/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/loop-acceleration/overflow_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-08 03:47:59,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-08 03:47:59,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-08 03:47:59,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-08 03:47:59,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-08 03:47:59,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-08 03:47:59,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-08 03:47:59,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-08 03:47:59,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-08 03:47:59,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-08 03:47:59,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-08 03:47:59,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-08 03:47:59,789 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-08 03:47:59,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-08 03:47:59,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-08 03:47:59,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-08 03:47:59,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-08 03:47:59,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-08 03:47:59,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-08 03:47:59,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-08 03:47:59,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-08 03:47:59,804 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-04-08 03:47:59,811 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-08 03:47:59,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-08 03:47:59,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-08 03:47:59,813 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-08 03:47:59,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-08 03:47:59,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-08 03:47:59,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-08 03:47:59,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-08 03:47:59,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-08 03:47:59,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-08 03:47:59,814 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-08 03:47:59,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-08 03:47:59,815 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-08 03:47:59,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-08 03:47:59,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-08 03:47:59,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-08 03:47:59,815 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-08 03:47:59,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-08 03:47:59,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-08 03:47:59,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-08 03:47:59,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-08 03:47:59,816 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-08 03:47:59,816 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-08 03:47:59,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-08 03:47:59,816 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-04-08 03:47:59,816 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-08 03:47:59,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-08 03:48:00,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-08 03:48:00,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-08 03:48:00,017 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-08 03:48:00,018 INFO L275 PluginConnector]: CDTParser initialized [2022-04-08 03:48:00,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/overflow_1-1.c [2022-04-08 03:48:00,066 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b56afd200/ce3d59bfde8c4394b87d188d0c213f6b/FLAG7bfa54c80 [2022-04-08 03:48:00,426 INFO L306 CDTParser]: Found 1 translation units. [2022-04-08 03:48:00,426 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/overflow_1-1.c [2022-04-08 03:48:00,431 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b56afd200/ce3d59bfde8c4394b87d188d0c213f6b/FLAG7bfa54c80 [2022-04-08 03:48:00,443 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b56afd200/ce3d59bfde8c4394b87d188d0c213f6b [2022-04-08 03:48:00,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-08 03:48:00,446 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-08 03:48:00,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-08 03:48:00,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-08 03:48:00,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-08 03:48:00,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 03:48:00" (1/1) ... [2022-04-08 03:48:00,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fd56d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:48:00, skipping insertion in model container [2022-04-08 03:48:00,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 03:48:00" (1/1) ... [2022-04-08 03:48:00,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-08 03:48:00,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-08 03:48:00,620 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/overflow_1-1.c[324,337] [2022-04-08 03:48:00,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-08 03:48:00,645 INFO L203 MainTranslator]: Completed pre-run [2022-04-08 03:48:00,654 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/overflow_1-1.c[324,337] [2022-04-08 03:48:00,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-08 03:48:00,666 INFO L208 MainTranslator]: Completed translation [2022-04-08 03:48:00,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:48:00 WrapperNode [2022-04-08 03:48:00,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-08 03:48:00,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-08 03:48:00,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-08 03:48:00,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-08 03:48:00,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:48:00" (1/1) ... [2022-04-08 03:48:00,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:48:00" (1/1) ... [2022-04-08 03:48:00,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:48:00" (1/1) ... [2022-04-08 03:48:00,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:48:00" (1/1) ... [2022-04-08 03:48:00,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:48:00" (1/1) ... [2022-04-08 03:48:00,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:48:00" (1/1) ... [2022-04-08 03:48:00,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:48:00" (1/1) ... [2022-04-08 03:48:00,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-08 03:48:00,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-08 03:48:00,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-08 03:48:00,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-08 03:48:00,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:48:00" (1/1) ... [2022-04-08 03:48:00,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-08 03:48:00,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 03:48:00,734 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 03:48:00,738 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 03:48:00,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-08 03:48:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-08 03:48:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-08 03:48:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-08 03:48:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-08 03:48:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-08 03:48:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-08 03:48:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-08 03:48:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-08 03:48:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-08 03:48:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-08 03:48:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-08 03:48:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-08 03:48:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-08 03:48:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-08 03:48:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-08 03:48:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-08 03:48:00,832 INFO L234 CfgBuilder]: Building ICFG [2022-04-08 03:48:00,833 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-08 03:48:00,940 INFO L275 CfgBuilder]: Performing block encoding [2022-04-08 03:48:00,944 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-08 03:48:00,944 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-08 03:48:00,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 03:48:00 BoogieIcfgContainer [2022-04-08 03:48:00,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-08 03:48:00,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-08 03:48:00,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-08 03:48:00,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-08 03:48:00,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.04 03:48:00" (1/3) ... [2022-04-08 03:48:00,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7c62c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 03:48:00, skipping insertion in model container [2022-04-08 03:48:00,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:48:00" (2/3) ... [2022-04-08 03:48:00,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7c62c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 03:48:00, skipping insertion in model container [2022-04-08 03:48:00,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 03:48:00" (3/3) ... [2022-04-08 03:48:00,971 INFO L111 eAbstractionObserver]: Analyzing ICFG overflow_1-1.c [2022-04-08 03:48:00,974 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-08 03:48:00,974 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-08 03:48:01,014 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-08 03:48:01,018 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 03:48:01,018 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-08 03:48:01,034 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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) [2022-04-08 03:48:01,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-08 03:48:01,038 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 03:48:01,039 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 03:48:01,039 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 03:48:01,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 03:48:01,043 INFO L85 PathProgramCache]: Analyzing trace with hash -219174432, now seen corresponding path program 1 times [2022-04-08 03:48:01,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 03:48:01,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [939379686] [2022-04-08 03:48:01,060 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 03:48:01,061 INFO L85 PathProgramCache]: Analyzing trace with hash -219174432, now seen corresponding path program 2 times [2022-04-08 03:48:01,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 03:48:01,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775109913] [2022-04-08 03:48:01,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 03:48:01,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 03:48:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:48:01,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 03:48:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:48:01,225 INFO L290 TraceCheckUtils]: 0: Hoare triple {26#(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(15, 2);call #Ultimate.allocInit(12, 3); {21#true} is VALID [2022-04-08 03:48:01,226 INFO L290 TraceCheckUtils]: 1: Hoare triple {21#true} assume true; {21#true} is VALID [2022-04-08 03:48:01,226 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {21#true} {21#true} #34#return; {21#true} is VALID [2022-04-08 03:48:01,228 INFO L272 TraceCheckUtils]: 0: Hoare triple {21#true} call ULTIMATE.init(); {26#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 03:48:01,228 INFO L290 TraceCheckUtils]: 1: Hoare triple {26#(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(15, 2);call #Ultimate.allocInit(12, 3); {21#true} is VALID [2022-04-08 03:48:01,228 INFO L290 TraceCheckUtils]: 2: Hoare triple {21#true} assume true; {21#true} is VALID [2022-04-08 03:48:01,228 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {21#true} {21#true} #34#return; {21#true} is VALID [2022-04-08 03:48:01,229 INFO L272 TraceCheckUtils]: 4: Hoare triple {21#true} call #t~ret4 := main(); {21#true} is VALID [2022-04-08 03:48:01,229 INFO L290 TraceCheckUtils]: 5: Hoare triple {21#true} ~x~0 := 10; {21#true} is VALID [2022-04-08 03:48:01,229 INFO L290 TraceCheckUtils]: 6: Hoare triple {21#true} assume !true; {22#false} is VALID [2022-04-08 03:48:01,230 INFO L272 TraceCheckUtils]: 7: Hoare triple {22#false} call __VERIFIER_assert((if 0 == (if ~x~0 % 4294967296 < 0 && 0 != ~x~0 % 4294967296 % 2 then ~x~0 % 4294967296 % 2 - 2 else ~x~0 % 4294967296 % 2) % 4294967296 then 1 else 0)); {22#false} is VALID [2022-04-08 03:48:01,230 INFO L290 TraceCheckUtils]: 8: Hoare triple {22#false} ~cond := #in~cond; {22#false} is VALID [2022-04-08 03:48:01,230 INFO L290 TraceCheckUtils]: 9: Hoare triple {22#false} assume 0 == ~cond; {22#false} is VALID [2022-04-08 03:48:01,230 INFO L290 TraceCheckUtils]: 10: Hoare triple {22#false} assume !false; {22#false} is VALID [2022-04-08 03:48:01,231 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 03:48:01,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 03:48:01,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775109913] [2022-04-08 03:48:01,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775109913] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 03:48:01,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 03:48:01,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-08 03:48:01,236 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 03:48:01,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [939379686] [2022-04-08 03:48:01,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [939379686] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 03:48:01,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 03:48:01,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-08 03:48:01,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39736122] [2022-04-08 03:48:01,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 03:48:01,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 11 [2022-04-08 03:48:01,241 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 03:48:01,243 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-04-08 03:48:01,261 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:48:01,261 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-08 03:48:01,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 03:48:01,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-08 03:48:01,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-08 03:48:01,282 INFO L87 Difference]: Start difference. First operand has 18 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-04-08 03:48:01,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:48:01,350 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-04-08 03:48:01,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-08 03:48:01,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 11 [2022-04-08 03:48:01,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 03:48:01,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-04-08 03:48:01,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2022-04-08 03:48:01,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-04-08 03:48:01,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2022-04-08 03:48:01,364 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 32 transitions. [2022-04-08 03:48:01,410 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:48:01,416 INFO L225 Difference]: With dead ends: 29 [2022-04-08 03:48:01,416 INFO L226 Difference]: Without dead ends: 12 [2022-04-08 03:48:01,418 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 03:48:01,420 INFO L913 BasicCegarLoop]: 17 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-08 03:48:01,422 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 20 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-08 03:48:01,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-04-08 03:48:01,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-04-08 03:48:01,441 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 03:48:01,441 INFO L82 GeneralOperation]: Start isEquivalent. First operand 12 states. Second operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 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) [2022-04-08 03:48:01,442 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 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) [2022-04-08 03:48:01,442 INFO L87 Difference]: Start difference. First operand 12 states. Second operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 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) [2022-04-08 03:48:01,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:48:01,443 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-04-08 03:48:01,443 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-04-08 03:48:01,444 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 03:48:01,444 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 03:48:01,444 INFO L74 IsIncluded]: Start isIncluded. First operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 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) Second operand 12 states. [2022-04-08 03:48:01,444 INFO L87 Difference]: Start difference. First operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 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) Second operand 12 states. [2022-04-08 03:48:01,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:48:01,445 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-04-08 03:48:01,445 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-04-08 03:48:01,446 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 03:48:01,446 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 03:48:01,446 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 03:48:01,446 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 03:48:01,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 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) [2022-04-08 03:48:01,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-04-08 03:48:01,448 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 11 [2022-04-08 03:48:01,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 03:48:01,448 INFO L478 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-04-08 03:48:01,448 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-04-08 03:48:01,448 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 12 states and 12 transitions. [2022-04-08 03:48:01,469 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:48:01,469 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-04-08 03:48:01,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-08 03:48:01,470 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 03:48:01,470 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 03:48:01,470 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-08 03:48:01,470 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 03:48:01,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 03:48:01,471 INFO L85 PathProgramCache]: Analyzing trace with hash -222868516, now seen corresponding path program 1 times [2022-04-08 03:48:01,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 03:48:01,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1211160546] [2022-04-08 03:48:01,472 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 03:48:01,472 INFO L85 PathProgramCache]: Analyzing trace with hash -222868516, now seen corresponding path program 2 times [2022-04-08 03:48:01,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 03:48:01,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290169540] [2022-04-08 03:48:01,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 03:48:01,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 03:48:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:48:01,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 03:48:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:48:01,576 INFO L290 TraceCheckUtils]: 0: Hoare triple {141#(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(15, 2);call #Ultimate.allocInit(12, 3); {135#true} is VALID [2022-04-08 03:48:01,577 INFO L290 TraceCheckUtils]: 1: Hoare triple {135#true} assume true; {135#true} is VALID [2022-04-08 03:48:01,577 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {135#true} {135#true} #34#return; {135#true} is VALID [2022-04-08 03:48:01,577 INFO L272 TraceCheckUtils]: 0: Hoare triple {135#true} call ULTIMATE.init(); {141#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 03:48:01,579 INFO L290 TraceCheckUtils]: 1: Hoare triple {141#(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(15, 2);call #Ultimate.allocInit(12, 3); {135#true} is VALID [2022-04-08 03:48:01,579 INFO L290 TraceCheckUtils]: 2: Hoare triple {135#true} assume true; {135#true} is VALID [2022-04-08 03:48:01,579 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {135#true} {135#true} #34#return; {135#true} is VALID [2022-04-08 03:48:01,579 INFO L272 TraceCheckUtils]: 4: Hoare triple {135#true} call #t~ret4 := main(); {135#true} is VALID [2022-04-08 03:48:01,580 INFO L290 TraceCheckUtils]: 5: Hoare triple {135#true} ~x~0 := 10; {140#(and (<= (div main_~x~0 4294967296) 0) (<= 10 main_~x~0))} is VALID [2022-04-08 03:48:01,581 INFO L290 TraceCheckUtils]: 6: Hoare triple {140#(and (<= (div main_~x~0 4294967296) 0) (<= 10 main_~x~0))} assume !(~x~0 % 4294967296 >= 10); {136#false} is VALID [2022-04-08 03:48:01,581 INFO L272 TraceCheckUtils]: 7: Hoare triple {136#false} call __VERIFIER_assert((if 0 == (if ~x~0 % 4294967296 < 0 && 0 != ~x~0 % 4294967296 % 2 then ~x~0 % 4294967296 % 2 - 2 else ~x~0 % 4294967296 % 2) % 4294967296 then 1 else 0)); {136#false} is VALID [2022-04-08 03:48:01,582 INFO L290 TraceCheckUtils]: 8: Hoare triple {136#false} ~cond := #in~cond; {136#false} is VALID [2022-04-08 03:48:01,582 INFO L290 TraceCheckUtils]: 9: Hoare triple {136#false} assume 0 == ~cond; {136#false} is VALID [2022-04-08 03:48:01,582 INFO L290 TraceCheckUtils]: 10: Hoare triple {136#false} assume !false; {136#false} is VALID [2022-04-08 03:48:01,582 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 03:48:01,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 03:48:01,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290169540] [2022-04-08 03:48:01,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290169540] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 03:48:01,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 03:48:01,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-08 03:48:01,586 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 03:48:01,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1211160546] [2022-04-08 03:48:01,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1211160546] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 03:48:01,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 03:48:01,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-08 03:48:01,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272044244] [2022-04-08 03:48:01,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 03:48:01,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 11 [2022-04-08 03:48:01,588 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 03:48:01,588 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-04-08 03:48:01,598 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:48:01,598 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-08 03:48:01,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 03:48:01,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-08 03:48:01,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-08 03:48:01,600 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-04-08 03:48:01,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:48:01,662 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-04-08 03:48:01,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-08 03:48:01,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 11 [2022-04-08 03:48:01,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 03:48:01,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-04-08 03:48:01,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-04-08 03:48:01,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-04-08 03:48:01,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-04-08 03:48:01,665 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 18 transitions. [2022-04-08 03:48:01,694 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:48:01,695 INFO L225 Difference]: With dead ends: 18 [2022-04-08 03:48:01,695 INFO L226 Difference]: Without dead ends: 13 [2022-04-08 03:48:01,695 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-08 03:48:01,696 INFO L913 BasicCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-08 03:48:01,696 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 18 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-08 03:48:01,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-04-08 03:48:01,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-04-08 03:48:01,702 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 03:48:01,702 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 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) [2022-04-08 03:48:01,702 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 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) [2022-04-08 03:48:01,703 INFO L87 Difference]: Start difference. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 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) [2022-04-08 03:48:01,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:48:01,704 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-08 03:48:01,704 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-08 03:48:01,704 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 03:48:01,704 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 03:48:01,704 INFO L74 IsIncluded]: Start isIncluded. First operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 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) Second operand 13 states. [2022-04-08 03:48:01,704 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 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) Second operand 13 states. [2022-04-08 03:48:01,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:48:01,705 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-08 03:48:01,705 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-08 03:48:01,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 03:48:01,706 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 03:48:01,706 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 03:48:01,706 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 03:48:01,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 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) [2022-04-08 03:48:01,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-04-08 03:48:01,707 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2022-04-08 03:48:01,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 03:48:01,707 INFO L478 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-04-08 03:48:01,707 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-04-08 03:48:01,707 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 13 states and 13 transitions. [2022-04-08 03:48:01,718 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:48:01,718 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-08 03:48:01,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-08 03:48:01,718 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 03:48:01,719 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 03:48:01,719 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-08 03:48:01,719 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 03:48:01,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 03:48:01,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1717471862, now seen corresponding path program 1 times [2022-04-08 03:48:01,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 03:48:01,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1987421014] [2022-04-08 03:48:03,907 WARN L977 rdanLoopAcceleration]: Unable to prove correctness of quantifier elimination. [2022-04-08 03:48:04,030 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-04-08 03:48:04,034 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-04-08 03:48:04,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1867307785, now seen corresponding path program 1 times [2022-04-08 03:48:04,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 03:48:04,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307989140] [2022-04-08 03:48:04,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 03:48:04,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 03:48:04,049 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 2) .v_it_1.0) (* (- 1) main_~x~0_5) (* 4294967296 (div (+ (* 2 .v_it_1.0) main_~x~0_5) 4294967296)) 10) 0) [2022-04-08 03:48:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:48:04,075 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 2) .v_it_1.1) (* (- 1) main_~x~0_5) (* 4294967296 (div (+ (* 2 .v_it_1.1) main_~x~0_5) 4294967296)) 10) 0) [2022-04-08 03:48:04,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 03:48:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:48:04,194 INFO L290 TraceCheckUtils]: 0: Hoare triple {244#(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(15, 2);call #Ultimate.allocInit(12, 3); {234#true} is VALID [2022-04-08 03:48:04,194 INFO L290 TraceCheckUtils]: 1: Hoare triple {234#true} assume true; {234#true} is VALID [2022-04-08 03:48:04,194 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {234#true} {234#true} #34#return; {234#true} is VALID [2022-04-08 03:48:04,195 INFO L272 TraceCheckUtils]: 0: Hoare triple {234#true} call ULTIMATE.init(); {244#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 03:48:04,195 INFO L290 TraceCheckUtils]: 1: Hoare triple {244#(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(15, 2);call #Ultimate.allocInit(12, 3); {234#true} is VALID [2022-04-08 03:48:04,195 INFO L290 TraceCheckUtils]: 2: Hoare triple {234#true} assume true; {234#true} is VALID [2022-04-08 03:48:04,195 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {234#true} {234#true} #34#return; {234#true} is VALID [2022-04-08 03:48:04,196 INFO L272 TraceCheckUtils]: 4: Hoare triple {234#true} call #t~ret4 := main(); {234#true} is VALID [2022-04-08 03:48:04,196 INFO L290 TraceCheckUtils]: 5: Hoare triple {234#true} ~x~0 := 10; {239#(and (<= main_~x~0 10) (<= 10 main_~x~0))} is VALID [2022-04-08 03:48:04,199 INFO L290 TraceCheckUtils]: 6: Hoare triple {239#(and (<= main_~x~0 10) (<= 10 main_~x~0))} [40] L15-2-->L15-3_primed: Formula: (let ((.cse0 (= v_main_~x~0_8 v_main_~x~0_7)) (.cse1 (mod v_main_~x~0_8 4294967296))) (or .cse0 (and .cse0 (< .cse1 10)) (and (< 0 (div (+ v_main_~x~0_8 (* (- 1) v_main_~x~0_7)) (- 2))) (= (mod (+ v_main_~x~0_8 v_main_~x~0_7) 2) 0) (<= 10 .cse1) (forall ((v_it_1 Int)) (or (not (<= (+ v_it_1 1) (div (+ v_main_~x~0_8 (* (- 1) v_main_~x~0_7)) (- 2)))) (<= 10 (mod (+ (* v_it_1 2) v_main_~x~0_8) 4294967296)) (not (<= 1 v_it_1))))))) InVars {main_~x~0=v_main_~x~0_8} OutVars{main_~x~0=v_main_~x~0_7} AuxVars[] AssignedVars[main_~x~0] {240#(or (<= main_~x~0 (* (div main_~x~0 2) 2)) (and (<= (div main_~x~0 4294967296) 0) (<= 10 main_~x~0)))} is VALID [2022-04-08 03:48:04,200 INFO L290 TraceCheckUtils]: 7: Hoare triple {240#(or (<= main_~x~0 (* (div main_~x~0 2) 2)) (and (<= (div main_~x~0 4294967296) 0) (<= 10 main_~x~0)))} [39] L15-3_primed-->L15-3: Formula: (not (<= 10 (mod v_main_~x~0_5 4294967296))) InVars {main_~x~0=v_main_~x~0_5} OutVars{main_~x~0=v_main_~x~0_5} AuxVars[] AssignedVars[] {241#(<= main_~x~0 (* (div main_~x~0 2) 2))} is VALID [2022-04-08 03:48:04,201 INFO L272 TraceCheckUtils]: 8: Hoare triple {241#(<= main_~x~0 (* (div main_~x~0 2) 2))} call __VERIFIER_assert((if 0 == (if ~x~0 % 4294967296 < 0 && 0 != ~x~0 % 4294967296 % 2 then ~x~0 % 4294967296 % 2 - 2 else ~x~0 % 4294967296 % 2) % 4294967296 then 1 else 0)); {242#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 03:48:04,201 INFO L290 TraceCheckUtils]: 9: Hoare triple {242#(not (= |__VERIFIER_assert_#in~cond| 0))} ~cond := #in~cond; {243#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-08 03:48:04,202 INFO L290 TraceCheckUtils]: 10: Hoare triple {243#(not (= __VERIFIER_assert_~cond 0))} assume 0 == ~cond; {235#false} is VALID [2022-04-08 03:48:04,202 INFO L290 TraceCheckUtils]: 11: Hoare triple {235#false} assume !false; {235#false} is VALID [2022-04-08 03:48:04,202 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 03:48:04,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 03:48:04,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307989140] [2022-04-08 03:48:04,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307989140] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 03:48:04,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 03:48:04,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-08 03:48:04,506 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 03:48:04,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1987421014] [2022-04-08 03:48:04,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1987421014] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 03:48:04,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 03:48:04,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-08 03:48:04,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151674051] [2022-04-08 03:48:04,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 03:48:04,507 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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 12 [2022-04-08 03:48:04,507 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 03:48:04,508 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-04-08 03:48:04,528 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:48:04,529 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-08 03:48:04,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 03:48:04,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-08 03:48:04,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-04-08 03:48:04,530 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-04-08 03:48:04,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:48:04,602 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-08 03:48:04,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-08 03:48:04,602 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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 12 [2022-04-08 03:48:04,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 03:48:04,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-04-08 03:48:04,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 13 transitions. [2022-04-08 03:48:04,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-04-08 03:48:04,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 13 transitions. [2022-04-08 03:48:04,604 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 8 states and 13 transitions. [2022-04-08 03:48:06,679 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 12 inductive. 0 not inductive. 1 times theorem prover too weak to decide inductivity. [2022-04-08 03:48:06,680 INFO L225 Difference]: With dead ends: 13 [2022-04-08 03:48:06,680 INFO L226 Difference]: Without dead ends: 0 [2022-04-08 03:48:06,681 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-04-08 03:48:06,682 INFO L913 BasicCegarLoop]: 7 mSDtfsCounter, 3 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-08 03:48:06,683 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 24 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2022-04-08 03:48:06,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-08 03:48:06,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-08 03:48:06,684 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 03:48:06,684 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-08 03:48:06,684 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-08 03:48:06,684 INFO L87 Difference]: Start difference. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-08 03:48:06,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:48:06,685 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-08 03:48:06,685 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-08 03:48:06,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 03:48:06,685 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 03:48:06,685 INFO L74 IsIncluded]: Start isIncluded. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-04-08 03:48:06,685 INFO L87 Difference]: Start difference. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-04-08 03:48:06,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:48:06,685 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-08 03:48:06,685 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-08 03:48:06,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 03:48:06,686 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 03:48:06,686 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 03:48:06,686 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 03:48:06,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-08 03:48:06,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-08 03:48:06,686 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-04-08 03:48:06,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 03:48:06,686 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-08 03:48:06,687 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-04-08 03:48:06,687 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2022-04-08 03:48:06,687 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:48:06,687 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-08 03:48:06,687 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 03:48:06,689 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-08 03:48:06,690 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-08 03:48:06,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-08 03:48:06,935 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2022-04-08 03:48:06,935 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2022-04-08 03:48:06,935 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2022-04-08 03:48:06,936 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2022-04-08 03:48:06,936 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-04-08 03:48:06,936 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2022-04-08 03:48:06,936 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-04-08 03:48:06,936 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-04-08 03:48:06,936 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-08 03:48:06,936 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-04-08 03:48:06,936 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 12 20) the Hoare annotation is: true [2022-04-08 03:48:06,936 INFO L885 garLoopResultBuilder]: At program point mainEXIT(lines 12 20) the Hoare annotation is: true [2022-04-08 03:48:06,936 INFO L878 garLoopResultBuilder]: At program point L15-2(lines 15 17) the Hoare annotation is: (exists ((v_main_~x~0_12 Int)) (and (or (and (<= 10 (mod v_main_~x~0_12 4294967296)) (forall ((v_it_1 Int)) (or (<= 10 (mod (+ (* v_it_1 2) v_main_~x~0_12) 4294967296)) (not (<= 1 v_it_1)) (not (<= (+ v_it_1 1) (div (+ v_main_~x~0_12 (* (- 1) main_~x~0)) (- 2)))))) (= (mod (+ v_main_~x~0_12 main_~x~0) 2) 0) (< 0 (div (+ v_main_~x~0_12 (* (- 1) main_~x~0)) (- 2)))) (= v_main_~x~0_12 main_~x~0)) (<= 10 v_main_~x~0_12) (<= v_main_~x~0_12 10))) [2022-04-08 03:48:06,936 INFO L885 garLoopResultBuilder]: At program point mainFINAL(lines 12 20) the Hoare annotation is: true [2022-04-08 03:48:06,937 INFO L878 garLoopResultBuilder]: At program point L15-3(lines 15 17) the Hoare annotation is: (<= main_~x~0 (* (div main_~x~0 2) 2)) [2022-04-08 03:48:06,937 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2022-04-08 03:48:06,937 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 5 10) the Hoare annotation is: true [2022-04-08 03:48:06,937 INFO L878 garLoopResultBuilder]: At program point L7(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-04-08 03:48:06,937 INFO L878 garLoopResultBuilder]: At program point L6(lines 6 8) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-04-08 03:48:06,937 INFO L885 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: true [2022-04-08 03:48:06,937 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-04-08 03:48:06,939 INFO L719 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2022-04-08 03:48:06,940 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-08 03:48:06,942 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-08 03:48:06,945 WARN L170 areAnnotationChecker]: reach_errorFINAL has no Hoare annotation [2022-04-08 03:48:06,966 INFO L163 areAnnotationChecker]: CFG has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-08 03:48:06,970 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,970 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-04-08 03:48:06,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-04-08 03:48:06,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-04-08 03:48:06,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,973 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,973 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-04-08 03:48:06,973 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-04-08 03:48:06,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-04-08 03:48:06,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.04 03:48:06 BoogieIcfgContainer [2022-04-08 03:48:06,975 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-08 03:48:06,976 INFO L158 Benchmark]: Toolchain (without parser) took 6529.59ms. Allocated memory was 191.9MB in the beginning and 240.1MB in the end (delta: 48.2MB). Free memory was 144.0MB in the beginning and 142.9MB in the end (delta: 1.2MB). Peak memory consumption was 49.8MB. Max. memory is 8.0GB. [2022-04-08 03:48:06,976 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 191.9MB. Free memory was 160.2MB in the beginning and 160.1MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-08 03:48:06,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.69ms. Allocated memory is still 191.9MB. Free memory was 143.7MB in the beginning and 168.7MB in the end (delta: -24.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-08 03:48:06,977 INFO L158 Benchmark]: Boogie Preprocessor took 26.35ms. Allocated memory is still 191.9MB. Free memory was 168.7MB in the beginning and 167.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-08 03:48:06,977 INFO L158 Benchmark]: RCFGBuilder took 250.73ms. Allocated memory is still 191.9MB. Free memory was 167.4MB in the beginning and 157.5MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-04-08 03:48:06,977 INFO L158 Benchmark]: TraceAbstraction took 6028.88ms. Allocated memory was 191.9MB in the beginning and 240.1MB in the end (delta: 48.2MB). Free memory was 157.1MB in the beginning and 142.9MB in the end (delta: 14.3MB). Peak memory consumption was 63.9MB. Max. memory is 8.0GB. [2022-04-08 03:48:06,978 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 0.10ms. Allocated memory is still 191.9MB. Free memory was 160.2MB in the beginning and 160.1MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 218.69ms. Allocated memory is still 191.9MB. Free memory was 143.7MB in the beginning and 168.7MB in the end (delta: -24.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.35ms. Allocated memory is still 191.9MB. Free memory was 168.7MB in the beginning and 167.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 250.73ms. Allocated memory is still 191.9MB. Free memory was 167.4MB in the beginning and 157.5MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 6028.88ms. Allocated memory was 191.9MB in the beginning and 240.1MB in the end (delta: 48.2MB). Free memory was 157.1MB in the beginning and 142.9MB in the end (delta: 14.3MB). Peak memory consumption was 63.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] * 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 - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 4 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 35 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 30 PreInvPairs, 40 NumberOfFragments, 101 HoareAnnotationTreeSize, 30 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 88 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant [2022-04-08 03:48:06,983 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,983 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-04-08 03:48:06,983 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,983 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-04-08 03:48:06,984 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-04-08 03:48:06,984 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,984 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,984 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,984 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,984 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,984 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,984 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,984 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-04-08 03:48:06,984 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,984 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-04-08 03:48:06,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-04-08 03:48:06,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] [2022-04-08 03:48:06,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_12,QUANTIFIED] Derived loop invariant: (\exists v_main_~x~0_12 : int :: (((((10 <= v_main_~x~0_12 % 4294967296 && (forall v_it_1 : int :: (10 <= (v_it_1 * 2 + v_main_~x~0_12) % 4294967296 || !(1 <= v_it_1)) || !(v_it_1 + 1 <= (v_main_~x~0_12 + -1 * x) / -2))) && (v_main_~x~0_12 + x) % 2 == 0) && 0 < (v_main_~x~0_12 + -1 * x) / -2) || v_main_~x~0_12 == x) && 10 <= v_main_~x~0_12) && v_main_~x~0_12 <= 10) - ProcedureContractResult [Line: 12]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 5]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 RESULT: Ultimate proved your program to be correct! [2022-04-08 03:48:06,997 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...