/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/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/vnew1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-28 04:03:19,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-28 04:03:19,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-28 04:03:19,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-28 04:03:19,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-28 04:03:19,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-28 04:03:19,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-28 04:03:19,507 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-04-28 04:03:19,520 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-28 04:03:19,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-28 04:03:19,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-28 04:03:19,522 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-28 04:03:19,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-28 04:03:19,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-28 04:03:19,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-28 04:03:19,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-28 04:03:19,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-28 04:03:19,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-28 04:03:19,523 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-28 04:03:19,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-28 04:03:19,524 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-28 04:03:19,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-28 04:03:19,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-28 04:03:19,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-28 04:03:19,524 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-28 04:03:19,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-28 04:03:19,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-28 04:03:19,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-28 04:03:19,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-28 04:03:19,525 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-28 04:03:19,525 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-28 04:03:19,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-28 04:03:19,526 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-04-28 04:03:19,526 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-28 04:03:19,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-28 04:03:19,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-28 04:03:19,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-28 04:03:19,772 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-28 04:03:19,773 INFO L275 PluginConnector]: CDTParser initialized [2022-04-28 04:03:19,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/vnew1.c [2022-04-28 04:03:19,833 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acff5cb8f/2865a4cda4df4c328bff4f5ee9305731/FLAGdd1201377 [2022-04-28 04:03:20,183 INFO L306 CDTParser]: Found 1 translation units. [2022-04-28 04:03:20,183 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/vnew1.c [2022-04-28 04:03:20,189 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acff5cb8f/2865a4cda4df4c328bff4f5ee9305731/FLAGdd1201377 [2022-04-28 04:03:20,198 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acff5cb8f/2865a4cda4df4c328bff4f5ee9305731 [2022-04-28 04:03:20,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-28 04:03:20,201 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-28 04:03:20,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-28 04:03:20,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-28 04:03:20,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-28 04:03:20,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 04:03:20" (1/1) ... [2022-04-28 04:03:20,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53c34623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:03:20, skipping insertion in model container [2022-04-28 04:03:20,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 04:03:20" (1/1) ... [2022-04-28 04:03:20,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-28 04:03:20,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-28 04:03:20,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/vnew1.c[403,416] [2022-04-28 04:03:20,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-28 04:03:20,380 INFO L203 MainTranslator]: Completed pre-run [2022-04-28 04:03:20,390 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/vnew1.c[403,416] [2022-04-28 04:03:20,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-28 04:03:20,417 INFO L208 MainTranslator]: Completed translation [2022-04-28 04:03:20,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:03:20 WrapperNode [2022-04-28 04:03:20,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-28 04:03:20,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-28 04:03:20,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-28 04:03:20,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-28 04:03:20,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:03:20" (1/1) ... [2022-04-28 04:03:20,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:03:20" (1/1) ... [2022-04-28 04:03:20,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:03:20" (1/1) ... [2022-04-28 04:03:20,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:03:20" (1/1) ... [2022-04-28 04:03:20,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:03:20" (1/1) ... [2022-04-28 04:03:20,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:03:20" (1/1) ... [2022-04-28 04:03:20,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:03:20" (1/1) ... [2022-04-28 04:03:20,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-28 04:03:20,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-28 04:03:20,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-28 04:03:20,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-28 04:03:20,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:03:20" (1/1) ... [2022-04-28 04:03:20,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-28 04:03:20,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 04:03:20,468 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) [2022-04-28 04:03:20,479 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 [2022-04-28 04:03:20,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-28 04:03:20,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-28 04:03:20,499 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-28 04:03:20,500 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-28 04:03:20,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-28 04:03:20,500 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-28 04:03:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-28 04:03:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-28 04:03:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-28 04:03:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-28 04:03:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-28 04:03:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-28 04:03:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-04-28 04:03:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-28 04:03:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-28 04:03:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-28 04:03:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-28 04:03:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-28 04:03:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-28 04:03:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-28 04:03:20,551 INFO L234 CfgBuilder]: Building ICFG [2022-04-28 04:03:20,553 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-28 04:03:20,710 INFO L275 CfgBuilder]: Performing block encoding [2022-04-28 04:03:20,725 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-28 04:03:20,725 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-28 04:03:20,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 04:03:20 BoogieIcfgContainer [2022-04-28 04:03:20,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-28 04:03:20,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-28 04:03:20,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-28 04:03:20,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-28 04:03:20,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 04:03:20" (1/3) ... [2022-04-28 04:03:20,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@770c8dab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 04:03:20, skipping insertion in model container [2022-04-28 04:03:20,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:03:20" (2/3) ... [2022-04-28 04:03:20,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@770c8dab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 04:03:20, skipping insertion in model container [2022-04-28 04:03:20,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 04:03:20" (3/3) ... [2022-04-28 04:03:20,733 INFO L111 eAbstractionObserver]: Analyzing ICFG vnew1.c [2022-04-28 04:03:20,745 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-28 04:03:20,745 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-28 04:03:20,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-28 04:03:20,798 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@35d58a64, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@60b3bcbd [2022-04-28 04:03:20,798 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-28 04:03:20,805 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-28 04:03:20,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-28 04:03:20,811 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 04:03:20,811 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 04:03:20,812 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 04:03:20,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 04:03:20,816 INFO L85 PathProgramCache]: Analyzing trace with hash 486508050, now seen corresponding path program 1 times [2022-04-28 04:03:20,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-28 04:03:20,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1176066883] [2022-04-28 04:03:20,831 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-28 04:03:20,832 INFO L85 PathProgramCache]: Analyzing trace with hash 486508050, now seen corresponding path program 2 times [2022-04-28 04:03:20,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 04:03:20,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902809342] [2022-04-28 04:03:20,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 04:03:20,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 04:03:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 04:03:21,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-28 04:03:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 04:03:21,253 INFO L290 TraceCheckUtils]: 0: Hoare triple {34#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#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(8, 2);call #Ultimate.allocInit(12, 3);~SIZE~0 := 20000001; {26#true} is VALID [2022-04-28 04:03:21,253 INFO L290 TraceCheckUtils]: 1: Hoare triple {26#true} assume true; {26#true} is VALID [2022-04-28 04:03:21,254 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {26#true} {26#true} #63#return; {26#true} is VALID [2022-04-28 04:03:21,261 INFO L272 TraceCheckUtils]: 0: Hoare triple {26#true} call ULTIMATE.init(); {34#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-28 04:03:21,261 INFO L290 TraceCheckUtils]: 1: Hoare triple {34#(and (= |old(~SIZE~0)| ~SIZE~0) (= |#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(8, 2);call #Ultimate.allocInit(12, 3);~SIZE~0 := 20000001; {26#true} is VALID [2022-04-28 04:03:21,261 INFO L290 TraceCheckUtils]: 2: Hoare triple {26#true} assume true; {26#true} is VALID [2022-04-28 04:03:21,262 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {26#true} {26#true} #63#return; {26#true} is VALID [2022-04-28 04:03:21,262 INFO L272 TraceCheckUtils]: 4: Hoare triple {26#true} call #t~ret8 := main(); {26#true} is VALID [2022-04-28 04:03:21,262 INFO L290 TraceCheckUtils]: 5: Hoare triple {26#true} havoc ~n~0;havoc ~i~0;havoc ~k~0;~n~0 := #t~nondet4;havoc #t~nondet4; {26#true} is VALID [2022-04-28 04:03:21,263 INFO L290 TraceCheckUtils]: 6: Hoare triple {26#true} assume !!(~n~0 % 4294967296 <= ~SIZE~0 % 4294967296);~k~0 := ~n~0;~i~0 := 0; {31#(= main_~i~0 0)} is VALID [2022-04-28 04:03:21,264 INFO L290 TraceCheckUtils]: 7: Hoare triple {31#(= main_~i~0 0)} assume !(~i~0 % 4294967296 < ~n~0 % 4294967296); {32#(<= main_~n~0 (* (div main_~n~0 4294967296) 4294967296))} is VALID [2022-04-28 04:03:21,266 INFO L290 TraceCheckUtils]: 8: Hoare triple {32#(<= main_~n~0 (* (div main_~n~0 4294967296) 4294967296))} ~j~0 := 0; {33#(and (<= (+ (* (div main_~j~0 4294967296) 12884901888) main_~n~0) (+ (* (div main_~n~0 4294967296) 4294967296) (* (div (div (+ main_~n~0 (* (div main_~n~0 4294967296) (- 4294967296))) 3) 4294967296) 12884901888))) (= main_~j~0 0))} is VALID [2022-04-28 04:03:21,267 INFO L290 TraceCheckUtils]: 9: Hoare triple {33#(and (<= (+ (* (div main_~j~0 4294967296) 12884901888) main_~n~0) (+ (* (div main_~n~0 4294967296) 4294967296) (* (div (div (+ main_~n~0 (* (div main_~n~0 4294967296) (- 4294967296))) 3) 4294967296) 12884901888))) (= main_~j~0 0))} assume !!(~j~0 % 4294967296 < (if ~n~0 % 4294967296 < 0 && 0 != ~n~0 % 4294967296 % 3 then 1 + ~n~0 % 4294967296 / 3 else ~n~0 % 4294967296 / 3) % 4294967296); {27#false} is VALID [2022-04-28 04:03:21,268 INFO L272 TraceCheckUtils]: 10: Hoare triple {27#false} call __VERIFIER_assert((if ~k~0 % 4294967296 > 0 then 1 else 0)); {27#false} is VALID [2022-04-28 04:03:21,268 INFO L290 TraceCheckUtils]: 11: Hoare triple {27#false} ~cond := #in~cond; {27#false} is VALID [2022-04-28 04:03:21,268 INFO L290 TraceCheckUtils]: 12: Hoare triple {27#false} assume 0 == ~cond; {27#false} is VALID [2022-04-28 04:03:21,269 INFO L290 TraceCheckUtils]: 13: Hoare triple {27#false} assume !false; {27#false} is VALID [2022-04-28 04:03:21,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 04:03:21,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 04:03:21,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902809342] [2022-04-28 04:03:21,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902809342] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 04:03:21,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 04:03:21,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-28 04:03:21,274 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-28 04:03:21,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1176066883] [2022-04-28 04:03:21,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1176066883] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 04:03:21,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 04:03:21,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-28 04:03:21,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666506863] [2022-04-28 04:03:21,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 04:03:21,281 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-28 04:03:21,283 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 04:03:21,286 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 04:03:21,310 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 04:03:21,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-28 04:03:21,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-28 04:03:21,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-28 04:03:21,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-04-28 04:03:21,337 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 04:03:21,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 04:03:21,764 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2022-04-28 04:03:21,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-28 04:03:21,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-28 04:03:21,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 04:03:21,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 04:03:21,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 56 transitions. [2022-04-28 04:03:21,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 04:03:21,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 56 transitions. [2022-04-28 04:03:21,787 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 56 transitions. [2022-04-28 04:03:21,846 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 04:03:21,854 INFO L225 Difference]: With dead ends: 44 [2022-04-28 04:03:21,854 INFO L226 Difference]: Without dead ends: 19 [2022-04-28 04:03:21,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-04-28 04:03:21,860 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 29 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-28 04:03:21,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 42 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-28 04:03:21,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-04-28 04:03:21,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-04-28 04:03:21,886 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 04:03:21,887 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 04:03:21,888 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 04:03:21,888 INFO L87 Difference]: Start difference. First operand 19 states. Second operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 04:03:21,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 04:03:21,890 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-04-28 04:03:21,890 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-04-28 04:03:21,891 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 04:03:21,891 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 04:03:21,891 INFO L74 IsIncluded]: Start isIncluded. First operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 19 states. [2022-04-28 04:03:21,892 INFO L87 Difference]: Start difference. First operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 19 states. [2022-04-28 04:03:21,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 04:03:21,894 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-04-28 04:03:21,894 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-04-28 04:03:21,894 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 04:03:21,894 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 04:03:21,894 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 04:03:21,895 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 04:03:21,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 04:03:21,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-04-28 04:03:21,898 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2022-04-28 04:03:21,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 04:03:21,898 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-04-28 04:03:21,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 04:03:21,899 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 19 states and 20 transitions. [2022-04-28 04:03:21,920 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 04:03:21,920 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-04-28 04:03:21,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-04-28 04:03:21,921 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 04:03:21,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 04:03:21,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-28 04:03:21,922 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 04:03:21,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 04:03:21,922 INFO L85 PathProgramCache]: Analyzing trace with hash 77944193, now seen corresponding path program 1 times [2022-04-28 04:03:21,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-28 04:03:21,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2009713491] [2022-04-28 04:03:26,082 WARN L977 rdanLoopAcceleration]: Unable to prove correctness of quantifier elimination. [2022-04-28 04:03:26,533 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-04-28 04:03:26,536 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-04-28 04:03:26,541 INFO L85 PathProgramCache]: Analyzing trace with hash 735147586, now seen corresponding path program 1 times [2022-04-28 04:03:26,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 04:03:26,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971481543] [2022-04-28 04:03:26,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 04:03:26,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 04:03:26,569 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ main_~n~0_5 (* (- 4294967296) (div main_~n~0_5 4294967296)) (* (- 1) main_~i~0_6) (* (- 3) .v_it_1.0) (* 4294967296 (div (+ main_~i~0_6 (* 3 .v_it_1.0)) 4294967296))) 0)) [2022-04-28 04:03:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 04:03:26,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 04:03:26,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971481543] [2022-04-28 04:03:26,746 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Interpolation not supported for quantified formulae. [2022-04-28 04:03:26,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847828289] [2022-04-28 04:03:26,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 04:03:26,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 04:03:26,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 04:03:26,749 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) [2022-04-28 04:03:26,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process