/usr/bin/java -ea -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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/freire2_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-08 12:43:39,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-08 12:43:39,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-08 12:43:39,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-08 12:43:39,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-08 12:43:39,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-08 12:43:39,566 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-08 12:43:39,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-08 12:43:39,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-08 12:43:39,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-08 12:43:39,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-08 12:43:39,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-08 12:43:39,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-08 12:43:39,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-08 12:43:39,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-08 12:43:39,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-08 12:43:39,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-08 12:43:39,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-08 12:43:39,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-08 12:43:39,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-08 12:43:39,584 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-08 12:43:39,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-08 12:43:39,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-08 12:43:39,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-08 12:43:39,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-08 12:43:39,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-08 12:43:39,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-08 12:43:39,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-08 12:43:39,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-08 12:43:39,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-08 12:43:39,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-08 12:43:39,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-08 12:43:39,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-08 12:43:39,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-08 12:43:39,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-08 12:43:39,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-08 12:43:39,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-08 12:43:39,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-08 12:43:39,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-08 12:43:39,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-08 12:43:39,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-08 12:43:39,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-08 12:43:39,604 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-04-08 12:43:39,615 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-08 12:43:39,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-08 12:43:39,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-08 12:43:39,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-08 12:43:39,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-08 12:43:39,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-08 12:43:39,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-08 12:43:39,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-08 12:43:39,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-08 12:43:39,617 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-08 12:43:39,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-08 12:43:39,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-08 12:43:39,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-08 12:43:39,618 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-08 12:43:39,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-08 12:43:39,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-08 12:43:39,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-08 12:43:39,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-08 12:43:39,618 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-08 12:43:39,618 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-08 12:43:39,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-08 12:43:39,618 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-08 12:43:39,618 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-08 12:43:39,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-08 12:43:39,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-08 12:43:39,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-08 12:43:39,812 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-08 12:43:39,812 INFO L275 PluginConnector]: CDTParser initialized [2022-04-08 12:43:39,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/freire2_valuebound1.c [2022-04-08 12:43:39,872 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a9c53022/6b7f8c8e1d1b4e5595e04677ff337828/FLAG5b33442bc [2022-04-08 12:43:40,174 INFO L306 CDTParser]: Found 1 translation units. [2022-04-08 12:43:40,174 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire2_valuebound1.c [2022-04-08 12:43:40,179 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a9c53022/6b7f8c8e1d1b4e5595e04677ff337828/FLAG5b33442bc [2022-04-08 12:43:40,615 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a9c53022/6b7f8c8e1d1b4e5595e04677ff337828 [2022-04-08 12:43:40,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-08 12:43:40,618 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-08 12:43:40,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-08 12:43:40,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-08 12:43:40,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-08 12:43:40,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 12:43:40" (1/1) ... [2022-04-08 12:43:40,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@139f2d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:43:40, skipping insertion in model container [2022-04-08 12:43:40,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 12:43:40" (1/1) ... [2022-04-08 12:43:40,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-08 