/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_BITWISE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec14_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:03:30,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:03:30,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:03:30,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:03:30,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:03:30,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:03:30,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:03:30,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:03:30,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:03:30,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:03:30,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:03:30,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:03:30,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:03:30,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:03:30,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:03:30,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:03:30,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:03:30,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:03:30,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:03:30,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:03:30,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:03:30,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:03:30,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:03:30,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:03:30,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:03:30,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:03:30,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:03:30,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:03:30,426 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:03:30,427 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:03:30,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:03:30,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:03:30,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:03:30,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:03:30,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:03:30,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:03:30,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:03:30,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:03:30,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:03:30,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:03:30,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:03:30,434 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:03:30,491 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:03:30,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:03:30,493 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:03:30,493 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:03:30,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:03:30,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:03:30,494 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:03:30,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:03:30,494 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:03:30,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:03:30,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:03:30,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:03:30,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:03:30,496 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:03:30,496 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:03:30,496 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:03:30,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:03:30,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:03:30,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:03:30,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:03:30,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:03:30,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:03:30,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:03:30,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:03:30,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:03:30,497 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:03:30,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:03:30,497 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:03:30,497 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:03:30,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:03:30,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:03:30,498 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:03:30,498 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:03:30,499 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:03:30,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:03:30,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:03:30,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:03:30,868 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:03:30,869 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:03:30,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product28.cil.c [2022-01-10 12:03:30,958 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70fa33582/6d83b54e3f604d40a8bbd2faf058c5cf/FLAG09bd138f7 [2022-01-10 12:03:31,524 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:03:31,525 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product28.cil.c [2022-01-10 12:03:31,552 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70fa33582/6d83b54e3f604d40a8bbd2faf058c5cf/FLAG09bd138f7 [2022-01-10 12:03:31,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70fa33582/6d83b54e3f604d40a8bbd2faf058c5cf [2022-01-10 12:03:31,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:03:31,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:03:31,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:03:31,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:03:31,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:03:31,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:03:31" (1/1) ... [2022-01-10 12:03:31,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a727793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:31, skipping insertion in model container [2022-01-10 12:03:31,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:03:31" (1/1) ... [2022-01-10 12:03:31,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:03:31,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:03:32,321 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_spec14_product28.cil.c[43703,43716] [2022-01-10 12:03:32,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:03:32,435 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:03:32,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:03:32,526 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_spec14_product28.cil.c[43703,43716] [2022-01-10 12:03:32,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:03:32,585 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:03:32,641 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_spec14_product28.cil.c[43703,43716] [2022-01-10 12:03:32,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:03:32,693 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:03:32,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:32 WrapperNode [2022-01-10 12:03:32,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:03:32,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:03:32,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:03:32,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:03:32,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:32" (1/1) ... [2022-01-10 12:03:32,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:32" (1/1) ... [2022-01-10 12:03:33,204 INFO L137 