/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-invariants/mod4.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-27 17:03:01,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-27 17:03:01,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-27 17:03:01,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-27 17:03:01,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-27 17:03:01,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-27 17:03:01,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-27 17:03:01,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-27 17:03:01,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-27 17:03:01,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-27 17:03:01,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-27 17:03:01,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-27 17:03:01,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-27 17:03:01,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-27 17:03:01,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-27 17:03:01,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-27 17:03:01,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-27 17:03:01,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-27 17:03:01,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-27 17:03:01,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-27 17:03:01,562 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-27 17:03:01,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-27 17:03:01,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-27 17:03:01,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-27 17:03:01,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-27 17:03:01,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-27 17:03:01,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-27 17:03:01,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-27 17:03:01,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-27 17:03:01,590 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-27 17:03:01,599 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-27 17:03:01,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-27 17:03:01,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-27 17:03:01,601 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-27 17:03:01,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-27 17:03:01,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-27 17:03:01,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-27 17:03:01,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-27 17:03:01,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-27 17:03:01,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-27 17:03:01,602 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-27 17:03:01,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-27 17:03:01,602 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-27 17:03:01,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-27 17:03:01,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-27 17:03:01,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-27 17:03:01,603 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-27 17:03:01,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-27 17:03:01,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 17:03:01,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-27 17:03:01,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-27 17:03:01,604 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-27 17:03:01,604 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-27 17:03:01,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-27 17:03:01,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-27 17:03:01,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-27 17:03:01,831 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-27 17:03:01,832 INFO L275 PluginConnector]: CDTParser initialized [2022-04-27 17:03:01,832 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/mod4.c [2022-04-27 17:03:01,903 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a586be6e1/0ea628456f6641e298e8d20b199b3df1/FLAG88838fa87 [2022-04-27 17:03:02,263 INFO L306 CDTParser]: Found 1 translation units. [2022-04-27 17:03:02,263 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/mod4.c [2022-04-27 17:03:02,276 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a586be6e1/0ea628456f6641e298e8d20b199b3df1/FLAG88838fa87 [2022-04-27 17:03:02,690 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a586be6e1/0ea628456f6641e298e8d20b199b3df1 [2022-04-27 17:03:02,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-27 17:03:02,708 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-27 17:03:02,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-27 17:03:02,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-27 17:03:02,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-27 17:03:02,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 05:03:02" (1/1) ... [2022-04-27 17:03:02,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e40254a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:03:02, skipping insertion in model container [2022-04-27 17:03:02,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 05:03:02" (1/1) ... [2022-04-27 17:03:02,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-27 17:03:02,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-27 17:03:02,830 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-invariants/mod4.c[351,364] [2022-04-27 17:03:02,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 17:03:02,840 INFO L203 MainTranslator]: Completed pre-run [2022-04-27 17:03:02,847 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-invariants/mod4.c[351,364] [2022-04-27 17:03:02,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 17:03:02,857 INFO L208 MainTranslator]: Completed translation [2022-04-27 17:03:02,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:03:02 WrapperNode [2022-04-27 17:03:02,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-27 17:03:02,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-27 17:03:02,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-27 17:03:02,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-27 17:03:02,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:03:02" (1/1) ... [2022-04-27 17:03:02,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:03:02" (1/1) ... [2022-04-27 17:03:02,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:03:02" (1/1) ... [2022-04-27 17:03:02,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:03:02" (1/1) ... [2022-04-27 17:03:02,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:03:02" (1/1) ... [2022-04-27 