12:43:40,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-08 12:43:40,785 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire2_valuebound1.c[709,722] [2022-04-08 12:43:40,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-08 12:43:40,803 INFO L203 MainTranslator]: Completed pre-run [2022-04-08 12:43:40,810 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire2_valuebound1.c[709,722] [2022-04-08 12:43:40,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-08 12:43:40,830 INFO L208 MainTranslator]: Completed translation [2022-04-08 12:43:40,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:43:40 WrapperNode [2022-04-08 12:43:40,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-08 12:43:40,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-08 12:43:40,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-08 12:43:40,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-08 12:43:40,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:43:40" (1/1) ... [2022-04-08 12:43:40,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:43:40" (1/1) ... [2022-04-08 12:43:40,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:43:40" (1/1) ... [2022-04-08 12:43:40,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:43:40" (1/1) ... [2022-04-08 12:43:40,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:43:40" (1/1) ... [2022-04-08 12:43:40,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:43:40" (1/1) ... [2022-04-08 12:43:40,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:43:40" (1/1) ... [2022-04-08 12:43:40,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-08 12:43:40,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-08 12:43:40,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-08 12:43:40,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-08 12:43:40,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:43:40" (1/1) ... [2022-04-08 12:43:40,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-08 12:43:40,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 12:43:40,881 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) [2022-04-08 12:43:40,896 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 [2022-04-08 12:43:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-08 12:43:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-08 12:43:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-08 12:43:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-08 12:43:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-08 12:43:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-08 12:43:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-08 12:43:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-08 12:43:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-08 12:43:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-08 12:43:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2022-04-08 12:43:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-08 12:43:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-08 12:43:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-08 12:43:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-08 12:43:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-08 12:43:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-08 12:43:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-08 12:43:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-08 12:43:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-08 12:43:40,946 INFO L234 CfgBuilder]: Building ICFG [2022-04-08 12:43:40,947 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-08 12:43:41,033 INFO L275 CfgBuilder]: Performing block encoding [2022-04-08 12:43:41,047 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-08 12:43:41,048 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-08 12:43:41,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 12:43:41 BoogieIcfgContainer [2022-04-08 12:43:41,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-08 12:43:41,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-08 12:43:41,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-08 12:43:41,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-08 12:43:41,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.04 12:43:40" (1/3) ... [2022-04-08 12:43:41,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c931a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 12:43:41, skipping insertion in model container [2022-04-08 12:43:41,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:43:40" (2/3) ... [2022-04-08 12:43:41,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c931a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 12:43:41, skipping insertion in model container [2022-04-08 12:43:41,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 12:43:41" (3/3) ... [2022-04-08 12:43:41,064 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound1.c [2022-04-08 12:43:41,067 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-08 12:43:41,067 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-08 12:43:41,124 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-08 12:43:41,144 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2022-04-08 12:43:41,145 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-08 12:43:41,164 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-08 12:43:41,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-08 12:43:41,168 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 12:43:41,169 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 12:43:41,169 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 12:43:41,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 12:43:41,172 INFO L85 PathProgramCache]: Analyzing trace with hash 326851384, now seen corresponding path program 1 times [2022-04-08 12:43:41,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 12:43:41,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1889196559] [2022-04-08 12:43:41,191 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 12:43:41,192 INFO L85 PathProgramCache]: Analyzing trace with hash 326851384, now seen corresponding path program 2 times [2022-04-08 12:43:41,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 12:43:41,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027996000] [2022-04-08 12:43:41,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 12:43:41,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 12:43:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 12:43:41,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 12:43:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 12:43:41,350 INFO L290 TraceCheckUtils]: 0: Hoare triple {43#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); {34#true} is VALID [2022-04-08 12:43:41,351 INFO L290 TraceCheckUtils]: 1: Hoare triple {34#true} assume true; {34#true} is VALID [2022-04-08 12:43:41,351 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {34#true} {34#true} #69#return; {34#true} is VALID [2022-04-08 12:43:41,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-08 12:43:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 12:43:41,365 INFO L290 TraceCheckUtils]: 0: Hoare triple {34#true} ~cond := #in~cond; {34#true} is VALID [2022-04-08 12:43:41,365 INFO L290 TraceCheckUtils]: 1: Hoare triple {34#true} assume 0 == ~cond;assume false; {35#false} is VALID [2022-04-08 12:43:41,366 INFO L290 TraceCheckUtils]: 2: Hoare triple {35#false} assume true; {35#false} is VALID [2022-04-08 12:43:41,366 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {35#false} {34#true} #55#return; {35#false} is VALID [2022-04-08 12:43:41,371 INFO L272 TraceCheckUtils]: 0: Hoare triple {34#true} call ULTIMATE.init(); {43#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 12:43:41,371 INFO L290 TraceCheckUtils]: 1: Hoare triple {43#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); {34#true} is VALID [2022-04-08 12:43:41,371 INFO L290 TraceCheckUtils]: 2: Hoare triple {34#true} assume true; {34#true} is VALID [2022-04-08 12:43:41,371 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {34#true} {34#true} #69#return; {34#true} is VALID [2022-04-08 12:43:41,371 INFO L272 TraceCheckUtils]: 4: Hoare triple {34#true} call #t~ret5 := main(); {34#true} is VALID [2022-04-08 12:43:41,372 INFO L290 TraceCheckUtils]: 5: Hoare triple {34#true} havoc ~r~0;havoc ~a~0;havoc ~x~0;havoc ~s~0;~a~0 := #t~nondet4;havoc #t~nondet4; {34#true} is VALID [2022-04-08 12:43:41,372 INFO L272 TraceCheckUtils]: 6: Hoare triple {34#true} call assume_abort_if_not((if ~someBinaryDOUBLEComparisonOperation(~a~0, ~convertINTToDOUBLE(0)) && ~someBinaryDOUBLEComparisonOperation(~a~0, ~convertINTToDOUBLE(1)) then 1 else 0)); {34#true} is VALID [2022-04-08 12:43:41,372 INFO L290 TraceCheckUtils]: 7: Hoare triple {34#true} ~cond := #in~cond; {34#true} is VALID [2022-04-08 12:43:41,375 INFO L290 TraceCheckUtils]: 8: Hoare triple {34#true} assume 0 == ~cond;assume false; {35#false} is VALID [2022-04-08 12:43:41,376 INFO L290 TraceCheckUtils]: 9: Hoare triple {35#false} assume true; {35#false} is VALID [2022-04-08 12:43:41,376 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {35#false} {34#true} #55#return; {35#false} is VALID [2022-04-08 12:43:41,376 INFO L290 TraceCheckUtils]: 11: Hoare triple {35#false} ~x~0 := ~a~0;~s~0 := 3.25;~r~0 := 1; {35#false} is VALID [2022-04-08 12:43:41,376 INFO L290 TraceCheckUtils]: 12: Hoare triple {35#false} assume false; {35#false} is VALID [2022-04-08 12:43:41,376 INFO L272 TraceCheckUtils]: 13: Hoare triple {35#false} call __VERIFIER_assert((if 1 == ~convertDOUBLEToINT(~someBinaryArithmeticDOUBLEoperation(~convertINTToDOUBLE(4), ~s~0)) - 12 * ~r~0 * ~r~0 then 1 else 0)); {35#false} is VALID [2022-04-08 12:43:41,377 INFO L290 TraceCheckUtils]: 14: Hoare triple {35#false} ~cond := #in~cond; {35#false} is VALID [2022-04-08 12:43:41,377 INFO L290 TraceCheckUtils]: 15: Hoare triple {35#false} assume 0 == ~cond; {35#false} is VALID [2022-04-08 12:43:41,377 INFO L290 TraceCheckUtils]: 16: Hoare triple {35#false} assume !false; {35#false} is VALID [2022-04-08 12:43:41,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 12:43:41,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 12:43:41,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027996000] [2022-04-08 12:43:41,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027996000] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 12:43:41,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 12:43:41,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-08 12:43:41,380 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 12:43:41,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1889196559] [2022-04-08 12:43:41,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1889196559] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 12:43:41,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 12:43:41,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-08 12:43:41,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935115024] [2022-04-08 12:43:41,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 12:43:41,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-08 12:43:41,386 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 12:43:41,388 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-08 12:43:41,416 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 12:43:41,417 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-08 12:43:41,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 12:43:41,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-08 12:43:41,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-08 12:43:41,432 INFO L87 Difference]: Start difference. First operand has 31 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-08 12:43:41,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 12:43:41,523 INFO L93 Difference]: Finished difference Result 53 states and 76 transitions. [2022-04-08 12:43:41,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-08 12:43:41,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-08 12:43:41,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 12:43:41,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-08 12:43:41,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2022-04-08 12:43:41,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-08 12:43:41,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2022-04-08 12:43:41,538 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 76 transitions. [2022-04-08 12:43:41,610 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 76 edges. 76 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 12:43:41,616 INFO L225 Difference]: With dead ends: 53 [2022-04-08 12:43:41,616 INFO L226 Difference]: Without dead ends: 26 [2022-04-08 12:43:41,618 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-08 12:43:41,620 INFO L913 BasicCegarLoop]: 29 mSDtfsCounter, 15 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-08 12:43:41,621 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 32 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-08 12:43:41,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-04-08 12:43:41,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-04-08 12:43:41,659 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 12:43:41,660 INFO L82 GeneralOperation]: Start isEquivalent. First operand 26 states. Second operand has 26 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-08 12:43:41,661 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand has 26 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-08 12:43:41,661 INFO L87 Difference]: Start difference. First operand 26 states. Second operand has 26 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-08 12:43:41,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 12:43:41,674 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2022-04-08 12:43:41,674 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-04-08 12:43:41,675 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 12:43:41,675 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 12:43:41,676 INFO L74 IsIncluded]: Start isIncluded. First operand has 26 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 26 states. [2022-04-08 12:43:41,676 INFO L87 Difference]: Start difference. First operand has 26 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 26 states. [2022-04-08 12:43:41,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 12:43:41,681 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2022-04-08 12:43:41,681 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-04-08 12:43:41,683 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 12:43:41,683 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 12:43:41,686 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 12:43:41,686 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 12:43:41,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-08 12:43:41,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-04-08 12:43:41,691 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 17 [2022-04-08 12:43:41,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 12:43:41,692 INFO L478 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-04-08 12:43:41,692 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-08 12:43:41,692 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 26 states and 31 transitions. [2022-04-08 12:43:41,728 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 12:43:41,728 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-04-08 12:43:41,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-08 12:43:41,729 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 12:43:41,729 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 12:43:41,730 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-08 12:43:41,730 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 12:43:41,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 12:43:41,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1008578050, now seen corresponding path program 1 times [2022-04-08 12:43:41,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 12:43:41,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1362922567] [2022-04-08 12:43:41,741 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 12:43:41,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1008578050, now seen corresponding path program 2 times [2022-04-08 12:43:41,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 12:43:41,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691303548] [2022-04-08 12:43:41,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 12:43:41,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 12:43:41,757 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 12:43:41,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [220532523] [2022-04-08 12:43:41,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-08 12:43:41,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 12:43:41,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 12:43:41,768 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) [2022-04-08 12:43:41,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-08 12:43:41,810 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-04-08 12:43:41,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-04-08 12:43:41,811 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-08 12:43:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-08 12:43:41,834 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-08 12:43:41,835 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace [2022-04-08 12:43:41,835 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-08 12:43:41,837 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-08 12:43:41,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-08 12:43:42,052 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 12:43:42,055 INFO L719 BasicCegarLoop]: Path program histogram: [2, 2] [2022-04-08 12:43:42,056 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-08 12:43:42,075 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-08 12:43:42,076 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2022-04-08 12:43:42,076 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-08 12:43:42,076 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-08 12:43:42,076 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2022-04-08 12:43:42,076 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2022-04-08 12:43:42,076 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2022-04-08 12:43:42,076 WARN L170 areAnnotationChecker]: reach_errorFINAL has no Hoare annotation [2022-04-08 12:43:42,076 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-08 12:43:42,076 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-08 12:43:42,076 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-08 12:43:42,076 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2022-04-08 12:43:42,076 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2022-04-08 12:43:42,076 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2022-04-08 12:43:42,076 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2022-04-08 12:43:42,076 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2022-04-08 12:43:42,076 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2022-04-08 12:43:42,077 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-08 12:43:42,077 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-08 12:43:42,077 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2022-04-08 12:43:42,077 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2022-04-08 12:43:42,077 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2022-04-08 12:43:42,077 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2022-04-08 12:43:42,077 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2022-04-08 12:43:42,077 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2022-04-08 12:43:42,077 WARN L170 areAnnotationChecker]: L33-2 has no Hoare annotation [2022-04-08 12:43:42,077 WARN L170 areAnnotationChecker]: L33-2 has no Hoare annotation [2022-04-08 12:43:42,077 WARN L170 areAnnotationChecker]: L33-2 has no Hoare annotation [2022-04-08 12:43:42,077 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-08 12:43:42,077 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-08 12:43:42,077 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-08 12:43:42,077 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-08 12:43:42,077 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-08 12:43:42,077 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-08 12:43:42,077 WARN L170 areAnnotationChecker]: L33-3 has no Hoare annotation [2022-04-08 12:43:42,077 WARN L170 areAnnotationChecker]: L33-3 has no Hoare annotation [2022-04-08 12:43:42,078 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-04-08 12:43:42,078 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-04-08 12:43:42,078 WARN L170 areAnnotationChecker]: L34-1 has no Hoare annotation [2022-04-08 12:43:42,078 WARN L170 areAnnotationChecker]: L34-1 has no Hoare annotation [2022-04-08 12:43:42,078 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2022-04-08 12:43:42,078 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2022-04-08 12:43:42,078 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2022-04-08 12:43:42,078 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2022-04-08 12:43:42,078 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2022-04-08 12:43:42,078 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2022-04-08 12:43:42,078 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2022-04-08 12:43:42,078 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2022-04-08 12:43:42,078 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2022-04-08 12:43:42,078 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-08 12:43:42,078 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-08 12:43:42,078 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-08 12:43:42,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.04 12:43:42 BoogieIcfgContainer [2022-04-08 12:43:42,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-08 12:43:42,080 INFO L158 Benchmark]: Toolchain (without parser) took 1462.71ms. Allocated memory was 179.3MB in the beginning and 216.0MB in the end (delta: 36.7MB). Free memory was 130.0MB in the beginning and 177.6MB in the end (delta: -47.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-08 12:43:42,081 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 179.3MB. Free memory was 146.0MB in the beginning and 145.9MB in the end (delta: 76.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-08 12:43:42,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 210.35ms. Allocated memory is still 179.3MB. Free memory was 129.7MB in the beginning and 155.6MB in the end (delta: -25.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-04-08 12:43:42,081 INFO L158 Benchmark]: Boogie Preprocessor took 25.34ms. Allocated memory is still 179.3MB. Free memory was 155.6MB in the beginning and 154.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-08 12:43:42,082 INFO L158 Benchmark]: RCFGBuilder took 192.02ms. Allocated memory is still 179.3MB. Free memory was 154.0MB in the beginning and 143.0MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-08 12:43:42,082 INFO L158 Benchmark]: TraceAbstraction took 1029.68ms. Allocated memory was 179.3MB in the beginning and 216.0MB in the end (delta: 36.7MB). Free memory was 142.5MB in the beginning and 177.6MB in the end (delta: -35.1MB). Peak memory consumption was 2.6MB. Max. memory is 8.0GB. [2022-04-08 12:43:42,093 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 179.3MB. Free memory was 146.0MB in the beginning and 145.9MB in the end (delta: 76.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 210.35ms. Allocated memory is still 179.3MB. Free memory was 129.7MB in the beginning and 155.6MB in the end (delta: -25.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.34ms. Allocated memory is still 179.3MB. Free memory was 155.6MB in the beginning and 154.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 192.02ms. Allocated memory is still 179.3MB. Free memory was 154.0MB in the beginning and 143.0MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1029.68ms. Allocated memory was 179.3MB in the beginning and 216.0MB in the end (delta: 36.7MB). Free memory was 142.5MB in the beginning and 177.6MB in the end (delta: -35.1MB). Peak memory consumption was 2.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 34, overapproximation of someBinaryDOUBLEComparisonOperation at line 28. Possible FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L28] CALL assume_abort_if_not(a>=0 && a<=1) [L14] COND FALSE !(!cond) [L28] RET assume_abort_if_not(a>=0 && a<=1) [L29] x = a [L30] s = 3.25 [L31] r = 1 [L33] COND TRUE 1 [L34] CALL __VERIFIER_assert((int)(4*s) - 12*r*r == 1) [L17] COND TRUE !(cond) [L19] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 29 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-04-08 12:43:42,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...