/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_NONE.epf -i ../../../trunk/examples/svcomp/array-fpi/brs5f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 21:32:06,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 21:32:06,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 21:32:06,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 21:32:06,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 21:32:06,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 21:32:06,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 21:32:06,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 21:32:06,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 21:32:06,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 21:32:06,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 21:32:06,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 21:32:06,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 21:32:06,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 21:32:06,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 21:32:06,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 21:32:06,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 21:32:06,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 21:32:06,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 21:32:06,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 21:32:06,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 21:32:06,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 21:32:06,307 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 21:32:06,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 21:32:06,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 21:32:06,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 21:32:06,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 21:32:06,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 21:32:06,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 21:32:06,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 21:32:06,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 21:32:06,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 21:32:06,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 21:32:06,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 21:32:06,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 21:32:06,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 21:32:06,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 21:32:06,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 21:32:06,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 21:32:06,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 21:32:06,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 21:32:06,326 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 21:32:06,350 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 21:32:06,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 21:32:06,351 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 21:32:06,351 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 21:32:06,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 21:32:06,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 21:32:06,352 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 21:32:06,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 21:32:06,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 21:32:06,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 21:32:06,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 21:32:06,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 21:32:06,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 21:32:06,353 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 21:32:06,354 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 21:32:06,354 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 21:32:06,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 21:32:06,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 21:32:06,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 21:32:06,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 21:32:06,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 21:32:06,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 21:32:06,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 21:32:06,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 21:32:06,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 21:32:06,355 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 21:32:06,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 21:32:06,355 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 21:32:06,355 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 21:32:06,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 21:32:06,356 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 21:32:06,356 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 21:32:06,357 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 21:32:06,357 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 21:32:06,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 21:32:06,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 21:32:06,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 21:32:06,635 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 21:32:06,636 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 21:32:06,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/brs5f.c [2022-01-10 21:32:06,691 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85cf85531/354a2b3678af414ea8bada8074c9adf2/FLAG9d67b011f [2022-01-10 21:32:07,076 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 21:32:07,077 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/brs5f.c [2022-01-10 21:32:07,081 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85cf85531/354a2b3678af414ea8bada8074c9adf2/FLAG9d67b011f [2022-01-10 21:32:07,495 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85cf85531/354a2b3678af414ea8bada8074c9adf2 [2022-01-10 21:32:07,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 21:32:07,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 21:32:07,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 21:32:07,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 21:32:07,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 21:32:07,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:32:07" (1/1) ... [2022-01-10 21:32:07,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bda0514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:32:07, skipping insertion in model container [2022-01-10 21:32:07,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:32:07" (1/1) ... [2022-01-10 21:32:07,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 21:32:07,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 21:32:07,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/brs5f.c[588,601] [2022-01-10 21:32:07,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 21:32:07,688 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 21:32:07,696 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/brs5f.c[588,601] [2022-01-10 21:32:07,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 21:32:07,720 INFO L208 MainTranslator]: Completed translation [2022-01-10 21:32:07,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:32:07 WrapperNode [2022-01-10 21:32:07,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 21:32:07,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 21:32:07,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 21:32:07,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 21:32:07,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:32:07" (1/1) ... [2022-01-10 21:32:07,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:32:07" (1/1) ... [2022-01-10 21:32:07,769 INFO L137 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2022-01-10 21:32:07,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 21:32:07,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 21:32:07,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 21:32:07,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 21:32:07,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:32:07" (1/1) ... [2022-01-10 21:32:07,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:32:07" (1/1) ... [2022-01-10 21:32:07,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:32:07" (1/1) ... [2022-01-10 21:32:07,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:32:07" (1/1) ... [2022-01-10 21:32:07,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:32:07" (1/1) ... [2022-01-10 21:32:07,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:32:07" (1/1) ... [2022-01-10 21:32:07,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:32:07" (1/1) ... [2022-01-10 21:32:07,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 21:32:07,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 21:32:07,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 21:32:07,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 