/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec8_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:48:47,317 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:48:47,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:48:47,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:48:47,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:48:47,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:48:47,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:48:47,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:48:47,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:48:47,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:48:47,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:48:47,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:48:47,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:48:47,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:48:47,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:48:47,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:48:47,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:48:47,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:48:47,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:48:47,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:48:47,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:48:47,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:48:47,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:48:47,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:48:47,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:48:47,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:48:47,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:48:47,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:48:47,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:48:47,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:48:47,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:48:47,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:48:47,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:48:47,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:48:47,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:48:47,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:48:47,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:48:47,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:48:47,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:48:47,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:48:47,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:48:47,428 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:48:47,453 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:48:47,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:48:47,454 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:48:47,454 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:48:47,455 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:48:47,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:48:47,455 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:48:47,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:48:47,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:48:47,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:48:47,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:48:47,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:48:47,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:48:47,456 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:48:47,456 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:48:47,456 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:48:47,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:48:47,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:48:47,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:48:47,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:48:47,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:48:47,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:48:47,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:48:47,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:48:47,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:48:47,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:48:47,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:48:47,458 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:48:47,458 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:48:47,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:48:47,459 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:48:47,459 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:48:47,460 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:48:47,460 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:48:47,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:48:47,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:48:47,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:48:47,713 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:48:47,714 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:48:47,715 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_productSimulator.cil.c [2022-01-11 05:48:47,796 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88f784f3a/e1eb5f68d2224ce2b259650fb56f7051/FLAG13db08350 [2022-01-11 05:48:48,283 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:48:48,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_productSimulator.cil.c [2022-01-11 05:48:48,307 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88f784f3a/e1eb5f68d2224ce2b259650fb56f7051/FLAG13db08350 [2022-01-11 05:48:48,748 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88f784f3a/e1eb5f68d2224ce2b259650fb56f7051 [2022-01-11 05:48:48,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:48:48,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:48:48,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:48:48,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:48:48,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:48:48,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:48:48" (1/1) ... [2022-01-11 05:48:48,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cfd5fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:48:48, skipping insertion in model container [2022-01-11 05:48:48,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:48:48" (1/1) ... [2022-01-11 05:48:48,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:48:48,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:48:49,279 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_spec8_productSimulator.cil.c[73270,73283] [2022-01-11 05:48:49,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:48:49,305 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:48:49,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:48:49,409 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_spec8_productSimulator.cil.c[73270,73283] [2022-01-11 05:48:49,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:48:49,415 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:48:49,506 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_spec8_productSimulator.cil.c[73270,73283] [2022-01-11 05:48:49,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:48:49,537 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:48:49,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:48:49 WrapperNode [2022-01-11 05:48:49,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:48:49,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:48:49,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:48:49,539 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:48:49,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:48:49" (1/1) ... [2022-01-11 05:48:49,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:48:49" (1/1) ... [2022-01-11 05:48:51,688 INFO L137 Inliner]: procedures = 154, calls = 288, calls flagged for inlining = 189, calls inlined = 17965, statements flattened = 241730 [2022-01-11 05:48:51,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:48:51,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:48:51,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:48:51,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:48:51,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:48:49" (1/1) ... [2022-01-11 05:48:51,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:48:49" (1/1) ... [2022-01-11 05:48:52,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:48:49" (1/1) ... [2022-01-11 05:48:52,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:48:49" (1/1) ... [2022-01-11 05:48:53,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:48:49" (1/1) ... [2022-01-11 05:48:54,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:48:49" (1/1) ... [2022-01-11 05:48:54,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:48:49" (1/1) ... [2022-01-11 05:48:55,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:48:55,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:48:55,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:48:55,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:48:55,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:48:49" (1/1) ... [2022-01-11 05:48:55,176 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:48:55,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:48:55,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:48:55,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:48:55,255 