/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/product-lines/email_spec9_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 18:12:35,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 18:12:35,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 18:12:35,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 18:12:35,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 18:12:35,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 18:12:35,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 18:12:35,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 18:12:35,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 18:12:35,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 18:12:35,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 18:12:35,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 18:12:35,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 18:12:35,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 18:12:35,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 18:12:35,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 18:12:35,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 18:12:35,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 18:12:35,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 18:12:35,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 18:12:35,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 18:12:35,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 18:12:35,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 18:12:35,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 18:12:35,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 18:12:35,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 18:12:35,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 18:12:35,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 18:12:35,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 18:12:35,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 18:12:35,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 18:12:35,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 18:12:35,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 18:12:35,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 18:12:35,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 18:12:35,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 18:12:35,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 18:12:35,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 18:12:35,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 18:12:35,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 18:12:35,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 18:12:35,288 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 18:12:35,322 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 18:12:35,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 18:12:35,322 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 18:12:35,322 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 18:12:35,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 18:12:35,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 18:12:35,323 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 18:12:35,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 18:12:35,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 18:12:35,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 18:12:35,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 18:12:35,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 18:12:35,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 18:12:35,324 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 18:12:35,324 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 18:12:35,324 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 18:12:35,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 18:12:35,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 18:12:35,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 18:12:35,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 18:12:35,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 18:12:35,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:12:35,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 18:12:35,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 18:12:35,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 18:12:35,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 18:12:35,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 18:12:35,325 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 18:12:35,326 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 18:12:35,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 18:12:35,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 18:12:35,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 18:12:35,326 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 18:12:35,326 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 18:12:35,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 18:12:35,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 18:12:35,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 18:12:35,638 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 18:12:35,639 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 18:12:35,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product35.cil.c [2022-01-10 18:12:35,701 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be323b9aa/64c3c1fdeb6148e690db0f167778d609/FLAG45afb3a40 [2022-01-10 18:12:36,286 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 18:12:36,286 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product35.cil.c [2022-01-10 18:12:36,315 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be323b9aa/64c3c1fdeb6148e690db0f167778d609/FLAG45afb3a40 [2022-01-10 18:12:36,525 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be323b9aa/64c3c1fdeb6148e690db0f167778d609 [2022-01-10 18:12:36,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 18:12:36,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 18:12:36,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 18:12:36,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 18:12:36,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 18:12:36,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:12:36" (1/1) ... [2022-01-10 18:12:36,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2446d5ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:36, skipping insertion in model container [2022-01-10 18:12:36,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:12:36" (1/1) ... [2022-01-10 18:12:36,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 18:12:36,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:12:37,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product35.cil.c[46615,46628] [2022-01-10 18:12:37,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:12:37,117 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 18:12:37,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:12:37,188 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product35.cil.c[46615,46628] [2022-01-10 18:12:37,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:12:37,212 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 18:12:37,308 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product35.cil.c[46615,46628] [2022-01-10 18:12:37,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:12:37,377 INFO L208 MainTranslator]: Completed translation [2022-01-10 18:12:37,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:37 WrapperNode [2022-01-10 18:12:37,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 18:12:37,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 18:12:37,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 18:12:37,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 18:12:37,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:37" (1/1) ... [2022-01-10 18:12:37,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:37" (1/1) ... [2022-01-10 18:12:37,549 INFO L137 Inliner]: procedures = 140, calls = 252, calls flagged for inlining = 153, calls inlined = 468, statements flattened = 6998 [2022-01-10 18:12:37,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 18:12:37,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 18:12:37,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 18:12:37,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 18:12:37,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:37" (1/1) ... [2022-01-10 18:12:37,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:37" (1/1) ... [2022-01-10 18:12:37,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:37" (1/1) ... [2022-01-10 18:12:37,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:37" (1/1) ... [2022-01-10 18:12:37,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:37" (1/1) ... [2022-01-10 18:12:37,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:37" (1/1) ... [2022-01-10 18:12:37,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:37" (1/1) ... [2022-01-10 18:12:37,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 18:12:37,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 18:12:37,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 18:12:37,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 18:12:37,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:37" (1/1) ... [2022-01-10 18:12:37,700 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:12:37,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:12:37,718 