21:32:07,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:32:07" (1/1) ... [2022-01-10 21:32:07,820 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 21:32:07,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 21:32:07,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 21:32:07,853 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 21:32:07,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 21:32:07,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 21:32:07,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 21:32:07,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-01-10 21:32:07,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 21:32:07,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 21:32:07,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 21:32:07,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 21:32:07,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-01-10 21:32:07,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 21:32:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 21:32:07,947 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 21:32:07,949 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 21:32:08,212 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 21:32:08,217 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 21:32:08,217 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 21:32:08,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:32:08 BoogieIcfgContainer [2022-01-10 21:32:08,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 21:32:08,219 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 21:32:08,219 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 21:32:08,220 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 21:32:08,223 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:32:08" (1/1) ... [2022-01-10 21:32:08,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:32:08 BasicIcfg [2022-01-10 21:32:08,390 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 21:32:08,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 21:32:08,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 21:32:08,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 21:32:08,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 09:32:07" (1/4) ... [2022-01-10 21:32:08,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26daf732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:32:08, skipping insertion in model container [2022-01-10 21:32:08,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:32:07" (2/4) ... [2022-01-10 21:32:08,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26daf732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:32:08, skipping insertion in model container [2022-01-10 21:32:08,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:32:08" (3/4) ... [2022-01-10 21:32:08,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26daf732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:32:08, skipping insertion in model container [2022-01-10 21:32:08,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:32:08" (4/4) ... [2022-01-10 21:32:08,399 INFO L111 eAbstractionObserver]: Analyzing ICFG brs5f.cTransformedIcfg [2022-01-10 21:32:08,404 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 21:32:08,404 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 21:32:08,468 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 21:32:08,476 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 21:32:08,476 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 21:32:08,487 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 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 21:32:08,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 21:32:08,491 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:32:08,491 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:32:08,491 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:32:08,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:32:08,495 INFO L85 PathProgramCache]: Analyzing trace with hash -289435600, now seen corresponding path program 1 times [2022-01-10 21:32:08,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:32:08,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439180804] [2022-01-10 21:32:08,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:32:08,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:32:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:32:08,695 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 21:32:08,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:32:08,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439180804] [2022-01-10 21:32:08,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439180804] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:32:08,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:32:08,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 21:32:08,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828814181] [2022-01-10 21:32:08,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:32:08,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 21:32:08,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:32:08,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 21:32:08,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 21:32:08,734 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 21:32:08,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:32:08,750 INFO L93 Difference]: Finished difference Result 36 states and 50 transitions. [2022-01-10 21:32:08,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 21:32:08,752 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2022-01-10 21:32:08,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:32:08,758 INFO L225 Difference]: With dead ends: 36 [2022-01-10 21:32:08,759 INFO L226 Difference]: Without dead ends: 16 [2022-01-10 21:32:08,764 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 21:32:08,768 INFO L933 BasicCegarLoop]: 24 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, 24 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 21:32:08,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:32:08,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-01-10 21:32:08,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-01-10 21:32:08,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 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 21:32:08,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-01-10 21:32:08,801 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2022-01-10 21:32:08,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:32:08,802 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-01-10 21:32:08,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 21:32:08,803 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2022-01-10 21:32:08,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 21:32:08,804 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:32:08,804 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:32:08,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 21:32:08,805 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:32:08,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:32:08,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1482033677, now seen corresponding path program 1 times [2022-01-10 21:32:08,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:32:08,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45580696] [2022-01-10 21:32:08,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:32:08,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:32:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:32:09,042 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 21:32:09,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:32:09,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45580696] [2022-01-10 21:32:09,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45580696] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:32:09,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:32:09,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:32:09,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764688317] [2022-01-10 21:32:09,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:32:09,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:32:09,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:32:09,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:32:09,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:32:09,048 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 21:32:11,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 21:32:11,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:32:11,190 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2022-01-10 21:32:11,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:32:11,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-01-10 