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-11 05:48:55,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:48:55,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:48:55,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:48:55,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:48:55,516 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:48:55,517 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:49:32,693 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:49:32,808 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:49:32,808 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:49:32,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:49:32 BoogieIcfgContainer [2022-01-11 05:49:32,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:49:32,843 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:49:32,843 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:49:32,844 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:49:32,846 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:49:32" (1/1) ... [2022-01-11 05:49:39,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:49:39 BasicIcfg [2022-01-11 05:49:39,094 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:49:39,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:49:39,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:49:39,099 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:49:39,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:48:48" (1/4) ... [2022-01-11 05:49:39,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a0d4316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:49:39, skipping insertion in model container [2022-01-11 05:49:39,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:48:49" (2/4) ... [2022-01-11 05:49:39,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a0d4316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:49:39, skipping insertion in model container [2022-01-11 05:49:39,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:49:32" (3/4) ... [2022-01-11 05:49:39,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a0d4316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:49:39, skipping insertion in model container [2022-01-11 05:49:39,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:49:39" (4/4) ... [2022-01-11 05:49:39,100 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec8_productSimulator.cil.cTransformedIcfg [2022-01-11 05:49:39,104 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:49:39,104 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-01-11 05:49:39,202 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:49:39,209 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:49:39,209 INFO L340 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2022-01-11 05:49:39,563 INFO L276 IsEmpty]: Start isEmpty. Operand has 39286 states, 39253 states have (on average 1.5390670776755917) internal successors, (60413), 39285 states have internal predecessors, (60413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:49:39,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 05:49:39,572 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:49:39,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:49:39,573 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2022-01-11 05:49:39,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:49:39,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1241117146, now seen corresponding path program 1 times [2022-01-11 05:49:39,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:49:39,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205215999] [2022-01-11 05:49:39,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:49:39,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:49:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:49:39,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:49:39,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:49:39,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205215999] [2022-01-11 05:49:39,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205215999] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:49:39,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:49:39,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:49:39,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660034121] [2022-01-11 05:49:39,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:49:39,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 05:49:39,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:49:39,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 05:49:39,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:49:40,033 INFO L87 Difference]: Start difference. First operand has 39286 states, 39253 states have (on average 1.5390670776755917) internal successors, (60413), 39285 states have internal predecessors, (60413), 0 states have call successors, (0), 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 26.0) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:49:41,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:49:41,099 INFO L93 Difference]: Finished difference Result 78167 states and 120144 transitions. [2022-01-11 05:49:41,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 05:49:41,101 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-01-11 05:49:41,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:49:41,244 INFO L225 Difference]: With dead ends: 78167 [2022-01-11 05:49:41,244 INFO L226 Difference]: Without dead ends: 25046 [2022-01-11 05:49:41,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:49:41,569 INFO L933 BasicCegarLoop]: 60347 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, 60347 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:49:41,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 60347 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:49:41,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25046 states. [2022-01-11 05:49:42,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25046 to 25046. [2022-01-11 05:49:42,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25046 states, 25014 states have (on average 1.5417766051011434) internal successors, (38566), 25045 states have internal predecessors, (38566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:49:42,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25046 states to 25046 states and 38566 transitions. [2022-01-11 05:49:42,258 INFO L78 Accepts]: Start accepts. Automaton has 25046 states and 38566 transitions. Word has length 52 [2022-01-11 05:49:42,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:49:42,259 INFO L470 AbstractCegarLoop]: Abstraction has 25046 states and 38566 transitions. [2022-01-11 05:49:42,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:49:42,261 INFO L276 IsEmpty]: Start isEmpty. Operand 25046 states and 38566 transitions. [2022-01-11 05:49:42,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-11 05:49:42,266 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:49:42,266 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] [2022-01-11 05:49:42,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:49:42,267 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2022-01-11 05:49:42,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:49:42,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1252551847, now seen corresponding path program 1 times [2022-01-11 05:49:42,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:49:42,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927823065] [2022-01-11 05:49:42,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:49:42,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:49:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:49:42,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:49:42,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:49:42,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927823065] [2022-01-11 05:49:42,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927823065] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:49:42,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:49:42,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:49:42,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524225531] [2022-01-11 05:49:42,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:49:42,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:49:42,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:49:42,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:49:42,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:49:42,431 INFO L87 Difference]: Start difference. First operand 25046 states and 38566 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:49:43,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:49:43,588 INFO L93 Difference]: Finished difference Result 34814 states and 53846 transitions. [2022-01-11 05:49:43,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:49:43,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2022-01-11 05:49:43,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:49:43,611 INFO L225 Difference]: With dead ends: 34814 [2022-01-11 05:49:43,611 INFO L226 Difference]: Without dead