/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/elevator_spec2_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 17:56:34,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 17:56:34,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 17:56:34,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 17:56:34,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 17:56:34,507 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 17:56:34,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 17:56:34,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 17:56:34,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 17:56:34,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 17:56:34,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 17:56:34,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 17:56:34,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 17:56:34,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 17:56:34,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 17:56:34,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 17:56:34,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 17:56:34,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 17:56:34,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 17:56:34,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 17:56:34,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 17:56:34,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 17:56:34,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 17:56:34,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 17:56:34,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 17:56:34,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 17:56:34,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 17:56:34,569 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 17:56:34,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 17:56:34,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 17:56:34,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 17:56:34,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 17:56:34,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 17:56:34,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 17:56:34,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 17:56:34,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 17:56:34,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 17:56:34,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 17:56:34,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 17:56:34,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 17:56:34,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 17:56:34,574 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 17:56:34,602 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 17:56:34,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 17:56:34,603 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 17:56:34,603 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 17:56:34,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 17:56:34,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 17:56:34,604 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 17:56:34,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 17:56:34,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 17:56:34,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 17:56:34,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 17:56:34,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 17:56:34,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 17:56:34,605 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 17:56:34,605 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 17:56:34,605 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 17:56:34,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 17:56:34,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 17:56:34,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 17:56:34,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 17:56:34,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 17:56:34,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:56:34,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 17:56:34,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 17:56:34,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 17:56:34,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 17:56:34,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 17:56:34,606 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 17:56:34,606 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 17:56:34,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 17:56:34,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 17:56:34,606 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 17:56:34,607 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 17:56:34,607 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 17:56:34,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 17:56:34,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 17:56:34,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 17:56:34,814 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 17:56:34,815 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 17:56:34,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product28.cil.c [2022-01-10 17:56:34,864 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/907db6605/998888813415418b94d51ab84cd47c85/FLAG65c786364 [2022-01-10 17:56:35,338 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 17:56:35,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product28.cil.c [2022-01-10 17:56:35,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/907db6605/998888813415418b94d51ab84cd47c85/FLAG65c786364 [2022-01-10 17:56:35,648 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/907db6605/998888813415418b94d51ab84cd47c85 [2022-01-10 17:56:35,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 17:56:35,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 17:56:35,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 17:56:35,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 17:56:35,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 17:56:35,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:56:35" (1/1) ... [2022-01-10 17:56:35,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@555971af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:35, skipping insertion in model container [2022-01-10 17:56:35,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:56:35" (1/1) ... [2022-01-10 17:56:35,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 17:56:35,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:56:36,028 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/elevator_spec2_product28.cil.c[35981,35994] [2022-01-10 17:56:36,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:56:36,125 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 17:56:36,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:56:36,209 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/elevator_spec2_product28.cil.c[35981,35994] [2022-01-10 17:56:36,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:56:36,265 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 17:56:36,314 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/elevator_spec2_product28.cil.c[35981,35994] [2022-01-10 17:56:36,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:56:36,373 INFO L208 MainTranslator]: Completed translation [2022-01-10 17:56:36,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:36 