/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/forester-heap/sll-sorted-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:23:44,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:23:44,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:23:44,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-11 05:23:44,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:23:44,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:23:44,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:23:44,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:23:44,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:23:44,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:23:44,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:23:44,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:23:44,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:23:44,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:23:44,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:23:44,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:23:44,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 05:23:44,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:23:44,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:23:44,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:23:44,774 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:23:44,800 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:23:44,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:23:44,800 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:23:44,800 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:23:44,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:23:44,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:23:44,801 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:23:44,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:23:44,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:23:44,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:23:44,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:23:44,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:23:44,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:23:44,802 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:23:44,802 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:23:44,802 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:23:44,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:23:44,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:23:44,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:23:44,802 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:23:44,802 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:23:44,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:23:44,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:23:44,803 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:23:44,803 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:23:44,803 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:23:44,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:23:44,803 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:23:44,803 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:23:44,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:23:44,803 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:23:44,803 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:23:44,804 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:23:44,804 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:23:45,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:23:45,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:23:45,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:23:45,028 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:23:45,029 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:23:45,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-sorted-1.i [2022-01-11 05:23:45,072 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbfc85c84/fa21f98ebe194e6f93bc80ea1dd98ede/FLAGada1a707c [2022-01-11 05:23:45,482 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:23:45,483 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-1.i [2022-01-11 05:23:45,496 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbfc85c84/fa21f98ebe194e6f93bc80ea1dd98ede/FLAGada1a707c [2022-01-11 05:23:45,865 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbfc85c84/fa21f98ebe194e6f93bc80ea1dd98ede [2022-01-11 05:23:45,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:23:45,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:23:45,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:23:45,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:23:45,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:23:45,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:23:45" (1/1) ... [2022-01-11 05:23:45,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14cb41e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:23:45, skipping insertion in model container [2022-01-11 05:23:45,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:23:45" (1/1) ... [2022-01-11 05:23:45,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:23:45,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:23:46,111 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-1.i[22317,22330] [2022-01-11 05:23:46,115 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-1.i[22547,22560] [2022-01-11 05:23:46,117 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-1.i[22877,22890] [2022-01-11 05:23:46,117 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-1.i[22941,22954] [2022-01-11 05:23:46,118 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-1.i[23072,23085] [2022-01-11 05:23:46,119 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-1.i[23136,23149] [2022-01-11 05:23:46,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:23:46,128 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:23:46,152 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-1.i[22317,22330] [2022-01-11 05:23:46,154 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-1.i[22547,22560] [2022-01-11 05:23:46,156 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-1.i[22877,22890] [2022-01-11 05:23:46,157 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-1.i[22941,22954] [2022-01-11 05:23:46,158 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-1.i[23072,23085] [2022-01-11 05:23:46,158 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-1.i[23136,23149] [2022-01-11 05:23:46,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:23:46,177 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:23:46,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:23:46 WrapperNode [2022-01-11 05:23:46,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:23:46,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:23:46,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:23:46,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:23:46,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:23:46" (1/1) ... [2022-01-11 05:23:46,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:23:46" (1/1) ... [2022-01-11 05:23:46,213 INFO L137 Inliner]: procedures = 122, calls = 39, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 179 [2022-01-11 05:23:46,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:23:46,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:23:46,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:23:46,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:23:46,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:23:46" (1/1) ... [2022-01-11 05:23:46,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:23:46" (1/1) ... [2022-01-11 05:23:46,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:23:46" (1/1) ... [2022-01-11 05:23:46,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:23:46" (1/1) ... [2022-01-11 05:23:46,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:23:46" (1/1) ... [2022-01-11 05:23:46,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:23:46" (1/1) ... [2022-01-11 05:23:46,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:23:46" (1/1) ... [2022-01-11 05:23:46,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:23:46,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:23:46,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:23:46,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:23:46,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:23:46" (1/1) ... [2022-01-11 05:23:46,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:23:46,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:23:46,274 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:23:46,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:23:46,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-11 05:23:46,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-11 05:23:46,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:23:46,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-11 05:23:46,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-11 05:23:46,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-11 05:23:46,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-11 05:23:46,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:23:46,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:23:46,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:23:46,389 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:23:46,391 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:23:46,655 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:23:46,660 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:23:46,660 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2022-01-11 05:23:46,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:23:46 BoogieIcfgContainer [2022-01-11 05:23:46,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:23:46,662 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:23:46,662 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:23:46,663 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:23:46,665 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:23:46" (1/1) ... [2022-01-11 05:23:46,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:23:46 BasicIcfg [2022-01-11 05:23:46,747 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:23:46,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:23:46,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:23:46,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:23:46,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:23:45" (1/4) ... [2022-01-11 05:23:46,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a65b3d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:23:46, skipping insertion in model container [2022-01-11 05:23:46,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:23:46" (2/4) ... [2022-01-11 05:23:46,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a65b3d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:23:46, skipping insertion in model container [2022-01-11 05:23:46,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:23:46" (3/4) ... [2022-01-11 05:23:46,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a65b3d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:23:46, skipping insertion in model container [2022-01-11 05:23:46,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:23:46" (4/4) ... [2022-01-11 05:23:46,753 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-sorted-1.iTransformedIcfg [2022-01-11 05:23:46,756 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:23:46,756 