ends: 9782 [2022-01-11 05:49:43,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:49:43,646 INFO L933 BasicCegarLoop]: 14578 mSDtfsCounter, 14901 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 359 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14901 SdHoareTripleChecker+Valid, 14581 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-11 05:49:43,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14901 Valid, 14581 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [359 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-11 05:49:43,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9782 states. [2022-01-11 05:49:43,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9782 to 9782. [2022-01-11 05:49:44,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9782 states, 9766 states have (on average 1.529490067581405) internal successors, (14937), 9781 states have internal predecessors, (14937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:49:44,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9782 states to 9782 states and 14937 transitions. [2022-01-11 05:49:44,027 INFO L78 Accepts]: Start accepts. Automaton has 9782 states and 14937 transitions. Word has length 53 [2022-01-11 05:49:44,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:49:44,027 INFO L470 AbstractCegarLoop]: Abstraction has 9782 states and 14937 transitions. [2022-01-11 05:49:44,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:49:44,028 INFO L276 IsEmpty]: Start isEmpty. Operand 9782 states and 14937 transitions. [2022-01-11 05:49:44,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-11 05:49:44,029 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:49:44,029 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] [2022-01-11 05:49:44,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:49:44,030 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2022-01-11 05:49:44,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:49:44,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1272411391, now seen corresponding path program 1 times [2022-01-11 05:49:44,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:49:44,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960675838] [2022-01-11 05:49:44,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:49:44,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:49:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:49:44,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:49:44,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:49:44,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960675838] [2022-01-11 05:49:44,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960675838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:49:44,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:49:44,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:49:44,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767104110] [2022-01-11 05:49:44,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:49:44,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:49:44,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:49:44,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:49:44,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:49:44,103 INFO L87 Difference]: Start difference. First operand 9782 states and 14937 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:49:44,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:49:44,317 INFO L93 Difference]: Finished difference Result 18930 states and 28786 transitions. [2022-01-11 05:49:44,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:49:44,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2022-01-11 05:49:44,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:49:44,337 INFO L225 Difference]: With dead ends: 18930 [2022-01-11 05:49:44,337 INFO L226 Difference]: Without dead ends: 9774 [2022-01-11 05:49:44,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:49:44,354 INFO L933 BasicCegarLoop]: 14877 mSDtfsCounter, 1123 mSDsluCounter, 13721 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 28598 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:49:44,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1123 Valid, 28598 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:49:44,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9774 states. [2022-01-11 05:49:44,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9774 to 9746. [2022-01-11 05:49:44,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9746 states, 9736 states have (on average 1.528656532456861) internal successors, (14883), 9745 states have internal predecessors, (14883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:49:44,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9746 states to 9746 states and 14883 transitions. [2022-01-11 05:49:44,760 INFO L78 Accepts]: Start accepts. Automaton has 9746 states and 14883 transitions. Word has length 60 [2022-01-11 05:49:44,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:49:44,776 INFO L470 AbstractCegarLoop]: Abstraction has 9746 states and 14883 transitions. [2022-01-11 05:49:44,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:49:44,776 INFO L276 IsEmpty]: Start isEmpty. Operand 9746 states and 14883 transitions. [2022-01-11 05:49:44,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-11 05:49:44,788 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:49:44,789 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] [2022-01-11 05:49:44,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:49:44,789 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2022-01-11 05:49:44,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:49:44,790 INFO L85 PathProgramCache]: Analyzing trace with hash -957123268, now seen corresponding path program 1 times [2022-01-11 05:49:44,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:49:44,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514568512] [2022-01-11 05:49:44,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:49:44,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:49:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:49:44,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:49:44,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:49:44,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514568512] [2022-01-11 05:49:44,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514568512] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:49:44,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:49:44,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:49:44,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812070291] [2022-01-11 05:49:44,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:49:44,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:49:44,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:49:44,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:49:44,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:49:44,963 INFO L87 Difference]: Start difference. First operand 9746 states and 14883 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:49:45,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:49:45,233 INFO L93 Difference]: Finished difference Result 19467 states and 29731 transitions. [2022-01-11 05:49:45,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:49:45,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2022-01-11 05:49:45,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:49:45,254 INFO L225 Difference]: With dead ends: 19467 [2022-01-11 05:49:45,254 INFO L226 Difference]: Without dead ends: 9746 [2022-01-11 05:49:45,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:49:45,279 INFO L933 BasicCegarLoop]: 14881 mSDtfsCounter, 3 mSDsluCounter, 44633 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 59514 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:49:45,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 59514 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:49:45,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9746 states. [2022-01-11 05:49:45,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9746 to 9746. [2022-01-11 05:49:45,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9746 states, 9736 states have (on average 1.5280402629416598) internal successors, (14877), 9745 states have internal predecessors, (14877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:49:45,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9746 states to 9746 states and 14877 transitions. [2022-01-11 05:49:45,618 INFO L78 Accepts]: Start accepts. Automaton has 9746 states and 14877 transitions. Word has length 102 [2022-01-11 05:49:45,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:49:45,618 INFO L470 AbstractCegarLoop]: Abstraction has 9746 states and 14877 transitions. [2022-01-11 05:49:45,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:49:45,619 INFO L276 IsEmpty]: Start isEmpty. Operand 9746 states and 14877 transitions. [2022-01-11 05:49:45,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-11 05:49:45,630 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:49:45,630 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] [2022-01-11 05:49:45,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:49:45,631 