Inliner]: procedures = 96, calls = 341, calls flagged for inlining = 193, calls inlined = 1451, statements flattened = 44124 [2022-01-10 12:03:33,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:03:33,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:03:33,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:03:33,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:03:33,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:32" (1/1) ... [2022-01-10 12:03:33,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:32" (1/1) ... [2022-01-10 12:03:33,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:32" (1/1) ... [2022-01-10 12:03:33,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:32" (1/1) ... [2022-01-10 12:03:33,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:32" (1/1) ... [2022-01-10 12:03:34,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:32" (1/1) ... [2022-01-10 12:03:34,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:32" (1/1) ... [2022-01-10 12:03:34,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:03:34,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:03:34,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:03:34,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:03:34,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:32" (1/1) ... [2022-01-10 12:03:34,578 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:03:34,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:03:34,600 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 12:03:34,613 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 12:03:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:03:34,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:03:34,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:03:34,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:03:34,816 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:03:34,822 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:03:49,182 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:03:49,240 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:03:49,240 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:03:49,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:03:49 BoogieIcfgContainer [2022-01-10 12:03:49,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:03:49,253 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:03:49,253 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:03:49,255 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:03:49,257 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:03:49" (1/1) ... [2022-01-10 12:03:51,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:03:51 BasicIcfg [2022-01-10 12:03:51,568 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:03:51,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:03:51,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:03:51,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:03:51,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:03:31" (1/4) ... [2022-01-10 12:03:51,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b159b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:03:51, skipping insertion in model container [2022-01-10 12:03:51,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:32" (2/4) ... [2022-01-10 12:03:51,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b159b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:03:51, skipping insertion in model container [2022-01-10 12:03:51,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:03:49" (3/4) ... [2022-01-10 12:03:51,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b159b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:03:51, skipping insertion in model container [2022-01-10 12:03:51,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:03:51" (4/4) ... [2022-01-10 12:03:51,576 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product28.cil.cTransformedIcfg [2022-01-10 12:03:51,581 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:03:51,581 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 12:03:51,657 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:03:51,662 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 12:03:51,662 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 12:03:51,808 INFO L276 IsEmpty]: Start isEmpty. Operand has 12386 states, 12380 states have (on average 1.865751211631664) internal successors, (23098), 12385 states have internal predecessors, (23098), 0 states have call successors, (0), 0 states 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 12:03:51,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-10 12:03:51,821 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:51,822 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] [2022-01-10 12:03:51,822 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 12:03:51,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:51,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1476473923, now seen corresponding path program 1 times [2022-01-10 12:03:51,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:51,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084790188] [2022-01-10 12:03:51,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:51,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:52,174 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 12:03:52,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:52,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084790188] [2022-01-10 12:03:52,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084790188] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:52,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:52,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:03:52,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959318852] [2022-01-10 12:03:52,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:52,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:03:52,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:52,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:03:52,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:03:52,282 INFO L87 Difference]: Start difference. First operand has 12386 states, 12380 states have (on average 1.865751211631664) internal successors, (23098), 12385 states have internal predecessors, (23098), 0 states have call successors, (0), 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 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states 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 12:03:53,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:53,102 INFO L93 Difference]: Finished difference Result 29741 states and 55469 transitions. [2022-01-10 12:03:53,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:03:53,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2022-01-10 12:03:53,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:53,208 INFO L225 Difference]: With dead ends: 29741 [2022-01-10 12:03:53,209 INFO L226 Difference]: Without dead ends: 17354 [2022-01-10 12:03:53,238 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 12:03:53,252 INFO L933 BasicCegarLoop]: 32368 mSDtfsCounter, 23060 mSDsluCounter, 9301 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23060 SdHoareTripleChecker+Valid, 41669 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:53,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23060 Valid, 41669 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:03:53,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17354 states. [2022-01-10 12:03:53,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17354 to 12374. [2022-01-10 12:03:53,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12374 states, 12369 states have (on average 1.8652275850917617) internal successors, (23071), 