/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-sorted-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 17:46:10,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 17:46:10,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 17:46:10,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 17:46:10,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 17:46:10,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 17:46:10,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 17:46:10,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 17:46:10,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 17:46:10,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 17:46:10,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 17:46:10,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 17:46:10,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 17:46:10,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 17:46:10,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 17:46:10,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 17:46:10,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 17:46:10,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 17:46:10,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 17:46:10,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 17:46:10,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 17:46:10,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 17:46:10,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 17:46:10,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 17:46:10,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 17:46:10,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 17:46:10,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 17:46:10,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 17:46:10,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 17:46:10,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 17:46:10,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 17:46:10,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 17:46:10,839 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 17:46:10,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 17:46:10,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 17:46:10,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 17:46:10,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 17:46:10,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 17:46:10,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 17:46:10,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 17:46:10,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 17:46:10,846 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 17:46:10,870 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 17:46:10,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 17:46:10,870 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 17:46:10,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 17:46:10,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 17:46:10,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 17:46:10,872 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 17:46:10,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 17:46:10,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 17:46:10,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 17:46:10,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 17:46:10,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 17:46:10,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 17:46:10,873 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 17:46:10,873 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 17:46:10,873 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 17:46:10,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 17:46:10,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 17:46:10,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 17:46:10,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 17:46:10,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 17:46:10,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:46:10,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 17:46:10,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 17:46:10,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 17:46:10,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 17:46:10,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 17:46:10,874 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 17:46:10,874 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 17:46:10,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 17:46:10,874 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 17:46:10,874 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 17:46:10,876 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 17:46:10,876 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 17:46:11,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 17:46:11,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 17:46:11,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 17:46:11,073 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 17:46:11,074 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 17:46:11,074 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-sorted-2.i [2022-01-10 17:46:11,122 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/440c8c7b2/58836704dfd04383b225593362e174ef/FLAG65029554c [2022-01-10 17:46:11,500 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 17:46:11,501 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-2.i [2022-01-10 17:46:11,507 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/440c8c7b2/58836704dfd04383b225593362e174ef/FLAG65029554c [2022-01-10 17:46:11,872 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/440c8c7b2/58836704dfd04383b225593362e174ef [2022-01-10 17:46:11,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 17:46:11,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 17:46:11,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 17:46:11,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 17:46:11,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 17:46:11,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:46:11" (1/1) ... [2022-01-10 17:46:11,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b21c6fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:46:11, skipping insertion in model container [2022-01-10 17:46:11,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:46:11" (1/1) ... [2022-01-10 17:46:11,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 17:46:11,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:46:12,164 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-2.i[22317,22330] [2022-01-10 17:46:12,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-2.i[22452,22465] [2022-01-10 17:46:12,171 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-2.i[22612,22625] [2022-01-10 17:46:12,175 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-2.i[22941,22954] [2022-01-10 17:46:12,176 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-2.i[23005,23018] [2022-01-10 17:46:12,177 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-2.i[23136,23149] [2022-01-10 17:46:12,179 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-2.i[23200,23213] [2022-01-10 17:46:12,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:46:12,193 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 17:46:12,219 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-2.i[22317,22330] [2022-01-10 17:46:12,221 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-2.i[22452,22465] [2022-01-10 17:46:12,221 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-2.i[22612,22625] [2022-01-10 17:46:12,223 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-2.i[22941,22954] [2022-01-10 17:46:12,223 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-2.i[23005,23018] [2022-01-10 17:46:12,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-2.i[23136,23149] [2022-01-10 17:46:12,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-2.i[23200,23213] [2022-01-10 17:46:12,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:46:12,254 INFO L208 MainTranslator]: Completed translation [2022-01-10 17:46:12,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:46:12 WrapperNode [2022-01-10 17:46:12,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 17:46:12,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 17:46:12,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 17:46:12,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 17:46:12,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:46:12" (1/1) ... [2022-01-10 17:46:12,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:46:12" (1/1) ... [2022-01-10 17:46:12,310 INFO L137 Inliner]: procedures = 122, calls = 40, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 189 [2022-01-10 17:46:12,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 17:46:12,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 17:46:12,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 17:46:12,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 17:46:12,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:46:12" (1/1) ... [2022-01-10 17:46:12,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:46:12" (1/1) ... [2022-01-10 17:46:12,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:46:12" (1/1) ... [2022-01-10 17:46:12,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:46:12" (1/1) ... [2022-01-10 17:46:12,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:46:12" (1/1) ... [2022-01-10 17:46:12,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:46:12" (1/1) ... [2022-01-10 17:46:12,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:46:12" (1/1) ... [2022-01-10 17:46:12,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 17:46:12,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 17:46:12,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 17:46:12,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 17:46:12,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:46:12" (1/1) ... [2022-01-10 17:46:12,362 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:46:12,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:46:12,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 17:46:12,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 17:46:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 17:46:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 17:46:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 17:46:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-10 17:46:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-10 17:46:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 17:46:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 17:46:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 17:46:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 17:46:12,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 17:46:12,515 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 17:46:12,516 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 17:46:12,788 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 17:46:12,793 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 17:46:12,793 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2022-01-10 17:46:12,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:46:12 BoogieIcfgContainer [2022-01-10 17:46:12,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 17:46:12,795 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 17:46:12,795 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 17:46:12,796 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 17:46:12,798 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:46:12" (1/1) ... [2022-01-10 17:46:12,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:46:12 BasicIcfg [2022-01-10 17:46:12,922 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 17:46:12,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 17:46:12,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 17:46:12,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 17:46:12,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:46:11" (1/4) ... [2022-01-10 17:46:12,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42dd4920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:46:12, skipping insertion in model container [2022-01-10 17:46:12,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:46:12" (2/4) ... [2022-01-10 17:46:12,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42dd4920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:46:12, skipping insertion in model container [2022-01-10 17:46:12,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:46:12" (3/4) ... [2022-01-10 17:46:12,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42dd4920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:46:12, skipping insertion in model container [2022-01-10 17:46:12,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:46:12" (4/4) ... [2022-01-10 17:46:12,930 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-sorted-2.iTransformedIcfg [2022-01-10 17:46:12,933 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 17:46:12,934 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-01-10 17:46:12,966 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 17:46:12,970 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 17:46:12,970 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-01-10 17:46:12,979 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 52 states have (on average 1.8653846153846154) internal successors, (97), 59 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:46:12,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 17:46:12,983 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:46:12,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 17:46:12,984 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 17:46:12,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:46:12,987 INFO L85 PathProgramCache]: Analyzing trace with hash -423912534, now seen corresponding path program 1 times [2022-01-10 17:46:12,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:46:12,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605212187] [2022-01-10 17:46:12,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:46:12,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:46:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:46:13,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:46:13,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:46:13,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605212187] [2022-01-10 17:46:13,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605212187] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:46:13,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:46:13,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 17:46:13,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134577752] [2022-01-10 17:46:13,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:46:13,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 17:46:13,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:46:13,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 17:46:13,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 17:46:13,189 INFO L87 Difference]: Start difference. First operand has 60 states, 52 states have (on average 1.8653846153846154) internal successors, (97), 59 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:46:13,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:46:13,210 INFO L93 Difference]: Finished difference Result 115 states and 185 transitions. [2022-01-10 17:46:13,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 17:46:13,212 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-01-10 17:46:13,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:46:13,219 INFO L225 Difference]: With dead ends: 115 [2022-01-10 17:46:13,219 INFO L226 Difference]: Without dead ends: 54 [2022-01-10 17:46:13,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 17:46:13,225 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:46:13,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:46:13,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-01-10 17:46:13,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-01-10 17:46:13,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 47 states have (on average 1.3404255319148937) internal successors, (63), 53 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:46:13,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2022-01-10 17:46:13,254 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 6 [2022-01-10 