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2022-01-11 05:49:45,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:49:45,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1241428424, now seen corresponding path program 1 times [2022-01-11 05:49:45,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:49:45,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84947793] [2022-01-11 05:49:45,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:49:45,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:49:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:49:45,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:49:45,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:49:45,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84947793] [2022-01-11 05:49:45,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84947793] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:49:45,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:49:45,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:49:45,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982432800] [2022-01-11 05:49:45,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:49:45,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:49:45,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:49:45,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:49:45,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:49:45,718 INFO L87 Difference]: Start difference. First operand 9746 states and 14877 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:49:45,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:49:45,909 INFO L93 Difference]: Finished difference Result 15356 states and 23547 transitions. [2022-01-11 05:49:45,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:49:45,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2022-01-11 05:49:45,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:49:45,921 INFO L225 Difference]: With dead ends: 15356 [2022-01-11 05:49:45,921 INFO L226 Difference]: Without dead ends: 5626 [2022-01-11 05:49:45,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:49:45,940 INFO L933 BasicCegarLoop]: 8665 mSDtfsCounter, 8662 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8662 SdHoareTripleChecker+Valid, 8676 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:49:45,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8662 Valid, 8676 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:49:45,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5626 states. [2022-01-11 05:49:46,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5626 to 5626. [2022-01-11 05:49:46,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5626 states, 5616 states have (on average 1.544871794871795) internal successors, (8676), 5625 states have internal predecessors, (8676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:49:46,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5626 states to 5626 states and 8676 transitions. [2022-01-11 05:49:46,157 INFO L78 Accepts]: Start accepts. Automaton has 5626 states and 8676 transitions. Word has length 109 [2022-01-11 05:49:46,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:49:46,159 INFO L470 AbstractCegarLoop]: Abstraction has 5626 states and 8676 transitions. [2022-01-11 05:49:46,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:49:46,160 INFO L276 IsEmpty]: Start isEmpty. Operand 5626 states and 8676 transitions. [2022-01-11 05:49:46,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-11 05:49:46,166 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:49:46,166 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] [2022-01-11 05:49:46,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:49:46,166 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2022-01-11 05:49:46,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:49:46,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1503960051, now seen corresponding path program 1 times [2022-01-11 05:49:46,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:49:46,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668861509] [2022-01-11 05:49:46,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:49:46,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:49:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:49:46,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:49:46,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:49:46,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668861509] [2022-01-11 05:49:46,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668861509] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:49:46,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:49:46,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:49:46,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495437532] [2022-01-11 05:49:46,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:49:46,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:49:46,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:49:46,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:49:46,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:49:46,230 INFO L87 Difference]: Start difference. First operand 5626 states and 8676 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 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) [2022-01-11 05:49:46,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:49:46,365 INFO L93 Difference]: Finished difference Result 11198 states and 17279 transitions. [2022-01-11 05:49:46,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:49:46,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 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 [2022-01-11 05:49:46,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:49:46,376 INFO L225 Difference]: With dead ends: 11198 [2022-01-11 05:49:46,376 INFO L226 Difference]: Without dead ends: 5611 [2022-01-11 05:49:46,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:49:46,386 INFO L933 BasicCegarLoop]: 8629 mSDtfsCounter, 8616 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8616 SdHoareTripleChecker+Valid, 8644 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:49:46,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8616 Valid, 8644 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:49:46,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5611 states. [2022-01-11 05:49:46,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5611 to 5611. [2022-01-11 05:49:46,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5611 states, 5601 states have (on average 1.5427602213890377) internal successors, (8641), 5610 states have internal predecessors, (8641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:49:46,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5611 states to 5611 states and 8641 transitions. [2022-01-11 05:49:46,492 INFO L78 Accepts]: Start accepts. Automaton has 5611 states and 8641 transitions. Word has length 115 [2022-01-11 05:49:46,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:49:46,492 INFO L470 AbstractCegarLoop]: Abstraction has 5611 states and 8641 transitions. [2022-01-11 05:49:46,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 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) [2022-01-11 05:49:46,492 INFO L276 IsEmpty]: Start isEmpty. Operand 5611 states and 8641 transitions. [2022-01-11 05:49:46,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-11 05:49:46,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:49:46,498 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] [2022-01-11 05:49:46,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:49:46,498 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2022-01-11 05:49:46,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:49:46,499 INFO L85 PathProgramCache]: Analyzing trace with hash -858684439, now seen corresponding path program 1 times [2022-01-11 05:49:46,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:49:46,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14237625] [2022-01-11 05:49:46,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:49:46,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:49:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:49:46,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:49:46,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:49:46,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14237625] [2022-01-11 05:49:46,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14237625] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:49:46,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:49:46,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:49:46,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092864597] [2022-01-11 05:49:46,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:49:46,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:49:46,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:49:46,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:49:46,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:49:46,598 INFO L87 Difference]: Start difference. First operand 5611 states and 8641 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 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)