12373 states have internal predecessors, (23071), 0 states have call successors, (0), 0 states 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 12:03:53,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12374 states to 12374 states and 23071 transitions. [2022-01-10 12:03:53,793 INFO L78 Accepts]: Start accepts. Automaton has 12374 states and 23071 transitions. Word has length 30 [2022-01-10 12:03:53,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:53,793 INFO L470 AbstractCegarLoop]: Abstraction has 12374 states and 23071 transitions. [2022-01-10 12:03:53,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states 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 12:03:53,794 INFO L276 IsEmpty]: Start isEmpty. Operand 12374 states and 23071 transitions. [2022-01-10 12:03:53,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 12:03:53,801 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:53,801 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] [2022-01-10 12:03:53,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:03:53,802 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 12:03:53,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:53,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1695073691, now seen corresponding path program 1 times [2022-01-10 12:03:53,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:53,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331145369] [2022-01-10 12:03:53,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:53,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:53,901 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 12:03:53,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:53,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331145369] [2022-01-10 12:03:53,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331145369] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:53,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:53,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:03:53,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833983219] [2022-01-10 12:03:53,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:53,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:03:53,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:53,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:03:53,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:03:53,911 INFO L87 Difference]: Start difference. First operand 12374 states and 23071 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states 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 12:03:54,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:54,480 INFO L93 Difference]: Finished difference Result 29643 states and 55271 transitions. [2022-01-10 12:03:54,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:03:54,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2022-01-10 12:03:54,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:54,542 INFO L225 Difference]: With dead ends: 29643 [2022-01-10 12:03:54,542 INFO L226 Difference]: Without dead ends: 17318 [2022-01-10 12:03:54,562 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 12:03:54,563 INFO L933 BasicCegarLoop]: 32225 mSDtfsCounter, 22959 mSDsluCounter, 9238 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22959 SdHoareTripleChecker+Valid, 41463 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:54,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22959 Valid, 41463 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:03:54,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17318 states. [2022-01-10 12:03:54,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17318 to 12374. [2022-01-10 12:03:54,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12374 states, 12369 states have (on average 1.8632064031045354) internal successors, (23046), 12373 states have internal predecessors, (23046), 0 states have call successors, (0), 0 states 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 12:03:54,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12374 states to 12374 states and 23046 transitions. [2022-01-10 12:03:54,990 INFO L78 Accepts]: Start accepts. Automaton has 12374 states and 23046 transitions. Word has length 35 [2022-01-10 12:03:54,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:54,992 INFO L470 AbstractCegarLoop]: Abstraction has 12374 states and 23046 transitions. [2022-01-10 12:03:54,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states 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 12:03:54,995 INFO L276 IsEmpty]: Start isEmpty. Operand 12374 states and 23046 transitions. [2022-01-10 12:03:54,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-10 12:03:55,002 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:55,002 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] [2022-01-10 12:03:55,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:03:55,002 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 12:03:55,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:55,003 INFO L85 PathProgramCache]: Analyzing trace with hash -550555822, now seen corresponding path program 1 times [2022-01-10 12:03:55,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:55,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005578954] [2022-01-10 12:03:55,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:55,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:55,136 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 12:03:55,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:55,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005578954] [2022-01-10 12:03:55,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005578954] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:55,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:55,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:03:55,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951503050] [2022-01-10 12:03:55,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:55,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:03:55,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:55,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:03:55,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:03:55,139 INFO L87 Difference]: Start difference. First operand 12374 states and 23046 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states 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 12:03:56,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:56,721 INFO L93 Difference]: Finished difference Result 51837 states and 96620 transitions. [2022-01-10 12:03:56,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:03:56,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2022-01-10 12:03:56,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:56,805 INFO L225 Difference]: With dead ends: 51837 [2022-01-10 12:03:56,806 INFO L226 Difference]: Without dead ends: 39491 [2022-01-10 12:03:56,837 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 12:03:56,841 INFO L933 BasicCegarLoop]: 64376 mSDtfsCounter, 68839 mSDsluCounter, 59937 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68839 SdHoareTripleChecker+Valid, 124313 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:56,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68839 Valid, 124313 Invalid, 60 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [12 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:03:56,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39491 states. [2022-01-10 12:03:57,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39491 to 12356. [2022-01-10 12:03:57,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12356 states, 12351 states have (on average 1.8639786252125334) internal