17:03:02,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:03:02" (1/1) ... [2022-04-27 17:03:02,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:03:02" (1/1) ... [2022-04-27 17:03:02,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-27 17:03:02,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-27 17:03:02,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-27 17:03:02,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-27 17:03:02,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:03:02" (1/1) ... [2022-04-27 17:03:02,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 17:03:02,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 17:03:02,913 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) [2022-04-27 17:03:02,915 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 [2022-04-27 17:03:02,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-27 17:03:02,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-27 17:03:02,945 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-27 17:03:02,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-27 17:03:02,945 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-27 17:03:02,945 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-27 17:03:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-27 17:03:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-27 17:03:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-27 17:03:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-27 17:03:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-27 17:03:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-27 17:03:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-27 17:03:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-27 17:03:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-27 17:03:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-27 17:03:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-27 17:03:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-27 17:03:02,988 INFO L234 CfgBuilder]: Building ICFG [2022-04-27 17:03:02,990 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-27 17:03:03,076 INFO L275 CfgBuilder]: Performing block encoding [2022-04-27 17:03:03,081 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-27 17:03:03,081 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-27 17:03:03,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 05:03:03 BoogieIcfgContainer [2022-04-27 17:03:03,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-27 17:03:03,083 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-27 17:03:03,083 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-27 17:03:03,084 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-27 17:03:03,086 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 05:03:03" (1/1) ... [2022-04-27 17:03:03,087 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-27 17:03:03,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 27.04 05:03:03 BasicIcfg [2022-04-27 17:03:03,099 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-27 17:03:03,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-27 17:03:03,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-27 17:03:03,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-27 17:03:03,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.04 05:03:02" (1/4) ... [2022-04-27 17:03:03,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cdba626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 05:03:03, skipping insertion in model container [2022-04-27 17:03:03,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:03:02" (2/4) ... [2022-04-27 17:03:03,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cdba626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 05:03:03, skipping insertion in model container [2022-04-27 17:03:03,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 05:03:03" (3/4) ... [2022-04-27 17:03:03,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cdba626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 05:03:03, skipping insertion in model container [2022-04-27 17:03:03,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 27.04 05:03:03" (4/4) ... [2022-04-27 17:03:03,105 INFO L111 eAbstractionObserver]: Analyzing ICFG mod4.cJordan [2022-04-27 17:03:03,115 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-27 17:03:03,115 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-27 17:03:03,143 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-27 17:03:03,148 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@53e5d003, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@16a9912b [2022-04-27 17:03:03,148 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-27 17:03:03,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 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) [2022-04-27 17:03:03,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-27 17:03:03,166 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 17:03:03,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 17:03:03,167 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 17:03:03,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 17:03:03,171 INFO L85 PathProgramCache]: Analyzing trace with hash -487068095, now seen corresponding path program 1 times [2022-04-27 17:03:03,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 17:03:03,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195018008] [2022-04-27 17:03:03,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 17:03:03,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 17:03:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 17:03:03,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-27 17:03:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 17:03:03,309 INFO L290 TraceCheckUtils]: 0: Hoare triple {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [43] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1)) (.cse1 (select |v_#memory_int_1| 2))) (and (= 48 (select .cse0 0)) (= 111 (select .cse1 1)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select .cse1 6) 0) (= (select .cse1 2) 100) (< 0 |v_#StackHeapBarrier_1|) (= (select .cse1 3) 52) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= 109 (select .cse1 0)) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0) (= 99 (select .cse1 5)) (= 7 (select |v_#length_1| 2)) (= (select .cse1 4) 46))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {23#true} is VALID [2022-04-27 17:03:03,309 INFO L290 TraceCheckUtils]: 1: Hoare triple {23#true} [46] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-27 17:03:03,310 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {23#true} {23#true} [60] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-27 17:03:03,311 INFO L272 TraceCheckUtils]: 0: Hoare triple {23#true} [41] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-27 17:03:03,312 INFO L290 TraceCheckUtils]: 1: Hoare triple {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [43] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1)) (.cse1 (select |v_#memory_int_1| 2))) (and (= 48 (select .cse0 0)) (= 111 (select .cse1 1)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select .cse1 6) 0) (= (select .cse1 2) 100) (< 0 |v_#StackHeapBarrier_1|) (= (select .cse1 3) 52) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= 109 (select .cse1 0)) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0) (= 99 (select .cse1 5)) (= 7 (select |v_#length_1| 2)) (= (select .cse1 4) 46))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {23#true} is VALID [2022-04-27 17:03:03,312 INFO L290 TraceCheckUtils]: 2: Hoare triple {23#true} [46] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-27 17:03:03,312 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {23#true} {23#true} [60] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-27 17:03:03,312 INFO L272 TraceCheckUtils]: 4: Hoare triple {23#true} [42] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-27 17:03:03,313 INFO L290 TraceCheckUtils]: 5: Hoare triple {23#true} [45] mainENTRY-->L13-3: Formula: (= v_main_~x~0_2 0) InVars {} OutVars{main_~x~0=v_main_~x~0_2} AuxVars[] AssignedVars[main_~x~0] {23#true} is VALID [2022-04-27 17:03:03,313 INFO L290 TraceCheckUtils]: 6: Hoare triple {23#true} [47] L13-3-->L13-4: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {24#false} is VALID [2022-04-27 17:03:03,313 INFO L272 TraceCheckUtils]: 7: Hoare triple {24#false} [49] L13-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (mod v_main_~x~0_5 4) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0] {24#false} is VALID [2022-04-27 17:03:03,314 INFO L290 TraceCheckUtils]: 8: Hoare triple {24#false} [53] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {24#false} is VALID [2022-04-27 17:03:03,314 INFO L290 TraceCheckUtils]: 9: Hoare triple {24#false} [55] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {24#false} is VALID [2022-04-27 17:03:03,314 INFO L290 TraceCheckUtils]: 10: Hoare triple {24#false} [57] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#false} is VALID [2022-04-27 17:03:03,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-27 17:03:03,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 17:03:03,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195018008] [2022-04-27 17:03:03,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195018008] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 17:03:03,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 17:03:03,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-27 17:03:03,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169914983] [2022-04-27 17:03:03,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 17:03:03,321 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 [2022-04-27 17:03:03,322 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 17:03:03,324 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) [2022-04-27 17:03:03,338 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 17:03:03,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-27 17:03:03,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 17:03:03,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-27 17:03:03,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-27 17:03:03,353 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 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) [2022-04-27 17:03:03,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 17:03:03,396 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2022-04-27 17:03:03,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-27 17:03:03,397 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 [2022-04-27 17:03:03,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 17:03:03,398 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) [2022-04-27 17:03:03,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2022-04-27 17:03:03,404 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) [2022-04-27 17:03:03,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2022-04-27 17:03:03,406 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 22 transitions. [2022-04-27 17:03:03,429 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 17:03:03,435 INFO L225 Difference]: With dead ends: 20 [2022-04-27 17:03:03,435 INFO L226 Difference]: Without dead ends: 13 [2022-04-27 17:03:03,436 INFO L412 NwaCegarLoop]: 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 [2022-04-27 17:03:03,439 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 11 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 22 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 [2022-04-27 17:03:03,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 22 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 17:03:03,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-04-27 17:03:03,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-04-27 17:03:03,457 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 17:03:03,458 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) [2022-04-27 17:03:03,458 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) [2022-04-27 17:03:03,458 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) [2022-04-27 17:03:03,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 17:03:03,460 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-27 17:03:03,460 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-27 17:03:03,461 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 17:03:03,461 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 17:03:03,461 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. [2022-04-27 17:03:03,461 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. [2022-04-27 17:03:03,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 17:03:03,463 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-27 17:03:03,463 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-27 17:03:03,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 17:03:03,464 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 17:03:03,464 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 17:03:03,464 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 17:03:03,464 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) [2022-04-27 17:03:03,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-04-27 17:03:03,466 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2022-04-27 17:03:03,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 17:03:03,466 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-04-27 17:03:03,466 INFO L496 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) [2022-04-27 17:03:03,466 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-27 17:03:03,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-27 17:03:03,467 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 17:03:03,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 17:03:03,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-27 17:03:03,467 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 17:03:03,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 17:03:03,468 INFO L85 PathProgramCache]: Analyzing trace with hash 2110189820, now seen corresponding path program 1 times [2022-04-27 17:03:03,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 17:03:03,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110182740] [2022-04-27 17:03:03,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 17:03:03,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 17:03:03,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 17:03:03,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-27 17:03:03,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 17:03:03,538 INFO L290 TraceCheckUtils]: 0: Hoare triple {98#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [43] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1)) (.cse1 (select |v_#memory_int_1| 2))) (and (= 48 (select .cse0 0)) (= 111 (select .cse1 1)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select .cse1 6) 0) (= (select .cse1 2) 100) (< 0 |v_#StackHeapBarrier_1|) (= (select .cse1 3) 52) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= 109 (select .cse1 0)) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0) (= 99 (select .cse1 5)) (= 7 (select |v_#length_1| 2)) (= (select .cse1 4) 46))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {90#true} is VALID [2022-04-27 17:03:03,539 INFO L290 TraceCheckUtils]: 1: Hoare triple {90#true} [46] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {90#true} is VALID [2022-04-27 17:03:03,539 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {90#true} {90#true} [60] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {90#true} is VALID [2022-04-27 17:03:03,540 INFO L272 TraceCheckUtils]: 0: Hoare triple {90#true} [41] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {98#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-27 17:03:03,540 INFO L290 TraceCheckUtils]: 1: Hoare triple {98#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [43] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1)) (.cse1 (select |v_#memory_int_1| 2))) (and (= 48 (select .cse0 0)) (= 111 (select .cse1 1)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select .cse1 6) 0) (= (select .cse1 2) 100) (< 0 |v_#StackHeapBarrier_1|) (= (select .cse1 3) 52) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= 109 (select .cse1 0)) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0) (= 99 (select .cse1 5)) (= 7 (select |v_#length_1| 2)) (= (select .cse1 4) 46))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {90#true} is VALID [2022-04-27 17:03:03,540 INFO L290 TraceCheckUtils]: 2: Hoare triple {90#true} [46] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {90#true} is VALID [2022-04-27 17:03:03,540 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {90#true} {90#true} [60] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {90#true} is VALID [2022-04-27 17:03:03,541 INFO L272 TraceCheckUtils]: 4: Hoare triple {90#true} [42] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {90#true} is VALID [2022-04-27 17:03:03,541 INFO L290 TraceCheckUtils]: 5: Hoare triple {90#true} [45] mainENTRY-->L13-3: Formula: (= v_main_~x~0_2 0) InVars {} OutVars{main_~x~0=v_main_~x~0_2} AuxVars[] AssignedVars[main_~x~0] {95#(= main_~x~0 0)} is VALID [2022-04-27 17:03:03,541 INFO L290 TraceCheckUtils]: 6: Hoare triple {95#(= main_~x~0 0)} [48] L13-3-->L13-1: Formula: (and (<= |v_main_#t~nondet4_1| 2147483647) (<= 0 (+ |v_main_#t~nondet4_1| 2147483648))) InVars {main_#t~nondet4=|v_main_#t~nondet4_1|} OutVars{main_#t~nondet4=|v_main_#t~nondet4_1|} AuxVars[] AssignedVars[] {95#(= main_~x~0 0)} is VALID [2022-04-27 17:03:03,542 INFO L290 TraceCheckUtils]: 7: Hoare triple {95#(= main_~x~0 0)} [50] L13-1-->L13-4: Formula: (= |v_main_#t~nondet4_3| 0) InVars {main_#t~nondet4=|v_main_#t~nondet4_3|} OutVars{} AuxVars[] AssignedVars[main_#t~nondet4] {95#(= main_~x~0 0)} is VALID [2022-04-27 17:03:03,543 INFO L272 TraceCheckUtils]: 8: Hoare triple {95#(= main_~x~0 0)} [49] L13-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (mod v_main_~x~0_5 4) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0] {96#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-27 17:03:03,543 INFO L290 TraceCheckUtils]: 9: Hoare triple {96#(not (= |__VERIFIER_assert_#in~cond| 0))} [53] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {97#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-27 17:03:03,543 INFO L290 TraceCheckUtils]: 10: Hoare triple {97#(not (= __VERIFIER_assert_~cond 0))} [55] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {91#false} is VALID [2022-04-27 17:03:03,544 INFO L290 TraceCheckUtils]: 11: Hoare triple {91#false} [57] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {91#false} is VALID [2022-04-27 17:03:03,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-27 17:03:03,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 17:03:03,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110182740] [2022-04-27 17:03:03,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110182740] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 17:03:03,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 17:03:03,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-27 17:03:03,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608340014] [2022-04-27 17:03:03,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 17:03:03,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 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 [2022-04-27 17:03:03,546 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 17:03:03,546 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 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) [2022-04-27 17:03:03,556 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 17:03:03,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-27 17:03:03,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 17:03:03,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-27 17:03:03,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-27 17:03:03,558 