [2022-01-10 18:31:08,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:08,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676692609] [2022-01-10 18:31:08,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:08,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:09,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 18:31:09,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:09,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676692609] [2022-01-10 18:31:09,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676692609] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:09,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:09,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:09,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054213611] [2022-01-10 18:31:09,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:09,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:31:09,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:09,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:31:09,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:31:09,012 INFO L87 Difference]: Start difference. First operand 472 states and 635 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 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) [2022-01-10 18:31:09,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:09,133 INFO L93 Difference]: Finished difference Result 1305 states and 1764 transitions. [2022-01-10 18:31:09,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:31:09,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 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 [2022-01-10 18:31:09,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:09,136 INFO L225 Difference]: With dead ends: 1305 [2022-01-10 18:31:09,136 INFO L226 Difference]: Without dead ends: 859 [2022-01-10 18:31:09,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:09,137 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 219 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:09,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 904 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:09,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2022-01-10 18:31:09,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 472. [2022-01-10 18:31:09,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.346072186836518) internal successors, (634), 471 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:09,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 634 transitions. [2022-01-10 18:31:09,186 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 634 transitions. Word has length 107 [2022-01-10 18:31:09,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:09,186 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 634 transitions. [2022-01-10 18:31:09,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 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) [2022-01-10 18:31:09,186 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 634 transitions. [2022-01-10 18:31:09,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 18:31:09,187 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:09,187 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:09,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 18:31:09,187 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:09,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:09,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1640341709, now seen corresponding path program 1 times [2022-01-10 18:31:09,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:09,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774326651] [2022-01-10 18:31:09,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:09,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:09,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 18:31:09,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:09,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774326651] [2022-01-10 18:31:09,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774326651] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:09,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:09,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:09,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247514129] [2022-01-10 18:31:09,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:09,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:31:09,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:09,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:31:09,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:31:09,230 INFO L87 Difference]: Start difference. First operand 472 states and 634 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:09,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:09,331 INFO L93 Difference]: Finished difference Result 1287 states and 1742 transitions. [2022-01-10 18:31:09,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:31:09,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 18:31:09,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:09,334 INFO L225 Difference]: With dead ends: 1287 [2022-01-10 18:31:09,334 INFO L226 Difference]: Without dead ends: 857 [2022-01-10 18:31:09,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:09,335 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 218 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:09,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 904 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:09,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2022-01-10 18:31:09,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 472. [2022-01-10 18:31:09,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.3439490445859872) internal successors, (633), 471 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:09,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 633 transitions. [2022-01-10 18:31:09,384 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 633 transitions. Word has length 110 [2022-01-10 18:31:09,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:09,384 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 633 transitions. [2022-01-10 18:31:09,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:09,384 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 633 transitions. [2022-01-10 18:31:09,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 18:31:09,385 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:09,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:09,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 18:31:09,385 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:09,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:09,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1627402434, now seen corresponding path program 1 times [2022-01-10 18:31:09,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:09,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288825030] [2022-01-10 18:31:09,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:09,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:09,422 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 18:31:09,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:09,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288825030] [2022-01-10 18:31:09,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288825030] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:09,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:09,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:31:09,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895516227] [2022-01-10 18:31:09,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:09,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:31:09,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:09,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:31:09,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:09,423 INFO L87 Difference]: Start difference. First operand 472 states and 633 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:09,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:09,510 INFO L93 Difference]: Finished difference Result 858 states and 1157 transitions. [2022-01-10 18:31:09,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:31:09,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2022-01-10 18:31:09,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:09,512 INFO L225 Difference]: With dead ends: 858 [2022-01-10 18:31:09,512 INFO L226 Difference]: Without dead ends: 442 [2022-01-10 18:31:09,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:09,513 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 233 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:09,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 313 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:09,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-01-10 18:31:09,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2022-01-10 18:31:09,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 441 states have (on average 1.3401360544217686) internal successors, (591), 441 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:09,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 591 transitions. [2022-01-10 18:31:09,560 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 591 transitions. Word has length 113 [2022-01-10 18:31:09,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:09,560 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 591 transitions. [2022-01-10 18:31:09,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:09,561 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 591 transitions. [2022-01-10 18:31:09,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-10 18:31:09,561 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:09,562 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] [2022-01-10 18:31:09,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 18:31:09,562 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:09,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:09,562 INFO L85 PathProgramCache]: Analyzing trace with hash -714662677, now seen corresponding path program 1 times [2022-01-10 18:31:09,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:09,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044680286] [2022-01-10 18:31:09,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:09,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:09,619 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 18:31:09,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:09,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044680286] [2022-01-10 18:31:09,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044680286] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:09,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:09,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:31:09,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311090929] [2022-01-10 18:31:09,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:09,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:31:09,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:09,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:31:09,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:31:09,620 INFO L87 Difference]: Start difference. First operand 442 states and 591 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:09,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:09,679 INFO L93 Difference]: Finished difference Result 839 states and 1131 transitions. [2022-01-10 18:31:09,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 18:31:09,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-01-10 18:31:09,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:09,681 INFO L225 Difference]: With dead ends: 839 [2022-01-10 18:31:09,681 INFO L226 Difference]: Without dead ends: 442 [2022-01-10 18:31:09,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:31:09,682 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 323 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:09,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 331 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:09,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-01-10 18:31:09,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2022-01-10 18:31:09,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 441 states have (on average 1.3378684807256236) internal successors, (590), 441 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:09,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 590 transitions. [2022-01-10 18:31:09,731 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 590 transitions. Word has length 115 [2022-01-10 18:31:09,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:09,731 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 590 transitions. [2022-01-10 18:31:09,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:09,731 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 590 transitions. [2022-01-10 18:31:09,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 18:31:09,732 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:09,732 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] [2022-01-10 18:31:09,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 18:31:09,732 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:09,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:09,733 INFO L85 PathProgramCache]: Analyzing trace with hash -492369166, now seen corresponding path program 1 times [2022-01-10 18:31:09,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:09,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476583312] [2022-01-10 18:31:09,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:09,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:09,786 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 18:31:09,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:09,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476583312] [2022-01-10 18:31:09,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476583312] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:09,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:09,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:09,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478660521] [2022-01-10 18:31:09,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:09,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:31:09,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:09,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:31:09,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:31:09,788 INFO L87 Difference]: Start difference. First operand 442 states and 590 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:09,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:09,847 INFO L93 Difference]: Finished difference Result 827 states and 1113 transitions. [2022-01-10 18:31:09,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:31:09,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2022-01-10 18:31:09,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:09,848 INFO L225 Difference]: With dead ends: 827 [2022-01-10 18:31:09,848 INFO L226 Difference]: Without dead ends: 442 [2022-01-10 18:31:09,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:09,849 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 1 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:09,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 823 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:09,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-01-10 18:31:09,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2022-01-10 18:31:09,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 441 states have (on average 1.3356009070294785) internal successors, (589), 441 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:09,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 589 transitions. [2022-01-10 18:31:09,895 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 589 transitions. Word has length 116 [2022-01-10 18:31:09,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:09,896 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 589 transitions. [2022-01-10 18:31:09,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:09,896 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 589 transitions. [2022-01-10 18:31:09,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-10 18:31:09,897 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:09,897 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] [2022-01-10 18:31:09,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 18:31:09,897 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:09,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:09,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1656754174, now seen corresponding path program 1 times [2022-01-10 18:31:09,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:09,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580501218] [2022-01-10 18:31:09,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:09,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:10,045 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 18:31:10,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:10,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580501218] [2022-01-10 18:31:10,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580501218] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 18:31:10,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393326345] [2022-01-10 18:31:10,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:10,046 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:31:10,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:31:10,048 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) [2022-01-10 18:31:10,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 18:31:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:10,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-10 18:31:10,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 18:31:10,488 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 18:31:10,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 18:31:10,693 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 18:31:10,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393326345] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 18:31:10,694 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 18:31:10,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2022-01-10 18:31:10,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700358651] [2022-01-10 18:31:10,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 18:31:10,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-10 18:31:10,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:10,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-10 18:31:10,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-01-10 18:31:10,695 INFO L87 Difference]: Start difference. First operand 442 states and 589 transitions. Second operand has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:11,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:11,270 INFO L93 Difference]: Finished difference Result 2048 states and 2759 transitions. [2022-01-10 18:31:11,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-10 18:31:11,270 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 0 states have call successors, (0), 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 [2022-01-10 18:31:11,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:11,275 INFO L225 Difference]: With dead ends: 2048 [2022-01-10 18:31:11,275 INFO L226 Difference]: Without dead ends: 1668 [2022-01-10 18:31:11,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 232 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=597, Unknown=0, NotChecked=0, Total=756 [2022-01-10 18:31:11,277 INFO L933 BasicCegarLoop]: 596 mSDtfsCounter, 1349 mSDsluCounter, 3056 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 3652 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:11,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1349 Valid, 3652 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:31:11,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2022-01-10 18:31:11,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 741. [2022-01-10 18:31:11,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 740 states have (on average 1.3256756756756756) internal successors, (981), 740 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:11,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 981 transitions. [2022-01-10 18:31:11,389 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 981 transitions. Word has length 119 [2022-01-10 18:31:11,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:11,389 INFO L470 AbstractCegarLoop]: Abstraction has 741 states and 981 transitions. [2022-01-10 18:31:11,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:11,389 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 981 transitions. [2022-01-10 18:31:11,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-10 18:31:11,390 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:11,390 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] [2022-01-10 18:31:11,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 18:31:11,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-01-10 18:31:11,604 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:11,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:11,604 INFO L85 PathProgramCache]: Analyzing trace with hash 287091832, now seen corresponding path program 1 times [2022-01-10 18:31:11,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:11,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203303632] [2022-01-10 18:31:11,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:11,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:11,728 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 18:31:11,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:11,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203303632] [2022-01-10 18:31:11,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203303632] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 18:31:11,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633200840] [2022-01-10 18:31:11,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:11,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:31:11,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:31:11,731 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 18:31:11,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 18:31:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:11,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 1163 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-10 18:31:11,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 18:31:12,173 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 18:31:12,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 18:31:12,392 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 18:31:12,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633200840] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 18:31:12,393 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 18:31:12,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2022-01-10 18:31:12,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466010965] [2022-01-10 18:31:12,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 18:31:12,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-10 18:31:12,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:12,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-10 18:31:12,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-01-10 18:31:12,394 INFO L87 Difference]: Start difference. First operand 741 states and 981 transitions. Second operand has 14 states, 14 states have (on average 9.214285714285714) internal successors, (129), 14 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:12,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:12,884 INFO L93 Difference]: Finished difference Result 2339 states and 3127 transitions. [2022-01-10 18:31:12,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-10 18:31:12,884 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.214285714285714) internal successors, (129), 14 states have internal predecessors, (129), 0 states have call successors, (0), 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 [2022-01-10 18:31:12,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:12,889 INFO L225 Difference]: With dead ends: 2339 [2022-01-10 18:31:12,889 INFO L226 Difference]: Without dead ends: 1959 [2022-01-10 18:31:12,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 231 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=630, Unknown=0, NotChecked=0, Total=812 [2022-01-10 18:31:12,890 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 1551 mSDsluCounter, 3963 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 4470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:12,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1551 Valid, 4470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 18:31:12,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1959 states. [2022-01-10 18:31:13,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1959 to 1327. [2022-01-10 18:31:13,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 1326 states have (on average 1.3205128205128205) internal successors, (1751), 1326 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:13,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1751 transitions. [2022-01-10 18:31:13,033 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1751 transitions. Word has length 119 [2022-01-10 18:31:13,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:13,033 INFO L470 AbstractCegarLoop]: Abstraction has 1327 states and 1751 transitions. [2022-01-10 18:31:13,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.214285714285714) internal successors, (129), 14 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:13,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1751 transitions. [2022-01-10 18:31:13,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 18:31:13,035 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:13,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:13,067 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-10 18:31:13,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-01-10 18:31:13,254 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:13,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:13,255 INFO L85 PathProgramCache]: Analyzing trace with hash 2116526161, now seen corresponding path program 1 times [2022-01-10 18:31:13,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:13,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840017494] [2022-01-10 18:31:13,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:13,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:13,288 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 18:31:13,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:13,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840017494] [2022-01-10 