/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/heap-manipulation/dll_of_dll-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:00:39,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:00:39,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:00:39,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 06:00:39,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 06:00:39,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 06:00:39,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 06:00:39,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 06:00:39,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 06:00:39,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 06:00:39,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 06:00:39,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 06:00:39,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 06:00:39,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 06:00:39,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 06:00:39,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 06:00:39,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 06:00:39,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 06:00:39,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 06:00:39,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 06:00:39,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 06:00:39,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 06:00:39,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 06:00:39,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 06:00:39,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 06:00:39,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:00:39,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:00:39,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:00:39,652 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 06:00:39,675 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:00:39,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:00:39,676 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:00:39,676 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:00:39,677 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:00:39,677 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:00:39,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:00:39,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:00:39,677 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:00:39,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:00:39,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:00:39,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:00:39,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:00:39,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:00:39,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:00:39,678 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:00:39,678 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:00:39,678 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:00:39,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:00:39,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:00:39,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:00:39,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:00:39,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:00:39,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:00:39,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:00:39,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:00:39,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:00:39,680 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:00:39,680 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:00:39,680 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:00:39,680 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:00:39,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:00:39,681 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:00:39,681 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:00:39,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:00:39,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:00:39,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:00:39,899 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:00:39,899 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:00:39,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2022-01-10 06:00:39,990 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d7d62444/b3d55cf7731b47cbbd4f81e9fef70530/FLAGb2b5c2eab [2022-01-10 06:00:40,428 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:00:40,428 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2022-01-10 06:00:40,440 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d7d62444/b3d55cf7731b47cbbd4f81e9fef70530/FLAGb2b5c2eab [2022-01-10 06:00:40,938 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d7d62444/b3d55cf7731b47cbbd4f81e9fef70530 [2022-01-10 06:00:40,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:00:40,942 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:00:40,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:00:40,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:00:40,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:00:40,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:00:40" (1/1) ... [2022-01-10 06:00:40,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c616afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:00:40, skipping insertion in model container [2022-01-10 06:00:40,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:00:40" (1/1) ... [2022-01-10 06:00:40,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:00:40,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:00:41,271 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i[22634,22647] [2022-01-10 06:00:41,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:00:41,332 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:00:41,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i[22634,22647] [2022-01-10 06:00:41,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:00:41,413 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:00:41,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:00:41 WrapperNode [2022-01-10 06:00:41,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:00:41,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:00:41,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:00:41,414 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:00:41,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:00:41" (1/1) ... [2022-01-10 06:00:41,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:00:41" (1/1) ... [2022-01-10 06:00:41,512 INFO L137 Inliner]: procedures = 141, calls = 94, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 229 [2022-01-10 06:00:41,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:00:41,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:00:41,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:00:41,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:00:41,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:00:41" (1/1) ... [2022-01-10 06:00:41,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:00:41" (1/1) ... [2022-01-10 06:00:41,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:00:41" (1/1) ... [2022-01-10 06:00:41,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:00:41" (1/1) ... [2022-01-10 06:00:41,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:00:41" (1/1) ... [2022-01-10 06:00:41,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:00:41" (1/1) ... [2022-01-10 06:00:41,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:00:41" (1/1) ... [2022-01-10 06:00:41,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:00:41,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:00:41,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:00:41,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:00:41,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:00:41" (1/1) ... [2022-01-10 06:00:41,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:00:41,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:00:41,610 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 06:00:41,613 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 06:00:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2022-01-10 06:00:41,651 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2022-01-10 06:00:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2022-01-10 06:00:41,652 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2022-01-10 06:00:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 06:00:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:00:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2022-01-10 06:00:41,652 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2022-01-10 06:00:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 06:00:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-10 06:00:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-01-10 06:00:41,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-01-10 06:00:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-10 06:00:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 06:00:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-01-10 06:00:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2022-01-10 06:00:41,653 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2022-01-10 06:00:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:00:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2022-01-10 06:00:41,653 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2022-01-10 06:00:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:00:41,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:00:41,765 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:00:41,766 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:00:42,110 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:00:42,116 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:00:42,116 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2022-01-10 06:00:42,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:00:42 BoogieIcfgContainer [2022-01-10 06:00:42,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:00:42,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:00:42,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:00:42,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:00:42,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:00:40" (1/3) ... [2022-01-10 06:00:42,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5630a468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:00:42, skipping insertion in model container [2022-01-10 06:00:42,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:00:41" (2/3) ... [2022-01-10 06:00:42,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5630a468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:00:42, skipping insertion in model container [2022-01-10 06:00:42,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:00:42" (3/3) ... [2022-01-10 06:00:42,124 INFO L111 eAbstractionObserver]: Analyzing ICFG dll_of_dll-1.i [2022-01-10 06:00:42,127 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:00:42,127 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:00:42,169 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:00:42,182 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 06:00:42,182 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:00:42,198 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 95 states have (on average 1.7157894736842105) internal successors, (163), 115 states have internal predecessors, (163), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2022-01-10 06:00:42,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 06:00:42,202 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:00:42,203 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:00:42,204 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:00:42,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:00:42,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1604000671, now seen corresponding path program 1 times [2022-01-10 06:00:42,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:00:42,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676712598] [2022-01-10 06:00:42,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:00:42,220 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:00:42,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:00:42,222 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 06:00:42,224 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 06:00:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:00:42,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 06:00:42,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:00:42,478 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-10 06:00:42,478 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:00:42,479 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:00:42,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676712598] [2022-01-10 06:00:42,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676712598] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:00:42,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:00:42,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:00:42,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426521405] [2022-01-10 06:00:42,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:00:42,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 06:00:42,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:00:42,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 06:00:42,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:00:42,502 INFO L87 Difference]: Start difference. First operand has 127 states, 95 states have (on average 1.7157894736842105) internal successors, (163), 115 states have internal predecessors, (163), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 06:00:42,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:00:42,526 INFO L93 Difference]: Finished difference Result 249 states and 427 transitions. [2022-01-10 06:00:42,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 06:00:42,528 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2022-01-10 06:00:42,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:00:42,534 INFO L225 Difference]: With dead ends: 249 [2022-01-10 06:00:42,534 INFO L226 Difference]: Without dead ends: 119 [2022-01-10 06:00:42,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 36 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 06:00:42,539 INFO L933 BasicCegarLoop]: 155 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, 155 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 06:00:42,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:00:42,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-01-10 06:00:42,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2022-01-10 06:00:42,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 89 states have (on average 1.2808988764044944) internal successors, (114), 107 states have internal predecessors, (114), 24 states have call successors, (24), 6 states have call predecessors, (24), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-01-10 06:00:42,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 148 transitions. [2022-01-10 06:00:42,568 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 148 transitions. Word has length 37 [2022-01-10 06:00:42,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:00:42,568 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 148 transitions. [2022-01-10 06:00:42,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 06:00:42,568 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 148 transitions. [2022-01-10 06:00:42,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 06:00:42,570 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:00:42,570 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:00:42,581 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 06:00:42,778 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 06:00:42,779 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:00:42,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:00:42,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1419477340, now seen corresponding path program 1 times [2022-01-10 06:00:42,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:00:42,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290460171] [2022-01-10 06:00:42,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:00:42,780 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:00:42,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:00:42,792 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 06:00:42,795 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 06:00:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:00:42,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 06:00:42,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:00:43,121 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 06:00:43,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:00:43,385 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 06:00:43,386 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:00:43,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290460171] [2022-01-10 06:00:43,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290460171] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:00:43,386 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:00:43,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2022-01-10 06:00:43,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765093113] [2022-01-10 06:00:43,387 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:00:43,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:00:43,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:00:43,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:00:43,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:00:43,388 INFO L87 Difference]: Start difference. First operand 119 states and 148 transitions. Second operand has 6 states, 4 states have (on average 7.25) internal successors, (29), 6 states have internal predecessors, (29), 5 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-10 06:00:43,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:00:43,493 INFO L93 Difference]: Finished difference Result 247 states and 321 transitions. [2022-01-10 06:00:43,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 06:00:43,494 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 7.25) internal successors, (29), 6 states have internal predecessors, (29), 5 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 37 [2022-01-10 06:00:43,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:00:43,496 INFO L225 Difference]: With dead ends: 247 [2022-01-10 06:00:43,496 INFO L226 Difference]: Without dead ends: 131 [2022-01-10 06:00:43,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:00:43,497 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 12 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:00:43,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 698 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:00:43,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-01-10 06:00:43,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2022-01-10 06:00:43,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 96 states have (on average 1.2708333333333333) internal successors, (122), 114 states have internal predecessors, (122), 27 states have call successors, (27), 8 states have call predecessors, (27), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2022-01-10 06:00:43,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 162 transitions. [2022-01-10 06:00:43,509 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 162 transitions. Word has length 37 [2022-01-10 06:00:43,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:00:43,509 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 162 transitions. [2022-01-10 06:00:43,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 7.25) internal successors, (29), 6 states have internal predecessors, (29), 5 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-10 06:00:43,509 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 162 transitions. [2022-01-10 06:00:43,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-10 06:00:43,511 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:00:43,511 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:00:43,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-01-10 06:00:43,727 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 06:00:43,728 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:00:43,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:00:43,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1380488684, now seen corresponding path program 1 times [2022-01-10 06:00:43,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:00:43,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191713550] [2022-01-10 06:00:43,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:00:43,730 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:00:43,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:00:43,743 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 06:00:43,762 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 06:00:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:00:44,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 23 conjunts are in the unsatisfiable core [2022-01-10 06:00:44,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:00:44,683 INFO L353 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-01-10 06:00:44,683 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2022-01-10 06:00:44,709 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-01-10 06:00:44,719 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-01-10 06:00:44,776 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2022-01-10 06:00:44,894 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-10 06:00:44,894 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 34 [2022-01-10 06:00:44,896 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2022-01-10 06:00:45,014 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-01-10 06:00:45,226 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-01-10 06:00:45,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:00:46,084 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 06:00:46,085 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 218 treesize of output 215 [2022-01-10 06:00:46,093 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 242 [2022-01-10 06:00:46,103 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 238 [2022-01-10 06:00:46,191 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-01-10 06:00:46,203 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2022-01-10 06:00:46,252 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 06:00:46,252 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 107 [2022-01-10 06:00:46,257 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 116 [2022-01-10 06:00:46,263 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 114 [2022-01-10 06:00:46,331 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-01-10 06:00:46,352 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2022-01-10 06:00:46,588 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-01-10 06:00:46,588 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:00:46,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191713550] [2022-01-10 06:00:46,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191713550] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:00:46,589 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:00:46,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2022-01-10 06:00:46,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800597344] [2022-01-10 06:00:46,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:00:46,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-10 06:00:46,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:00:46,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-10 06:00:46,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-01-10 06:00:46,591 INFO L87 Difference]: Start difference. First operand 131 states and 162 transitions. Second operand has 15 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 13 states have internal predecessors, (43), 5 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2022-01-10 06:00:47,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:00:47,990 INFO L93 Difference]: Finished difference Result 248 states and 308 transitions. [2022-01-10 06:00:47,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-10 06:00:47,991 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 13 states have internal predecessors, (43), 5 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) Word has length 107 [2022-01-10 06:00:47,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:00:47,993 INFO L225 Difference]: With dead ends: 248 [2022-01-10 06:00:47,993 INFO L226 Difference]: Without dead ends: 193 [2022-01-10 06:00:47,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2022-01-10 06:00:47,995 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 178 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 06:00:47,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 1717 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 06:00:47,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-01-10 06:00:48,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 157. [2022-01-10 06:00:48,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 121 states have (on average 1.2644628099173554) internal successors, (153), 137 states have internal predecessors, (153), 27 states have call successors, (27), 10 states have call predecessors, (27), 8 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2022-01-10 06:00:48,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 193 transitions. [2022-01-10 06:00:48,007 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 193 transitions. Word has length 107 [2022-01-10 06:00:48,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:00:48,007 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 193 transitions. [2022-01-10 06:00:48,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 13 states have internal predecessors, (43), 5 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2022-01-10 06:00:48,008 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 193 transitions. [2022-01-10 06:00:48,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 06:00:48,010 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:00:48,010 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:00:48,045 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 06:00:48,227 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 06:00:48,228 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:00:48,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:00:48,229 INFO L85 PathProgramCache]: Analyzing trace with hash -2083518563, now seen corresponding path program 1 times [2022-01-10 06:00:48,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:00:48,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407492791] [2022-01-10 06:00:48,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:00:48,230 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:00:48,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:00:48,236 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:00:48,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 06:00:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:00:48,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 33 conjunts are in the unsatisfiable core [2022-01-10 06:00:49,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:00:49,043 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-10 06:00:49,075 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-10 06:00:49,302 WARN L860 $PredicateComparison]: unable to prove that (exists ((|##fun~$Pointer$~TO~VOID_alloc_or_die_slave_~ptr~0#1.base| (_ BitVec 64)) (v_ArrVal_586 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_585 (Array (_ BitVec 64) (_ BitVec 64)))) (and (= |c_##fun~$Pointer$~TO~VOID_dll_insert_slave_~next~0#1.offset| (select (select (store |c_old(#memory_$Pointer$.offset)| |##fun~$Pointer$~TO~VOID_alloc_or_die_slave_~ptr~0#1.base| v_ArrVal_585) |c_##fun~$Pointer$~TO~VOID_#in~10#1.base|) |c_##fun~$Pointer$~TO~VOID_#in~10#1.offset|)) (= (select |c_old(#valid)| |##fun~$Pointer$~TO~VOID_alloc_or_die_slave_~ptr~0#1.base|) (_ bv0 1)) (= (select (select (store |c_old(#memory_$Pointer$.base)| |##fun~$Pointer$~TO~VOID_alloc_or_die_slave_~ptr~0#1.base| v_ArrVal_586) |c_##fun~$Pointer$~TO~VOID_#in~10#1.base|) |c_##fun~$Pointer$~TO~VOID_#in~10#1.offset|) |c_##fun~$Pointer$~TO~VOID_dll_insert_slave_~next~0#1.base|))) is different from true [2022-01-10 06:00:49,367 WARN L860 $PredicateComparison]: unable to prove that (exists ((|##fun~$Pointer$~TO~VOID_alloc_or_die_slave_~ptr~0#1.base| (_ BitVec 64))) (and (or (exists ((v_ArrVal_586 (Array (_ BitVec 64) (_ BitVec 64)))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |##fun~$Pointer$~TO~VOID_alloc_or_die_slave_~ptr~0#1.base| v_ArrVal_586) |c_##fun~$Pointer$~TO~VOID_#in~10#1.base|) |c_##fun~$Pointer$~TO~VOID_#in~10#1.offset|) (_ bv0 64)))) (exists ((v_ArrVal_585 (Array (_ BitVec 64) (_ BitVec 64)))) (not (= (_ bv0 64) (select (select (store |c_old(#memory_$Pointer$.offset)| |##fun~$Pointer$~TO~VOID_alloc_or_die_slave_~ptr~0#1.base| v_ArrVal_585) |c_##fun~$Pointer$~TO~VOID_#in~10#1.base|) |c_##fun~$Pointer$~TO~VOID_#in~10#1.offset|))))) (= (select |c_old(#valid)| |##fun~$Pointer$~TO~VOID_alloc_or_die_slave_~ptr~0#1.base|) (_ bv0 1)))) is different from true [2022-01-10 06:00:49,487 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-10 06:00:49,487 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-10 06:00:49,616 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-01-10 06:00:49,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:00:49,616 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:00:49,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407492791] [2022-01-10 06:00:49,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407492791] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:00:49,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:00:49,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 06:00:49,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690283045] [2022-01-10 06:00:49,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:00:49,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 06:00:49,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:00:49,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 06:00:49,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=39, Unknown=3, NotChecked=26, Total=90 [2022-01-10 06:00:49,618 INFO L87 Difference]: Start difference. First operand 157 states and 193 transitions. Second operand has 10 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 1 states have call predecessors, (11), 4 states have call successors, (11) [2022-01-10 06:00:50,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:00:50,288 INFO L93 Difference]: Finished difference Result 311 states and 389 transitions. [2022-01-10 06:00:50,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 06:00:50,289 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 1 states have call predecessors, (11), 4 states have call successors, (11) Word has length 110 [2022-01-10 06:00:50,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:00:50,290 INFO L225 Difference]: With dead ends: 311 [2022-01-10 06:00:50,290 INFO L226 Difference]: Without dead ends: 161 [2022-01-10 06:00:50,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=39, Unknown=3, NotChecked=26, Total=90 [2022-01-10 06:00:50,291 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 34 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 395 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 06:00:50,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 393 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 307 Invalid, 0 Unknown, 395 Unchecked, 0.6s Time] [2022-01-10 06:00:50,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-01-10 06:00:50,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-01-10 06:00:50,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 124 states have (on average 1.2580645161290323) internal successors, (156), 141 states have internal predecessors, (156), 27 states have call successors, (27), 10 states have call predecessors, (27), 9 states have return successors, (15), 11 states have call