/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/array-fpi/res2of.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 04:06:29,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 04:06:29,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 04:06:29,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 04:06:29,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 04:06:29,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 04:06:29,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 04:06:29,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 04:06:29,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 04:06:29,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 04:06:29,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 04:06:29,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 04:06:29,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 04:06:29,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 04:06:29,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 04:06:29,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 04:06:29,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 04:06:29,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 04:06:29,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 04:06:29,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 04:06:29,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 04:06:29,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 04:06:29,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 04:06:29,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 04:06:29,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 04:06:29,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 04:06:29,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 04:06:29,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 04:06:29,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 04:06:29,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 04:06:29,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 04:06:29,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 04:06:29,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 04:06:29,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 04:06:29,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 04:06:29,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 04:06:29,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 04:06:29,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 04:06:29,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 04:06:29,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 04:06:29,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 04:06:29,990 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 04:06:30,004 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 04:06:30,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 04:06:30,004 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 04:06:30,004 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 04:06:30,005 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 04:06:30,005 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 04:06:30,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 04:06:30,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 04:06:30,006 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 04:06:30,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 04:06:30,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 04:06:30,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 04:06:30,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 04:06:30,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 04:06:30,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 04:06:30,007 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 04:06:30,007 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 04:06:30,007 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 04:06:30,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 04:06:30,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 04:06:30,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 04:06:30,007 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 04:06:30,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 04:06:30,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 04:06:30,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 04:06:30,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 04:06:30,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 04:06:30,008 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 04:06:30,008 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 04:06:30,008 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 04:06:30,008 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 04:06:30,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 04:06:30,009 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 04:06:30,009 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 04:06:30,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 04:06:30,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 04:06:30,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 04:06:30,196 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 04:06:30,199 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 04:06:30,200 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/res2of.c [2022-01-10 04:06:30,268 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4be56867c/af4753cde73c4bb3a49ab21ee8749462/FLAGce72bc109 [2022-01-10 04:06:30,575 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 04:06:30,575 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/res2of.c [2022-01-10 04:06:30,584 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4be56867c/af4753cde73c4bb3a49ab21ee8749462/FLAGce72bc109 [2022-01-10 04:06:30,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4be56867c/af4753cde73c4bb3a49ab21ee8749462 [2022-01-10 04:06:30,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 04:06:31,000 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 04:06:31,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 04:06:31,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 04:06:31,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 04:06:31,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 04:06:30" (1/1) ... [2022-01-10 04:06:31,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57544629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:06:31, skipping insertion in model container [2022-01-10 04:06:31,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 04:06:30" (1/1) ... [2022-01-10 04:06:31,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 04:06:31,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 04:06:31,121 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/res2of.c[589,602] [2022-01-10 04:06:31,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 04:06:31,160 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 04:06:31,168 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/res2of.c[589,602] [2022-01-10 04:06:31,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 04:06:31,190 INFO L208 MainTranslator]: Completed translation [2022-01-10 04:06:31,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:06:31 WrapperNode [2022-01-10 04:06:31,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 04:06:31,192 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 04:06:31,192 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 04:06:31,192 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 04:06:31,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:06:31" (1/1) ... [2022-01-10 04:06:31,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:06:31" (1/1) ... [2022-01-10 04:06:31,230 INFO L137 Inliner]: procedures = 21, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 112 [2022-01-10 04:06:31,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 04:06:31,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 04:06:31,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 04:06:31,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 