successors, (23022), 12355 states have internal predecessors, (23022), 0 states have call successors, (0), 0 states 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 12:03:57,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12356 states to 12356 states and 23022 transitions. [2022-01-10 12:03:57,352 INFO L78 Accepts]: Start accepts. Automaton has 12356 states and 23022 transitions. Word has length 38 [2022-01-10 12:03:57,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:57,352 INFO L470 AbstractCegarLoop]: Abstraction has 12356 states and 23022 transitions. [2022-01-10 12:03:57,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states 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 12:03:57,353 INFO L276 IsEmpty]: Start isEmpty. Operand 12356 states and 23022 transitions. [2022-01-10 12:03:57,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 12:03:57,356 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:57,356 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 12:03:57,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:03:57,357 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:03:57,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:57,357 INFO L85 PathProgramCache]: Analyzing trace with hash -462044821, now seen corresponding path program 1 times [2022-01-10 12:03:57,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:57,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348579825] [2022-01-10 12:03:57,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:57,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:57,427 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 12:03:57,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:57,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348579825] [2022-01-10 12:03:57,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348579825] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:57,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:57,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:03:57,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401174954] [2022-01-10 12:03:57,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:57,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:03:57,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:57,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:03:57,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:03:57,429 INFO L87 Difference]: Start difference. First operand 12356 states and 23022 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 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 12:03:58,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:58,431 INFO L93 Difference]: Finished difference Result 49283 states and 91867 transitions. [2022-01-10 12:03:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:03:58,432 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 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 12:03:58,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:58,511 INFO L225 Difference]: With dead ends: 49283 [2022-01-10 12:03:58,511 INFO L226 Difference]: Without dead ends: 36949 [2022-01-10 12:03:58,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:03:58,542 INFO L933 BasicCegarLoop]: 36704 mSDtfsCounter, 68875 mSDsluCounter, 68811 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68875 SdHoareTripleChecker+Valid, 105515 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:58,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68875 Valid, 105515 Invalid, 47 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:03:58,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36949 states. [2022-01-10 12:03:59,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36949 to 12360. [2022-01-10 12:03:59,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12360 states, 12355 states have (on average 1.8636179684338325) internal successors, (23025), 12359 states have internal predecessors, (23025), 0 states have call successors, (0), 0 states 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 12:03:59,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12360 states to 12360 states and 23025 transitions. [2022-01-10 12:03:59,262 INFO L78 Accepts]: Start accepts. Automaton has 12360 states and 23025 transitions. Word has length 40 [2022-01-10 12:03:59,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:59,263 INFO L470 AbstractCegarLoop]: Abstraction has 12360 states and 23025 transitions. [2022-01-10 12:03:59,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 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 12:03:59,263 INFO L276 IsEmpty]: Start isEmpty. Operand 12360 states and 23025 transitions. [2022-01-10 12:03:59,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 12:03:59,264 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:59,264 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 12:03:59,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:03:59,265 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:03:59,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:59,265 INFO L85 PathProgramCache]: Analyzing trace with hash -716781366, now seen corresponding path program 1 times [2022-01-10 12:03:59,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:59,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976467087] [2022-01-10 12:03:59,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:59,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:59,376 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 12:03:59,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:59,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976467087] [2022-01-10 12:03:59,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976467087] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:59,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:59,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:03:59,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828918202] [2022-01-10 12:03:59,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:59,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 12:03:59,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:59,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 12:03:59,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:03:59,378 INFO L87 Difference]: Start difference. First operand 12360 states and 23025 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 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 12:04:00,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:00,816 INFO L93 Difference]: Finished difference Result 49499 states and 92250 transitions. [2022-01-10 12:04:00,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 12:04:00,816 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 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 12:04:00,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:00,896 INFO L225 Difference]: With dead ends: 49499 [2022-01-10 12:04:00,896 INFO L226 Difference]: Without dead ends: 37154 [2022-01-10 12:04:00,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:04:00,918 INFO L933 BasicCegarLoop]: 69222 mSDtfsCounter, 96670 mSDsluCounter, 64800 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96670 SdHoareTripleChecker+Valid, 134022 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:00,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96670 Valid, 134022 Invalid, 41 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:00,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37154 states. [2022-01-10 12:04:01,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37154 to 12352. [2022-01-10 12:04:01,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12352 states, 12347 states have (on average 