17:46:13,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:46:13,255 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2022-01-10 17:46:13,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:46:13,256 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2022-01-10 17:46:13,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 17:46:13,256 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:46:13,256 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 17:46:13,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 17:46:13,257 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 17:46:13,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:46:13,260 INFO L85 PathProgramCache]: Analyzing trace with hash -423882743, now seen corresponding path program 1 times [2022-01-10 17:46:13,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:46:13,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268031347] [2022-01-10 17:46:13,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:46:13,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:46:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:46:13,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:46:13,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:46:13,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268031347] [2022-01-10 17:46:13,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268031347] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:46:13,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:46:13,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:46:13,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637570854] [2022-01-10 17:46:13,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:46:13,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:46:13,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:46:13,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:46:13,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:46:13,346 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:46:13,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:46:13,396 INFO L93 Difference]: Finished difference Result 110 states and 131 transitions. [2022-01-10 17:46:13,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:46:13,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-01-10 17:46:13,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:46:13,398 INFO L225 Difference]: With dead ends: 110 [2022-01-10 17:46:13,399 INFO L226 Difference]: Without dead ends: 58 [2022-01-10 17:46:13,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:46:13,400 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 30 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:46:13,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 83 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:46:13,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-01-10 17:46:13,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2022-01-10 17:46:13,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 50 states have (on average 1.34) internal successors, (67), 56 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:46:13,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 67 transitions. [2022-01-10 17:46:13,404 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 67 transitions. Word has length 6 [2022-01-10 17:46:13,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:46:13,404 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 67 transitions. [2022-01-10 17:46:13,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:46:13,405 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 67 transitions. [2022-01-10 17:46:13,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 17:46:13,405 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:46:13,406 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:46:13,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 17:46:13,407 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 17:46:13,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:46:13,408 INFO L85 PathProgramCache]: Analyzing trace with hash 230955076, now seen corresponding path program 1 times [2022-01-10 17:46:13,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:46:13,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795684063] [2022-01-10 17:46:13,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:46:13,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:46:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:46:13,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 17:46:13,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:46:13,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795684063] [2022-01-10 17:46:13,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795684063] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:46:13,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:46:13,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 17:46:13,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143423811] [2022-01-10 17:46:13,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:46:13,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 17:46:13,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:46:13,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 17:46:13,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 17:46:13,499 INFO L87 Difference]: Start difference. First operand 57 states and 67 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:46:13,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:46:13,603 INFO L93 Difference]: Finished difference Result 95 states and 111 transitions. [2022-01-10 17:46:13,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 17:46:13,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-01-10 17:46:13,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:46:13,606 INFO L225 Difference]: With dead ends: 95 [2022-01-10 17:46:13,606 INFO L226 Difference]: Without dead ends: 93 [2022-01-10 17:46:13,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:46:13,610 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 140 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:46:13,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 70 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:46:13,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-01-10 17:46:13,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 55. [2022-01-10 17:46:13,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 54 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:46:13,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 65 transitions. [2022-01-10 17:46:13,619 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 65 transitions. Word has length 9 [2022-01-10 17:46:13,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:46:13,619 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 65 transitions. [2022-01-10 17:46:13,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:46:13,620 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2022-01-10 17:46:13,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 17:46:13,620 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:46:13,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:46:13,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 17:46:13,620 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 17:46:13,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:46:13,621 INFO L85 PathProgramCache]: Analyzing trace with hash 506146543, now seen corresponding path program 1 times [2022-01-10 17:46:13,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:46:13,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850293928] [2022-01-10 17:46:13,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:46:13,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:46:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:46:14,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:46:14,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:46:14,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850293928] [2022-01-10 17:46:14,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850293928] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 17:46:14,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369704410] [2022-01-10 17:46:14,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:46:14,057 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 17:46:14,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:46:14,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 17:46:14,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 17:46:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:46:14,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 25 conjunts are in the unsatisfiable core [2022-01-10 17:46:14,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 17:46:14,303 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-01-10 17:46:14,317 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-10 17:46:14,369 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-10 17:46:14,369 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-01-10 17:46:14,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:46:14,382 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-01-10 17:46:14,387 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-10 17:46:14,419 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2022-01-10 17:46:14,519 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-01-10 17:46:14,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:46:14,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 17:46:14,613 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_139 (Array Int Int)) (|v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.offsetInt_2| Int)) (or (= (select (select (store |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.baseInt| v_ArrVal_139) |c_ULTIMATE.start_ULTIMATE.start_main_~head~0#1.baseInt|) (mod (+ 8 |v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.offsetInt_2|) 18446744073709551616)) 0) (not (<= |v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.offsetInt_2| |c_ULTIMATE.start_ULTIMATE.start_main_~head~0#1.offsetInt|)) (not (<= 0 |v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.offsetInt_2|)))) is different from false [2022-01-10 17:46:14,703 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_139 (Array Int Int)) (v_ArrVal_136 Int) (|v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.offsetInt_2| Int) (|v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.baseInt_3| Int)) (or (not (<= (mod (select |c_#validInt| |v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.baseInt_3|) 2) 0)) (not (<= |v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.offsetInt_2| |c_ULTIMATE.start_ULTIMATE.start_main_~head~0#1.offsetInt|)) (= (select (select (store (store |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.baseInt| (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.baseInt|) |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.offsetInt| v_ArrVal_136)) |v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.baseInt_3| v_ArrVal_139) |c_ULTIMATE.start_ULTIMATE.start_main_~head~0#1.baseInt|) (mod (+ 8 |v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.offsetInt_2|) 18446744073709551616)) 0) (not (<= 0 |v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.offsetInt_2|)))) is different from false [2022-01-10 17:46:14,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-01-10 17:46:14,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369704410] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 17:46:14,736 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 17:46:14,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2022-01-10 17:46:14,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866335392] [2022-01-10 17:46:14,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 17:46:14,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 17:46:14,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:46:14,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 17:46:14,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=64, Unknown=2, NotChecked=34, Total=132 [2022-01-10 17:46:14,739 INFO L87 Difference]: Start difference. First operand 55 states and 65 transitions. Second operand has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:46:14,752 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_139 (Array Int Int)) (v_ArrVal_136 Int) (|v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.offsetInt_2| Int) (|v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.baseInt_3| Int)) (or (not (<= (mod (select |c_#validInt| |v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.baseInt_3|) 2) 0)) (not (<= |v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.offsetInt_2| |c_ULTIMATE.start_ULTIMATE.start_main_~head~0#1.offsetInt|)) (= (select (select (store (store |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.baseInt| (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.baseInt|) |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.offsetInt| v_ArrVal_136)) |v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.baseInt_3| v_ArrVal_139) |c_ULTIMATE.start_ULTIMATE.start_main_~head~0#1.baseInt|) (mod (+ 8 |v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.offsetInt_2|) 18446744073709551616)) 0) (not (<= 0 |v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.offsetInt_2|)))) (<= |c_ULTIMATE.start_ULTIMATE.start_main_~head~0#1.offsetInt| 0) (= (select |c_#validInt| |c_ULTIMATE.start_ULTIMATE.start_main_~head~0#1.baseInt|) 1) (= |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.offsetInt| |c_ULTIMATE.start_ULTIMATE.start_main_~head~0#1.offsetInt|) (= |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1.baseInt| |c_ULTIMATE.start_ULTIMATE.start_main_~head~0#1.baseInt|) (= (select (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~head~0#1.baseInt|) (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~head~0#1.offsetInt| 8) 18446744073709551616)) 0) (<= 0 |c_ULTIMATE.start_ULTIMATE.start_main_~head~0#1.offsetInt|)) is different from false [2022-01-10 17:46:14,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:46:14,988 INFO L93 Difference]: Finished difference Result 99 states and 121 transitions. [2022-01-10 17:46:14,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 17:46:14,988 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 16 [2022-01-10 17:46:14,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:46:14,989 INFO L225 Difference]: With dead ends: 99 [2022-01-10 17:46:14,989 INFO L226 Difference]: Without dead ends: 97 [2022-01-10 17:46:14,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=127, Unknown=3, NotChecked=78, Total=272 [2022-01-10 17:46:14,990 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 48 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 162 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 17:46:14,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 402 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 164 Invalid, 0 Unknown, 162 Unchecked, 0.2s Time] [2022-01-10 17:46:14,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-01-10 17:46:14,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 68. [2022-01-10 17:46:14,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 67 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:46:14,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 83 transitions. [2022-01-10 17:46:14,995 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 83 transitions. Word has length 16 [2022-01-10 17:46:14,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:46:14,996 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 83 transitions. [2022-01-10 17:46:14,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:46:14,996 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 83 transitions. [2022-01-10 17:46:14,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 17:46:14,996 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:46:14,996 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:46:15,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 17:46:15,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 17:46:15,197 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 17:46:15,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:46:15,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1035448135, now seen corresponding path program 1 times [2022-01-10 17:46:15,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:46:15,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995114117] [2022-01-10 17:46:15,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:46:15,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:46:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat