/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.08.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 07:08:23,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 07:08:23,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 07:08:23,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 07:08:23,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 07:08:23,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 07:08:23,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 07:08:23,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 07:08:23,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 07:08:23,525 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 07:08:23,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 07:08:23,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 07:08:23,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 07:08:23,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 07:08:23,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 07:08:23,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 07:08:23,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 07:08:23,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 07:08:23,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 07:08:23,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 07:08:23,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 07:08:23,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 07:08:23,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 07:08:23,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 07:08:23,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 07:08:23,543 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 07:08:23,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 07:08:23,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 07:08:23,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 07:08:23,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 07:08:23,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 07:08:23,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 07:08:23,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 07:08:23,548 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 07:08:23,550 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 07:08:23,550 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 07:08:23,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 07:08:23,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 07:08:23,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 07:08:23,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 07:08:23,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 07:08:23,553 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 07:08:23,574 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 07:08:23,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 07:08:23,575 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 07:08:23,575 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 07:08:23,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 07:08:23,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 07:08:23,580 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 07:08:23,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 07:08:23,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 07:08:23,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 07:08:23,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 07:08:23,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 07:08:23,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 07:08:23,581 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 07:08:23,581 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 07:08:23,581 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 07:08:23,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 07:08:23,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 07:08:23,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 07:08:23,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 07:08:23,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 07:08:23,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:08:23,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 07:08:23,582 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 07:08:23,582 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 07:08:23,583 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 07:08:23,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 07:08:23,583 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 07:08:23,583 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 07:08:23,583 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 07:08:23,583 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 07:08:23,583 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 07:08:23,584 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 07:08:23,584 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 07:08:23,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 07:08:23,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 07:08:23,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 07:08:23,790 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 07:08:23,790 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 07:08:23,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.08.cil-2.c [2022-01-11 07:08:23,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c39d7a653/4e23931d286e42dc809d0d3fdb22c62c/FLAG7c9d91953 [2022-01-11 07:08:24,533 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 07:08:24,534 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.08.cil-2.c [2022-01-11 07:08:24,571 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c39d7a653/4e23931d286e42dc809d0d3fdb22c62c/FLAG7c9d91953 [2022-01-11 07:08:24,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c39d7a653/4e23931d286e42dc809d0d3fdb22c62c [2022-01-11 07:08:24,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 07:08:24,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 07:08:24,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 07:08:24,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 07:08:24,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 07:08:24,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:08:24" (1/1) ... [2022-01-11 07:08:24,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f15ba51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:24, skipping insertion in model container [2022-01-11 07:08:24,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:08:24" (1/1) ... [2022-01-11 07:08:24,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 07:08:25,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 07:08:26,263 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.08.cil-2.c[380323,380336] [2022-01-11 07:08:26,283 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.08.cil-2.c[383339,383352] [2022-01-11 07:08:26,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:08:26,474 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 07:08:27,049 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.08.cil-2.c[380323,380336] [2022-01-11 07:08:27,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.08.cil-2.c[383339,383352] [2022-01-11 07:08:27,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:08:27,116 INFO L208 MainTranslator]: Completed translation [2022-01-11 07:08:27,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:27 WrapperNode [2022-01-11 07:08:27,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 07:08:27,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 07:08:27,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 07:08:27,117 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 07:08:27,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:27" (1/1) ... [2022-01-11 07:08:27,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:27" (1/1) ... [2022-01-11 07:08:27,544 INFO L137 Inliner]: procedures = 61, calls = 66, calls flagged for inlining = 61, calls inlined = 168, statements flattened = 14705 [2022-01-11 07:08:27,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 07:08:27,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 07:08:27,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 07:08:27,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 07:08:27,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:27" (1/1) ... [2022-01-11 07:08:27,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:27" (1/1) ... [2022-01-11 07:08:27,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:27" (1/1) ... [2022-01-11 07:08:27,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:27" (1/1) ... [2022-01-11 07:08:27,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:27" (1/1) ... [2022-01-11 07:08:27,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:27" (1/1) ... [2022-01-11 07:08:27,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:27" (1/1) ... [2022-01-11 07:08:27,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 07:08:27,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 07:08:27,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 07:08:27,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 07:08:27,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:27" (1/1) ... [2022-01-11 07:08:27,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:08:27,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 07:08:28,008 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 07:08:28,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 07:08:28,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 07:08:28,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 07:08:28,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 07:08:28,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 07:08:28,154 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 07:08:28,155 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 07:08:35,170 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 07:08:35,197 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 07:08:35,197 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2022-01-11 07:08:35,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:08:35 BoogieIcfgContainer [2022-01-11 07:08:35,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 07:08:35,201 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 07:08:35,201 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 07:08:35,202 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 07:08:35,204 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:08:35" (1/1) ... [2022-01-11 07:08:36,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:08:36 BasicIcfg [2022-01-11 07:08:36,547 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 07:08:36,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 07:08:36,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 07:08:36,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 07:08:36,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 07:08:24" (1/4) ... [2022-01-11 07:08:36,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6183d520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:08:36, skipping insertion in model container [2022-01-11 07:08:36,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:08:27" (2/4) ... [2022-01-11 07:08:36,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6183d520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:08:36, skipping insertion in model container [2022-01-11 07:08:36,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:08:35" (3/4) ... [2022-01-11 07:08:36,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6183d520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 07:08:36, skipping insertion in model container [2022-01-11 07:08:36,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:08:36" (4/4) ... [2022-01-11 07:08:36,552 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.08.cil-2.cTransformedIcfg [2022-01-11 07:08:36,556 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 07:08:36,556 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 07:08:36,597 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 07:08:36,602 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 07:08:36,602 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 07:08:36,645 INFO L276 IsEmpty]: Start isEmpty. Operand has 3191 states, 3187 states have (on average 1.759962347034829) internal successors, (5609), 3190 states have internal predecessors, (5609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:36,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:36,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:36,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:36,663 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:36,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:36,666 INFO L85 PathProgramCache]: Analyzing trace with hash -512828016, now seen corresponding path program 1 times [2022-01-11 07:08:36,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:36,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911260764] [2022-01-11 07:08:36,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:36,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:36,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:36,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:36,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911260764] [2022-01-11 07:08:36,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911260764] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:36,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:36,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:36,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274696481] [2022-01-11 07:08:36,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:36,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:36,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:36,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:36,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:36,955 INFO L87 Difference]: Start difference. First operand has 3191 states, 3187 states have (on average 1.759962347034829) internal successors, (5609), 3190 states have internal predecessors, (5609), 0 states have call successors, (0), 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 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:37,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:37,210 INFO L93 Difference]: Finished difference Result 7191 states and 12433 transitions. [2022-01-11 07:08:37,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:37,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:37,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:37,233 INFO L225 Difference]: With dead ends: 7191 [2022-01-11 07:08:37,233 INFO L226 Difference]: Without dead ends: 3945 [2022-01-11 07:08:37,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:37,244 INFO L933 BasicCegarLoop]: 5514 mSDtfsCounter, 5407 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5407 SdHoareTripleChecker+Valid, 6820 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:37,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5407 Valid, 6820 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:08:37,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3945 states. [2022-01-11 07:08:37,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3945 to 3941. [2022-01-11 07:08:37,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6917216861350939) internal successors, (6662), 3940 states have internal predecessors, (6662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:37,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6662 transitions. [2022-01-11 07:08:37,398 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6662 transitions. Word has length 121 [2022-01-11 07:08:37,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:37,399 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6662 transitions. [2022-01-11 07:08:37,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:37,400 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6662 transitions. [2022-01-11 07:08:37,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:37,403 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:37,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:37,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 07:08:37,404 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:37,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:37,405 INFO L85 PathProgramCache]: Analyzing trace with hash -860662096, now seen corresponding path program 1 times [2022-01-11 07:08:37,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:37,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190466336] [2022-01-11 07:08:37,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:37,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:37,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:37,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:37,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190466336] [2022-01-11 07:08:37,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190466336] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:37,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:37,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:37,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136148101] [2022-01-11 07:08:37,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:37,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:37,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:37,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:37,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:37,514 INFO L87 Difference]: Start difference. First operand 3941 states and 6662 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:37,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:37,604 INFO L93 Difference]: Finished difference Result 5745 states and 9340 transitions. [2022-01-11 07:08:37,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:37,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:37,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:37,618 INFO L225 Difference]: With dead ends: 5745 [2022-01-11 07:08:37,619 INFO L226 Difference]: Without dead ends: 3941 [2022-01-11 07:08:37,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:37,626 INFO L933 BasicCegarLoop]: 5441 mSDtfsCounter, 5430 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5430 SdHoareTripleChecker+Valid, 5441 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:37,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5430 Valid, 5441 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:37,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-11 07:08:37,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-11 07:08:37,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6896901980700862) internal successors, (6654), 3940 states have internal predecessors, (6654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:37,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6654 transitions. [2022-01-11 07:08:37,700 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6654 transitions. Word has length 121 [2022-01-11 07:08:37,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:37,702 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6654 transitions. [2022-01-11 07:08:37,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:37,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6654 transitions. [2022-01-11 07:08:37,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:37,709 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:37,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:37,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 07:08:37,713 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:37,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:37,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1483422096, now seen corresponding path program 1 times [2022-01-11 07:08:37,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:37,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287835750] [2022-01-11 07:08:37,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:37,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:37,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:37,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:37,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287835750] [2022-01-11 07:08:37,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287835750] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:37,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:37,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:37,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236075344] [2022-01-11 07:08:37,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:37,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:37,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:37,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:37,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:37,763 INFO L87 Difference]: Start difference. First operand 3941 states and 6654 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:37,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:37,935 INFO L93 Difference]: Finished difference Result 5744 states and 9323 transitions. [2022-01-11 07:08:37,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:37,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:37,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:37,946 INFO L225 Difference]: With dead ends: 5744 [2022-01-11 07:08:37,947 INFO L226 Difference]: Without dead ends: 3941 [2022-01-11 07:08:37,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:37,949 INFO L933 BasicCegarLoop]: 5436 mSDtfsCounter, 5424 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5424 SdHoareTripleChecker+Valid, 5436 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:37,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5424 Valid, 5436 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:37,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-11 07:08:38,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-11 07:08:38,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6876587100050786) internal successors, (6646), 3940 states have internal predecessors, (6646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:38,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6646 transitions. [2022-01-11 07:08:38,020 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6646 transitions. Word has length 121 [2022-01-11 07:08:38,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:38,020 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6646 transitions. [2022-01-11 07:08:38,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:38,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6646 transitions. [2022-01-11 07:08:38,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:38,021 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:38,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:38,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 07:08:38,022 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:38,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:38,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1766098256, now seen corresponding path program 1 times [2022-01-11 07:08:38,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:38,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8502757] [2022-01-11 07:08:38,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:38,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:38,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:38,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:38,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8502757] [2022-01-11 07:08:38,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8502757] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:38,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:38,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:38,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902567832] [2022-01-11 07:08:38,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:38,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:38,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:38,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:38,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:38,084 INFO L87 Difference]: Start difference. First operand 3941 states and 6646 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:38,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:38,154 INFO L93 Difference]: Finished difference Result 5743 states and 9306 transitions. [2022-01-11 07:08:38,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:38,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:38,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:38,166 INFO L225 Difference]: With dead ends: 5743 [2022-01-11 07:08:38,166 INFO L226 Difference]: Without dead ends: 3941 [2022-01-11 07:08:38,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:38,176 INFO L933 BasicCegarLoop]: 5431 mSDtfsCounter, 5418 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5418 SdHoareTripleChecker+Valid, 5431 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:38,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5418 Valid, 5431 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:38,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-11 07:08:38,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-11 07:08:38,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6856272219400712) internal successors, (6638), 3940 states have internal predecessors, (6638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:38,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6638 transitions. [2022-01-11 07:08:38,272 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6638 transitions. Word has length 121 [2022-01-11 07:08:38,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:38,272 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6638 transitions. [2022-01-11 07:08:38,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:38,273 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6638 transitions. [2022-01-11 07:08:38,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:38,274 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:38,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:38,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 07:08:38,274 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:38,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:38,274 INFO L85 PathProgramCache]: Analyzing trace with hash -623995504, now seen corresponding path program 1 times [2022-01-11 07:08:38,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:38,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636319519] [2022-01-11 07:08:38,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:38,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:38,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:38,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:38,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636319519] [2022-01-11 07:08:38,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636319519] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:38,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:38,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:38,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404604575] [2022-01-11 07:08:38,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:38,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:38,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:38,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:38,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:38,331 INFO L87 Difference]: Start difference. First operand 3941 states and 6638 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:38,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:38,402 INFO L93 Difference]: Finished difference Result 5742 states and 9289 transitions. [2022-01-11 07:08:38,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:38,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:38,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:38,415 INFO L225 Difference]: With dead ends: 5742 [2022-01-11 07:08:38,415 INFO L226 Difference]: Without dead ends: 3941 [2022-01-11 07:08:38,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:38,421 INFO L933 BasicCegarLoop]: 5426 mSDtfsCounter, 5412 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5412 SdHoareTripleChecker+Valid, 5426 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:38,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5412 Valid, 5426 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:38,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-11 07:08:38,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-11 07:08:38,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6835957338750636) internal successors, (6630), 3940 states have internal predecessors, (6630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:38,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6630 transitions. [2022-01-11 07:08:38,505 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6630 transitions. Word has length 121 [2022-01-11 07:08:38,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:38,508 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6630 transitions. [2022-01-11 07:08:38,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:38,509 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6630 transitions. [2022-01-11 07:08:38,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:38,510 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:38,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:38,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 07:08:38,510 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:38,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:38,510 INFO L85 PathProgramCache]: Analyzing trace with hash -864248144, now seen corresponding path program 1 times [2022-01-11 07:08:38,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:38,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596635015] [2022-01-11 07:08:38,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:38,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:38,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:38,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:38,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596635015] [2022-01-11 07:08:38,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596635015] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:38,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:38,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:38,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146327403] [2022-01-11 07:08:38,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:38,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:38,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:38,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:38,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:38,558 INFO L87 Difference]: Start difference. First operand 3941 states and 6630 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:38,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:38,622 INFO L93 Difference]: Finished difference Result 5741 states and 9272 transitions. [2022-01-11 07:08:38,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:38,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:38,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:38,646 INFO L225 Difference]: With dead ends: 5741 [2022-01-11 07:08:38,646 INFO L226 Difference]: Without dead ends: 3941 [2022-01-11 07:08:38,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:38,651 INFO L933 BasicCegarLoop]: 5421 mSDtfsCounter, 5406 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5406 SdHoareTripleChecker+Valid, 5421 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:38,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5406 Valid, 5421 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:38,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-11 07:08:38,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-11 07:08:38,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.681564245810056) internal successors, (6622), 3940 states have internal predecessors, (6622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:38,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6622 transitions. [2022-01-11 07:08:38,728 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6622 transitions. Word has length 121 [2022-01-11 07:08:38,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:38,728 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6622 transitions. [2022-01-11 07:08:38,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:38,729 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6622 transitions. [2022-01-11 07:08:38,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:38,729 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:38,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:38,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 07:08:38,730 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:38,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:38,730 INFO L85 PathProgramCache]: Analyzing trace with hash 374927760, now seen corresponding path program 1 times [2022-01-11 07:08:38,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:38,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368650313] [2022-01-11 07:08:38,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:38,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:38,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:38,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:38,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368650313] [2022-01-11 07:08:38,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368650313] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:38,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:38,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:38,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000281202] [2022-01-11 07:08:38,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:38,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:38,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:38,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:38,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:38,779 INFO L87 Difference]: Start difference. First operand 3941 states and 6622 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:38,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:38,925 INFO L93 Difference]: Finished difference Result 5740 states and 9255 transitions. [2022-01-11 07:08:38,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:38,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:38,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:38,933 INFO L225 Difference]: With dead ends: 5740 [2022-01-11 07:08:38,933 INFO L226 Difference]: Without dead ends: 3941 [2022-01-11 07:08:38,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:38,936 INFO L933 BasicCegarLoop]: 5416 mSDtfsCounter, 5400 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5400 SdHoareTripleChecker+Valid, 5416 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:38,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5400 Valid, 5416 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:38,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-11 07:08:38,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-11 07:08:39,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6795327577450483) internal successors, (6614), 3940 states have internal predecessors, (6614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:39,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6614 transitions. [2022-01-11 07:08:39,007 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6614 transitions. Word has length 121 [2022-01-11 07:08:39,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:39,007 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6614 transitions. [2022-01-11 07:08:39,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:39,007 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6614 transitions. [2022-01-11 07:08:39,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:39,008 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:39,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:39,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 07:08:39,008 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:39,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:39,009 INFO L85 PathProgramCache]: Analyzing trace with hash 137806512, now seen corresponding path program 1 times [2022-01-11 07:08:39,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:39,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37198502] [2022-01-11 07:08:39,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:39,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:39,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:39,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:39,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37198502] [2022-01-11 07:08:39,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37198502] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:39,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:39,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:39,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169274174] [2022-01-11 07:08:39,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:39,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:39,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:39,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:39,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:39,040 INFO L87 Difference]: Start difference. First operand 3941 states and 6614 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:39,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:39,112 INFO L93 Difference]: Finished difference Result 5738 states and 9236 transitions. [2022-01-11 07:08:39,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:39,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:39,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:39,119 INFO L225 Difference]: With dead ends: 5738 [2022-01-11 07:08:39,120 INFO L226 Difference]: Without dead ends: 3941 [2022-01-11 07:08:39,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:39,123 INFO L933 BasicCegarLoop]: 5411 mSDtfsCounter, 5393 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5393 SdHoareTripleChecker+Valid, 5411 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:39,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5393 Valid, 5411 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:39,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-11 07:08:39,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-11 07:08:39,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6775012696800407) internal successors, (6606), 3940 states have internal predecessors, (6606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:39,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6606 transitions. [2022-01-11 07:08:39,208 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6606 transitions. Word has length 121 [2022-01-11 07:08:39,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:39,208 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6606 transitions. [2022-01-11 07:08:39,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:39,208 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6606 transitions. [2022-01-11 07:08:39,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:39,209 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:39,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:39,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 07:08:39,210 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:39,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:39,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1402362832, now seen corresponding path program 1 times [2022-01-11 07:08:39,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:39,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184613980] [2022-01-11 07:08:39,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:39,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:39,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:39,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:39,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184613980] [2022-01-11 07:08:39,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184613980] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:39,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:39,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:39,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695695988] [2022-01-11 07:08:39,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:39,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:39,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:39,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:39,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:39,248 INFO L87 Difference]: Start difference. First operand 3941 states and 6606 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:39,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:39,335 INFO L93 Difference]: Finished difference Result 5737 states and 9219 transitions. [2022-01-11 07:08:39,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:39,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:39,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:39,343 INFO L225 Difference]: With dead ends: 5737 [2022-01-11 07:08:39,343 INFO L226 Difference]: Without dead ends: 3941 [2022-01-11 07:08:39,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:39,348 INFO L933 BasicCegarLoop]: 5384 mSDtfsCounter, 5284 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5284 SdHoareTripleChecker+Valid, 5472 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:39,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5284 Valid, 5472 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:39,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-11 07:08:39,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-11 07:08:39,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.670391061452514) internal successors, (6578), 3940 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:39,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6578 transitions. [2022-01-11 07:08:39,427 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6578 transitions. Word has length 121 [2022-01-11 07:08:39,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:39,427 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6578 transitions. [2022-01-11 07:08:39,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:39,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6578 transitions. [2022-01-11 07:08:39,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:39,431 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:39,431 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:39,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 07:08:39,431 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:39,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:39,431 INFO L85 PathProgramCache]: Analyzing trace with hash 2031662383, now seen corresponding path program 1 times [2022-01-11 07:08:39,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:39,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935637775] [2022-01-11 07:08:39,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:39,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:39,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:39,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:39,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935637775] [2022-01-11 07:08:39,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935637775] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:39,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:39,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:39,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335419215] [2022-01-11 07:08:39,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:39,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:39,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:39,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:39,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:39,467 INFO L87 Difference]: Start difference. First operand 3941 states and 6578 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:39,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:39,559 INFO L93 Difference]: Finished difference Result 5736 states and 9162 transitions. [2022-01-11 07:08:39,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:39,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:39,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:39,567 INFO L225 Difference]: With dead ends: 5736 [2022-01-11 07:08:39,567 INFO L226 Difference]: Without dead ends: 3941 [2022-01-11 07:08:39,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:39,571 INFO L933 BasicCegarLoop]: 5368 mSDtfsCounter, 5268 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5268 SdHoareTripleChecker+Valid, 5455 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:39,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5268 Valid, 5455 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:39,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-11 07:08:39,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-11 07:08:39,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6632808532249872) internal successors, (6550), 3940 states have internal predecessors, (6550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:39,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6550 transitions. [2022-01-11 07:08:39,720 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6550 transitions. Word has length 121 [2022-01-11 07:08:39,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:39,720 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6550 transitions. [2022-01-11 07:08:39,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:39,721 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6550 transitions. [2022-01-11 07:08:39,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:39,722 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:39,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:39,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 07:08:39,722 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:39,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:39,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1076639758, now seen corresponding path program 1 times [2022-01-11 07:08:39,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:39,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780570585] [2022-01-11 07:08:39,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:39,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:39,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:39,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:39,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780570585] [2022-01-11 07:08:39,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780570585] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:39,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:39,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:39,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996795430] [2022-01-11 07:08:39,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:39,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:39,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:39,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:39,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:39,755 INFO L87 Difference]: Start difference. First operand 3941 states and 6550 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:39,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:39,868 INFO L93 Difference]: Finished difference Result 5735 states and 9105 transitions. [2022-01-11 07:08:39,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:39,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:39,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:39,875 INFO L225 Difference]: With dead ends: 5735 [2022-01-11 07:08:39,875 INFO L226 Difference]: Without dead ends: 3941 [2022-01-11 07:08:39,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:39,879 INFO L933 BasicCegarLoop]: 5352 mSDtfsCounter, 5252 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5252 SdHoareTripleChecker+Valid, 5438 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:39,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5252 Valid, 5438 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:39,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-11 07:08:39,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-11 07:08:39,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6561706449974607) internal successors, (6522), 3940 states have internal predecessors, (6522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:39,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6522 transitions. [2022-01-11 07:08:39,981 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6522 transitions. Word has length 121 [2022-01-11 07:08:39,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:39,981 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6522 transitions. [2022-01-11 07:08:39,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:39,982 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6522 transitions. [2022-01-11 07:08:39,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:39,982 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:39,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:39,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 07:08:39,983 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:39,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:39,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1468551149, now seen corresponding path program 1 times [2022-01-11 07:08:39,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:39,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668252605] [2022-01-11 07:08:39,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:39,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:40,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:40,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:40,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668252605] [2022-01-11 07:08:40,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668252605] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:40,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:40,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:40,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854311886] [2022-01-11 07:08:40,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:40,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:40,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:40,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:40,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:40,029 INFO L87 Difference]: Start difference. First operand 3941 states and 6522 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:40,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:40,142 INFO L93 Difference]: Finished difference Result 5734 states and 9048 transitions. [2022-01-11 07:08:40,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:40,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:40,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:40,149 INFO L225 Difference]: With dead ends: 5734 [2022-01-11 07:08:40,149 INFO L226 Difference]: Without dead ends: 3941 [2022-01-11 07:08:40,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:40,153 INFO L933 BasicCegarLoop]: 5336 mSDtfsCounter, 5236 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5236 SdHoareTripleChecker+Valid, 5421 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:40,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5236 Valid, 5421 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:40,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-11 07:08:40,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-11 07:08:40,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.649060436769934) internal successors, (6494), 3940 states have internal predecessors, (6494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:40,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6494 transitions. [2022-01-11 07:08:40,256 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6494 transitions. Word has length 121 [2022-01-11 07:08:40,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:40,256 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6494 transitions. [2022-01-11 07:08:40,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:40,257 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6494 transitions. [2022-01-11 07:08:40,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:40,258 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:40,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:40,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 07:08:40,258 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:40,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:40,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1578041676, now seen corresponding path program 1 times [2022-01-11 07:08:40,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:40,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838979028] [2022-01-11 07:08:40,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:40,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:40,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:40,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:40,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838979028] [2022-01-11 07:08:40,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838979028] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:40,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:40,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:40,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531357920] [2022-01-11 07:08:40,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:40,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:40,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:40,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:40,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:40,292 INFO L87 Difference]: Start difference. First operand 3941 states and 6494 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:40,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:40,412 INFO L93 Difference]: Finished difference Result 5733 states and 8991 transitions. [2022-01-11 07:08:40,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:40,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:40,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:40,419 INFO L225 Difference]: With dead ends: 5733 [2022-01-11 07:08:40,420 INFO L226 Difference]: Without dead ends: 3941 [2022-01-11 07:08:40,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:40,426 INFO L933 BasicCegarLoop]: 5320 mSDtfsCounter, 5220 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5220 SdHoareTripleChecker+Valid, 5404 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:40,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5220 Valid, 5404 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:40,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-11 07:08:40,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-11 07:08:40,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6419502285424072) internal successors, (6466), 3940 states have internal predecessors, (6466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:40,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6466 transitions. [2022-01-11 07:08:40,533 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6466 transitions. Word has length 121 [2022-01-11 07:08:40,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:40,534 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6466 transitions. [2022-01-11 07:08:40,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:40,534 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6466 transitions. [2022-01-11 07:08:40,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:40,535 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:40,535 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:40,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 07:08:40,536 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:40,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:40,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1198036907, now seen corresponding path program 1 times [2022-01-11 07:08:40,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:40,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704528214] [2022-01-11 07:08:40,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:40,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:40,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:40,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:40,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704528214] [2022-01-11 07:08:40,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704528214] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:40,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:40,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:40,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441933894] [2022-01-11 07:08:40,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:40,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:40,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:40,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:40,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:40,571 INFO L87 Difference]: Start difference. First operand 3941 states and 6466 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:40,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:40,700 INFO L93 Difference]: Finished difference Result 5731 states and 8932 transitions. [2022-01-11 07:08:40,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:40,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:40,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:40,708 INFO L225 Difference]: With dead ends: 5731 [2022-01-11 07:08:40,708 INFO L226 Difference]: Without dead ends: 3941 [2022-01-11 07:08:40,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:40,712 INFO L933 BasicCegarLoop]: 5304 mSDtfsCounter, 5203 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5203 SdHoareTripleChecker+Valid, 5387 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:40,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5203 Valid, 5387 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:40,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-11 07:08:40,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-11 07:08:40,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6348400203148807) internal successors, (6438), 3940 states have internal predecessors, (6438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:40,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6438 transitions. [2022-01-11 07:08:40,844 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6438 transitions. Word has length 121 [2022-01-11 07:08:40,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:40,844 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6438 transitions. [2022-01-11 07:08:40,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:40,844 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6438 transitions. [2022-01-11 07:08:40,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:40,845 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:40,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:40,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 07:08:40,846 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:40,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:40,846 INFO L85 PathProgramCache]: Analyzing trace with hash -117216118, now seen corresponding path program 1 times [2022-01-11 07:08:40,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:40,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098692814] [2022-01-11 07:08:40,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:40,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:40,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:40,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:40,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098692814] [2022-01-11 07:08:40,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098692814] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:40,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:40,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:40,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331547366] [2022-01-11 07:08:40,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:40,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:40,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:40,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:40,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:40,881 INFO L87 Difference]: Start difference. First operand 3941 states and 6438 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:40,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:40,983 INFO L93 Difference]: Finished difference Result 5730 states and 8875 transitions. [2022-01-11 07:08:40,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:40,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:40,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:40,991 INFO L225 Difference]: With dead ends: 5730 [2022-01-11 07:08:40,991 INFO L226 Difference]: Without dead ends: 3941 [2022-01-11 07:08:40,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:40,996 INFO L933 BasicCegarLoop]: 5288 mSDtfsCounter, 5187 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5187 SdHoareTripleChecker+Valid, 5370 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:40,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5187 Valid, 5370 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:41,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-11 07:08:41,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-11 07:08:41,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.627729812087354) internal successors, (6410), 3940 states have internal predecessors, (6410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:41,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6410 transitions. [2022-01-11 07:08:41,087 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6410 transitions. Word has length 121 [2022-01-11 07:08:41,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:41,087 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6410 transitions. [2022-01-11 07:08:41,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:41,087 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6410 transitions. [2022-01-11 07:08:41,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:41,088 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:41,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:41,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 07:08:41,088 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:41,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:41,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1575503127, now seen corresponding path program 1 times [2022-01-11 07:08:41,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:41,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955452577] [2022-01-11 07:08:41,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:41,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:41,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:41,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:41,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955452577] [2022-01-11 07:08:41,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955452577] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:41,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:41,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:41,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852644646] [2022-01-11 07:08:41,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:41,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:41,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:41,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:41,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:41,125 INFO L87 Difference]: Start difference. First operand 3941 states and 6410 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:41,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:41,226 INFO L93 Difference]: Finished difference Result 5729 states and 8818 transitions. [2022-01-11 07:08:41,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:41,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:41,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:41,233 INFO L225 Difference]: With dead ends: 5729 [2022-01-11 07:08:41,233 INFO L226 Difference]: Without dead ends: 3941 [2022-01-11 07:08:41,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:41,236 INFO L933 BasicCegarLoop]: 5272 mSDtfsCounter, 5171 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5171 SdHoareTripleChecker+Valid, 5353 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:41,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5171 Valid, 5353 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:41,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-11 07:08:41,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-11 07:08:41,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6206196038598273) internal successors, (6382), 3940 states have internal predecessors, (6382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:41,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6382 transitions. [2022-01-11 07:08:41,335 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6382 transitions. Word has length 121 [2022-01-11 07:08:41,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:41,336 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6382 transitions. [2022-01-11 07:08:41,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:41,336 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6382 transitions. [2022-01-11 07:08:41,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:41,337 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:41,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:41,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 07:08:41,337 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:41,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:41,338 INFO L85 PathProgramCache]: Analyzing trace with hash -128479672, now seen corresponding path program 1 times [2022-01-11 07:08:41,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:41,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131679550] [2022-01-11 07:08:41,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:41,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:41,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:41,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:41,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131679550] [2022-01-11 07:08:41,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131679550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:41,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:41,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:08:41,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315839129] [2022-01-11 07:08:41,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:41,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:08:41,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:41,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:08:41,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:08:41,395 INFO L87 Difference]: Start difference. First operand 3941 states and 6382 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:41,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:41,646 INFO L93 Difference]: Finished difference Result 6521 states and 9869 transitions. [2022-01-11 07:08:41,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:08:41,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:41,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:41,655 INFO L225 Difference]: With dead ends: 6521 [2022-01-11 07:08:41,656 INFO L226 Difference]: Without dead ends: 4747 [2022-01-11 07:08:41,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:08:41,659 INFO L933 BasicCegarLoop]: 5378 mSDtfsCounter, 3636 mSDsluCounter, 13597 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3636 SdHoareTripleChecker+Valid, 18975 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:41,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3636 Valid, 18975 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:08:41,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4747 states. [2022-01-11 07:08:41,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4747 to 3947. [2022-01-11 07:08:41,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 3944 states have (on average 1.614604462474645) internal successors, (6368), 3946 states have internal predecessors, (6368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:41,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 6368 transitions. [2022-01-11 07:08:41,803 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 6368 transitions. Word has length 121 [2022-01-11 07:08:41,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:41,804 INFO L470 AbstractCegarLoop]: Abstraction has 3947 states and 6368 transitions. [2022-01-11 07:08:41,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:41,804 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 6368 transitions. [2022-01-11 07:08:41,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:41,805 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:41,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:41,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 07:08:41,805 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:41,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:41,806 INFO L85 PathProgramCache]: Analyzing trace with hash -114946871, now seen corresponding path program 1 times [2022-01-11 07:08:41,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:41,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055494873] [2022-01-11 07:08:41,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:41,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:41,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:41,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:41,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055494873] [2022-01-11 07:08:41,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055494873] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:41,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:41,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:41,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016817023] [2022-01-11 07:08:41,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:41,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:41,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:41,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:41,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:41,855 INFO L87 Difference]: Start difference. First operand 3947 states and 6368 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:42,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:42,108 INFO L93 Difference]: Finished difference Result 7261 states and 10738 transitions. [2022-01-11 07:08:42,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:42,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:42,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:42,118 INFO L225 Difference]: With dead ends: 7261 [2022-01-11 07:08:42,118 INFO L226 Difference]: Without dead ends: 5504 [2022-01-11 07:08:42,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:42,123 INFO L933 BasicCegarLoop]: 5262 mSDtfsCounter, 5091 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5091 SdHoareTripleChecker+Valid, 6408 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:42,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5091 