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 18:12:37,737 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 18:12:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 18:12:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 18:12:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 18:12:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 18:12:37,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 18:12:38,000 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 18:12:38,001 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 18:12:40,291 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 18:12:40,318 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 18:12:40,318 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 18:12:40,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:12:40 BoogieIcfgContainer [2022-01-10 18:12:40,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 18:12:40,322 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 18:12:40,322 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 18:12:40,324 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 18:12:40,326 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:12:40" (1/1) ... [2022-01-10 18:12:40,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:12:40 BasicIcfg [2022-01-10 18:12:40,840 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 18:12:40,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 18:12:40,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 18:12:40,845 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 18:12:40,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:12:36" (1/4) ... [2022-01-10 18:12:40,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b36145e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:12:40, skipping insertion in model container [2022-01-10 18:12:40,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:37" (2/4) ... [2022-01-10 18:12:40,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b36145e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:12:40, skipping insertion in model container [2022-01-10 18:12:40,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:12:40" (3/4) ... [2022-01-10 18:12:40,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b36145e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:12:40, skipping insertion in model container [2022-01-10 18:12:40,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:12:40" (4/4) ... [2022-01-10 18:12:40,847 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec9_product35.cil.cTransformedIcfg [2022-01-10 18:12:40,851 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 18:12:40,851 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 18:12:40,956 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 18:12:40,962 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 18:12:40,962 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 18:12:40,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 1457 states, 1450 states have (on average 1.6620689655172414) internal successors, (2410), 1456 states have internal predecessors, (2410), 0 states have call successors, (0), 0 states 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 18:12:41,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 18:12:41,013 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:41,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:12:41,014 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:41,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:41,018 INFO L85 PathProgramCache]: Analyzing trace with hash -466442399, now seen corresponding path program 1 times [2022-01-10 18:12:41,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:41,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569320447] [2022-01-10 18:12:41,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:41,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:41,306 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 18:12:41,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:41,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569320447] [2022-01-10 18:12:41,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569320447] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:41,307 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:41,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:12:41,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921802177] [2022-01-10 18:12:41,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:41,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 18:12:41,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:41,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 18:12:41,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:12:41,348 INFO L87 Difference]: Start difference. First operand has 1457 states, 1450 states have (on average 1.6620689655172414) internal successors, (2410), 1456 states have internal predecessors, (2410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:41,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:41,444 INFO L93 Difference]: Finished difference Result 2600 states and 4265 transitions. [2022-01-10 18:12:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 18:12:41,447 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-01-10 18:12:41,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:41,471 INFO L225 Difference]: With dead ends: 2600 [2022-01-10 18:12:41,472 INFO L226 Difference]: Without dead ends: 1175 [2022-01-10 18:12:41,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:12:41,485 INFO L933 BasicCegarLoop]: 2396 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2396 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:41,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2396 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:12:41,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2022-01-10 18:12:41,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1175. [2022-01-10 18:12:41,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 1169 states have (on average 1.6740804106073568) internal successors, (1957), 1174 states have internal predecessors, (1957), 0 states have call successors, (0), 0 states 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 18:12:41,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1957 transitions. [2022-01-10 18:12:41,566 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1957 transitions. Word has length 55 [2022-01-10 18:12:41,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:41,566 INFO L470 AbstractCegarLoop]: Abstraction has 1175 states and 1957 transitions. [2022-01-10 18:12:41,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:41,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1957 transitions. [2022-01-10 18:12:41,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 18:12:41,568 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:41,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:12:41,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 18:12:41,569 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:41,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:41,570 INFO L85 PathProgramCache]: Analyzing trace with hash -64400471, now seen corresponding path program 1 times [2022-01-10 18:12:41,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:41,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214696626] [2022-01-10 18:12:41,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:41,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:41,795 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 18:12:41,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:41,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214696626] [2022-01-10 18:12:41,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214696626] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:41,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:41,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:12:41,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083061204] [2022-01-10 18:12:41,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:41,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:12:41,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:41,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:12:41,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:12:41,798 INFO L87 Difference]: Start difference. First operand 1175 states and 1957 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:41,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:41,897 INFO L93 Difference]: Finished difference Result 1941 states and 3195 transitions. [2022-01-10 18:12:41,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:12:41,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-10 18:12:41,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:41,902 INFO L225 Difference]: With dead ends: 1941 [2022-01-10 18:12:41,902 INFO L226 Difference]: Without dead ends: 1177 [2022-01-10 18:12:41,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:12:41,904 INFO L933 BasicCegarLoop]: 1937 mSDtfsCounter, 712 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 3123 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:41,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [712 Valid, 3123 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:12:41,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2022-01-10 18:12:41,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1163. [2022-01-10 18:12:41,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 1159 states have (on average 1.6729939603106125) internal successors, (1939), 1162 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states 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 18:12:41,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1939 transitions. [2022-01-10 18:12:41,937 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1939 transitions. Word has length 56 [2022-01-10 18:12:41,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:41,938 INFO L470 AbstractCegarLoop]: Abstraction has 1163 states and 1939 transitions. [2022-01-10 18:12:41,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:41,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1939 transitions. [2022-01-10 18:12:41,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 18:12:41,948 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:41,948 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] [2022-01-10 18:12:41,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 18:12:41,948 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:41,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:41,949 INFO L85 PathProgramCache]: Analyzing trace with hash -950419695, now seen corresponding path program 1 times [2022-01-10 18:12:41,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:41,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832746230] [2022-01-10 18:12:41,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:41,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:42,166 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 18:12:42,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:42,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832746230] [2022-01-10 18:12:42,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832746230] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:42,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:42,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:12:42,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815435974] [2022-01-10 18:12:42,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:42,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:12:42,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:42,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:12:42,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:12:42,171 INFO L87 Difference]: Start difference. First operand 1163 states and 1939 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states 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 18:12:42,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:42,310 INFO L93 Difference]: Finished difference Result 2089 states and 3438 transitions. [2022-01-10 18:12:42,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:12:42,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2022-01-10 18:12:42,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:42,317 INFO L225 Difference]: With dead ends: 2089 [2022-01-10 18:12:42,317 INFO L226 Difference]: Without dead ends: 1438 [2022-01-10 18:12:42,319 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 18:12:42,320 INFO L933 BasicCegarLoop]: 2319 mSDtfsCounter, 1049 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 3625 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:42,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1049 Valid, 3625 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:12:42,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2022-01-10 18:12:42,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1163. [2022-01-10 18:12:42,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 1159 states have (on average 1.6678170836928388) internal successors, (1933), 1162 states have internal predecessors, (1933), 0 states have call successors, (0), 0 states 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 18:12:42,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1933 transitions. [2022-01-10 18:12:42,355 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1933 transitions. Word has length 112 [2022-01-10 18:12:42,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:42,356 INFO L470 AbstractCegarLoop]: Abstraction has 1163 states and 1933 transitions. [2022-01-10 18:12:42,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states 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 18:12:42,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1933 transitions. [2022-01-10 18:12:42,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 18:12:42,360 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:42,360 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 18:12:42,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 18:12:42,361 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:42,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:42,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1933054429, now seen corresponding path program 1 times [2022-01-10 18:12:42,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:42,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535196947] [2022-01-10 18:12:42,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:42,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:42,527 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 18:12:42,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:42,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535196947] [2022-01-10 18:12:42,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535196947] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:42,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:42,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:12:42,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050976367] [2022-01-10 18:12:42,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:42,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:12:42,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:42,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:12:42,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:12:42,530 INFO L87 Difference]: Start difference. First operand 1163 states and 1933 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 18:12:42,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:42,610 INFO L93 Difference]: Finished difference Result 2307 states and 3838 transitions. [2022-01-10 18:12:42,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:12:42,611 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 18:12:42,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:42,616 INFO L225 Difference]: With dead ends: 2307 [2022-01-10 18:12:42,616 INFO L226 Difference]: Without dead ends: 1163 [2022-01-10 18:12:42,617 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 18:12:42,624 INFO L933 BasicCegarLoop]: 1911 mSDtfsCounter, 1908 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1908 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:42,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1908 Valid, 1924 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:12:42,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2022-01-10 18:12:42,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1163. [2022-01-10 18:12:42,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 1159 states have (on average 1.6660914581535806) internal successors, (1931), 1162 states have internal predecessors, (1931), 0 states have call successors, (0), 0 states 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 18:12:42,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1931 transitions. [2022-01-10 18:12:42,658 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1931 transitions. Word has length 113 [2022-01-10 18:12:42,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:42,658 INFO L470 AbstractCegarLoop]: Abstraction has 1163 states and 1931 transitions. [2022-01-10 18:12:42,659 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 18:12:42,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1931 transitions. [2022-01-10 18:12:42,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-10 18:12:42,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:42,661 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 18:12:42,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 18:12:42,661 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:42,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:42,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1662922723, now seen corresponding path program 1 times [2022-01-10 18:12:42,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:42,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707703659] [2022-01-10 18:12:42,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:42,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:42,854 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 18:12:42,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:42,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707703659] [2022-01-10 18:12:42,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707703659] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:42,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:42,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:12:42,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360015865] [2022-01-10 