18:31:13,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840017494] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:13,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:13,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:31:13,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89296627] [2022-01-10 18:31:13,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:13,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:31:13,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:13,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:31:13,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:13,290 INFO L87 Difference]: Start difference. First operand 1327 states and 1751 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:13,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:13,393 INFO L93 Difference]: Finished difference Result 2023 states and 2680 transitions. [2022-01-10 18:31:13,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:31:13,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2022-01-10 18:31:13,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:13,395 INFO L225 Difference]: With dead ends: 2023 [2022-01-10 18:31:13,395 INFO L226 Difference]: Without dead ends: 699 [2022-01-10 18:31:13,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:13,397 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 132 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:13,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 469 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:13,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-01-10 18:31:13,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 691. [2022-01-10 18:31:13,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 690 states have (on average 1.3318840579710145) internal successors, (919), 690 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:13,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 919 transitions. [2022-01-10 18:31:13,488 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 919 transitions. Word has length 120 [2022-01-10 18:31:13,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:13,488 INFO L470 AbstractCegarLoop]: Abstraction has 691 states and 919 transitions. [2022-01-10 18:31:13,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:13,488 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 919 transitions. [2022-01-10 18:31:13,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-10 18:31:13,489 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:13,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:13,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 18:31:13,490 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:13,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:13,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1920275178, now seen corresponding path program 1 times [2022-01-10 18:31:13,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:13,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83801392] [2022-01-10 18:31:13,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:13,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:13,606 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 18:31:13,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:13,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83801392] [2022-01-10 18:31:13,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83801392] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 18:31:13,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074903737] [2022-01-10 18:31:13,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:13,606 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:31:13,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:31:13,607 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 18:31:13,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-10 18:31:13,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:13,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 1213 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-10 18:31:13,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 18:31:14,015 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 18:31:14,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 18:31:14,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 18:31:14,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074903737] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 18:31:14,201 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 18:31:14,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2022-01-10 18:31:14,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498781149] [2022-01-10 18:31:14,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 18:31:14,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-10 18:31:14,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:14,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-10 18:31:14,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-01-10 18:31:14,202 INFO L87 Difference]: Start difference. First operand 691 states and 919 transitions. Second operand has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 13 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:14,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:14,529 INFO L93 Difference]: Finished difference Result 1743 states and 2349 transitions. [2022-01-10 18:31:14,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-10 18:31:14,529 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 13 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2022-01-10 18:31:14,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:14,533 INFO L225 Difference]: With dead ends: 1743 [2022-01-10 18:31:14,533 INFO L226 Difference]: Without dead ends: 1363 [2022-01-10 18:31:14,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 246 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2022-01-10 18:31:14,534 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 1748 mSDsluCounter, 2055 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 2396 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:14,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1748 Valid, 2396 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:31:14,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2022-01-10 18:31:14,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 705. [2022-01-10 18:31:14,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 704 states have (on average 1.3252840909090908) internal successors, (933), 704 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:14,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 933 transitions. [2022-01-10 18:31:14,637 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 933 transitions. Word has length 126 [2022-01-10 18:31:14,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:14,637 INFO L470 AbstractCegarLoop]: Abstraction has 705 states and 933 transitions. [2022-01-10 18:31:14,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 13 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:14,637 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 933 transitions. [2022-01-10 18:31:14,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-01-10 18:31:14,638 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:14,638 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:14,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-10 18:31:14,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:31:14,856 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:14,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:14,856 INFO L85 PathProgramCache]: Analyzing trace with hash -695250452, now seen corresponding path program 1 times [2022-01-10 18:31:14,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:14,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066437249] [2022-01-10 18:31:14,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:14,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:14,931 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 18:31:14,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:14,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066437249] [2022-01-10 18:31:14,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066437249] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 18:31:14,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969148241] [2022-01-10 18:31:14,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:14,931 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:31:14,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:31:14,932 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 18:31:14,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-10 18:31:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:15,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 18:31:15,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 18:31:15,361 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 18:31:15,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 18:31:15,545 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 18:31:15,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969148241] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 18:31:15,545 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 18:31:15,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-01-10 18:31:15,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18123467] [2022-01-10 18:31:15,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 18:31:15,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 18:31:15,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:15,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 18:31:15,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 18:31:15,546 INFO L87 Difference]: Start difference. First operand 705 states and 933 transitions. Second operand has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:15,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:15,767 INFO L93 Difference]: Finished difference Result 1476 states and 1943 transitions. [2022-01-10 18:31:15,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:31:15,768 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2022-01-10 18:31:15,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:15,773 INFO L225 Difference]: With dead ends: 1476 [2022-01-10 18:31:15,774 INFO L226 Difference]: Without dead ends: 781 [2022-01-10 18:31:15,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 18:31:15,775 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 144 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:15,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1100 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:31:15,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2022-01-10 18:31:15,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 781. [2022-01-10 18:31:15,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 780 states have (on average 1.2987179487179488) internal successors, (1013), 780 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:15,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1013 transitions. [2022-01-10 18:31:15,885 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1013 transitions. Word has length 127 [2022-01-10 18:31:15,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:15,885 INFO L470 AbstractCegarLoop]: Abstraction has 781 states and 1013 transitions. [2022-01-10 18:31:15,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:15,885 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1013 transitions. [2022-01-10 18:31:15,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-01-10 18:31:15,887 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:15,887 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:15,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-10 18:31:16,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:31:16,105 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:16,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:16,106 INFO L85 PathProgramCache]: Analyzing trace with hash -598188994, now seen corresponding path program 2 times [2022-01-10 18:31:16,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:16,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001956158] [2022-01-10 18:31:16,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:16,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:16,311 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-01-10 18:31:16,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:16,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001956158] [2022-01-10 18:31:16,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001956158] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:16,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:16,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:31:16,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928197715] [2022-01-10 18:31:16,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:16,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:31:16,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:16,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:31:16,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:31:16,312 INFO L87 Difference]: Start difference. First operand 781 states and 1013 transitions. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:16,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:16,637 INFO L93 Difference]: Finished difference Result 2210 states and 2977 transitions. [2022-01-10 18:31:16,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 18:31:16,637 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 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 201 [2022-01-10 18:31:16,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:16,640 INFO L225 Difference]: With dead ends: 2210 [2022-01-10 18:31:16,640 INFO L226 Difference]: Without dead ends: 1830 [2022-01-10 18:31:16,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:31:16,641 INFO L933 BasicCegarLoop]: 753 mSDtfsCounter, 584 mSDsluCounter, 2400 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 3153 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:16,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [584 Valid, 3153 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:31:16,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2022-01-10 18:31:16,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 827. [2022-01-10 18:31:16,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 826 states have (on average 1.3087167070217918) internal successors, (1081), 826 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:16,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1081 transitions. [2022-01-10 18:31:16,746 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1081 transitions. Word has length 201 [2022-01-10 18:31:16,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:16,746 INFO L470 AbstractCegarLoop]: Abstraction has 827 states and 1081 transitions. [2022-01-10 18:31:16,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:16,747 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1081 transitions. [2022-01-10 18:31:16,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-01-10 18:31:16,748 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:16,748 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:16,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-10 18:31:16,748 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:16,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:16,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1928456094, now seen corresponding path program 1 times [2022-01-10 18:31:16,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:16,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704453330] [2022-01-10 18:31:16,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:16,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:17,202 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-01-10 18:31:17,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:17,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704453330] [2022-01-10 18:31:17,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704453330] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:17,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:17,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 18:31:17,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491832529] [2022-01-10 18:31:17,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:17,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 18:31:17,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:17,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 18:31:17,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-10 18:31:17,204 INFO L87 Difference]: Start difference. First operand 827 states and 1081 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:18,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:18,282 INFO L93 Difference]: Finished difference Result 1918 states and 2562 transitions. [2022-01-10 18:31:18,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 18:31:18,282 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 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 201 [2022-01-10 18:31:18,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:18,284 INFO L225 Difference]: With dead ends: 1918 [2022-01-10 18:31:18,284 INFO L226 Difference]: Without dead ends: 1391 [2022-01-10 18:31:18,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2022-01-10 18:31:18,286 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 3412 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3412 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:18,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3412 Valid, 1896 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 18:31:18,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391 states. [2022-01-10 18:31:18,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1391 to 767. [2022-01-10 18:31:18,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 766 states have (on average 1.2963446475195823) internal successors, (993), 766 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:18,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 993 transitions. [2022-01-10 18:31:18,416 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 993 transitions. Word has length 201 [2022-01-10 18:31:18,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:18,417 INFO L470 AbstractCegarLoop]: Abstraction has 767 states and 993 transitions. [2022-01-10 18:31:18,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:18,417 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 993 transitions. [2022-01-10 18:31:18,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-01-10 18:31:18,418 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:18,418 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:18,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-10 18:31:18,418 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:18,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:18,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1080094020, now seen corresponding path program 1 times [2022-01-10 18:31:18,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:18,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248136785] [2022-01-10 18:31:18,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:18,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:18,722 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-01-10 18:31:18,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:18,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248136785] [2022-01-10 18:31:18,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248136785] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:18,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:18,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 18:31:18,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517946615] [2022-01-10 18:31:18,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:18,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 18:31:18,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:18,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 18:31:18,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-10 18:31:18,724 INFO L87 Difference]: Start difference. First operand 767 states and 993 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:19,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:19,864 INFO L93 Difference]: Finished difference Result 2470 states and 3282 transitions. [2022-01-10 18:31:19,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 18:31:19,864 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 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 201 [2022-01-10 18:31:19,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:19,867 INFO L225 Difference]: With dead ends: 2470 [2022-01-10 18:31:19,867 INFO L226 Difference]: Without dead ends: 2022 [2022-01-10 18:31:19,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2022-01-10 18:31:19,868 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 3360 mSDsluCounter, 3030 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3360 SdHoareTripleChecker+Valid, 3312 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:19,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3360 Valid, 3312 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 18:31:19,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2022-01-10 18:31:19,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 769. [2022-01-10 18:31:19,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 768 states have (on average 1.2955729166666667) internal successors, (995), 768 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:19,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 995 transitions. [2022-01-10 18:31:19,988 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 995 transitions. Word has length 201 [2022-01-10 18:31:19,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:19,988 INFO L470 AbstractCegarLoop]: Abstraction has 769 states and 995 transitions. [2022-01-10 18:31:19,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:19,989 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 995 transitions. [2022-01-10 18:31:19,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-01-10 18:31:19,990 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:19,990 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:19,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-10 18:31:19,990 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:19,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:19,990 INFO L85 PathProgramCache]: Analyzing trace with hash -831823012, now seen corresponding path program 1 times [2022-01-10 18:31:19,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:19,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677546071] [2022-01-10 18:31:19,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:19,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:20,083 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-01-10 18:31:20,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:20,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677546071] [2022-01-10 18:31:20,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677546071] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:20,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:20,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:31:20,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099026942] [2022-01-10 18:31:20,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:20,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:31:20,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:20,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:31:20,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:20,085 INFO L87 Difference]: Start difference. First operand 769 states and 995 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:20,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:20,255 INFO L93 Difference]: Finished difference Result 1388 states and 1801 transitions. [2022-01-10 18:31:20,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:31:20,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 202 [2022-01-10 18:31:20,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:20,256 INFO L225 Difference]: With dead ends: 1388 [2022-01-10 18:31:20,256 INFO L226 Difference]: Without dead ends: 721 [2022-01-10 18:31:20,257 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 [2022-01-10 18:31:20,258 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 188 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:20,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 291 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:20,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2022-01-10 18:31:20,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 720. [2022-01-10 18:31:20,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 719 states have (on average 1.2336578581363005) internal successors, (887), 719 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:20,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 887 transitions. [2022-01-10 18:31:20,373 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 887 transitions. Word has length 202 [2022-01-10 18:31:20,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:20,374 INFO L470 AbstractCegarLoop]: Abstraction has 720 states and 887 transitions. [2022-01-10 18:31:20,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:20,374 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 887 transitions. [2022-01-10 18:31:20,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-01-10 18:31:20,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:20,375 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:20,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-10 18:31:20,376 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 18:31:20,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:20,376 INFO L85 PathProgramCache]: Analyzing trace with hash 655919850, now seen corresponding path program 1 times [2022-01-10 18:31:20,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:20,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707267734] [2022-01-10 18:31:20,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:20,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:23,648 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-01-10 18:31:23,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:23,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707267734] [2022-01-10 18:31:23,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707267734] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 18:31:23,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064871962] [2022-01-10 18:31:23,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:23,649 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:31:23,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:31:23,650 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 18:31:23,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-10 18:31:24,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:24,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 1865 conjuncts, 22 conjunts are in the unsatisfiable core [2022-01-10 18:31:24,026 INFO L286 TraceCheckSpWp]: Computing forward predicates...