Valid, 6408 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:42,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5504 states. [2022-01-11 07:08:42,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5504 to 5496. [2022-01-11 07:08:42,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5496 states, 5493 states have (on average 1.5273985071909704) internal successors, (8390), 5495 states have internal predecessors, (8390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:42,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5496 states to 5496 states and 8390 transitions. [2022-01-11 07:08:42,345 INFO L78 Accepts]: Start accepts. Automaton has 5496 states and 8390 transitions. Word has length 121 [2022-01-11 07:08:42,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:42,345 INFO L470 AbstractCegarLoop]: Abstraction has 5496 states and 8390 transitions. [2022-01-11 07:08:42,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:42,345 INFO L276 IsEmpty]: Start isEmpty. Operand 5496 states and 8390 transitions. [2022-01-11 07:08:42,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:42,346 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:42,346 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:42,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 07:08:42,347 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:42,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:42,347 INFO L85 PathProgramCache]: Analyzing trace with hash 556186504, now seen corresponding path program 1 times [2022-01-11 07:08:42,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:42,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578977908] [2022-01-11 07:08:42,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:42,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:42,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:42,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:42,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578977908] [2022-01-11 07:08:42,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578977908] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:42,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:42,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:08:42,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586149707] [2022-01-11 07:08:42,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:42,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:08:42,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:42,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:08:42,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:08:42,402 INFO L87 Difference]: Start difference. First operand 5496 states and 8390 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:42,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:42,770 INFO L93 Difference]: Finished difference Result 10159 states and 14571 transitions. [2022-01-11 07:08:42,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:08:42,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:42,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:42,785 INFO L225 Difference]: With dead ends: 10159 [2022-01-11 07:08:42,785 INFO L226 Difference]: Without dead ends: 6864 [2022-01-11 07:08:42,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:08:42,792 INFO L933 BasicCegarLoop]: 5227 mSDtfsCounter, 2989 mSDsluCounter, 14897 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2989 SdHoareTripleChecker+Valid, 20124 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:42,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2989 Valid, 20124 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:08:42,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6864 states. [2022-01-11 07:08:42,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6864 to 5502. [2022-01-11 07:08:42,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5502 states, 5499 states have (on average 1.5197308601563921) internal successors, (8357), 5501 states have internal predecessors, (8357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:43,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5502 states to 5502 states and 8357 transitions. [2022-01-11 07:08:43,000 INFO L78 Accepts]: Start accepts. Automaton has 5502 states and 8357 transitions. Word has length 121 [2022-01-11 07:08:43,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:43,001 INFO L470 AbstractCegarLoop]: Abstraction has 5502 states and 8357 transitions. [2022-01-11 07:08:43,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:43,001 INFO L276 IsEmpty]: Start isEmpty. Operand 5502 states and 8357 transitions. [2022-01-11 07:08:43,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:43,002 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:43,002 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:43,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 07:08:43,002 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:43,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:43,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1767841335, now seen corresponding path program 1 times [2022-01-11 07:08:43,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:43,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595774509] [2022-01-11 07:08:43,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:43,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:43,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:43,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:43,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595774509] [2022-01-11 07:08:43,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595774509] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:43,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:43,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:08:43,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19507693] [2022-01-11 07:08:43,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:43,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:08:43,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:43,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:08:43,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:08:43,063 INFO L87 Difference]: Start difference. First operand 5502 states and 8357 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:43,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:43,517 INFO L93 Difference]: Finished difference Result 11618 states and 16397 transitions. [2022-01-11 07:08:43,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:08:43,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:43,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:43,533 INFO L225 Difference]: With dead ends: 11618 [2022-01-11 07:08:43,533 INFO L226 Difference]: Without dead ends: 8324 [2022-01-11 07:08:43,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:08:43,541 INFO L933 BasicCegarLoop]: 5241 mSDtfsCounter, 2821 mSDsluCounter, 15131 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2821 SdHoareTripleChecker+Valid, 20372 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:43,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2821 Valid, 20372 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:08:43,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8324 states. [2022-01-11 07:08:43,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8324 to 5514. [2022-01-11 07:08:43,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5514 states, 5511 states have (on average 1.5118853202685538) internal successors, (8332), 5513 states have internal predecessors, (8332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:43,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5514 states to 5514 states and 8332 transitions. [2022-01-11 07:08:43,761 INFO L78 Accepts]: Start accepts. Automaton has 5514 states and 8332 transitions. Word has length 121 [2022-01-11 07:08:43,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:43,761 INFO L470 AbstractCegarLoop]: Abstraction has 5514 states and 8332 transitions. [2022-01-11 07:08:43,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:43,761 INFO L276 IsEmpty]: Start isEmpty. Operand 5514 states and 8332 transitions. [2022-01-11 07:08:43,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:43,762 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:43,762 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:43,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 07:08:43,762 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:43,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:43,763 INFO L85 PathProgramCache]: Analyzing trace with hash 591465674, now seen corresponding path program 1 times [2022-01-11 07:08:43,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:43,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718570539] [2022-01-11 07:08:43,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:43,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:43,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:43,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:43,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718570539] [2022-01-11 07:08:43,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718570539] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:43,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:43,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:43,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416882046] [2022-01-11 07:08:43,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:43,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:43,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:43,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:43,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:43,801 INFO L87 Difference]: Start difference. First operand 5514 states and 8332 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:44,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:44,001 INFO L93 Difference]: Finished difference Result 8885 states and 12674 transitions. [2022-01-11 07:08:44,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:44,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:44,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:44,011 INFO L225 Difference]: With dead ends: 8885 [2022-01-11 07:08:44,011 INFO L226 Difference]: Without dead ends: 5514 [2022-01-11 07:08:44,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:44,016 INFO L933 BasicCegarLoop]: 5242 mSDtfsCounter, 5152 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5152 SdHoareTripleChecker+Valid, 5242 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:44,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5152 Valid, 5242 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:44,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5514 states. [2022-01-11 07:08:44,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5514 to 5514. [2022-01-11 07:08:44,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5514 states, 5511 states have (on average 1.509344946470695) internal successors, (8318), 5513 states have internal predecessors, (8318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:44,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5514 states to 5514 states and 8318 transitions. [2022-01-11 07:08:44,206 INFO L78 Accepts]: Start accepts. Automaton has 5514 states and 8318 transitions. Word has length 121 [2022-01-11 07:08:44,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:44,206 INFO L470 AbstractCegarLoop]: Abstraction has 5514 states and 8318 transitions. [2022-01-11 07:08:44,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:44,206 INFO L276 IsEmpty]: Start isEmpty. Operand 5514 states and 8318 transitions. [2022-01-11 07:08:44,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:44,207 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:44,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:44,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 07:08:44,208 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:44,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:44,208 INFO L85 PathProgramCache]: Analyzing trace with hash 622485481, now seen corresponding path program 1 times [2022-01-11 07:08:44,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:44,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746141312] [2022-01-11 07:08:44,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:44,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:44,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:44,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:44,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746141312] [2022-01-11 07:08:44,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746141312] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:44,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:44,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:44,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238864204] [2022-01-11 07:08:44,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:44,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:44,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:44,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:44,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:44,245 INFO L87 Difference]: Start difference. First operand 5514 states and 8318 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:44,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:44,455 INFO L93 Difference]: Finished difference Result 8878 states and 12639 transitions. [2022-01-11 07:08:44,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:44,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:44,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:44,463 INFO L225 Difference]: With dead ends: 8878 [2022-01-11 07:08:44,463 INFO L226 Difference]: Without dead ends: 5514 [2022-01-11 07:08:44,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:44,469 INFO L933 BasicCegarLoop]: 5217 mSDtfsCounter, 5049 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5049 SdHoareTripleChecker+Valid, 5294 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:44,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5049 Valid, 5294 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:44,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5514 states. [2022-01-11 07:08:44,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5514 to 5514. [2022-01-11 07:08:44,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5514 states, 5511 states have (on average 1.5033569225185992) internal successors, (8285), 5513 states have internal predecessors, (8285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:44,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5514 states to 5514 states and 8285 transitions. [2022-01-11 07:08:44,661 INFO L78 Accepts]: Start accepts. Automaton has 5514 states and 8285 transitions. Word has length 121 [2022-01-11 07:08:44,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:44,661 INFO L470 AbstractCegarLoop]: Abstraction has 5514 states and 8285 transitions. [2022-01-11 07:08:44,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:44,661 INFO L276 IsEmpty]: Start isEmpty. Operand 5514 states and 8285 transitions. [2022-01-11 07:08:44,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:08:44,662 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:44,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:44,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 07:08:44,662 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:44,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:44,663 INFO L85 PathProgramCache]: Analyzing trace with hash -221986390, now seen corresponding path program 1 times [2022-01-11 07:08:44,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:44,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400987198] [2022-01-11 07:08:44,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:44,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:44,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:44,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:44,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400987198] [2022-01-11 07:08:44,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400987198] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:44,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:44,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:08:44,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254534112] [2022-01-11 07:08:44,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:44,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:44,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:44,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:44,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:44,701 INFO L87 Difference]: Start difference. First operand 5514 states and 8285 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:45,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:45,131 INFO L93 Difference]: Finished difference Result 12075 states and 16651 transitions. [2022-01-11 07:08:45,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:45,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:08:45,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:45,145 INFO L225 Difference]: With dead ends: 12075 [2022-01-11 07:08:45,145 INFO L226 Difference]: Without dead ends: 8716 [2022-01-11 07:08:45,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:45,151 INFO L933 BasicCegarLoop]: 5217 mSDtfsCounter, 5071 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5071 SdHoareTripleChecker+Valid, 6327 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:45,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5071 Valid, 6327 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:45,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8716 states. [2022-01-11 07:08:45,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8716 to 8458. [2022-01-11 07:08:45,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8458 states, 8455 states have (on average 1.4196333530455352) internal successors, (12003), 8457 states have internal predecessors, (12003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:45,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8458 states to 8458 states and 12003 transitions. [2022-01-11 07:08:45,504 INFO L78 Accepts]: Start accepts. Automaton has 8458 states and 12003 transitions. Word has length 121 [2022-01-11 07:08:45,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:45,504 INFO L470 AbstractCegarLoop]: Abstraction has 8458 states and 12003 transitions. [2022-01-11 07:08:45,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:45,505 INFO L276 IsEmpty]: Start isEmpty. Operand 8458 states and 12003 transitions. [2022-01-11 07:08:45,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-11 07:08:45,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:45,509 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:45,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 07:08:45,509 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:45,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:45,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1368128650, now seen corresponding path program 1 times [2022-01-11 07:08:45,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:45,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749272012] [2022-01-11 07:08:45,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:45,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:45,553 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:45,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:45,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749272012] [2022-01-11 07:08:45,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749272012] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:45,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:45,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:08:45,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476771442] [2022-01-11 07:08:45,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:45,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:45,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:45,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:45,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:45,554 INFO L87 Difference]: Start difference. First operand 8458 states and 12003 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:46,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:46,193 INFO L93 Difference]: Finished difference Result 20814 states and 27714 transitions. [2022-01-11 07:08:46,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:46,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 196 [2022-01-11 07:08:46,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:46,215 INFO L225 Difference]: With dead ends: 20814 [2022-01-11 07:08:46,216 INFO L226 Difference]: Without dead ends: 14517 [2022-01-11 07:08:46,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:46,227 INFO L933 BasicCegarLoop]: 5214 mSDtfsCounter, 5103 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5103 SdHoareTripleChecker+Valid, 6324 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:46,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5103 Valid, 6324 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:46,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14517 states. [2022-01-11 07:08:46,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14517 to 14061. [2022-01-11 07:08:46,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14061 states, 14058 states have (on average 1.3578745198463509) internal successors, (19089), 14060 states have internal predecessors, (19089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:46,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14061 states to 14061 states and 19089 transitions. [2022-01-11 07:08:46,970 INFO L78 Accepts]: Start accepts. Automaton has 14061 states and 19089 transitions. Word has length 196 [2022-01-11 07:08:46,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:46,971 INFO L470 AbstractCegarLoop]: Abstraction has 14061 states and 19089 transitions. [2022-01-11 07:08:46,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:46,971 INFO L276 IsEmpty]: Start isEmpty. Operand 14061 states and 19089 transitions. [2022-01-11 07:08:46,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-11 07:08:46,977 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:46,977 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:46,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 07:08:46,977 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:46,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:46,978 INFO L85 PathProgramCache]: Analyzing trace with hash -683735990, now seen corresponding path program 1 times [2022-01-11 07:08:46,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:46,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179638106] [2022-01-11 07:08:46,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:46,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:47,031 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:47,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:47,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179638106] [2022-01-11 07:08:47,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179638106] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:47,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:47,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:08:47,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418838285] [2022-01-11 07:08:47,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:47,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:47,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:47,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:47,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:47,033 INFO L87 Difference]: Start difference. First operand 14061 states and 19089 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:48,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:48,267 INFO L93 Difference]: Finished difference Result 36903 states and 47794 transitions. [2022-01-11 07:08:48,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:48,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 196 [2022-01-11 07:08:48,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:48,302 INFO L225 Difference]: With dead ends: 36903 [2022-01-11 07:08:48,302 INFO L226 Difference]: Without dead ends: 25075 [2022-01-11 07:08:48,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:48,314 INFO L933 BasicCegarLoop]: 5907 mSDtfsCounter, 4920 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4920 SdHoareTripleChecker+Valid, 7157 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:48,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4920 Valid, 7157 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:48,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25075 states. [2022-01-11 07:08:49,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25075 to 25071. [2022-01-11 07:08:49,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25071 states, 25068 states have (on average 1.3056486357108665) internal successors, (32730), 25070 states have internal predecessors, (32730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:49,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25071 states to 25071 states and 32730 transitions. [2022-01-11 07:08:49,629 INFO L78 Accepts]: Start accepts. Automaton has 25071 states and 32730 transitions. Word has length 196 [2022-01-11 07:08:49,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:49,630 INFO L470 AbstractCegarLoop]: Abstraction has 25071 states and 32730 transitions. [2022-01-11 07:08:49,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:49,630 INFO L276 IsEmpty]: Start isEmpty. Operand 25071 states and 32730 transitions. [2022-01-11 07:08:49,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-11 07:08:49,640 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:49,640 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:49,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 07:08:49,640 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:49,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:49,641 INFO L85 PathProgramCache]: Analyzing trace with hash -920353815, now seen corresponding path program 1 times [2022-01-11 07:08:49,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:49,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461224070] [2022-01-11 07:08:49,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:49,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:49,669 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:08:49,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:49,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461224070] [2022-01-11 07:08:49,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461224070] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:49,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:49,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:08:49,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968955675] [2022-01-11 07:08:49,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:49,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:49,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:49,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:49,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:49,670 INFO L87 Difference]: Start difference. First operand 25071 states and 32730 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:50,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:50,965 INFO L93 Difference]: Finished difference Result 47803 states and 61244 transitions. [2022-01-11 07:08:50,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:50,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 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 196 [2022-01-11 07:08:50,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:51,006 INFO L225 Difference]: With dead ends: 47803 [2022-01-11 07:08:51,006 INFO L226 Difference]: Without dead ends: 24965 [2022-01-11 07:08:51,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:51,028 INFO L933 BasicCegarLoop]: 5226 mSDtfsCounter, 1264 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 9184 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:51,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1264 Valid, 9184 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:51,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24965 states. [2022-01-11 07:08:52,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24965 to 24965. [2022-01-11 07:08:52,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24965 states, 24962 states have (on average 1.3061453409181956) internal successors, (32604), 24964 states have internal predecessors, (32604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:52,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24965 states to 24965 states and 32604 transitions. [2022-01-11 07:08:52,357 INFO L78 Accepts]: Start accepts. Automaton has 24965 states and 32604 transitions. Word has length 196 [2022-01-11 07:08:52,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:52,357 INFO L470 AbstractCegarLoop]: Abstraction has 24965 states and 32604 transitions. [2022-01-11 07:08:52,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:52,357 INFO L276 IsEmpty]: Start isEmpty. Operand 24965 states and 32604 transitions. [2022-01-11 07:08:52,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-11 07:08:52,366 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:52,366 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:52,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 07:08:52,366 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:52,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:52,367 INFO L85 PathProgramCache]: Analyzing trace with hash -4500794, now seen corresponding path program 1 times [2022-01-11 07:08:52,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:52,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729359990] [2022-01-11 07:08:52,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:52,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:52,412 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:08:52,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:52,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729359990] [2022-01-11 07:08:52,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729359990] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:52,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:52,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:08:52,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392137867] [2022-01-11 07:08:52,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:52,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:52,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:52,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:52,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:52,414 INFO L87 Difference]: Start difference. First operand 24965 states and 32604 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:54,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:54,747 INFO L93 Difference]: Finished difference Result 69478 states and 88187 transitions. [2022-01-11 07:08:54,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:54,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 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 197 [2022-01-11 07:08:54,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:54,812 INFO L225 Difference]: With dead ends: 69478 [2022-01-11 07:08:54,812 INFO L226 Difference]: Without dead ends: 46746 [2022-01-11 07:08:54,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:54,843 INFO L933 BasicCegarLoop]: 5563 mSDtfsCounter, 5012 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5012 SdHoareTripleChecker+Valid, 6800 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:54,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5012 Valid, 6800 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:08:54,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46746 states. [2022-01-11 07:08:57,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46746 to 45286. [2022-01-11 07:08:57,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45286 states, 45283 states have (on average 1.2763951151646313) internal successors, (57799), 45285 states have internal predecessors, (57799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:57,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45286 states to 45286 states and 57799 transitions. [2022-01-11 07:08:57,515 INFO L78 Accepts]: Start accepts. Automaton has 45286 states and 57799 transitions. Word has length 197 [2022-01-11 07:08:57,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:57,516 INFO L470 AbstractCegarLoop]: Abstraction has 45286 states and 57799 transitions. [2022-01-11 07:08:57,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:57,516 INFO L276 IsEmpty]: Start isEmpty. Operand 45286 states and 57799 transitions. [2022-01-11 07:08:57,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-11 07:08:57,530 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:57,530 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:08:57,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 07:08:57,531 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:57,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:57,531 INFO L85 PathProgramCache]: Analyzing trace with hash 724444198, now seen corresponding path program 1 times [2022-01-11 07:08:57,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:57,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533439671] [2022-01-11 07:08:57,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:57,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:57,569 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:08:57,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:57,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533439671] [2022-01-11 07:08:57,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533439671] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:57,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:57,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:08:57,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604662621] [2022-01-11 07:08:57,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:57,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:57,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:57,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:57,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:57,571 INFO L87 Difference]: Start difference. First operand 45286 states and 57799 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:09:00,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:09:00,287 INFO L93 Difference]: Finished difference Result 88295 states and 111455 transitions. [2022-01-11 07:09:00,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:09:00,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 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 197 [2022-01-11 07:09:00,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:09:00,345 INFO L225 Difference]: With dead ends: 88295 [2022-01-11 07:09:00,345 INFO L226 Difference]: Without dead ends: 45181 [2022-01-11 07:09:00,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:09:00,378 INFO L933 BasicCegarLoop]: 5225 mSDtfsCounter, 1262 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 9183 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:09:00,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1262 Valid, 9183 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:09:00,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45181 states. [2022-01-11 07:09:02,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45181 to 45181. [2022-01-11 07:09:03,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45181 states, 45178 states have (on average 1.27661693744743) internal successors, (57675), 45180 states have internal predecessors, (57675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:09:03,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45181 states to 45181 states and 57675 transitions. [2022-01-11 07:09:03,150 INFO L78 Accepts]: Start accepts. Automaton has 45181 states and 57675 transitions. Word has length 197 [2022-01-11 07:09:03,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:09:03,150 INFO L470 AbstractCegarLoop]: Abstraction has 45181 states and 57675 transitions. [2022-01-11 07:09:03,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:09:03,151 INFO L276 IsEmpty]: Start isEmpty. Operand 45181 states and 57675 transitions. [2022-01-11 07:09:03,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-11 07:09:03,162 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:09:03,163 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:09:03,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 07:09:03,163 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:09:03,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:09:03,164 INFO L85 PathProgramCache]: Analyzing trace with hash -402695687, now seen corresponding path program 1 times [2022-01-11 07:09:03,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:09:03,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209090762] [2022-01-11 07:09:03,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:09:03,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:09:03,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:09:03,215 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:09:03,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:09:03,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209090762] [2022-01-11 07:09:03,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209090762] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:09:03,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:09:03,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:09:03,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091158241] [2022-01-11 07:09:03,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:09:03,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:09:03,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:09:03,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:09:03,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:09:03,217 INFO L87 Difference]: Start difference. First operand 45181 states and 57675 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:09:07,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:09:07,889 INFO L93 Difference]: Finished difference Result 128957 states and 161928 transitions. [2022-01-11 07:09:07,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:09:07,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 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 198 [2022-01-11 07:09:07,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:09:08,004 INFO L225 Difference]: With dead ends: 128957 [2022-01-11 07:09:08,005 INFO L226 Difference]: Without dead ends: 86009 [2022-01-11 07:09:08,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:09:08,038 INFO L933 BasicCegarLoop]: 5618 mSDtfsCounter, 5098 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5098 SdHoareTripleChecker+Valid, 6853 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:09:08,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5098 Valid, 6853 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:09:08,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86009 states. [2022-01-11 07:09:13,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86009 to 83541. [2022-01-11 07:09:13,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83541 states, 83538 states have (on average 1.2595465536642008) internal successors, (105220), 83540 states have internal predecessors, (105220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:09:13,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83541 states to 83541 states and 105220 transitions. [2022-01-11 07:09:13,388 INFO L78 Accepts]: Start accepts. Automaton has 83541 states and 105220 transitions. Word has length 198 [2022-01-11 07:09:13,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:09:13,389 INFO L470 AbstractCegarLoop]: Abstraction has 83541 states and 105220 transitions. [2022-01-11 07:09:13,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:09:13,391 INFO L276 IsEmpty]: Start isEmpty. Operand 83541 states and 105220 transitions. [2022-01-11 07:09:13,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-11 07:09:13,417 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:09:13,417 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:09:13,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 07:09:13,417 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:09:13,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:09:13,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1258292758, now seen corresponding path program 1 times [2022-01-11 07:09:13,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:09:13,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930192007] [2022-01-11 07:09:13,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:09:13,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:09:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:09:13,445 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:09:13,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:09:13,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930192007] [2022-01-11 07:09:13,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930192007] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:09:13,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:09:13,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:09:13,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497484590] [2022-01-11 07:09:13,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:09:13,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:09:13,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:09:13,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:09:13,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:09:13,446 INFO L87 Difference]: Start difference. First operand 83541 states and 105220 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:09:18,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:09:18,600 INFO L93 Difference]: Finished difference Result 164799 states and 206291 transitions. [2022-01-11 07:09:18,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:09:18,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 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 198 [2022-01-11 07:09:18,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:09:18,722 INFO L225 Difference]: With dead ends: 164799 [2022-01-11 07:09:18,722 INFO L226 Difference]: Without dead ends: 83437 [2022-01-11 07:09:18,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:09:18,782 INFO L933 BasicCegarLoop]: 5224 mSDtfsCounter, 1260 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 9182 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:09:18,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1260 Valid, 9182 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:09:18,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83437 states. [2022-01-11 07:09:24,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83437 to 83437.