WrapperNode [2022-01-10 17:56:36,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 17:56:36,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 17:56:36,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 17:56:36,375 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 17:56:36,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:36" (1/1) ... [2022-01-10 17:56:36,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:36" (1/1) ... [2022-01-10 17:56:36,576 INFO L137 Inliner]: procedures = 99, calls = 348, calls flagged for inlining = 200, calls inlined = 622, statements flattened = 18378 [2022-01-10 17:56:36,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 17:56:36,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 17:56:36,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 17:56:36,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 17:56:36,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:36" (1/1) ... [2022-01-10 17:56:36,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:36" (1/1) ... [2022-01-10 17:56:36,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:36" (1/1) ... [2022-01-10 17:56:36,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:36" (1/1) ... [2022-01-10 17:56:36,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:36" (1/1) ... [2022-01-10 17:56:36,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:36" (1/1) ... [2022-01-10 17:56:36,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:36" (1/1) ... [2022-01-10 17:56:36,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 17:56:36,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 17:56:36,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 17:56:36,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 17:56:36,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:36" (1/1) ... [2022-01-10 17:56:36,831 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:56:36,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:56:36,849 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 17:56:36,851 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 17:56:36,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 17:56:36,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 17:56:36,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 17:56:36,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 17:56:37,056 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 17:56:37,057 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 17:56:42,994 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 17:56:43,028 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 17:56:43,029 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 17:56:43,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:56:43 BoogieIcfgContainer [2022-01-10 17:56:43,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 17:56:43,041 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 17:56:43,041 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 17:56:43,042 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 17:56:43,044 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:56:43" (1/1) ... [2022-01-10 17:56:44,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:56:44 BasicIcfg [2022-01-10 17:56:44,091 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 17:56:44,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 17:56:44,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 17:56:44,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 17:56:44,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:56:35" (1/4) ... [2022-01-10 17:56:44,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6813a4e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:56:44, skipping insertion in model container [2022-01-10 17:56:44,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:36" (2/4) ... [2022-01-10 17:56:44,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6813a4e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:56:44, skipping insertion in model container [2022-01-10 17:56:44,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:56:43" (3/4) ... [2022-01-10 17:56:44,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6813a4e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:56:44, skipping insertion in model container [2022-01-10 17:56:44,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:56:44" (4/4) ... [2022-01-10 17:56:44,097 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product28.cil.cTransformedIcfg [2022-01-10 17:56:44,103 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 17:56:44,104 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 17:56:44,153 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 17:56:44,159 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 17:56:44,160 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 17:56:44,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 5178 states, 5172 states have (on average 1.8629156999226604) internal successors, (9635), 5177 states have internal predecessors, (9635), 0 states have call successors, (0), 0 states 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 17:56:44,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 17:56:44,230 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:44,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:56:44,231 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:44,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:44,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1045746956, now seen corresponding path program 1 times [2022-01-10 17:56:44,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:44,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942130741] [2022-01-10 17:56:44,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:44,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:44,594 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 17:56:44,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:44,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942130741] [2022-01-10 17:56:44,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942130741] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:44,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:44,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:44,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173614930] [2022-01-10 17:56:44,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:44,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:44,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:44,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:44,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:44,670 INFO L87 Difference]: Start difference. First operand has 5178 states, 5172 states have (on average 1.8629156999226604) internal successors, (9635), 5177 states have internal predecessors, (9635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:44,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:44,908 INFO L93 Difference]: Finished difference Result 10341 states and 19247 transitions. [2022-01-10 17:56:44,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:44,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-01-10 17:56:44,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:44,944 INFO L225 Difference]: With dead ends: 10341 [2022-01-10 17:56:44,945 INFO L226 Difference]: Without dead ends: 5167 [2022-01-10 17:56:44,958 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 17:56:44,963 INFO L933 BasicCegarLoop]: 