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 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) [2022-04-27 17:03:03,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 17:03:03,636 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-04-27 17:03:03,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-27 17:03:03,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 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 [2022-04-27 17:03:03,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 17:03:03,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 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) [2022-04-27 17:03:03,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2022-04-27 17:03:03,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 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) [2022-04-27 17:03:03,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2022-04-27 17:03:03,639 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 19 transitions. [2022-04-27 17:03:03,675 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 17:03:03,676 INFO L225 Difference]: With dead ends: 18 [2022-04-27 17:03:03,676 INFO L226 Difference]: Without dead ends: 15 [2022-04-27 17:03:03,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-27 17:03:03,677 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 11 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 17:03:03,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 28 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 17:03:03,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-04-27 17:03:03,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-04-27 17:03:03,679 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 17:03:03,679 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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) [2022-04-27 17:03:03,680 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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) [2022-04-27 17:03:03,680 INFO L87 Difference]: Start difference. First operand 15 states. Second operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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) [2022-04-27 17:03:03,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 17:03:03,681 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-04-27 17:03:03,681 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-04-27 17:03:03,681 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 17:03:03,681 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 17:03:03,681 INFO L74 IsIncluded]: Start isIncluded. First operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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 15 states. [2022-04-27 17:03:03,682 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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 15 states. [2022-04-27 17:03:03,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 17:03:03,682 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-04-27 17:03:03,683 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-04-27 17:03:03,683 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 17:03:03,683 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 17:03:03,683 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 17:03:03,683 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 17:03:03,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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) [2022-04-27 17:03:03,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-04-27 17:03:03,684 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2022-04-27 17:03:03,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 17:03:03,684 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-04-27 17:03:03,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 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) [2022-04-27 17:03:03,684 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-04-27 17:03:03,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-27 17:03:03,685 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 17:03:03,685 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 17:03:03,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-27 17:03:03,685 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 17:03:03,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 17:03:03,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1523776447, now seen corresponding path program 1 times [2022-04-27 17:03:03,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 17:03:03,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817845919] [2022-04-27 17:03:03,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 17:03:03,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 17:03:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 17:03:03,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-27 17:03:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 17:03:03,777 INFO L290 TraceCheckUtils]: 0: Hoare triple {179#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [43] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1)) (.cse1 (select |v_#memory_int_1| 2))) (and (= 48 (select .cse0 0)) (= 111 (select .cse1 1)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select .cse1 6) 0) (= (select .cse1 2) 100) (< 0 |v_#StackHeapBarrier_1|) (= (select .cse1 3) 52) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= 109 (select .cse1 0)) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0) (= 99 (select .cse1 5)) (= 7 (select |v_#length_1| 2)) (= (select .cse1 4) 46))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {170#true} is VALID [2022-04-27 17:03:03,777 INFO L290 TraceCheckUtils]: 1: Hoare triple {170#true} [46] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {170#true} is VALID [2022-04-27 17:03:03,777 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {170#true} {170#true} [60] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {170#true} is VALID [2022-04-27 17:03:03,778 INFO L272 TraceCheckUtils]: 0: Hoare triple {170#true} [41] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {179#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-27 17:03:03,778 INFO L290 TraceCheckUtils]: 1: Hoare triple {179#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [43] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1)) (.cse1 (select |v_#memory_int_1| 2))) (and (= 48 (select .cse0 0)) (= 111 (select .cse1 1)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select .cse1 6) 0) (= (select .cse1 2) 100) (< 0 |v_#StackHeapBarrier_1|) (= (select .cse1 3) 52) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= 109 (select .cse1 0)) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0) (= 99 (select .cse1 5)) (= 7 (select |v_#length_1| 2)) (= (select .cse1 4) 46))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {170#true} is VALID [2022-04-27 17:03:03,778 INFO L290 TraceCheckUtils]: 2: Hoare triple {170#true} [46] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {170#true} is VALID [2022-04-27 17:03:03,778 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {170#true} {170#true} [60] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {170#true} is VALID [2022-04-27 17:03:03,778 INFO L272 TraceCheckUtils]: 4: Hoare triple {170#true} [42] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {170#true} is VALID [2022-04-27 17:03:03,779 INFO L290 TraceCheckUtils]: 5: Hoare triple {170#true} [45] mainENTRY-->L13-3: Formula: (= v_main_~x~0_2 0) InVars {} OutVars{main_~x~0=v_main_~x~0_2} AuxVars[] AssignedVars[main_~x~0] {175#(= main_~x~0 0)} is VALID [2022-04-27 17:03:03,779 INFO L290 TraceCheckUtils]: 6: Hoare triple {175#(= main_~x~0 0)} [48] L13-3-->L13-1: Formula: (and (<= |v_main_#t~nondet4_1| 2147483647) (<= 0 (+ |v_main_#t~nondet4_1| 2147483648))) InVars {main_#t~nondet4=|v_main_#t~nondet4_1|} OutVars{main_#t~nondet4=|v_main_#t~nondet4_1|} AuxVars[] AssignedVars[] {175#(= main_~x~0 0)} is VALID [2022-04-27 17:03:03,780 INFO L290 TraceCheckUtils]: 7: Hoare triple {175#(= main_~x~0 0)} [51] L13-1-->L13-3: Formula: (and (= (+ v_main_~x~0_4 4) v_main_~x~0_3) (not (= |v_main_#t~nondet4_5| 0))) InVars {main_~x~0=v_main_~x~0_4, main_#t~nondet4=|v_main_#t~nondet4_5|} OutVars{main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0] {176#(and (<= main_~x~0 (* (div main_~x~0 4) 4)) (not (<= (div main_~x~0 4) 0)))} is VALID [2022-04-27 17:03:03,780 INFO L290 TraceCheckUtils]: 8: Hoare triple {176#(and (<= main_~x~0 (* (div main_~x~0 4) 4)) (not (<= (div main_~x~0 4) 0)))} [48] L13-3-->L13-1: Formula: (and (<= |v_main_#t~nondet4_1| 2147483647) (<= 0 (+ |v_main_#t~nondet4_1| 2147483648))) InVars {main_#t~nondet4=|v_main_#t~nondet4_1|} OutVars{main_#t~nondet4=|v_main_#t~nondet4_1|} AuxVars[] AssignedVars[] {176#(and (<= main_~x~0 (* (div main_~x~0 4) 4)) (not (<= (div main_~x~0 4) 0)))} is VALID [2022-04-27 17:03:03,781 INFO L290 TraceCheckUtils]: 9: Hoare triple {176#(and (<= main_~x~0 (* (div main_~x~0 4) 4)) (not (<= (div main_~x~0 4) 0)))} [50] L13-1-->L13-4: Formula: (= |v_main_#t~nondet4_3| 0) InVars {main_#t~nondet4=|v_main_#t~nondet4_3|} OutVars{} AuxVars[] AssignedVars[main_#t~nondet4] {176#(and (<= main_~x~0 (* (div main_~x~0 4) 4)) (not (<= (div main_~x~0 4) 0)))} is VALID [2022-04-27 17:03:03,782 INFO L272 TraceCheckUtils]: 10: Hoare triple {176#(and (<= main_~x~0 (* (div main_~x~0 4) 4)) (not (<= (div main_~x~0 4) 0)))} [49] L13-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (mod v_main_~x~0_5 4) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0] {177#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-27 17:03:03,782 INFO L290 TraceCheckUtils]: 11: Hoare triple {177#(not (= |__VERIFIER_assert_#in~cond| 0))} [53] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {178#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-27 17:03:03,783 INFO L290 TraceCheckUtils]: 12: Hoare triple {178#(not (= __VERIFIER_assert_~cond 0))} [55] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {171#false} is VALID [2022-04-27 17:03:03,783 INFO L290 TraceCheckUtils]: 13: Hoare triple {171#false} [57] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {171#false} is VALID [2022-04-27 17:03:03,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-27 17:03:03,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 17:03:03,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817845919] [2022-04-27 17:03:03,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817845919] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-27 17:03:03,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114565342] [2022-04-27 17:03:03,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 17:03:03,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 17:03:03,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 17:03:03,786 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-27 17:03:03,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-27 17:03:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 17:03:03,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-27 17:03:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 17:03:03,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-27 17:03:03,921 INFO L272 TraceCheckUtils]: 0: Hoare triple {170#true} [41] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {170#true} is VALID [2022-04-27 17:03:03,921 INFO L290 TraceCheckUtils]: 1: Hoare triple {170#true} [43] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1)) (.cse1 (select |v_#memory_int_1| 2))) (and (= 48 (select .cse0 0)) (= 111 (select .cse1 1)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select .cse1 6) 0) (= (select .cse1 2) 100) (< 0 |v_#StackHeapBarrier_1|) (= (select .cse1 3) 52) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= 109 (select .cse1 0)) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0) (= 99 (select .cse1 5)) (= 7 (select |v_#length_1| 2)) (= (select .cse1 4) 46))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {170#true} is VALID [2022-04-27 17:03:03,921 INFO L290 TraceCheckUtils]: 2: Hoare triple {170#true} [46] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {170#true} is VALID [2022-04-27 17:03:03,921 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {170#true} {170#true} [60] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {170#true} is VALID [2022-04-27 17:03:03,922 INFO L272 TraceCheckUtils]: 4: Hoare triple {170#true} [42] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {170#true} is VALID [2022-04-27 17:03:03,922 INFO L290 TraceCheckUtils]: 5: Hoare triple {170#true} [45] mainENTRY-->L13-3: Formula: (= v_main_~x~0_2 0) InVars {} OutVars{main_~x~0=v_main_~x~0_2} AuxVars[] AssignedVars[main_~x~0] {175#(= main_~x~0 0)} is VALID [2022-04-27 17:03:03,922 INFO L290 TraceCheckUtils]: 6: Hoare triple {175#(= main_~x~0 0)} [48] L13-3-->L13-1: Formula: (and (<= |v_main_#t~nondet4_1| 2147483647) (<= 0 (+ |v_main_#t~nondet4_1| 2147483648))) InVars {main_#t~nondet4=|v_main_#t~nondet4_1|} OutVars{main_#t~nondet4=|v_main_#t~nondet4_1|} AuxVars[] AssignedVars[] {175#(= main_~x~0 0)} is VALID [2022-04-27 17:03:03,923 INFO L290 TraceCheckUtils]: 7: Hoare triple {175#(= main_~x~0 0)} [51] L13-1-->L13-3: Formula: (and (= (+ v_main_~x~0_4 4) v_main_~x~0_3) (not (= |v_main_#t~nondet4_5| 0))) InVars {main_~x~0=v_main_~x~0_4, main_#t~nondet4=|v_main_#t~nondet4_5|} OutVars{main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0] {204#(= (+ main_~x~0 (- 4)) 0)} is VALID [2022-04-27 17:03:03,923 INFO L290 TraceCheckUtils]: 8: Hoare triple {204#(= (+ main_~x~0 (- 4)) 0)} [48] L13-3-->L13-1: Formula: (and (<= |v_main_#t~nondet4_1| 2147483647) (<= 0 (+ |v_main_#t~nondet4_1| 2147483648))) InVars {main_#t~nondet4=|v_main_#t~nondet4_1|} OutVars{main_#t~nondet4=|v_main_#t~nondet4_1|} AuxVars[] AssignedVars[] {204#(= (+ main_~x~0 (- 4)) 0)} is VALID [2022-04-27 17:03:03,924 INFO L290 TraceCheckUtils]: 9: Hoare triple {204#(= (+ main_~x~0 (- 4)) 0)} [50] L13-1-->L13-4: Formula: (= |v_main_#t~nondet4_3| 0) InVars {main_#t~nondet4=|v_main_#t~nondet4_3|} OutVars{} AuxVars[] AssignedVars[main_#t~nondet4] {204#(= (+ main_~x~0 (- 4)) 0)} is VALID [2022-04-27 17:03:03,924 INFO L272 TraceCheckUtils]: 10: Hoare triple {204#(= (+ main_~x~0 (- 4)) 0)} [49] L13-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (mod v_main_~x~0_5 4) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0] {214#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-27 17:03:03,925 INFO L290 TraceCheckUtils]: 11: Hoare triple {214#(<= 1 |__VERIFIER_assert_#in~cond|)} [53] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {218#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-27 17:03:03,925 INFO L290 TraceCheckUtils]: 12: Hoare triple {218#(<= 1 __VERIFIER_assert_~cond)} [55] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {171#false} is VALID [2022-04-27 17:03:03,926 INFO L290 TraceCheckUtils]: 13: Hoare triple {171#false} [57] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {171#false} is VALID [2022-04-27 17:03:03,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-27 17:03:03,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-27 17:03:04,019 INFO L290 TraceCheckUtils]: 13: Hoare triple {171#false} [57] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {171#false} is VALID [2022-04-27 17:03:04,020 INFO L290 TraceCheckUtils]: 12: Hoare triple {218#(<= 1 __VERIFIER_assert_~cond)} [55] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {171#false} is VALID [2022-04-27 17:03:04,020 INFO L290 TraceCheckUtils]: 11: Hoare triple {214#(<= 1 |__VERIFIER_assert_#in~cond|)} [53] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {218#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-27 17:03:04,021 INFO L272 TraceCheckUtils]: 10: Hoare triple {234#(= (mod main_~x~0 4) 0)} [49] L13-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (mod v_main_~x~0_5 4) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0] {214#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-27 17:03:04,022 INFO L290 TraceCheckUtils]: 9: Hoare triple {234#(= (mod main_~x~0 4) 0)} [50] L13-1-->L13-4: Formula: (= |v_main_#t~nondet4_3| 0) InVars {main_#t~nondet4=|v_main_#t~nondet4_3|} OutVars{} AuxVars[] AssignedVars[main_#t~nondet4] {234#(= (mod main_~x~0 4) 0)} is VALID [2022-04-27 17:03:04,022 INFO L290 TraceCheckUtils]: 8: Hoare triple {234#(= (mod main_~x~0 4) 0)} [48] L13-3-->L13-1: Formula: (and (<= |v_main_#t~nondet4_1| 2147483647) (<= 0 (+ |v_main_#t~nondet4_1| 2147483648))) InVars {main_#t~nondet4=|v_main_#t~nondet4_1|} OutVars{main_#t~nondet4=|v_main_#t~nondet4_1|} AuxVars[] AssignedVars[] {234#(= (mod main_~x~0 4) 0)} is VALID [2022-04-27 17:03:04,023 INFO L290 TraceCheckUtils]: 7: Hoare triple {234#(= (mod main_~x~0 4) 0)} [51] L13-1-->L13-3: Formula: (and (= (+ v_main_~x~0_4 4) v_main_~x~0_3) (not (= |v_main_#t~nondet4_5| 0))) InVars {main_~x~0=v_main_~x~0_4, main_#t~nondet4=|v_main_#t~nondet4_5|} OutVars{main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0] {234#(= (mod main_~x~0 4) 0)} is VALID [2022-04-27 17:03:04,023 INFO L290 TraceCheckUtils]: 6: Hoare triple {234#(= (mod main_~x~0 4) 0)} [48] L13-3-->L13-1: Formula: (and (<= |v_main_#t~nondet4_1| 2147483647) (<= 0 (+ |v_main_#t~nondet4_1| 2147483648))) InVars {main_#t~nondet4=|v_main_#t~nondet4_1|} OutVars{main_#t~nondet4=|v_main_#t~nondet4_1|} AuxVars[] AssignedVars[] {234#(= (mod main_~x~0 4) 0)} is VALID [2022-04-27 17:03:04,024 INFO L290 TraceCheckUtils]: 5: Hoare triple {170#true} [45] mainENTRY-->L13-3: Formula: (= v_main_~x~0_2 0) InVars {} OutVars{main_~x~0=v_main_~x~0_2} AuxVars[] AssignedVars[main_~x~0] {234#(= (mod main_~x~0 4) 0)} is VALID [2022-04-27 17:03:04,024 INFO L272 TraceCheckUtils]: 4: Hoare triple {170#true} [42] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {170#true} is VALID [2022-04-27 17:03:04,024 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {170#true} {170#true} [60] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {170#true} is VALID [2022-04-27 17:03:04,024 INFO L290 TraceCheckUtils]: 2: Hoare triple {170#true} [46] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {170#true} is VALID [2022-04-27 17:03:04,024 INFO L290 TraceCheckUtils]: 1: Hoare triple {170#true} [43] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1)) (.cse1 (select |v_#memory_int_1| 2))) (and (= 48 (select .cse0 0)) (= 111 (select .cse1 1)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select .cse1 6) 0) (= (select .cse1 2) 100) (< 0 |v_#StackHeapBarrier_1|) (= (select .cse1 3) 52) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= 109 (select .cse1 0)) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0) (= 99 (select .cse1 5)) (= 7 (select |v_#length_1| 2)) (= (select .cse1 4) 46))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {170#true} is VALID [2022-04-27 17:03:04,024 INFO L272 TraceCheckUtils]: 0: Hoare triple {170#true} [41] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {170#true} is VALID [2022-04-27 17:03:04,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-27 17:03:04,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114565342] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-27 17:03:04,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-27 17:03:04,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 6] total 11 [2022-04-27 17:03:04,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941783294] [2022-04-27 17:03:04,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 17:03:04,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-27 17:03:04,026 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 17:03:04,026 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 17:03:04,036 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 17:03:04,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-27 17:03:04,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 17:03:04,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-27 17:03:04,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-04-27 17:03:04,037 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 17:03:04,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 17:03:04,066 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-27 17:03:04,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-27 17:03:04,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-27 17:03:04,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 17:03:04,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 17:03:04,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-04-27 17:03:04,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 17:03:04,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-04-27 17:03:04,068 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 12 transitions. [2022-04-27 17:03:04,077 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 17:03:04,077 INFO L225 Difference]: With dead ends: 13 [2022-04-27 17:03:04,077 INFO L226 Difference]: Without dead ends: 0 [2022-04-27 17:03:04,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-04-27 17:03:04,078 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 17:03:04,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 30 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 17:03:04,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-27 17:03:04,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-27 17:03:04,079 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 17:03:04,079 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) [2022-04-27 17:03:04,079 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) [2022-04-27 17:03:04,080 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) [2022-04-27 17:03:04,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 17:03:04,080 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-27 17:03:04,080 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 17:03:04,080 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 17:03:04,080 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 17:03:04,080 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. [2022-04-27 17:03:04,080 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. [2022-04-27 17:03:04,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 17:03:04,080 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-27 17:03:04,081 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 17:03:04,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 17:03:04,081 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 17:03:04,081 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 17:03:04,081 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 17:03:04,081 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) [2022-04-27 17:03:04,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-27 17:03:04,081 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-04-27 17:03:04,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 17:03:04,081 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-27 17:03:04,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 17:03:04,082 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 17:03:04,082 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 17:03:04,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-27 17:03:04,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-27 17:03:04,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 17:03:04,303 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-04-27 17:03:04,304 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-04-27 17:03:04,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 05:03:04 BasicIcfg [2022-04-27 17:03:04,306 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-27 17:03:04,307 INFO L158 Benchmark]: Toolchain (without parser) took 1599.02ms. Allocated memory was 233.8MB in the beginning and 281.0MB in the end (delta: 47.2MB). Free memory was 212.7MB in the beginning and 217.3MB in the end (delta: -4.5MB). Peak memory consumption was 42.7MB. Max. memory is 8.0GB. [2022-04-27 17:03:04,307 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 233.8MB. Free memory is still 199.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-27 17:03:04,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 149.30ms. Allocated memory is still 233.8MB. Free memory was 212.5MB in the beginning and 210.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.2MB. Max. memory is 8.0GB. [2022-04-27 17:03:04,308 INFO L158 Benchmark]: Boogie Preprocessor took 30.10ms. Allocated memory is still 233.8MB. Free memory was 210.7MB in the beginning and 209.4MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-27 17:03:04,308 INFO L158 Benchmark]: RCFGBuilder took 193.67ms. Allocated memory is still 233.8MB. Free memory was 209.0MB in the beginning and 199.2MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-04-27 17:03:04,308 INFO L158 Benchmark]: IcfgTransformer took 16.44ms. Allocated memory is still 233.8MB. Free memory was 199.2MB in the beginning and 197.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-27 17:03:04,309 INFO L158 Benchmark]: TraceAbstraction took 1205.64ms. Allocated memory was 233.8MB in the beginning and 281.0MB in the end (delta: 47.2MB). Free memory was 197.5MB in the beginning and 217.3MB in the end (delta: -19.8MB). Peak memory consumption was 27.2MB. Max. memory is 8.0GB. [2022-04-27 17:03:04,310 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 0.11ms. Allocated memory is still 233.8MB. Free memory is still 199.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 149.30ms. Allocated memory is still 233.8MB. Free memory was 212.5MB in the beginning and 210.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.10ms. Allocated memory is still 233.8MB. Free memory was 210.7MB in the beginning and 209.4MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 193.67ms. Allocated memory is still 233.8MB. Free memory was 209.0MB in the beginning and 199.2MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 16.44ms. Allocated memory is still 233.8MB. Free memory was 199.2MB in the beginning and 197.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 1205.64ms. Allocated memory was 233.8MB in the beginning and 281.0MB in the end (delta: 47.2MB). Free memory was 197.5MB in the beginning and 217.3MB in the end (delta: -19.8MB). Peak memory consumption was 27.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 39 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 14, 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 183 SizeOfPredicates, 1 NumberOfNonLiveVariables, 73 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 2/6 InterpolantCoveringCapability, 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 RESULT: Ultimate proved your program to be correct! [2022-04-27 17:03:04,344 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...