1.8638535676682595) internal successors, (23013), 12351 states have internal predecessors, (23013), 0 states have call successors, (0), 0 states 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 12:04:01,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12352 states to 12352 states and 23013 transitions. [2022-01-10 12:04:01,608 INFO L78 Accepts]: Start accepts. Automaton has 12352 states and 23013 transitions. Word has length 40 [2022-01-10 12:04:01,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:01,610 INFO L470 AbstractCegarLoop]: Abstraction has 12352 states and 23013 transitions. [2022-01-10 12:04:01,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 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 12:04:01,610 INFO L276 IsEmpty]: Start isEmpty. Operand 12352 states and 23013 transitions. [2022-01-10 12:04:01,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-10 12:04:01,610 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:01,611 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] [2022-01-10 12:04:01,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:04:01,611 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:01,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:01,611 INFO L85 PathProgramCache]: Analyzing trace with hash -990202791, now seen corresponding path program 1 times [2022-01-10 12:04:01,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:01,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31728743] [2022-01-10 12:04:01,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:01,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:01,670 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 12:04:01,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:01,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31728743] [2022-01-10 12:04:01,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31728743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:01,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:01,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:04:01,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900864566] [2022-01-10 12:04:01,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:01,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:04:01,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:01,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:04:01,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:04:01,671 INFO L87 Difference]: Start difference. First operand 12352 states and 23013 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states 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 12:04:02,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:02,600 INFO L93 Difference]: Finished difference Result 34558 states and 64409 transitions. [2022-01-10 12:04:02,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 12:04:02,600 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2022-01-10 12:04:02,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:02,640 INFO L225 Difference]: With dead ends: 34558 [2022-01-10 12:04:02,640 INFO L226 Difference]: Without dead ends: 22234 [2022-01-10 12:04:02,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:04:02,653 INFO L933 BasicCegarLoop]: 22975 mSDtfsCounter, 87363 mSDsluCounter, 27657 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87363 SdHoareTripleChecker+Valid, 50632 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:02,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87363 Valid, 50632 Invalid, 56 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:02,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22234 states. [2022-01-10 12:04:02,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22234 to 12354. [2022-01-10 12:04:03,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12354 states, 12349 states have (on average 1.8636326828083245) internal successors, (23014), 12353 states have internal predecessors, (23014), 0 states have call successors, (0), 0 states 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 12:04:03,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12354 states to 12354 states and 23014 transitions. [2022-01-10 12:04:03,032 INFO L78 Accepts]: Start accepts. Automaton has 12354 states and 23014 transitions. Word has length 41 [2022-01-10 12:04:03,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:03,032 INFO L470 AbstractCegarLoop]: Abstraction has 12354 states and 23014 transitions. [2022-01-10 12:04:03,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states 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 12:04:03,033 INFO L276 IsEmpty]: Start isEmpty. Operand 12354 states and 23014 transitions. [2022-01-10 12:04:03,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-10 12:04:03,034 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:03,034 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] [2022-01-10 12:04:03,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:04:03,035 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:03,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:03,035 INFO L85 PathProgramCache]: Analyzing trace with hash -175569148, now seen corresponding path program 1 times [2022-01-10 12:04:03,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:03,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361146500] [2022-01-10 12:04:03,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:03,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:03,126 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 12:04:03,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:03,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361146500] [2022-01-10 12:04:03,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361146500] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:03,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:03,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:04:03,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385393544] [2022-01-10 12:04:03,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:03,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:04:03,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:03,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:04:03,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:04:03,128 INFO L87 Difference]: Start difference. First operand 12354 states and 23014 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states 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 12:04:06,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:06,649 INFO L93 Difference]: Finished difference Result 35177 states and 65550 transitions. [2022-01-10 12:04:06,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:04:06,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2022-01-10 12:04:06,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:06,688 INFO L225 Difference]: With dead ends: 35177 [2022-01-10 12:04:06,689 INFO L226 Difference]: Without dead ends: 22867 [2022-01-10 12:04:06,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:04:06,704 INFO L933 BasicCegarLoop]: 23013 mSDtfsCounter, 61930 mSDsluCounter, 19431 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61930 SdHoareTripleChecker+Valid, 42444 SdHoareTripleChecker+Invalid, 3047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:06,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61930 Valid, 42444 Invalid, 3047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [664 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-01-10 12:04:06,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22867 states. [2022-01-10 12:04:07,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22867 to 12354. [2022-01-10 12:04:07,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12354 states, 12349 states have (on average 1.8390153048829865) internal successors, (22710), 12353 states have internal predecessors, (22710), 0 states have call successors, (0), 0 states 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 12:04:07,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12354 states to 12354 states and 22710 transitions. [2022-01-10 12:04:07,371 INFO L78 Accepts]: Start accepts. Automaton has 12354 states and 22710 transitions. Word has length 42 [2022-01-10 12:04:07,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:07,371 INFO L470 AbstractCegarLoop]: Abstraction has 12354 states and 22710 transitions. [2022-01-10 12:04:07,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states 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 12:04:07,371 INFO L276 IsEmpty]: Start isEmpty. Operand 12354 states and 22710 transitions. [2022-01-10 12:04:07,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 12:04:07,372 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:07,372 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 12:04:07,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:04:07,372 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 12:04:07,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:07,372 INFO L85 PathProgramCache]: Analyzing trace with hash -450151604, now seen corresponding path program 1 times [2022-01-10 12:04:07,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:07,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999378998] [2022-01-10 12:04:07,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:07,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:07,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:07,539 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 12:04:07,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:07,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999378998] [2022-01-10 12:04:07,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999378998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:07,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:07,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:04:07,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791940435] [2022-01-10 12:04:07,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:07,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:04:07,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:07,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:04:07,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:04:07,541 INFO L87 Difference]: Start difference. First operand 12354 states and 22710 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 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 12:04:17,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:17,094 INFO L93 Difference]: Finished difference Result 145650 states and 270740 transitions. [2022-01-10 12:04:17,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 12:04:17,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 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 12:04:17,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:17,502 INFO L225 Difference]: With dead ends: 145650 [2022-01-10 12:04:17,502 INFO L226 Difference]: Without dead ends: 112329 [2022-01-10 12:04:17,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-01-10 12:04:17,572 INFO L933 BasicCegarLoop]: 22993 mSDtfsCounter, 328759 mSDsluCounter, 170957 mSDsCounter, 0 mSdLazyCounter, 3969 mSolverCounterSat, 1560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328759 SdHoareTripleChecker+Valid, 193950 SdHoareTripleChecker+Invalid, 5529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1560 IncrementalHoareTripleChecker+Valid, 3969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:17,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328759 Valid, 193950 Invalid, 5529 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1560 Valid, 3969 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-01-10 12:04:17,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112329 states. [2022-01-10 12:04:18,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112329 to 19734. [2022-01-10 12:04:18,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19734 states, 19729 states have (on average 1.8379542805007856) internal successors, (36261), 19733 states have internal predecessors, (36261), 0 states have call successors, (0), 0 states 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 12:04:18,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19734 states to 19734 states and 36261 transitions. [2022-01-10 12:04:18,960 INFO L78 Accepts]: Start accepts. Automaton has 19734 states and 36261 transitions. Word has length 46 [2022-01-10 12:04:18,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:18,961 INFO L470 AbstractCegarLoop]: Abstraction has 19734 states and 36261 transitions. [2022-01-10 12:04:18,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 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 12:04:18,961 INFO L276 IsEmpty]: Start isEmpty. Operand 19734 states and 36261 transitions. [2022-01-10 12:04:18,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-10 12:04:18,963 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:18,963 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] [2022-01-10 12:04:18,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:04:18,963 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 12:04:18,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:18,963 INFO L85 PathProgramCache]: Analyzing trace with hash 475457799, now seen corresponding path program 1 times [2022-01-10 12:04:18,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:18,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380333151] [2022-01-10 12:04:18,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:18,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:19,054 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 12:04:19,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:19,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380333151] [2022-01-10 12:04:19,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380333151] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:19,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:19,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:04:19,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629220322] [2022-01-10 12:04:19,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:19,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:04:19,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:19,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:04:19,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:04:19,056 INFO L87 Difference]: Start difference. First operand 19734 states and 36261 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states 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 12:04:19,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:19,662 INFO L93 Difference]: Finished difference Result 32046 states and 58885 transitions. [2022-01-10 12:04:19,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 12:04:19,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2022-01-10 12:04:19,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:19,682 INFO L225 Difference]: With dead ends: 32046 [2022-01-10 12:04:19,682 INFO L226 Difference]: Without dead ends: 12314 [2022-01-10 12:04:19,694 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 12:04:19,695 INFO L933 BasicCegarLoop]: 22631 mSDtfsCounter, 40621 mSDsluCounter, 18179 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40621 SdHoareTripleChecker+Valid, 40810 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:19,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40621 Valid, 40810 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:19,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12314 states. [2022-01-10 12:04:20,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12314 to 12314. [2022-01-10 12:04:20,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12314 states, 12312 states have (on average 1.8364197530864197) internal successors, (22610), 12313 states have internal predecessors, (22610), 0 states have call successors, (0), 0 states 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 12:04:20,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12314 states to 12314 states and 22610 transitions. [2022-01-10 12:04:20,226 INFO L78 Accepts]: Start accepts. Automaton has 12314 states and 22610 transitions. Word has length 49 [2022-01-10 12:04:20,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:20,227 INFO L470 AbstractCegarLoop]: Abstraction has 12314 states and 22610 transitions. [2022-01-10 12:04:20,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states 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 12:04:20,227 INFO L276 IsEmpty]: Start isEmpty. Operand 12314 states and 22610 transitions. [2022-01-10 12:04:20,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 12:04:20,242 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:20,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:04:20,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:04:20,242 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:20,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:20,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1722849905, now seen corresponding path program 1 times [2022-01-10 12:04:20,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:20,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946950495] [2022-01-10 12:04:20,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:20,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:20,344 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 12:04:20,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:20,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946950495] [2022-01-10 12:04:20,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946950495] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:20,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:20,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:04:20,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537896486] [2022-01-10 12:04:20,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:20,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:04:20,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:20,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:04:20,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:04:20,347 INFO L87 Difference]: Start difference. First operand 12314 states and 22610 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:20,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:20,997 INFO L93 Difference]: Finished difference Result 17264 states and 31673 transitions. [2022-01-10 12:04:20,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:04:20,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-01-10 12:04:20,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:21,023 INFO L225 Difference]: With dead ends: 17264 [2022-01-10 12:04:21,023 INFO L226 Difference]: Without dead ends: 12308 [2022-01-10 12:04:21,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:04:21,031 INFO L933 BasicCegarLoop]: 22598 mSDtfsCounter, 40547 mSDsluCounter, 31688 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40547 SdHoareTripleChecker+Valid, 54286 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:21,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40547 Valid, 54286 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:21,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12308 states. [2022-01-10 12:04:21,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12308 to 12308. [2022-01-10 12:04:21,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12308 states, 12306 states have (on average 1.8362587355761417) internal successors, (22597), 12307 states have internal predecessors, (22597), 0 states have call successors, (0), 0 states 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 12:04:21,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12308 states to 12308 states and 22597 transitions. [2022-01-10 12:04:21,614 INFO L78 Accepts]: Start accepts. Automaton has 12308 states and 22597 transitions. Word has length 104 [2022-01-10 12:04:21,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:21,614 INFO L470 AbstractCegarLoop]: Abstraction has 12308 states and 22597 transitions. [2022-01-10 12:04:21,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:21,614 INFO L276 IsEmpty]: Start isEmpty. Operand 12308 states and 22597 transitions. [2022-01-10 12:04:21,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-10 12:04:21,627 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:21,627 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] [2022-01-10 12:04:21,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:04:21,627 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:21,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:21,628 INFO L85 PathProgramCache]: Analyzing trace with hash -519580601, now seen corresponding path program 1 times [2022-01-10 12:04:21,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:21,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781354072] [2022-01-10 12:04:21,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:21,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:21,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:21,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:21,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781354072] [2022-01-10 12:04:21,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781354072] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:21,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:21,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 12:04:21,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542975046] [2022-01-10 12:04:21,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:21,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 12:04:21,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:21,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 12:04:21,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:04:21,706 INFO L87 Difference]: Start difference. First operand 12308 states and 22597 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 0 states have call successors, (0), 0 states 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 12:04:22,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:22,307 INFO L93 Difference]: Finished difference Result 17258 states and 31660 transitions. [2022-01-10 12:04:22,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 12:04:22,308 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2022-01-10 12:04:22,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:22,327 INFO L225 Difference]: With dead ends: 17258 [2022-01-10 12:04:22,327 INFO L226 Difference]: Without dead ends: 12302 [2022-01-10 12:04:22,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-10 12:04:22,334 INFO L933 BasicCegarLoop]: 22584 mSDtfsCounter, 27013 mSDsluCounter, 40737 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27013 SdHoareTripleChecker+Valid, 63321 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:22,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27013 Valid, 63321 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:22,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12302 states. [2022-01-10 