18:12:42,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:42,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:12:42,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:42,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:12:42,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:42,857 INFO L87 Difference]: Start difference. First operand 1163 states and 1931 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 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 18:12:43,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:43,213 INFO L93 Difference]: Finished difference Result 5683 states and 9451 transitions. [2022-01-10 18:12:43,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 18:12:43,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 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 18:12:43,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:43,233 INFO L225 Difference]: With dead ends: 5683 [2022-01-10 18:12:43,233 INFO L226 Difference]: Without dead ends: 4544 [2022-01-10 18:12:43,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 18:12:43,244 INFO L933 BasicCegarLoop]: 3785 mSDtfsCounter, 9438 mSDsluCounter, 5665 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9438 SdHoareTripleChecker+Valid, 9450 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:43,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9438 Valid, 9450 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:12:43,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4544 states. [2022-01-10 18:12:43,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4544 to 1163. [2022-01-10 18:12:43,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 1159 states have (on average 1.6652286453839518) internal successors, (1930), 1162 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states 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 18:12:43,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1930 transitions. [2022-01-10 18:12:43,387 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1930 transitions. Word has length 115 [2022-01-10 18:12:43,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:43,387 INFO L470 AbstractCegarLoop]: Abstraction has 1163 states and 1930 transitions. [2022-01-10 18:12:43,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 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 18:12:43,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1930 transitions. [2022-01-10 18:12:43,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 18:12:43,391 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:43,391 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 18:12:43,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 18:12:43,392 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:43,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:43,392 INFO L85 PathProgramCache]: Analyzing trace with hash -632449525, now seen corresponding path program 1 times [2022-01-10 18:12:43,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:43,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174450296] [2022-01-10 18:12:43,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:43,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:43,545 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 18:12:43,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:43,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174450296] [2022-01-10 18:12:43,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174450296] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:43,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:43,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:12:43,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657247810] [2022-01-10 18:12:43,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:43,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:12:43,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:43,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:12:43,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:12:43,548 INFO L87 Difference]: Start difference. First operand 1163 states and 1930 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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 18:12:43,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:43,639 INFO L93 Difference]: Finished difference Result 2311 states and 3838 transitions. [2022-01-10 18:12:43,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:12:43,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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 18:12:43,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:43,645 INFO L225 Difference]: With dead ends: 2311 [2022-01-10 18:12:43,645 INFO L226 Difference]: Without dead ends: 1177 [2022-01-10 18:12:43,647 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 18:12:43,648 INFO L933 BasicCegarLoop]: 1944 mSDtfsCounter, 1909 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1909 SdHoareTripleChecker+Valid, 1966 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:43,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1909 Valid, 1966 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:12:43,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2022-01-10 18:12:43,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1163. [2022-01-10 18:12:43,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 1159 states have (on average 1.6643658326143227) internal successors, (1929), 1162 states have internal predecessors, (1929), 0 states have call successors, (0), 0 states 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 18:12:43,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1929 transitions. [2022-01-10 18:12:43,720 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1929 transitions. Word has length 116 [2022-01-10 18:12:43,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:43,720 INFO L470 AbstractCegarLoop]: Abstraction has 1163 states and 1929 transitions. [2022-01-10 18:12:43,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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 18:12:43,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1929 transitions. [2022-01-10 18:12:43,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-10 18:12:43,723 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:43,723 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:12:43,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 18:12:43,723 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:43,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:43,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1579785602, now seen corresponding path program 1 times [2022-01-10 18:12:43,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:43,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706396082] [2022-01-10 18:12:43,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:43,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:43,883 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 18:12:43,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:43,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706396082] [2022-01-10 18:12:43,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706396082] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:43,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:43,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:12:43,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330904168] [2022-01-10 18:12:43,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:43,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:12:43,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:43,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:12:43,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:43,886 INFO L87 Difference]: Start difference. First operand 1163 states and 1929 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 18:12:44,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:44,164 INFO L93 Difference]: Finished difference Result 3423 states and 5687 transitions. [2022-01-10 18:12:44,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:12:44,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-01-10 18:12:44,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:44,174 INFO L225 Difference]: With dead ends: 3423 [2022-01-10 18:12:44,174 INFO L226 Difference]: Without dead ends: 2294 [2022-01-10 18:12:44,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 18:12:44,178 INFO L933 BasicCegarLoop]: 1938 mSDtfsCounter, 9361 mSDsluCounter, 1952 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9361 SdHoareTripleChecker+Valid, 3890 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:44,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9361 Valid, 3890 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:12:44,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2022-01-10 18:12:44,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 1163. [2022-01-10 18:12:44,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 1159 states have (on average 1.6626402070750648) internal successors, (1927), 1162 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states 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 18:12:44,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1927 transitions. [2022-01-10 18:12:44,267 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1927 transitions. Word has length 117 [2022-01-10 18:12:44,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:44,267 INFO L470 AbstractCegarLoop]: Abstraction has 1163 states and 1927 transitions. [2022-01-10 18:12:44,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 18:12:44,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1927 transitions. [2022-01-10 18:12:44,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-10 18:12:44,270 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:44,270 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 18:12:44,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 18:12:44,271 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:44,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:44,272 INFO L85 PathProgramCache]: Analyzing trace with hash 172003739, now seen corresponding path program 1 times [2022-01-10 18:12:44,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:44,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988257820] [2022-01-10 18:12:44,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:44,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:44,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:44,424 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 18:12:44,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:44,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988257820] [2022-01-10 18:12:44,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988257820] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:44,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:44,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:12:44,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669267733] [2022-01-10 18:12:44,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:44,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:12:44,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:44,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:12:44,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:12:44,426 INFO L87 Difference]: Start difference. First operand 1163 states and 1927 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:45,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:45,301 INFO L93 Difference]: Finished difference Result 9484 states and 15520 transitions. [2022-01-10 18:12:45,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 18:12:45,302 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2022-01-10 18:12:45,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:45,334 INFO L225 Difference]: With dead ends: 9484 [2022-01-10 18:12:45,334 INFO L226 Difference]: Without dead ends: 8648 [2022-01-10 18:12:45,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-10 18:12:45,340 INFO L933 BasicCegarLoop]: 3690 mSDtfsCounter, 16389 mSDsluCounter, 13314 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16389 SdHoareTripleChecker+Valid, 17004 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:45,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16389 Valid, 17004 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 18:12:45,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8648 states. [2022-01-10 18:12:45,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8648 to 2023. [2022-01-10 18:12:45,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2023 states, 2019 states have (on average 1.66468548786528) internal successors, (3361), 2022 states have internal predecessors, (3361), 0 states have call successors, (0), 0 states 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 18:12:45,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2023 states to 2023 states and 3361 transitions. [2022-01-10 18:12:45,572 INFO L78 Accepts]: Start accepts. Automaton has 2023 states and 3361 transitions. Word has length 119 [2022-01-10 18:12:45,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:45,573 INFO L470 AbstractCegarLoop]: Abstraction has 2023 states and 3361 transitions. [2022-01-10 18:12:45,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:45,573 INFO L276 IsEmpty]: Start isEmpty. Operand 2023 states and 3361 transitions. [2022-01-10 18:12:45,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 18:12:45,577 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:45,577 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:12:45,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 18:12:45,577 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:45,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:45,578 INFO L85 PathProgramCache]: Analyzing trace with hash -2099557958, now seen corresponding path program 1 times [2022-01-10 18:12:45,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:45,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285023036] [2022-01-10 18:12:45,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:45,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:45,760 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 18:12:45,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:45,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285023036] [2022-01-10 18:12:45,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285023036] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:45,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:45,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:12:45,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603851306] [2022-01-10 18:12:45,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:45,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:12:45,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:45,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:12:45,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:45,762 INFO L87 Difference]: Start difference. First operand 2023 states and 3361 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 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 18:12:46,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:46,102 INFO L93 Difference]: Finished difference Result 4574 states and 7475 transitions. [2022-01-10 18:12:46,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:12:46,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 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 18:12:46,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:46,127 INFO L225 Difference]: With dead ends: 4574 [2022-01-10 18:12:46,127 INFO L226 Difference]: Without dead ends: 3177 [2022-01-10 18:12:46,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 18:12:46,133 INFO L933 BasicCegarLoop]: 1909 mSDtfsCounter, 6931 mSDsluCounter, 2226 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6931 SdHoareTripleChecker+Valid, 4135 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:46,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6931 Valid, 4135 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:12:46,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3177 states. [2022-01-10 18:12:46,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3177 to 2023. [2022-01-10 18:12:46,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2023 states, 2019 states have (on average 1.662704309063893) internal successors, (3357), 2022 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states 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 18:12:46,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2023 states to 2023 states and 3357 transitions. [2022-01-10 18:12:46,309 INFO L78 Accepts]: Start accepts. Automaton has 2023 states and 3357 transitions. Word has length 120 [2022-01-10 18:12:46,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:46,312 INFO L470 AbstractCegarLoop]: Abstraction has 2023 states and 3357 transitions. [2022-01-10 18:12:46,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 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 18:12:46,313 INFO L276 IsEmpty]: Start isEmpty. Operand 2023 states and 3357 transitions. [2022-01-10 18:12:46,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 18:12:46,317 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:46,317 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 18:12:46,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 18:12:46,317 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:46,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:46,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1233175749, now seen corresponding path program 1 times [2022-01-10 18:12:46,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:46,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058879164] [2022-01-10 18:12:46,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:46,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:46,425 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 18:12:46,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:46,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058879164] [2022-01-10 18:12:46,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058879164] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:46,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:46,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:12:46,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114979135] [2022-01-10 18:12:46,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:46,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:12:46,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:46,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:12:46,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:46,427 INFO L87 Difference]: Start difference. First operand 2023 states and 3357 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 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 18:12:46,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:46,799 INFO L93 Difference]: Finished difference Result 5946 states and 9900 transitions. [2022-01-10 18:12:46,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:12:46,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 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 18:12:46,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:46,808 INFO L225 Difference]: With dead ends: 5946 [2022-01-10 18:12:46,808 INFO L226 Difference]: Without dead ends: 3960 [2022-01-10 18:12:46,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 18:12:46,813 INFO L933 BasicCegarLoop]: 3753 mSDtfsCounter, 5712 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5712 SdHoareTripleChecker+Valid, 5631 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:46,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5712 Valid, 5631 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:12:46,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3960 states. [2022-01-10 18:12:46,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3960 to 2023. [2022-01-10 18:12:46,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2023 states, 2019 states have (on average 1.6617137196631997) internal successors, (3355), 2022 states have internal predecessors, (3355), 0 states have call successors, (0), 0 states 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 18:12:46,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2023 states to 2023 states and 3355 transitions. [2022-01-10 18:12:46,970 INFO L78 Accepts]: Start accepts. Automaton has 2023 states and 3355 transitions. Word has length 120 [2022-01-10 18:12:46,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:46,970 INFO L470 AbstractCegarLoop]: Abstraction has 2023 states and 3355 transitions. [2022-01-10 18:12:46,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 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 18:12:46,971 INFO L276 IsEmpty]: Start isEmpty. Operand 2023 states and 3355 transitions. [2022-01-10 18:12:46,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 18:12:46,976 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:46,976 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:12:46,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 18:12:46,976 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:46,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:46,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1956350695, now seen corresponding path program 1 times [2022-01-10 18:12:46,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:46,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667760969] [2022-01-10 18:12:46,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:46,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:47,122 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 18:12:47,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:47,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667760969] [2022-01-10 18:12:47,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667760969] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:47,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:47,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:12:47,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075316520] [2022-01-10 18:12:47,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:47,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:12:47,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:47,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:12:47,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:47,124 INFO L87 Difference]: Start difference. First operand 2023 states and 3355 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states 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 18:12:47,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:47,556 INFO L93 Difference]: Finished difference Result 5879 states and 9661 transitions. [2022-01-10 18:12:47,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:12:47,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 18:12:47,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:47,566 INFO L225 Difference]: With dead ends: 5879 [2022-01-10 18:12:47,566 INFO L226 Difference]: Without dead ends: 4836 [2022-01-10 18:12:47,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:12:47,569 INFO L933 BasicCegarLoop]: 1994 mSDtfsCounter, 3995 mSDsluCounter, 5878 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3995 SdHoareTripleChecker+Valid, 7872 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 18:12:47,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3995 Valid, 7872 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:12:47,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4836 states. [2022-01-10 18:12:47,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4836 to 3715. [2022-01-10 18:12:47,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3715 states, 3711 states have (on average 1.6672056049582322) internal successors, (6187), 3714 states have internal predecessors, (6187), 0 states have call successors, (0), 0 states 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 18:12:47,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3715 states to 3715 states and 6187 transitions. [2022-01-10 18:12:47,890 INFO L78 Accepts]: Start accepts. Automaton has 3715 states and 6187 transitions. Word has length 121 [2022-01-10 18:12:47,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:47,891 INFO L470 AbstractCegarLoop]: Abstraction has 3715 states and 6187 transitions. [2022-01-10 18:12:47,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states 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 18:12:47,891 INFO L276 IsEmpty]: Start isEmpty. Operand 3715 states and 6187 transitions. [2022-01-10 18:12:47,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 18:12:47,898 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:47,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:12:47,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 18:12:47,899 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:47,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:47,900 INFO L85 PathProgramCache]: Analyzing trace with hash 256889491, now seen corresponding path program 1 times [2022-01-10 18:12:47,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:47,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125597796] [2022-01-10 18:12:47,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:47,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:48,099 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 18:12:48,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:48,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125597796] [2022-01-10 18:12:48,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125597796] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:48,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:48,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 18:12:48,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905716896] [2022-01-10 18:12:48,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:48,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 18:12:48,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:48,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 18:12:48,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:12:48,101 INFO L87 Difference]: Start difference. First operand 3715 states and 6187 transitions. Second operand has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 8 states have internal predecessors, (121), 0 states have call successors, (0), 0 states 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 18:12:51,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:51,024 INFO L93 Difference]: Finished difference Result 20352 states and 32635 transitions. [2022-01-10 18:12:51,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 18:12:51,025 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 8 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 18:12:51,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:51,069 INFO L225 Difference]: With dead ends: 20352 [2022-01-10 18:12:51,069 INFO L226 Difference]: Without dead ends: 18069 [2022-01-10 18:12:51,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 18:12:51,082 INFO L933 BasicCegarLoop]: 3134 mSDtfsCounter, 18360 mSDsluCounter, 15622 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18360 SdHoareTripleChecker+Valid, 18756 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:51,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18360 Valid, 18756 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 18:12:51,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18069 states. [2022-01-10 18:12:51,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18069 to 7339. [2022-01-10 18:12:51,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7335 states have (on average 1.6684389911383777) internal successors, (12238), 7338 states have internal predecessors, (12238), 0 states have call successors, (0), 0 states 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 18:12:51,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 12238 transitions. [2022-01-10 