predecessors, (15), 13 states have call successors, (15) [2022-01-10 06:00:50,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 198 transitions. [2022-01-10 06:00:50,303 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 198 transitions. Word has length 110 [2022-01-10 06:00:50,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:00:50,304 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 198 transitions. [2022-01-10 06:00:50,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 1 states have call predecessors, (11), 4 states have call successors, (11) [2022-01-10 06:00:50,305 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 198 transitions. [2022-01-10 06:00:50,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 06:00:50,309 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:00:50,310 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:00:50,326 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-01-10 06:00:50,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:00:50,510 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:00:50,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:00:50,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1464901529, now seen corresponding path program 1 times [2022-01-10 06:00:50,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:00:50,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779351981] [2022-01-10 06:00:50,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:00:50,513 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:00:50,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:00:50,515 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:00:50,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 06:00:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:00:51,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 60 conjunts are in the unsatisfiable core [2022-01-10 06:00:51,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:00:51,366 INFO L353 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-01-10 06:00:51,367 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2022-01-10 06:00:51,372 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-01-10 06:00:51,378 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-01-10 06:00:51,402 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-10 06:00:51,425 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-10 06:00:51,425 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 34 [2022-01-10 06:00:51,428 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2022-01-10 06:00:51,890 INFO L353 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-01-10 06:00:51,891 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2022-01-10 06:00:51,929 INFO L353 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-01-10 06:00:51,929 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2022-01-10 06:00:51,942 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-01-10 06:00:51,954 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-01-10 06:00:51,961 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-01-10 06:00:51,968 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-01-10 06:00:52,013 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-01-10 06:00:52,022 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-01-10 06:00:52,078 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2022-01-10 06:00:52,081 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-01-10 06:00:52,127 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2022-01-10 06:00:52,130 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-01-10 06:00:52,289 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2022-01-10 06:00:52,293 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2022-01-10 06:00:52,378 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-01-10 06:00:52,846 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-10 06:00:52,846 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 13 [2022-01-10 06:00:52,888 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 29 proven. 25 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-01-10 06:00:52,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:00:57,417 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 44 [2022-01-10 06:00:57,422 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 53 [2022-01-10 06:00:57,426 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 62 [2022-01-10 06:00:57,430 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 60 [2022-01-10 06:00:57,453 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-01-10 06:00:57,472 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_dll_insert_master_alloc_or_die_master_#res#1.base_53| (_ BitVec 64)) (v_ArrVal_893 (Array (_ BitVec 64) (_ BitVec 64)))) (or (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| |v_dll_insert_master_alloc_or_die_master_#res#1.base_53| v_ArrVal_893) |c_dll_create_generic_~#dll~0.base|) |c_dll_create_generic_~#dll~0.offset|))) (and (= |v_dll_insert_master_alloc_or_die_master_#res#1.base_53| |c_dll_create_generic_~#dll~0.base|) (= (_ bv0 64) |c_dll_create_generic_~#dll~0.offset|) (not (= (_ bv0 64) |v_dll_insert_master_alloc_or_die_master_#res#1.base_53|))))) is different from false [2022-01-10 06:00:57,473 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:00:57,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [779351981] [2022-01-10 06:00:57,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [779351981] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 06:00:57,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1315345633] [2022-01-10 06:00:57,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:00:57,474 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-01-10 06:00:57,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2022-01-10 06:00:57,476 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-01-10 06:00:57,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-01-10 06:00:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:00:59,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 35 conjunts are in the unsatisfiable core [2022-01-10 06:00:59,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:01:00,485 INFO L353 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-01-10 06:01:00,486 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2022-01-10 06:01:00,494 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-01-10 06:01:00,500 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-01-10 06:01:00,544 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-10 06:01:00,565 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-10 06:01:00,565 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 34 [2022-01-10 06:01:00,568 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2022-01-10 06:01:00,847 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-01-10 06:01:01,950 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2022-01-10 06:01:01,954 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-01-10 06:01:03,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:01:03,061 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 84 proven. 25 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-01-10 06:01:03,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:01:04,066 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1125 (Array (_ BitVec 64) (_ BitVec 64))) (|v_dll_insert_master_~item~1#1.base_60| (_ BitVec 64))) (or (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| |v_dll_insert_master_~item~1#1.base_60| v_ArrVal_1125) |c_dll_create_generic_~#dll~0.base|) |c_dll_create_generic_~#dll~0.offset|))) (not (bvult |v_dll_insert_master_~item~1#1.base_60| |c_#StackHeapBarrier|)))) is different from false [2022-01-10 06:01:04,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1315345633] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 06:01:04,068 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:01:04,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 19] total 43 [2022-01-10 06:01:04,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520140741] [2022-01-10 06:01:04,068 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:01:04,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-01-10 06:01:04,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:01:04,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-01-10 06:01:04,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=2254, Unknown=51, NotChecked=194, Total=2652 [2022-01-10 06:01:04,070 INFO L87 Difference]: Start difference. First operand 161 states and 198 transitions. Second operand has 43 states, 38 states have (on average 2.973684210526316) internal successors, (113), 37 states have internal predecessors, (113), 17 states have call successors, (25), 7 states have call predecessors, (25), 13 states have return successors, (23), 16 states have call predecessors, (23), 15 states have call successors, (23) [2022-01-10 06:01:09,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:01:09,088 INFO L93 Difference]: Finished difference Result 341 states and 424 transitions. [2022-01-10 06:01:09,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-10 06:01:09,089 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 38 states have (on average 2.973684210526316) internal successors, (113), 37 states have internal predecessors, (113), 17 states have call successors, (25), 7 states have call predecessors, (25), 13 states have return successors, (23), 16 states have call predecessors, (23), 15 states have call successors, (23) Word has length 110 [2022-01-10 06:01:09,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:01:09,090 INFO L225 Difference]: With dead ends: 341 [2022-01-10 06:01:09,090 INFO L226 Difference]: Without dead ends: 188 [2022-01-10 06:01:09,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 205 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=329, Invalid=4138, Unknown=97, NotChecked=266, Total=4830 [2022-01-10 06:01:09,093 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 164 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 2547 SdHoareTripleChecker+Invalid, 3301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1686 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-10 06:01:09,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 2547 Invalid, 3301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1561 Invalid, 0 Unknown, 1686 Unchecked, 2.9s Time] [2022-01-10 06:01:09,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-01-10 06:01:09,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 176. [2022-01-10 06:01:09,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 131 states have (on average 1.2442748091603053) internal successors, (163), 150 states have internal predecessors, (163), 31 states have call successors, (31), 11 states have call predecessors, (31), 13 states have return successors, (24), 16 states have call predecessors, (24), 17 states have call successors, (24) [2022-01-10 06:01:09,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 218 transitions. [2022-01-10 06:01:09,106 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 218 transitions. Word has length 110 [2022-01-10 06:01:09,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:01:09,106 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 218 transitions. [2022-01-10 06:01:09,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 38 states have (on average 2.973684210526316) internal successors, (113), 37 states have internal predecessors, (113), 17 states have call successors, (25), 7 states have call predecessors, (25), 13 states have return successors, (23), 16 states have call predecessors, (23), 15 states have call successors, (23) [2022-01-10 06:01:09,106 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 218 transitions. [2022-01-10 06:01:09,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 06:01:09,107 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:01:09,107 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:01:09,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-01-10 06:01:09,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-01-10 06:01:09,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:01:09,518 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:01:09,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:01:09,519 INFO L85 PathProgramCache]: Analyzing trace with hash -923662501, now seen corresponding path program 1 times [2022-01-10 06:01:09,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:01:09,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1367566345] [2022-01-10 06:01:09,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:01:09,520 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:01:09,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:01:09,521 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:01:09,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-01-10 06:01:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:01:10,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 32 conjunts are in the unsatisfiable core [2022-01-10 06:01:10,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:01:10,353 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-10 06:01:10,571 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1327 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1326 (Array (_ BitVec 64) (_ BitVec 64))) (|dll_insert_master_alloc_or_die_master_~ptr~1#1.base| (_ BitVec 64))) (and (= (select |c_old(#valid)| |dll_insert_master_alloc_or_die_master_~ptr~1#1.base|) (_ bv0 1)) (= (select (select (store |c_old(#memory_$Pointer$.base)| |dll_insert_master_alloc_or_die_master_~ptr~1#1.base| v_ArrVal_1326) |c_dll_insert_master_#in~dll#1.base|) |c_dll_insert_master_#in~dll#1.offset|) |c_dll_insert_master_~next~3#1.base|) (= |c_dll_insert_master_~next~3#1.offset| (select (select (store |c_old(#memory_$Pointer$.offset)| |dll_insert_master_alloc_or_die_master_~ptr~1#1.base| v_ArrVal_1327) |c_dll_insert_master_#in~dll#1.base|) |c_dll_insert_master_#in~dll#1.offset|)))) is different from true [2022-01-10 06:01:15,024 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 92 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-10 06:01:15,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:01:15,904 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_dll_insert_master_alloc_or_die_master_~ptr~1#1.base_80| (_ BitVec 64))) (or (and (forall ((v_ArrVal_1353 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| |v_dll_insert_master_alloc_or_die_master_~ptr~1#1.base_80| v_ArrVal_1353) |c_dll_create_generic_~#dll~0.base|) |c_dll_create_generic_~#dll~0.offset|))) (forall ((v_ArrVal_1354 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.offset| |v_dll_insert_master_alloc_or_die_master_~ptr~1#1.base_80| v_ArrVal_1354) |c_dll_create_generic_~#dll~0.base|) |c_dll_create_generic_~#dll~0.offset|)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_dll_insert_master_alloc_or_die_master_~ptr~1#1.base_80|)))))) is different from false [2022-01-10 06:01:15,907 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:01:15,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1367566345] [2022-01-10 06:01:15,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1367566345] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 06:01:15,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [165738537] [2022-01-10 06:01:15,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:01:15,907 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-01-10 06:01:15,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2022-01-10 06:01:15,908 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-01-10 06:01:15,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-01-10 06:01:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:01:17,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 31 conjunts are in the unsatisfiable core [2022-01-10 06:01:17,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:01:17,427 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-01-10 06:01:17,431 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-01-10 06:01:26,250 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 32 [2022-01-10 06:01:26,255 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2022-01-10 06:01:26,259 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 39 [2022-01-10 06:01:26,262 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2022-01-10 06:01:34,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:01:34,129 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2022-01-10 06:01:34,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:01:34,208 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 5 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-01-10 06:01:34,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:01:39,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [165738537] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 06:01:39,417 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:01:39,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2022-01-10 06:01:39,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086694247] [2022-01-10 06:01:39,418 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:01:39,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-10 06:01:39,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:01:39,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-10 06:01:39,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=256, Unknown=46, NotChecked=70, Total=420 [2022-01-10 06:01:39,419 INFO L87 Difference]: Start difference. First operand 176 states and 218 transitions. Second operand has 19 states, 17 states have (on average 5.176470588235294) internal successors, (88), 17 states have internal predecessors, (88), 9 states have call successors, (20), 5 states have call predecessors, (20), 7 states have return successors, (18), 7 states have call predecessors, (18), 9 states have call successors, (18) [2022-01-10 06:01:42,223 WARN L860 $PredicateComparison]: unable to prove that (and (not (= (_ bv0 64) (bvadd (_ bv1 64) |c_#StackHeapBarrier|))) (exists ((v_ArrVal_1327 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1326 (Array (_ BitVec 64) (_ BitVec 64))) (|dll_insert_master_alloc_or_die_master_~ptr~1#1.base| (_ BitVec 64))) (and (= (select |c_old(#valid)| |dll_insert_master_alloc_or_die_master_~ptr~1#1.base|) (_ bv0 1)) (= (select (select (store |c_old(#memory_$Pointer$.base)| |dll_insert_master_alloc_or_die_master_~ptr~1#1.base| v_ArrVal_1326) |c_dll_insert_master_#in~dll#1.base|) |c_dll_insert_master_#in~dll#1.offset|) |c_dll_insert_master_~next~3#1.base|) (= |c_dll_insert_master_~next~3#1.offset| (select (select (store |c_old(#memory_$Pointer$.offset)| |dll_insert_master_alloc_or_die_master_~ptr~1#1.base| v_ArrVal_1327) |c_dll_insert_master_#in~dll#1.base|) |c_dll_insert_master_#in~dll#1.offset|)))) (exists ((v_ArrVal_1554 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1555 (Array (_ BitVec 64) (_ BitVec 64))) (|dll_insert_master_~item~1#1.base| (_ BitVec 64))) (and (= (select (select (store |c_old(#memory_$Pointer$.base)| |dll_insert_master_~item~1#1.base| v_ArrVal_1554) |c_dll_insert_master_#in~dll#1.base|) |c_dll_insert_master_#in~dll#1.offset|) |c_dll_insert_master_~next~3#1.base|) (bvult |dll_insert_master_~item~1#1.base| |c_#StackHeapBarrier|) (= |c_dll_insert_master_~next~3#1.offset| (select (select (store |c_old(#memory_$Pointer$.offset)| |dll_insert_master_~item~1#1.base| v_ArrVal_1555) |c_dll_insert_master_#in~dll#1.base|) |c_dll_insert_master_#in~dll#1.offset|))))) is different from true