04:06:31,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:06:31" (1/1) ... [2022-01-10 04:06:31,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:06:31" (1/1) ... [2022-01-10 04:06:31,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:06:31" (1/1) ... [2022-01-10 04:06:31,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:06:31" (1/1) ... [2022-01-10 04:06:31,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:06:31" (1/1) ... [2022-01-10 04:06:31,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:06:31" (1/1) ... [2022-01-10 04:06:31,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:06:31" (1/1) ... [2022-01-10 04:06:31,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 04:06:31,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 04:06:31,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 04:06:31,252 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 04:06:31,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:06:31" (1/1) ... [2022-01-10 04:06:31,258 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 04:06:31,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 04:06:31,275 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 04:06:31,276 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 04:06:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 04:06:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 04:06:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 04:06:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-01-10 04:06:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 04:06:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 04:06:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 04:06:31,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 04:06:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-01-10 04:06:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 04:06:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 04:06:31,346 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 04:06:31,348 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 04:06:31,562 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 04:06:31,566 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 04:06:31,567 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-01-10 04:06:31,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 04:06:31 BoogieIcfgContainer [2022-01-10 04:06:31,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 04:06:31,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 04:06:31,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 04:06:31,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 04:06:31,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 04:06:30" (1/3) ... [2022-01-10 04:06:31,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da76c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 04:06:31, skipping insertion in model container [2022-01-10 04:06:31,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:06:31" (2/3) ... [2022-01-10 04:06:31,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da76c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 04:06:31, skipping insertion in model container [2022-01-10 04:06:31,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 04:06:31" (3/3) ... [2022-01-10 04:06:31,583 INFO L111 eAbstractionObserver]: Analyzing ICFG res2of.c [2022-01-10 04:06:31,586 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 04:06:31,586 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 04:06:31,633 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 04:06:31,647 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 04:06:31,647 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 04:06:31,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 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 04:06:31,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 04:06:31,664 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:06:31,665 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:06:31,665 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:06:31,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:06:31,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1780399656, now seen corresponding path program 1 times [2022-01-10 04:06:31,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:06:31,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480268350] [2022-01-10 04:06:31,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:06:31,681 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:06:31,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:06:31,693 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:06:31,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 04:06:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:06:31,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 04:06:31,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:06:31,832 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 04:06:31,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:06:31,833 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:06:31,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480268350] [2022-01-10 04:06:31,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480268350] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:06:31,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:06:31,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 04:06:31,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363207073] [2022-01-10 04:06:31,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:06:31,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 04:06:31,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:06:31,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 04:06:31,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 04:06:31,862 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 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 9.5) internal successors, (19), 2 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 04:06:31,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:06:31,873 INFO L93 Difference]: Finished difference Result 56 states and 82 transitions. [2022-01-10 04:06:31,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 04:06:31,874 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 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) Word has length 19 [2022-01-10 04:06:31,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:06:31,879 INFO L225 Difference]: With dead ends: 56 [2022-01-10 04:06:31,879 INFO L226 Difference]: Without dead ends: 26 [2022-01-10 04:06:31,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 04:06:31,884 INFO L933 BasicCegarLoop]: 36 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, 36 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 04:06:31,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 04:06:31,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-01-10 04:06:31,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-01-10 04:06:31,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 04:06:31,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-01-10 04:06:31,905 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 19 [2022-01-10 04:06:31,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:06:31,905 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-01-10 04:06:31,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 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 04:06:31,905 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-01-10 04:06:31,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 04:06:31,906 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:06:31,906 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:06:31,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 04:06:32,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:06:32,113 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:06:32,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:06:32,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1279549768, now seen corresponding path program 1 times [2022-01-10 04:06:32,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:06:32,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [21284351] [2022-01-10 04:06:32,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:06:32,117 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:06:32,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:06:32,119 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:06:32,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 04:06:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:06:32,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 04:06:32,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:06:32,355 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 04:06:32,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:06:32,356 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:06:32,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [21284351] [2022-01-10 04:06:32,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [21284351] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:06:32,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:06:32,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 04:06:32,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947666788] [2022-01-10 04:06:32,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:06:32,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 04:06:32,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:06:32,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 04:06:32,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 04:06:32,358 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 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 04:06:32,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:06:32,507 INFO L93 Difference]: Finished difference Result 57 states and 72 transitions. [2022-01-10 04:06:32,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 04:06:32,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 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) Word has length 19 [2022-01-10 04:06:32,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:06:32,508 INFO L225 Difference]: With dead ends: 57 [2022-01-10 04:06:32,508 INFO L226 Difference]: Without dead ends: 38 [2022-01-10 04:06:32,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 04:06:32,509 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 62 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 04:06:32,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 12 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 04:06:32,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-01-10 04:06:32,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2022-01-10 04:06:32,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 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 04:06:32,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2022-01-10 04:06:32,515 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 19 [2022-01-10 04:06:32,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:06:32,515 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2022-01-10 04:06:32,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 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 04:06:32,515 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2022-01-10 04:06:32,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-10 04:06:32,516 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:06:32,516 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:06:32,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 04:06:32,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:06:32,723 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:06:32,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:06:32,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1740145276, now seen corresponding path program 1 times [2022-01-10 04:06:32,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:06:32,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441591546] [2022-01-10 04:06:32,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:06:32,725 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:06:32,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:06:32,727 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:06:32,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 04:06:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 04:06:32,893 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 04:06:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 04:06:33,042 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-01-10 04:06:33,042 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 04:06:33,043 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 04:06:33,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 04:06:33,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:06:33,247 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-10 04:06:33,249 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 04:06:33,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 04:06:33 BoogieIcfgContainer [2022-01-10 04:06:33,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 04:06:33,284 INFO L158 Benchmark]: Toolchain (without parser) took 2283.60ms. Allocated memory was 203.4MB in the beginning and 262.1MB in the end (delta: 58.7MB). Free memory was 147.3MB in the beginning and 157.4MB in the end (delta: -10.1MB). Peak memory consumption was 47.9MB. Max. memory is 8.0GB. [2022-01-10 04:06:33,284 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 203.4MB. Free memory is still 163.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 04:06:33,284 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.94ms. Allocated memory was 203.4MB in the beginning and 262.1MB in the end (delta: 58.7MB). Free memory was 147.0MB in the beginning and 232.9MB in the end (delta: -85.8MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB. [2022-01-10 04:06:33,285 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.05ms. Allocated memory is still 262.1MB. Free memory was 232.9MB in the beginning and 231.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 04:06:33,285 INFO L158 Benchmark]: Boogie Preprocessor took 20.35ms. Allocated memory is still 262.1MB. Free memory was 231.3MB in the beginning and 229.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 04:06:33,285 INFO L158 Benchmark]: RCFGBuilder took 315.86ms. Allocated memory is still 262.1MB. Free memory was 229.7MB in the beginning and 214.5MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-01-10 04:06:33,286 INFO L158 Benchmark]: TraceAbstraction took 1714.31ms. Allocated memory is still 262.1MB. Free memory was 214.0MB in the beginning and 157.4MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. [2022-01-10 04:06:33,287 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 203.4MB. Free memory is still 163.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 189.94ms. Allocated memory was 203.4MB in the beginning and 262.1MB in the end (delta: 58.7MB). Free memory was 147.0MB in the beginning and 232.9MB in the end (delta: -85.8MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.05ms. Allocated memory is still 262.1MB. Free memory was 232.9MB in the beginning and 231.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.35ms. Allocated memory is still 262.1MB. Free memory was 231.3MB in the beginning and 229.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 315.86ms. Allocated memory is still 262.1MB. Free memory was 229.7MB in the beginning and 214.5MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 1714.31ms. Allocated memory is still 262.1MB. Free memory was 214.0MB in the beginning and 157.4MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. 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); [L30] int *b = malloc(sizeof(int)*N); [L31] int *c = malloc(sizeof(int)*N); [L33] sum[0] = 0 [L34] i=0 VAL [a={9223372036854775794:0}, b={9223372036854775799:0}, c={9223372036854775795:0}, i=0, N=1, sum={-4611686018427387913:0}] [L34] COND TRUE i