12:04:22,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12302 to 12302. [2022-01-10 12:04:22,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12302 states, 12300 states have (on average 1.8360975609756098) internal successors, (22584), 12301 states have internal predecessors, (22584), 0 states have call successors, (0), 0 states 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 12:04:22,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12302 states to 12302 states and 22584 transitions. [2022-01-10 12:04:22,797 INFO L78 Accepts]: Start accepts. Automaton has 12302 states and 22584 transitions. Word has length 105 [2022-01-10 12:04:22,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:22,797 INFO L470 AbstractCegarLoop]: Abstraction has 12302 states and 22584 transitions. [2022-01-10 12:04:22,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 0 states have call successors, (0), 0 states 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 12:04:22,797 INFO L276 IsEmpty]: Start isEmpty. Operand 12302 states and 22584 transitions. [2022-01-10 12:04:22,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-10 12:04:22,807 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:22,807 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] [2022-01-10 12:04:22,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:04:22,808 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:22,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:22,808 INFO L85 PathProgramCache]: Analyzing trace with hash -590688539, now seen corresponding path program 1 times [2022-01-10 12:04:22,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:22,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494118811] [2022-01-10 12:04:22,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:22,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:22,879 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 12:04:22,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:22,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494118811] [2022-01-10 12:04:22,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494118811] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:22,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:22,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 12:04:22,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883617397] [2022-01-10 12:04:22,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:22,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:04:22,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:22,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:04:22,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:04:22,881 INFO L87 Difference]: Start difference. First operand 12302 states and 22584 transitions. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 0 states 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 12:04:23,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:23,524 INFO L93 Difference]: Finished difference Result 17252 states and 31647 transitions. [2022-01-10 12:04:23,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:04:23,524 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2022-01-10 12:04:23,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:23,543 INFO L225 Difference]: With dead ends: 17252 [2022-01-10 12:04:23,544 INFO L226 Difference]: Without dead ends: 12302 [2022-01-10 12:04:23,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-01-10 12:04:23,553 INFO L933 BasicCegarLoop]: 22564 mSDtfsCounter, 54216 mSDsluCounter, 58612 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54216 SdHoareTripleChecker+Valid, 81176 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:23,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54216 Valid, 81176 Invalid, 50 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:23,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12302 states. [2022-01-10 12:04:24,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12302 to 12302. [2022-01-10 12:04:24,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12302 states, 12300 states have (on average 1.8360162601626016) internal successors, (22583), 12301 states have internal predecessors, (22583), 0 states have call successors, (0), 0 states 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 12:04:24,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12302 states to 12302 states and 22583 transitions. [2022-01-10 12:04:24,078 INFO L78 Accepts]: Start accepts. Automaton has 12302 states and 22583 transitions. Word has length 105 [2022-01-10 12:04:24,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:24,078 INFO L470 AbstractCegarLoop]: Abstraction has 12302 states and 22583 transitions. [2022-01-10 12:04:24,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 0 states 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 12:04:24,078 INFO L276 IsEmpty]: Start isEmpty. Operand 12302 states and 22583 transitions. [2022-01-10 12:04:24,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 12:04:24,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:24,089 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] [2022-01-10 12:04:24,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 12:04:24,089 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:24,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:24,090 INFO L85 PathProgramCache]: Analyzing trace with hash 182530805, now seen corresponding path program 1 times [2022-01-10 12:04:24,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:24,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262652627] [2022-01-10 12:04:24,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:24,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:24,285 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 12:04:24,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:24,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262652627] [2022-01-10 12:04:24,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262652627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:24,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:24,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:04:24,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581734343] [2022-01-10 12:04:24,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:24,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:04:24,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:24,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:04:24,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:24,287 INFO L87 Difference]: Start difference. First operand 12302 states and 22583 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states 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 12:04:25,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:25,745 INFO L93 Difference]: Finished difference Result 33040 states and 60849 transitions. [2022-01-10 12:04:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:04:25,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2022-01-10 12:04:25,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:25,784 INFO L225 Difference]: With dead ends: 33040 [2022-01-10 12:04:25,784 INFO L226 Difference]: Without dead ends: 23191 [2022-01-10 12:04:25,798 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 12:04:25,799 INFO L933 BasicCegarLoop]: 31110 mSDtfsCounter, 21342 mSDsluCounter, 21137 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21342 SdHoareTripleChecker+Valid, 52247 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:25,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21342 Valid, 52247 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 12:04:25,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23191 states.