18:12:51,868 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 12238 transitions. Word has length 121 [2022-01-10 18:12:51,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:51,868 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 12238 transitions. [2022-01-10 18:12:51,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 8 states have internal predecessors, (121), 0 states have call successors, (0), 0 states 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 18:12:51,869 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 12238 transitions. [2022-01-10 18:12:51,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 18:12:51,879 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:51,879 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] [2022-01-10 18:12:51,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 18:12:51,880 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:51,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:51,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1029973499, now seen corresponding path program 1 times [2022-01-10 18:12:51,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:51,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327411042] [2022-01-10 18:12:51,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:51,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:51,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:12:51,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:51,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327411042] [2022-01-10 18:12:51,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327411042] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:51,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:51,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:12:51,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112832827] [2022-01-10 18:12:51,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:51,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:12:51,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:51,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:12:51,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:51,992 INFO L87 Difference]: Start difference. First operand 7339 states and 12238 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states 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 18:12:53,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:53,512 INFO L93 Difference]: Finished difference Result 21411 states and 35214 transitions. [2022-01-10 18:12:53,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:12:53,513 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2022-01-10 18:12:53,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:53,552 INFO L225 Difference]: With dead ends: 21411 [2022-01-10 18:12:53,552 INFO L226 Difference]: Without dead ends: 17836 [2022-01-10 18:12:53,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:12:53,563 INFO L933 BasicCegarLoop]: 2268 mSDtfsCounter, 3295 mSDsluCounter, 5724 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3295 SdHoareTripleChecker+Valid, 7992 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:53,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3295 Valid, 7992 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:12:53,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17836 states. [2022-01-10 18:12:54,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17836 to 14117. [2022-01-10 18:12:54,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14117 states, 14113 states have (on average 1.6712251115992347) internal successors, (23586), 14116 states have internal predecessors, (23586), 0 states have call successors, (0), 0 states 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 18:12:54,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14117 states to 14117 states and 23586 transitions. [2022-01-10 18:12:54,618 INFO L78 Accepts]: Start accepts. Automaton has 14117 states and 23586 transitions. Word has length 122 [2022-01-10 18:12:54,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:54,618 INFO L470 AbstractCegarLoop]: Abstraction has 14117 states and 23586 transitions. [2022-01-10 18:12:54,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states 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 18:12:54,619 INFO L276 IsEmpty]: Start isEmpty. Operand 14117 states and 23586 transitions. [2022-01-10 18:12:54,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 18:12:54,635 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:54,635 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] [2022-01-10 18:12:54,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 18:12:54,635 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:54,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:54,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1188169784, now seen corresponding path program 1 times [2022-01-10 18:12:54,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:54,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101552399] [2022-01-10 18:12:54,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:54,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:54,738 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 18:12:54,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:54,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101552399] [2022-01-10 18:12:54,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101552399] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:54,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:54,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:12:54,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422690197] [2022-01-10 18:12:54,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:54,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:12:54,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:54,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:12:54,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:12:54,740 INFO L87 Difference]: Start difference. First operand 14117 states and 23586 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states 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 18:12:56,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:56,402 INFO L93 Difference]: Finished difference Result 22681 states and 37241 transitions. [2022-01-10 18:12:56,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:12:56,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2022-01-10 18:12:56,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:56,437 INFO L225 Difference]: With dead ends: 22681 [2022-01-10 18:12:56,438 INFO L226 Difference]: Without dead ends: 17869 [2022-01-10 18:12:56,446 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 18:12:56,447 INFO L933 BasicCegarLoop]: 1917 mSDtfsCounter, 3789 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3789 SdHoareTripleChecker+Valid, 4078 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:56,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3789 Valid, 4078 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:12:56,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17869 states. [2022-01-10 18:12:57,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17869 to 14117. [2022-01-10 18:12:57,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14117 states, 14113 states have (on average 1.6706582583433713) internal successors, (23578), 14116 states have internal predecessors, (23578), 0 states have call successors, (0), 0 states 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 18:12:57,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14117 states to 14117 states and 23578 transitions. [2022-01-10 18:12:57,492 INFO L78 Accepts]: Start accepts. Automaton has 14117 states and 23578 transitions. Word has length 122 [2022-01-10 18:12:57,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:57,493 INFO L470 AbstractCegarLoop]: Abstraction has 14117 states and 23578 transitions. [2022-01-10 18:12:57,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states 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 18:12:57,493 INFO L276 IsEmpty]: Start isEmpty. Operand 14117 states and 23578 transitions. [2022-01-10 18:12:57,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 18:12:57,507 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:57,507 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] [2022-01-10 18:12:57,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 18:12:57,508 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:57,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:57,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1621741961, now seen corresponding path program 1 times [2022-01-10 18:12:57,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:57,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784627774] [2022-01-10 18:12:57,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:57,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:57,617 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 18:12:57,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:57,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784627774] [2022-01-10 18:12:57,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784627774] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:57,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:57,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:12:57,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312218460] [2022-01-10 