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-11 05:23:46,786 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:23:46,792 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:23:46,793 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-11 05:23:46,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 47 states have (on average 1.872340425531915) internal successors, (88), 53 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:23:46,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-11 05:23:46,807 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:23:46,808 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-11 05:23:46,808 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:23:46,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:23:46,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1015581654, now seen corresponding path program 1 times [2022-01-11 05:23:46,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:23:46,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651829751] [2022-01-11 05:23:46,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:23:46,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:23:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:23:46,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:23:46,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:23:46,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651829751] [2022-01-11 05:23:46,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651829751] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:23:46,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:23:46,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:23:46,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909042085] [2022-01-11 05:23:46,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:23:46,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 05:23:46,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:23:47,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 05:23:47,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:23:47,021 INFO L87 Difference]: Start difference. First operand has 54 states, 47 states have (on average 1.872340425531915) internal successors, (88), 53 states have internal predecessors, (88), 0 states have call successors, (0), 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) [2022-01-11 05:23:47,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:23:47,039 INFO L93 Difference]: Finished difference Result 103 states and 167 transitions. [2022-01-11 05:23:47,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 05:23:47,041 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 [2022-01-11 05:23:47,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:23:47,048 INFO L225 Difference]: With dead ends: 103 [2022-01-11 05:23:47,048 INFO L226 Difference]: Without dead ends: 48 [2022-01-11 05:23:47,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:23:47,053 INFO L933 BasicCegarLoop]: 64 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, 64 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 [2022-01-11 05:23:47,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:23:47,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-01-11 05:23:47,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-01-11 05:23:47,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 47 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:23:47,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2022-01-11 05:23:47,088 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 6 [2022-01-11 05:23:47,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:23:47,089 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2022-01-11 05:23:47,089 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) [2022-01-11 05:23:47,090 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2022-01-11 05:23:47,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-11 05:23:47,090 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:23:47,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-11 05:23:47,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:23:47,091 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:23:47,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:23:47,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1015551863, now seen corresponding path program 1 times [2022-01-11 05:23:47,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:23:47,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494990923] [2022-01-11 05:23:47,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:23:47,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:23:47,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:23:47,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:23:47,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:23:47,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494990923] [2022-01-11 05:23:47,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494990923] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:23:47,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:23:47,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:23:47,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627214719] [2022-01-11 05:23:47,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:23:47,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:23:47,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:23:47,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:23:47,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:23:47,186 INFO L87 Difference]: Start difference. First operand 48 states and 57 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) [2022-01-11 05:23:47,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:23:47,225 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2022-01-11 05:23:47,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:23:47,226 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 [2022-01-11 05:23:47,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:23:47,228 INFO L225 Difference]: With dead ends: 98 [2022-01-11 05:23:47,230 INFO L226 Difference]: Without dead ends: 52 [2022-01-11 05:23:47,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:23:47,235 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 24 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 77 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 [2022-01-11 05:23:47,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 77 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:23:47,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-01-11 05:23:47,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2022-01-11 05:23:47,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 45 states have (on average 1.3555555555555556) internal successors, (61), 50 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:23:47,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 61 transitions. [2022-01-11 05:23:47,249 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 61 transitions. Word has length 6 [2022-01-11 05:23:47,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:23:47,249 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 61 transitions. [2022-01-11 05:23:47,249 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) [2022-01-11 05:23:47,249 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 61 transitions. [2022-01-11 05:23:47,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-11 05:23:47,250 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:23:47,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:23:47,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:23:47,250 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:23:47,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:23:47,251 INFO L85 PathProgramCache]: Analyzing trace with hash 361964080, now seen corresponding path program 1 times [2022-01-11 05:23:47,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:23:47,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835517333] [2022-01-11 05:23:47,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:23:47,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:23:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:23:47,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-11 05:23:47,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:23:47,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835517333] [2022-01-11 05:23:47,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835517333] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:23:47,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:23:47,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:23:47,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549683186] [2022-01-11 05:23:47,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:23:47,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:23:47,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:23:47,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:23:47,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:23:47,325 INFO L87 Difference]: Start difference. First operand 51 states and 61 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) [2022-01-11 05:23:47,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:23:47,428 INFO L93 Difference]: Finished difference Result 83 states and 99 transitions. [2022-01-11 05:23:47,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:23:47,428 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 [2022-01-11 05:23:47,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:23:47,430 INFO L225 Difference]: With dead ends: 83 [2022-01-11 05:23:47,430 INFO L226 Difference]: Without dead ends: 81 [2022-01-11 05:23:47,430 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 [2022-01-11 05:23:47,431 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 122 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:23:47,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 60 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:23:47,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-01-11 05:23:47,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 49. [2022-01-11 05:23:47,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 48 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:23:47,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2022-01-11 05:23:47,440 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 9 [2022-01-11 05:23:47,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:23:47,440 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2022-01-11 05:23:47,441 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) [2022-01-11 05:23:47,441 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2022-01-11 05:23:47,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-11 05:23:47,441 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:23:47,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:23:47,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:23:47,441 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:23:47,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:23:47,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1598429316, now seen corresponding path program 1 times [2022-01-11 05:23:47,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:23:47,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053607691] [2022-01-11 05:23:47,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:23:47,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:23:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat