/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/array-fpi/nsqmf.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 09:57:07,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 09:57:07,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 09:57:07,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 09:57:07,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 09:57:07,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 09:57:07,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 09:57:07,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 09:57:07,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 09:57:07,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 09:57:07,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 09:57:07,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 09:57:07,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 09:57:07,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 09:57:07,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 09:57:07,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 09:57:07,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 09:57:07,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 09:57:07,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 09:57:07,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 09:57:07,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 09:57:07,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 09:57:07,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 09:57:07,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 09:57:07,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 09:57:07,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 09:57:07,323 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 09:57:07,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 09:57:07,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 09:57:07,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-01-10 09:57:07,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 09:57:07,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 09:57:07,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 09:57:07,333 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 09:57:07,355 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 09:57:07,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 09:57:07,355 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 09:57:07,355 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 09:57:07,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 09:57:07,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 09:57:07,356 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 09:57:07,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 09:57:07,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 09:57:07,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 09:57:07,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 09:57:07,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 09:57:07,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 09:57:07,356 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 09:57:07,357 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 09:57:07,357 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 09:57:07,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 09:57:07,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 09:57:07,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 09:57:07,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 09:57:07,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 09:57:07,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 09:57:07,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 09:57:07,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 09:57:07,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 09:57:07,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 09:57:07,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 09:57:07,358 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 09:57:07,358 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 09:57:07,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 09:57:07,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 09:57:07,358 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 09:57:07,358 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 09:57:07,358 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 09:57:07,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 09:57:07,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 09:57:07,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 09:57:07,567 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 09:57:07,567 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 09:57:07,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/nsqmf.c [2022-01-10 09:57:07,627 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0aefb65e/17d42138669f4b9997bc6127b9f014d5/FLAG1efb02b76 [2022-01-10 09:57:07,962 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 09:57:07,963 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/nsqmf.c [2022-01-10 09:57:07,967 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0aefb65e/17d42138669f4b9997bc6127b9f014d5/FLAG1efb02b76 [2022-01-10 09:57:07,978 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0aefb65e/17d42138669f4b9997bc6127b9f014d5 [2022-01-10 09:57:07,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 09:57:07,981 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 09:57:07,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 09:57:07,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 09:57:07,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 09:57:07,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:57:07" (1/1) ... [2022-01-10 09:57:07,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf903ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:57:07, skipping insertion in model container [2022-01-10 09:57:07,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:57:07" (1/1) ... [2022-01-10 09:57:07,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 09:57:07,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 09:57:08,124 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/nsqmf.c[588,601] [2022-01-10 09:57:08,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 09:57:08,168 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 09:57:08,177 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/nsqmf.c[588,601] [2022-01-10 09:57:08,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 09:57:08,210 INFO L208 MainTranslator]: Completed translation [2022-01-10 09:57:08,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:57:08 WrapperNode [2022-01-10 09:57:08,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 09:57:08,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 09:57:08,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 09:57:08,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 09:57:08,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:57:08" (1/1) ... [2022-01-10 09:57:08,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:57:08" (1/1) ... [2022-01-10 09:57:08,232 INFO L137 Inliner]: procedures = 18, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-01-10 09:57:08,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 09:57:08,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 09:57:08,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 09:57:08,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 09:57:08,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:57:08" (1/1) ... [2022-01-10 09:57:08,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:57:08" (1/1) ... [2022-01-10 09:57:08,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:57:08" (1/1) ... [2022-01-10 09:57:08,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:57:08" (1/1) ... [2022-01-10 09:57:08,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:57:08" (1/1) ... [2022-01-10 09:57:08,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:57:08" (1/1) ... [2022-01-10 09:57:08,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:57:08" (1/1) ... [2022-01-10 09:57:08,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 09:57:08,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 09:57:08,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 09:57:08,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 09:57:08,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:57:08" (1/1) ... [2022-01-10 09:57:08,263 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 09:57:08,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:57:08,278 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 09:57:08,280 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 09:57:08,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 09:57:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 09:57:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-01-10 09:57:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 09:57:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 09:57:08,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 09:57:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-01-10 09:57:08,341 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 09:57:08,342 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 09:57:08,523 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 09:57:08,527 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 09:57:08,527 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-10 09:57:08,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:57:08 BoogieIcfgContainer [2022-01-10 09:57:08,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 09:57:08,528 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 09:57:08,528 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 09:57:08,529 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 09:57:08,531 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:57:08" (1/1) ... [2022-01-10 09:57:08,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:57:08 BasicIcfg [2022-01-10 09:57:08,615 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 09:57:08,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 09:57:08,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 09:57:08,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 09:57:08,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 09:57:07" (1/4) ... [2022-01-10 09:57:08,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bb805a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:57:08, skipping insertion in model container [2022-01-10 09:57:08,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:57:08" (2/4) ... [2022-01-10 09:57:08,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bb805a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:57:08, skipping insertion in model container [2022-01-10 09:57:08,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:57:08" (3/4) ... [2022-01-10 09:57:08,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bb805a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:57:08, skipping insertion in model container [2022-01-10 09:57:08,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:57:08" (4/4) ... [2022-01-10 09:57:08,620 INFO L111 eAbstractionObserver]: Analyzing ICFG nsqmf.cTransformedIcfg [2022-01-10 09:57:08,623 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 09:57:08,623 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 09:57:08,655 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 09:57:08,659 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 09:57:08,660 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 09:57:08,682 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 09:57:08,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 09:57:08,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:57:08,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:57:08,687 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:57:08,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:57:08,690 INFO L85 PathProgramCache]: Analyzing trace with hash 751161390, now seen corresponding path program 1 times [2022-01-10 09:57:08,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:57:08,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256546579] [2022-01-10 09:57:08,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:57:08,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:57:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:57:08,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 09:57:08,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:57:08,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256546579] [2022-01-10 09:57:08,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256546579] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 09:57:08,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 09:57:08,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 09:57:08,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129288545] [2022-01-10 09:57:08,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 09:57:08,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 09:57:08,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:57:08,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 09:57:08,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 09:57:08,889 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 09:57:08,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:57:08,901 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2022-01-10 09:57:08,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 09:57:08,904 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-01-10 09:57:08,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:57:08,910 INFO L225 Difference]: With dead ends: 38 [2022-01-10 09:57:08,910 INFO L226 Difference]: Without dead ends: 17 [2022-01-10 09:57:08,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 09:57:08,915 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 09:57:08,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 09:57:08,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-01-10 09:57:08,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-01-10 09:57:08,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 09:57:08,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-01-10 09:57:08,946 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2022-01-10 09:57:08,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:57:08,946 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-01-10 09:57:08,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 09:57:08,948 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-01-10 09:57:08,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 09:57:08,948 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:57:08,949 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:57:08,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 09:57:08,949 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:57:08,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:57:08,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1055369552, now seen corresponding path program 1 times [2022-01-10 09:57:08,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:57:08,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345780543] [2022-01-10 09:57:08,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:57:08,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:57:09,026 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 09:57:09,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [762944858] [2022-01-10 09:57:09,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:57:09,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:57:09,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:57:09,029 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 09:57:09,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 09:57:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 09:57:09,177 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 09:57:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 09:57:09,224 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 09:57:09,225 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 09:57:09,225 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 09:57:09,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-10 09:57:09,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:57:09,430 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-10 09:57:09,432 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 09:57:09,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:57:09 BasicIcfg [2022-01-10 09:57:09,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 09:57:09,467 INFO L158 Benchmark]: Toolchain (without parser) took 1485.28ms. Allocated memory is still 196.1MB. Free memory was 139.9MB in the beginning and 103.5MB in the end (delta: 36.5MB). Peak memory consumption was 37.4MB. Max. memory is 8.0GB. [2022-01-10 09:57:09,468 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 196.1MB. Free memory was 156.2MB in the beginning and 156.1MB in the end (delta: 69.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 09:57:09,471 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.92ms. Allocated memory is still 196.1MB. Free memory was 139.7MB in the beginning and 167.1MB in the end (delta: -27.3MB). Peak memory consumption was 7.0MB. Max. memory is 8.0GB. [2022-01-10 09:57:09,471 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.37ms. Allocated memory is still 196.1MB. Free memory was 167.1MB in the beginning and 165.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 09:57:09,473 INFO L158 Benchmark]: Boogie Preprocessor took 24.48ms. Allocated memory is still 196.1MB. Free memory was 165.6MB in the beginning and 164.3MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 09:57:09,473 INFO L158 Benchmark]: RCFGBuilder took 270.13ms. Allocated memory is still 196.1MB. Free memory was 164.3MB in the beginning and 152.0MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-10 09:57:09,473 INFO L158 Benchmark]: IcfgTransformer took 86.46ms. Allocated memory is still 196.1MB. Free memory was 152.0MB in the beginning and 145.0MB in the end (delta: 7.0MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-01-10 09:57:09,475 INFO L158 Benchmark]: TraceAbstraction took 849.63ms. Allocated memory is still 196.1MB. Free memory was 144.7MB in the beginning and 103.5MB in the end (delta: 41.2MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. [2022-01-10 09:57:09,481 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 196.1MB. Free memory was 156.2MB in the beginning and 156.1MB in the end (delta: 69.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 228.92ms. Allocated memory is still 196.1MB. Free memory was 139.7MB in the beginning and 167.1MB in the end (delta: -27.3MB). Peak memory consumption was 7.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.37ms. Allocated memory is still 196.1MB. Free memory was 167.1MB in the beginning and 165.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.48ms. Allocated memory is still 196.1MB. Free memory was 165.6MB in the beginning and 164.3MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 270.13ms. Allocated memory is still 196.1MB. Free memory was 164.3MB in the beginning and 152.0MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * IcfgTransformer took 86.46ms. Allocated memory is still 196.1MB. Free memory was 152.0MB in the beginning and 145.0MB in the end (delta: 7.0MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 849.63ms. Allocated memory is still 196.1MB. Free memory was 144.7MB in the beginning and 103.5MB in the end (delta: 41.2MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] b[0] = 1 [L32] a[0] = 1 [L34] i=1 VAL [a={-2:0}, b={-3:0}, i=1, N=1] [L34] COND FALSE !(i