21:32:11,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:32:11,275 INFO L225 Difference]: With dead ends: 30 [2022-01-10 21:32:11,275 INFO L226 Difference]: Without dead ends: 22 [2022-01-10 21:32:11,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:32:11,276 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 19 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:32:11,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 10 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-01-10 21:32:11,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-01-10 21:32:11,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2022-01-10 21:32:11,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 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 21:32:11,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2022-01-10 21:32:11,282 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 11 [2022-01-10 21:32:11,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:32:11,282 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-01-10 21:32:11,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 21:32:11,282 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2022-01-10 21:32:11,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 21:32:11,283 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:32:11,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:32:11,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 21:32:11,283 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:32:11,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:32:11,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1285844753, now seen corresponding path program 1 times [2022-01-10 21:32:11,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:32:11,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015725245] [2022-01-10 21:32:11,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:32:11,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:32:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:32:11,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 21:32:11,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:32:11,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015725245] [2022-01-10 21:32:11,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015725245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:32:11,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:32:11,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:32:11,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815086647] [2022-01-10 21:32:11,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:32:11,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:32:11,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:32:11,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:32:11,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:32:11,685 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 21:32:13,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 21:32:13,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:32:13,917 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2022-01-10 21:32:13,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:32:13,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2022-01-10 21:32:13,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:32:13,919 INFO L225 Difference]: With dead ends: 34 [2022-01-10 21:32:13,919 INFO L226 Difference]: Without dead ends: 22 [2022-01-10 21:32:13,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 21:32:13,920 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-10 21:32:13,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 18 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-01-10 21:32:13,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-01-10 21:32:13,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2022-01-10 21:32:13,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 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 21:32:13,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2022-01-10 21:32:13,926 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 17 [2022-01-10 21:32:13,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:32:13,926 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2022-01-10 21:32:13,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 21:32:13,927 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-01-10 21:32:13,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 21:32:13,927 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:32:13,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:32:13,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 21:32:13,927 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:32:13,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:32:13,928 INFO L85 PathProgramCache]: Analyzing trace with hash 511106606, now seen corresponding path program 1 times [2022-01-10 21:32:13,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:32:13,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124022643] [2022-01-10 21:32:13,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:32:13,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:32:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 21:32:14,060 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 21:32:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 21:32:14,174 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 21:32:14,174 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 21:32:14,175 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 21:32:14,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 21:32:14,179 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-10 21:32:14,181 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 21:32:14,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:32:14 BasicIcfg [2022-01-10 21:32:14,234 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 21:32:14,235 INFO L158 Benchmark]: Toolchain (without parser) took 6735.93ms. Allocated memory was 187.7MB in the beginning and 241.2MB in the end (delta: 53.5MB). Free memory was 136.5MB in the beginning and 197.7MB in the end (delta: -61.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 21:32:14,236 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 187.7MB. Free memory is still 153.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 21:32:14,236 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.63ms. Allocated memory is still 187.7MB. Free memory was 136.4MB in the beginning and 162.5MB in the end (delta: -26.1MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. [2022-01-10 21:32:14,236 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.86ms. Allocated memory is still 187.7MB. Free memory was 162.5MB in the beginning and 160.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 21:32:14,237 INFO L158 Benchmark]: Boogie Preprocessor took 39.26ms. Allocated memory is still 187.7MB. Free memory was 160.9MB in the beginning and 159.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 21:32:14,237 INFO L158 Benchmark]: RCFGBuilder took 406.15ms. Allocated memory is still 187.7MB. Free memory was 159.3MB in the beginning and 147.8MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 21:32:14,237 INFO L158 Benchmark]: IcfgTransformer took 171.47ms. Allocated memory is still 187.7MB. Free memory was 147.8MB in the beginning and 141.0MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-01-10 21:32:14,238 INFO L158 Benchmark]: TraceAbstraction took 5842.27ms. Allocated memory was 187.7MB in the beginning and 241.2MB in the end (delta: 53.5MB). Free memory was 140.5MB in the beginning and 197.7MB in the end (delta: -57.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 21:32:14,240 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 187.7MB. Free memory is still 153.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 218.63ms. Allocated memory is still 187.7MB. Free memory was 136.4MB in the beginning and 162.5MB in the end (delta: -26.1MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.86ms. Allocated memory is still 187.7MB. Free memory was 162.5MB in the beginning and 160.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.26ms. Allocated memory is still 187.7MB. Free memory was 160.9MB in the beginning and 159.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 406.15ms. Allocated memory is still 187.7MB. Free memory was 159.3MB in the beginning and 147.8MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 171.47ms. Allocated memory is still 187.7MB. Free memory was 147.8MB in the beginning and 141.0MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 5842.27ms. Allocated memory was 187.7MB in the beginning and 241.2MB in the end (delta: 53.5MB). Free memory was 140.5MB in the beginning and 197.7MB in the end (delta: -57.2MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] i=0 VAL [a={-1:0}, i=0, N=1, sum={-7:0}] [L31] COND TRUE i