18:12:57,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:57,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:12:57,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:57,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:12:57,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:57,619 INFO L87 Difference]: Start difference. First operand 14117 states and 23578 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states 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 18:13:04,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:13:04,287 INFO L93 Difference]: Finished difference Result 68629 states and 110098 transitions. [2022-01-10 18:13:04,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:13:04,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2022-01-10 18:13:04,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:13:04,414 INFO L225 Difference]: With dead ends: 68629 [2022-01-10 18:13:04,414 INFO L226 Difference]: Without dead ends: 64300 [2022-01-10 18:13:04,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:13:04,437 INFO L933 BasicCegarLoop]: 1900 mSDtfsCounter, 12307 mSDsluCounter, 7159 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12307 SdHoareTripleChecker+Valid, 9059 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 18:13:04,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12307 Valid, 9059 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 18:13:04,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64300 states. [2022-01-10 18:13:07,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64300 to 36524. [2022-01-10 18:13:08,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36524 states, 36520 states have (on average 1.6255750273822562) internal successors, (59366), 36523 states have internal predecessors, (59366), 0 states have call successors, (0), 0 states 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 18:13:08,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36524 states to 36524 states and 59366 transitions. [2022-01-10 18:13:08,079 INFO L78 Accepts]: Start accepts. Automaton has 36524 states and 59366 transitions. Word has length 122 [2022-01-10 18:13:08,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:13:08,080 INFO L470 AbstractCegarLoop]: Abstraction has 36524 states and 59366 transitions. [2022-01-10 18:13:08,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states 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 18:13:08,080 INFO L276 IsEmpty]: Start isEmpty. Operand 36524 states and 59366 transitions. [2022-01-10 18:13:08,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 18:13:08,109 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:08,110 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] [2022-01-10 18:13:08,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 18:13:08,110 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:13:08,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:08,110 INFO L85 PathProgramCache]: Analyzing trace with hash -405150584, now seen corresponding path program 1 times [2022-01-10 18:13:08,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:08,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744979969] [2022-01-10 18:13:08,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:08,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:13:08,211 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 18:13:08,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:13:08,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744979969] [2022-01-10 18:13:08,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744979969] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:13:08,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:13:08,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:13:08,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620762744] [2022-01-10 18:13:08,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:13:08,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:13:08,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:13:08,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:13:08,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:13:08,214 INFO L87 Difference]: Start difference. First operand 36524 states and 59366 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states 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 18:13:20,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:13:20,441 INFO L93 Difference]: Finished difference Result 127220 states and 202904 transitions. [2022-01-10 18:13:20,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 18:13:20,442 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2022-01-10 18:13:20,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:13:20,651 INFO L225 Difference]: With dead ends: 127220 [2022-01-10 18:13:20,651 INFO L226 Difference]: Without dead ends: 107180 [2022-01-10 18:13:20,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-01-10 18:13:20,801 INFO L933 BasicCegarLoop]: 2197 mSDtfsCounter, 10156 mSDsluCounter, 6585 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10156 SdHoareTripleChecker+Valid, 8782 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 18:13:20,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10156 Valid, 8782 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 18:13:20,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107180 states. [2022-01-10 18:13:25,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107180 to 37516. [2022-01-10 18:13:25,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37516 states, 37512 states have (on average 1.6204414587332054) internal successors, (60786), 37515 states have internal predecessors, (60786), 0 states have call successors, (0), 0 states 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 18:13:25,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37516 states to 37516 states and 60786 transitions. [2022-01-10 18:13:25,290 INFO L78 Accepts]: Start accepts. Automaton has 37516 states and 60786 transitions. Word has length 123 [2022-01-10 18:13:25,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:13:25,290 INFO L470 AbstractCegarLoop]: Abstraction has 37516 states and 60786 transitions. [2022-01-10 18:13:25,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states 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 18:13:25,291 INFO L276 IsEmpty]: Start isEmpty. Operand 37516 states and 60786 transitions. [2022-01-10 18:13:25,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-10 18:13:25,320 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:25,321 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] [2022-01-10 18:13:25,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 18:13:25,322 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:13:25,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:25,322 INFO L85 PathProgramCache]: Analyzing trace with hash 444614674, now seen corresponding path program 1 times [2022-01-10 18:13:25,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:25,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197153967] [2022-01-10 18:13:25,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:25,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:13:25,413 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 18:13:25,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:13:25,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197153967] [2022-01-10 18:13:25,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197153967] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:13:25,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:13:25,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:13:25,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306010152] [2022-01-10 18:13:25,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:13:25,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:13:25,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:13:25,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:13:25,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:13:25,416 INFO L87 Difference]: Start difference. First operand 37516 states and 60786 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 0 states have call successors, (0), 0 states 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 18:13:36,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:13:36,790 INFO L93 Difference]: Finished difference Result 128606 states and 206785 transitions. [2022-01-10 18:13:36,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 18:13:36,791 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2022-01-10 18:13:36,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:13:36,948 INFO L225 Difference]: With dead ends: 128606 [2022-01-10 18:13:36,948 INFO L226 Difference]: Without dead ends: 95534 [2022-01-10 18:13:36,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-10 18:13:36,989 INFO L933 BasicCegarLoop]: 1846 mSDtfsCounter, 6892 mSDsluCounter, 7520 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6892 SdHoareTripleChecker+Valid, 9366 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 18:13:36,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6892 Valid, 9366 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 18:13:37,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95534 states.