9614 mSDtfsCounter, 9609 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9609 SdHoareTripleChecker+Valid, 9625 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:44,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9609 Valid, 9625 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:44,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5167 states. [2022-01-10 17:56:45,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5167 to 5167. [2022-01-10 17:56:45,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5162 states have (on average 1.8618752421542037) internal successors, (9611), 5166 states have internal predecessors, (9611), 0 states have call successors, (0), 0 states 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 17:56:45,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 9611 transitions. [2022-01-10 17:56:45,147 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 9611 transitions. Word has length 33 [2022-01-10 17:56:45,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:45,148 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 9611 transitions. [2022-01-10 17:56:45,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:45,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 9611 transitions. [2022-01-10 17:56:45,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 17:56:45,154 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:45,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:56:45,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 17:56:45,154 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:45,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:45,156 INFO L85 PathProgramCache]: Analyzing trace with hash 126547686, now seen corresponding path program 1 times [2022-01-10 17:56:45,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:45,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377933560] [2022-01-10 17:56:45,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:45,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:45,256 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 17:56:45,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:45,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377933560] [2022-01-10 17:56:45,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377933560] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:45,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:45,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:45,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341758901] [2022-01-10 17:56:45,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:45,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:45,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:45,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:45,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:45,264 INFO L87 Difference]: Start difference. First operand 5167 states and 9611 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:45,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:45,435 INFO L93 Difference]: Finished difference Result 10284 states and 19136 transitions. [2022-01-10 17:56:45,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:45,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-01-10 17:56:45,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:45,454 INFO L225 Difference]: With dead ends: 10284 [2022-01-10 17:56:45,455 INFO L226 Difference]: Without dead ends: 5167 [2022-01-10 17:56:45,464 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 17:56:45,465 INFO L933 BasicCegarLoop]: 9551 mSDtfsCounter, 9569 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9569 SdHoareTripleChecker+Valid, 9566 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:45,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9569 Valid, 9566 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:45,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5167 states. [2022-01-10 17:56:45,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5167 to 5167. [2022-01-10 17:56:45,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5162 states have (on average 1.8570321580782643) internal successors, (9586), 5166 states have internal predecessors, (9586), 0 states have call successors, (0), 0 states 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 17:56:45,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 9586 transitions. [2022-01-10 17:56:45,591 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 9586 transitions. Word has length 40 [2022-01-10 17:56:45,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:45,592 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 9586 transitions. [2022-01-10 17:56:45,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:45,595 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 9586 transitions. [2022-01-10 17:56:45,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-10 17:56:45,603 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:45,603 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] [2022-01-10 17:56:45,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 17:56:45,604 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:45,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:45,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1091468079, now seen corresponding path program 1 times [2022-01-10 17:56:45,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:45,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217932429] [2022-01-10 17:56:45,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:45,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:45,675 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 17:56:45,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:45,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217932429] [2022-01-10 17:56:45,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217932429] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:45,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:45,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:45,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844244813] [2022-01-10 17:56:45,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:45,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:45,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:45,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:45,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:45,678 INFO L87 Difference]: Start difference. First operand 5167 states and 9586 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states 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 17:56:46,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:46,007 INFO L93 Difference]: Finished difference Result 11601 states and 21582 transitions. [2022-01-10 17:56:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:46,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2022-01-10 17:56:46,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:46,039 INFO L225 Difference]: With dead ends: 11601 [2022-01-10 17:56:46,040 INFO L226 Difference]: Without dead ends: 8994 [2022-01-10 17:56:46,047 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 17:56:46,048 INFO L933 BasicCegarLoop]: 10519 mSDtfsCounter, 9526 mSDsluCounter, 7133 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9526 SdHoareTripleChecker+Valid, 17652 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:46,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9526 Valid, 17652 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:46,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8994 states. [2022-01-10 17:56:46,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8994 to 8994. [2022-01-10 17:56:46,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8989 states have (on average 1.8621648681722105) internal successors, (16739), 8993 states have internal predecessors, (16739), 0 states have call successors, (0), 0 states 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 17:56:46,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 16739 transitions. [2022-01-10 17:56:46,257 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 16739 transitions. Word has length 43 [2022-01-10 17:56:46,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:46,257 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 16739 transitions. [2022-01-10 17:56:46,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states 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 17:56:46,258 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 16739 transitions. [2022-01-10 17:56:46,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 17:56:46,259 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:46,259 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] [2022-01-10 17:56:46,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 17:56:46,260 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:46,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:46,260 INFO L85 PathProgramCache]: Analyzing trace with hash 473056047, now seen corresponding path program 1 times [2022-01-10 17:56:46,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:46,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735621701] [2022-01-10 17:56:46,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:46,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:46,326 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 17:56:46,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:46,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735621701] [2022-01-10 17:56:46,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735621701] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:46,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:46,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:46,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67915319] [2022-01-10 17:56:46,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:46,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:46,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:46,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:46,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:46,327 INFO L87 Difference]: Start difference. First operand 8994 states and 16739 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states 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 17:56:46,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:46,580 INFO L93 Difference]: Finished difference Result 21605 states and 40254 transitions. [2022-01-10 17:56:46,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:46,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2022-01-10 17:56:46,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:46,636 INFO L225 Difference]: With dead ends: 21605 [2022-01-10 17:56:46,637 INFO L226 Difference]: Without dead ends: 16415 [2022-01-10 17:56:46,651 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 17:56:46,652 INFO L933 BasicCegarLoop]: 9583 mSDtfsCounter, 9525 mSDsluCounter, 7136 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9525 SdHoareTripleChecker+Valid, 16719 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:46,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9525 Valid, 16719 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:46,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16415 states. [2022-01-10 17:56:47,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16415 to 16413. [2022-01-10 17:56:47,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16413 states, 16408 states have (on average 1.8648829839102876) internal successors, (30599), 16412 states have internal predecessors, (30599), 0 states have call successors, (0), 0 states 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 17:56:47,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16413 states to 16413 states and 30599 transitions. [2022-01-10 17:56:47,102 INFO L78 Accepts]: Start accepts. Automaton has 16413 states and 30599 transitions. Word has length 45 [2022-01-10 17:56:47,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:47,103 INFO L470 AbstractCegarLoop]: Abstraction has 16413 states and 30599 transitions. [2022-01-10 17:56:47,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states 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 17:56:47,104 INFO L276 IsEmpty]: Start isEmpty. Operand 16413 states and 30599 transitions. [2022-01-10 17:56:47,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 17:56:47,105 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:47,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:56:47,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 17:56:47,105 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:47,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:47,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1371621581, now seen corresponding path program 1 times [2022-01-10 17:56:47,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:47,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342113648] [2022-01-10 17:56:47,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:47,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:47,235 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 17:56:47,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:47,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342113648] [2022-01-10 17:56:47,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342113648] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:47,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:47,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:47,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502598820] [2022-01-10 17:56:47,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:47,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:47,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:47,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:47,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:47,238 INFO L87 Difference]: Start difference. First operand 16413 states and 30599 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:47,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:47,690 INFO L93 Difference]: Finished difference Result 41131 states and 76687 transitions. [2022-01-10 17:56:47,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:47,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-01-10 17:56:47,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:47,766 INFO L225 Difference]: With dead ends: 41131 [2022-01-10 17:56:47,766 INFO L226 Difference]: Without dead ends: 30784 [2022-01-10 17:56:47,790 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 17:56:47,791 INFO L933 BasicCegarLoop]: 9583 mSDtfsCounter, 9513 mSDsluCounter, 7139 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9513 SdHoareTripleChecker+Valid, 16722 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:47,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9513 Valid, 16722 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:47,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30784 states. [2022-01-10 17:56:48,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30784 to 30780. [2022-01-10 17:56:48,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30780 states, 30775 states have (on average 1.8659626320064988) internal successors, (57425), 30779 states have internal predecessors, (57425), 0 states have call successors, (0), 0 states 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 17:56:48,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30780 states to 30780 states and 57425 transitions. [2022-01-10 17:56:48,430 INFO L78 Accepts]: Start accepts. Automaton has 30780 states and 57425 transitions. Word has length 46 [2022-01-10 17:56:48,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:48,430 INFO L470 AbstractCegarLoop]: Abstraction has 30780 states and 57425 transitions. [2022-01-10 17:56:48,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:48,431 INFO L276 IsEmpty]: Start isEmpty. Operand 30780 states and 57425 transitions. [2022-01-10 17:56:48,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 17:56:48,432 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:48,432 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:56:48,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 17:56:48,432 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:48,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:48,433 INFO L85 PathProgramCache]: Analyzing trace with hash -429378086, now seen corresponding path program 1 times [2022-01-10 17:56:48,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:48,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086172202] [2022-01-10 17:56:48,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:48,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:48,479 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 17:56:48,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:48,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086172202] [2022-01-10 17:56:48,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086172202] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:48,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:48,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:48,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483806546] [2022-01-10 17:56:48,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:48,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:48,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:48,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:48,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:48,481 INFO L87 Difference]: Start difference. First operand 30780 states and 57425 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:49,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:49,348 INFO L93 Difference]: Finished difference Result 79219 states and 147728 transitions. [2022-01-10 17:56:49,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:49,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-01-10 17:56:49,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:49,492 INFO L225 Difference]: With dead ends: 79219 [2022-01-10 17:56:49,492 INFO L226 Difference]: Without dead ends: 58577 [2022-01-10 17:56:49,531 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 17:56:49,533 INFO L933 BasicCegarLoop]: 9583 mSDtfsCounter, 9512 mSDsluCounter, 7142 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9512 SdHoareTripleChecker+Valid, 16725 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:49,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9512 Valid, 16725 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:56:49,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58577 states. [2022-01-10 17:56:50,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58577 to 58571. [2022-01-10 17:56:50,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58571 states, 58566 states have (on average 1.8660485605982993) internal successors, (109287), 58570 states have internal predecessors, (109287), 0 states have call successors, (0), 0 states 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 17:56:50,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58571 states to 58571 states and 109287 transitions. [2022-01-10 17:56:50,901 INFO L78 Accepts]: Start accepts. Automaton has 58571 states and 109287 transitions. Word has length 47 [2022-01-10 17:56:50,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:50,901 INFO L470 AbstractCegarLoop]: Abstraction has 58571 states and 109287 transitions. [2022-01-10 17:56:50,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:50,902 INFO L276 IsEmpty]: Start isEmpty. Operand 58571 states and 109287 transitions. [2022-01-10 17:56:50,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-10 17:56:50,903 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:50,903 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:56:50,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 17:56:50,903 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:50,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:50,904 INFO L85 PathProgramCache]: Analyzing trace with hash -425792834, now seen corresponding path program 1 times [2022-01-10 17:56:50,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:50,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364004623] [2022-01-10 17:56:50,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:50,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:50,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:56:50,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:50,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364004623] [2022-01-10 17:56:50,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364004623] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:50,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:50,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:50,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065810888] [2022-01-10 17:56:50,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:50,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:50,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:50,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:50,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:50,962 INFO L87 Difference]: Start difference. First operand 58571 states and 109287 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:52,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:52,311 INFO L93 Difference]: Finished difference Result 153467 states and 286156 transitions. [2022-01-10 17:56:52,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:52,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-01-10 17:56:52,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:52,772 INFO L225 Difference]: With dead ends: 153467 [2022-01-10 17:56:52,772 INFO L226 Difference]: Without dead ends: 112267 [2022-01-10 17:56:52,834 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 17:56:52,835 INFO L933 BasicCegarLoop]: 9584 mSDtfsCounter, 9511 mSDsluCounter, 7145 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9511 SdHoareTripleChecker+Valid, 16729 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:52,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9511 Valid, 16729 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:52,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112267 states. [2022-01-10 17:56:54,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112267 to 112259. [2022-01-10 17:56:54,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112259 states, 112254 states have (on average 1.8655459939066759) internal successors, (209415), 112258 states have internal predecessors, (209415), 0 states have call successors, (0), 0 states 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 17:56:55,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112259 states to 112259 states and 209415 transitions. [2022-01-10 17:56:55,323 INFO L78 Accepts]: Start accepts. Automaton has 112259 states and 209415 transitions. Word has length 48 [2022-01-10 17:56:55,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:55,339 INFO L470 AbstractCegarLoop]: Abstraction has 112259 states and 209415 transitions. [2022-01-10 17:56:55,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:55,340 INFO L276 IsEmpty]: Start isEmpty. Operand 112259 states and 209415 transitions. [2022-01-10 17:56:55,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-10 17:56:55,427 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:55,427 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] [2022-01-10 17:56:55,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 17:56:55,427 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:55,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:55,428 INFO L85 PathProgramCache]: Analyzing trace with hash 2122938480, now seen corresponding path program 1 times [2022-01-10 17:56:55,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:55,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508354519] [2022-01-10 17:56:55,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:55,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:55,528 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 17:56:55,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:55,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508354519] [2022-01-10 17:56:55,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508354519] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:55,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:55,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:55,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439684618] [2022-01-10 17:56:55,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:55,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:55,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:55,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:55,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:55,530 INFO L87 Difference]: Start difference. First operand 112259 states and 209415 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 17:56:58,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:58,631 INFO L93 Difference]: Finished difference Result 229222 states and 427489 transitions. [2022-01-10 17:56:58,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:58,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-01-10 17:56:58,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:58,933 INFO L225 Difference]: With dead ends: 229222 [2022-01-10 17:56:58,934 INFO L226 Difference]: Without dead ends: 118993 [2022-01-10 17:56:59,024 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 17:56:59,028 INFO L933 BasicCegarLoop]: 10889 mSDtfsCounter, 7331 mSDsluCounter, 4787 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7331 SdHoareTripleChecker+Valid, 15676 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:59,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7331 Valid, 15676 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 17:56:59,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118993 states. [2022-01-10 17:57:01,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118993 to 112259. [2022-01-10 17:57:01,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112259 states, 112254 states have (on average 1.8414043152137118) internal successors, (206705), 112258 states have internal predecessors, (206705), 0 states have call successors, (0), 0 states 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 17:57:01,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112259 states to 112259 states and 206705 transitions. [2022-01-10 17:57:01,618 INFO L78 Accepts]: Start accepts. Automaton has 112259 states and 206705 transitions. Word has length 111 [2022-01-10 17:57:01,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:01,620 INFO L470 AbstractCegarLoop]: Abstraction has 112259 states and 206705 transitions. [2022-01-10 17:57:01,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 17:57:01,621 INFO L276 IsEmpty]: Start isEmpty. Operand 112259 states and 206705 transitions. [2022-01-10 17:57:01,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 17:57:01,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:01,661 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, 1] [2022-01-10 17:57:01,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 17:57:01,662 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:57:01,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:01,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1867309554, now seen corresponding path program 1 times [2022-01-10 17:57:01,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:01,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107400692] [2022-01-10 17:57:01,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:01,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:01,746 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 17:57:01,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:01,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107400692] [2022-01-10 17:57:01,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107400692] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:01,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:01,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:57:01,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879461349] [2022-01-10 17:57:01,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:01,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:57:01,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:01,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:57:01,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:57:01,748 INFO L87 Difference]: Start difference. First operand 112259 states and 206705 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 17:57:04,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:04,834 INFO L93 Difference]: Finished difference Result 233124 states and 429487 transitions. [2022-01-10 17:57:04,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:57:04,835 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 17:57:04,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:05,175 INFO L225 Difference]: With dead ends: 233124 [2022-01-10 17:57:05,176 INFO L226 Difference]: Without dead ends: 125467 [2022-01-10 17:57:05,284 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 17:57:05,286 INFO L933 BasicCegarLoop]: 11901 mSDtfsCounter, 6782 mSDsluCounter, 5423 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6782 SdHoareTripleChecker+Valid, 17324 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:05,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6782 Valid, 17324 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 17:57:05,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125467 states. [2022-01-10 17:57:07,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125467 to 112259. [2022-01-10 17:57:07,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112259 states, 112254 states have (on average 1.8206478165588753) internal successors, (204375), 112258 states have internal predecessors, (204375), 0 states have call successors, (0), 0 states 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 17:57:07,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112259 states to 112259 states and 204375 transitions. [2022-01-10 17:57:07,948 INFO L78 Accepts]: Start accepts. Automaton has 112259 states and 204375 transitions. Word has length 116 [2022-01-10 17:57:07,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:07,948 INFO L470 AbstractCegarLoop]: Abstraction has 112259 states and 204375 transitions. [2022-01-10 17:57:07,948 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 17:57:07,948 INFO L276 IsEmpty]: Start isEmpty. Operand 112259 states and 204375 transitions. [2022-01-10 17:57:07,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 17:57:07,986 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:07,987 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 17:57:07,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 17:57:07,987 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:57:07,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:07,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1920724553, now seen corresponding path program 1 times [2022-01-10 17:57:07,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:07,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279740599] [2022-01-10 17:57:07,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:07,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:08,051 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 17:57:08,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:08,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279740599] [2022-01-10 17:57:08,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279740599] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:08,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:08,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:57:08,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658380089] [2022-01-10 17:57:08,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:08,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:57:08,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:08,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:57:08,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:57:08,052 INFO L87 Difference]: Start difference. First operand 112259 states and 204375 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:11,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:11,172 INFO L93 Difference]: Finished difference Result 236372 states and 431351 transitions. [2022-01-10 17:57:11,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:57:11,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-01-10 17:57:11,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:11,470 INFO L225 Difference]: With dead ends: 236372 [2022-01-10 17:57:11,470 INFO L226 Difference]: Without dead ends: 133607 [2022-01-10 17:57:11,547 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 17:57:11,547 INFO L933 BasicCegarLoop]: 12697 mSDtfsCounter, 6477 mSDsluCounter, 6059 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6477 SdHoareTripleChecker+Valid, 18756 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:11,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6477 Valid, 18756 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 17:57:11,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133607 states. [2022-01-10 17:57:13,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133607 to 112259. [2022-01-10 17:57:13,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112259 states, 112254 states have (on average 1.8041673347943057) internal successors, (202525), 112258 states have internal predecessors, (202525), 0 states have call successors, (0), 0 states 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 17:57:13,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112259 states to 112259 states and 202525 transitions. [2022-01-10 17:57:13,965 INFO L78 Accepts]: Start accepts. Automaton has 112259 states and 202525 transitions. Word has length 120 [2022-01-10 17:57:13,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:13,965 INFO L470 AbstractCegarLoop]: Abstraction has 112259 states and 202525 transitions. [2022-01-10 17:57:13,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:13,965 INFO L276 IsEmpty]: Start isEmpty. Operand 112259 states and 202525 transitions. [2022-01-10 17:57:14,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 17:57:14,004 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:14,004 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 17:57:14,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 17:57:14,005 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:57:14,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:14,005 INFO L85 PathProgramCache]: Analyzing trace with hash -2146679696, now seen corresponding path program 1 times [2022-01-10 17:57:14,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:14,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078632261] [2022-01-10 17:57:14,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:14,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:14,052 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 17:57:14,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:14,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078632261] [2022-01-10 17:57:14,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078632261] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:14,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:14,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:57:14,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080284304] [2022-01-10 17:57:14,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:14,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:57:14,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:14,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:57:14,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:57:14,054 INFO L87 Difference]: Start difference. First operand 112259 states and 202525 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 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 17:57:17,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:17,180 INFO L93 Difference]: Finished difference Result 239260 states and 433975 transitions. [2022-01-10 17:57:17,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:57:17,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 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 17:57:17,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:17,463 INFO L225 Difference]: With dead ends: 239260 [2022-01-10 17:57:17,463 INFO L226 Difference]: Without dead ends: 143117 [2022-01-10 17:57:17,539 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 17:57:17,539 INFO L933 BasicCegarLoop]: 13473 mSDtfsCounter, 6212 mSDsluCounter, 6695 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6212 SdHoareTripleChecker+Valid, 20168 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:17,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6212 Valid, 20168 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 17:57:17,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143117 states. [2022-01-10 17:57:19,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143117 to 112259. [2022-01-10 17:57:19,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112259 states, 112254 states have (on average 1.7928537067721417) internal successors, (201255), 112258 states have internal predecessors, (201255), 0 states have call successors, (0), 0 states 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 17:57:20,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112259 states to 112259 states and 201255 transitions. [2022-01-10 17:57:20,281 INFO L78 Accepts]: Start accepts. Automaton has 112259 states and 201255 transitions. Word has length 123 [2022-01-10 17:57:20,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:20,281 INFO L470 AbstractCegarLoop]: Abstraction has 112259 states and 201255 transitions. [2022-01-10 17:57:20,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 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 17:57:20,282 INFO L276 IsEmpty]: Start isEmpty. Operand 112259 states and 201255 transitions. [2022-01-10 17:57:20,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-10 17:57:20,319 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:20,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:20,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 17:57:20,319 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:57:20,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:20,320 INFO L85 PathProgramCache]: Analyzing trace with hash -882377818, now seen corresponding path program 1 times [2022-01-10 17:57:20,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:20,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101896078] [2022-01-10 17:57:20,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:20,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:20,366 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 17:57:20,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:20,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101896078] [2022-01-10 17:57:20,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101896078] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:20,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:20,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:57:20,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911573797] [2022-01-10 17:57:20,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:20,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:57:20,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:20,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:57:20,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:57:20,368 INFO L87 Difference]: Start difference. First operand 112259 states and 201255 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:23,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:23,459 INFO L93 Difference]: Finished difference Result 242076 states and 438017 transitions. [2022-01-10 17:57:23,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:57:23,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2022-01-10 17:57:23,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:23,891 INFO L225 Difference]: With dead ends: 242076 [2022-01-10 17:57:23,891 INFO L226 Difference]: Without dead ends: 153243 [2022-01-10 17:57:23,962 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 17:57:23,963 INFO L933 BasicCegarLoop]: 14229 mSDtfsCounter, 5987 mSDsluCounter, 7331 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5987 SdHoareTripleChecker+Valid, 21560 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:23,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5987 Valid, 21560 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 17:57:24,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153243 states. [2022-01-10 17:57:26,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153243 to 112259. [2022-01-10 17:57:26,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112259 states, 112254 states have (on average 1.7871523509184528) internal successors, (200615), 112258 states have internal predecessors, (200615), 0 states have call successors, (0), 0 states 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 17:57:26,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112259 states to 112259 states and 200615 transitions. [2022-01-10 17:57:26,631 INFO L78 Accepts]: Start accepts. Automaton has 112259 states and 200615 transitions. Word has length 125 [2022-01-10 17:57:26,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:26,632 INFO L470 AbstractCegarLoop]: Abstraction has 112259 states and 200615 transitions. [2022-01-10 17:57:26,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:26,632 INFO L276 IsEmpty]: Start isEmpty. Operand 112259 states and 200615 transitions. [2022-01-10 17:57:26,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-10 17:57:26,668 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:26,668 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:26,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 17:57:26,669 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:57:26,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:26,669 INFO L85 PathProgramCache]: Analyzing trace with hash 148217505, now seen corresponding path program 1 times [2022-01-10 17:57:26,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:26,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716309814] [2022-01-10 17:57:26,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:26,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:26,764 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 17:57:26,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:26,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716309814] [2022-01-10 17:57:26,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716309814] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:26,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:26,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:57:26,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313737101] [2022-01-10 17:57:26,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:26,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:57:26,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:26,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:57:26,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:57:26,765 INFO L87 Difference]: Start difference. First operand 112259 states and 200615 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:31,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:31,259 INFO L93 Difference]: Finished difference Result 336677 states and 601723 transitions. [2022-01-10 17:57:31,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 17:57:31,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2022-01-10 17:57:31,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:31,746 INFO L225 Difference]: With dead ends: 336677 [2022-01-10 17:57:31,746 INFO L226 Difference]: Without dead ends: 224447 [2022-01-10 17:57:31,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 17:57:31,861 INFO L933 BasicCegarLoop]: 18477 mSDtfsCounter, 27718 mSDsluCounter, 9258 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27718 SdHoareTripleChecker+Valid, 27735 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:31,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27718 Valid, 27735 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:57:32,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224447 states.