/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-15 06:07:20,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-15 06:07:20,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-15 06:07:20,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-15 06:07:20,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-15 06:07:20,590 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-15 06:07:20,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-15 06:07:20,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-15 06:07:20,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-15 06:07:20,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-15 06:07:20,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-15 06:07:20,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-15 06:07:20,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-15 06:07:20,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-15 06:07:20,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-15 06:07:20,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-15 06:07:20,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-15 06:07:20,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-15 06:07:20,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-15 06:07:20,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-15 06:07:20,600 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-15 06:07:20,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-15 06:07:20,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-15 06:07:20,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-15 06:07:20,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-15 06:07:20,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-15 06:07:20,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-15 06:07:20,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-15 06:07:20,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-15 06:07:20,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-15 06:07:20,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-15 06:07:20,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-15 06:07:20,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-15 06:07:20,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-15 06:07:20,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-15 06:07:20,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-15 06:07:20,609 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-15 06:07:20,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-15 06:07:20,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-15 06:07:20,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-15 06:07:20,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-15 06:07:20,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-15 06:07:20,611 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-04-15 06:07:20,617 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-15 06:07:20,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-15 06:07:20,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-15 06:07:20,618 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-15 06:07:20,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-15 06:07:20,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-15 06:07:20,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-15 06:07:20,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-15 06:07:20,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-15 06:07:20,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-15 06:07:20,619 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-15 06:07:20,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-15 06:07:20,619 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-15 06:07:20,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-15 06:07:20,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-15 06:07:20,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-15 06:07:20,619 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-15 06:07:20,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-15 06:07:20,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 06:07:20,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-15 06:07:20,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-15 06:07:20,620 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-15 06:07:20,620 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-15 06:07:20,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-15 06:07:20,620 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-04-15 06:07:20,620 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-15 06:07:20,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-15 06:07:20,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-15 06:07:20,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-15 06:07:20,860 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-15 06:07:20,860 INFO L275 PluginConnector]: CDTParser initialized [2022-04-15 06:07:20,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-1.i [2022-04-15 06:07:20,919 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15690eda8/d150416a93064097b83c74bd31281a92/FLAG9355c4270 [2022-04-15 06:07:21,307 INFO L306 CDTParser]: Found 1 translation units. [2022-04-15 06:07:21,308 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-1.i [2022-04-15 06:07:21,314 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15690eda8/d150416a93064097b83c74bd31281a92/FLAG9355c4270 [2022-04-15 06:07:21,729 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15690eda8/d150416a93064097b83c74bd31281a92 [2022-04-15 06:07:21,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-15 06:07:21,733 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-15 06:07:21,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-15 06:07:21,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-15 06:07:21,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-15 06:07:21,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 06:07:21" (1/1) ... [2022-04-15 06:07:21,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bf37a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:07:21, skipping insertion in model container [2022-04-15 06:07:21,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 06:07:21" (1/1) ... [2022-04-15 06:07:21,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-15 06:07:21,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-15 06:07:21,910 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-crafted/simple_array_index_value_1-1.i[834,847] [2022-04-15 06:07:21,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 06:07:21,944 INFO L203 MainTranslator]: Completed pre-run [2022-04-15 06:07:21,961 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-crafted/simple_array_index_value_1-1.i[834,847] [2022-04-15 06:07:21,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 06:07:21,995 INFO L208 MainTranslator]: Completed translation [2022-04-15 06:07:21,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:07:21 WrapperNode [2022-04-15 06:07:21,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-15 06:07:21,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-15 06:07:21,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-15 06:07:21,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-15 06:07:22,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:07:21" (1/1) ... [2022-04-15 06:07:22,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:07:21" (1/1) ... [2022-04-15 06:07:22,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:07:21" (1/1) ... [2022-04-15 06:07:22,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:07:21" (1/1) ... [2022-04-15 06:07:22,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:07:21" (1/1) ... [2022-04-15 06:07:22,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:07:21" (1/1) ... [2022-04-15 06:07:22,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:07:21" (1/1) ... [2022-04-15 06:07:22,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-15 06:07:22,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-15 06:07:22,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-15 06:07:22,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-15 06:07:22,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:07:21" (1/1) ... [2022-04-15 06:07:22,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 06:07:22,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 06:07:22,093 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) [2022-04-15 06:07:22,114 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 [2022-04-15 06:07:22,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-15 06:07:22,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-15 06:07:22,127 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-15 06:07:22,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-15 06:07:22,127 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-15 06:07:22,127 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-15 06:07:22,127 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-15 06:07:22,127 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-04-15 06:07:22,128 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-04-15 06:07:22,128 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-15 06:07:22,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-15 06:07:22,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-15 06:07:22,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-15 06:07:22,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-15 06:07:22,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-15 06:07:22,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-15 06:07:22,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-15 06:07:22,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-15 06:07:22,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-15 06:07:22,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-15 06:07:22,200 INFO L234 CfgBuilder]: Building ICFG [2022-04-15 06:07:22,201 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-15 06:07:22,383 INFO L275 CfgBuilder]: Performing block encoding [2022-04-15 06:07:22,388 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-15 06:07:22,388 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-15 06:07:22,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 06:07:22 BoogieIcfgContainer [2022-04-15 06:07:22,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-15 06:07:22,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-15 06:07:22,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-15 06:07:22,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-15 06:07:22,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 06:07:21" (1/3) ... [2022-04-15 06:07:22,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cbffe51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 06:07:22, skipping insertion in model container [2022-04-15 06:07:22,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 06:07:21" (2/3) ... [2022-04-15 06:07:22,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cbffe51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 06:07:22, skipping insertion in model container [2022-04-15 06:07:22,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 06:07:22" (3/3) ... [2022-04-15 06:07:22,421 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_1-1.i [2022-04-15 06:07:22,424 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-15 06:07:22,424 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-15 06:07:22,469 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-15 06:07:22,475 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-15 06:07:22,476 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-15 06:07:22,502 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-15 06:07:22,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-15 06:07:22,508 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 06:07:22,508 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 06:07:22,509 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 06:07:22,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 06:07:22,513 INFO L85 PathProgramCache]: Analyzing trace with hash 56847072, now seen corresponding path program 1 times [2022-04-15 06:07:22,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 06:07:22,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [822456478] [2022-04-15 06:07:22,530 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 06:07:22,530 INFO L85 PathProgramCache]: Analyzing trace with hash 56847072, now seen corresponding path program 2 times [2022-04-15 06:07:22,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 06:07:22,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426589159] [2022-04-15 06:07:22,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 06:07:22,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 06:07:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:07:22,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 06:07:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:07:22,712 INFO L290 TraceCheckUtils]: 0: Hoare triple {35#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {30#true} is VALID [2022-04-15 06:07:22,713 INFO L290 TraceCheckUtils]: 1: Hoare triple {30#true} assume true; {30#true} is VALID [2022-04-15 06:07:22,713 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {30#true} {30#true} #67#return; {30#true} is VALID [2022-04-15 06:07:22,714 INFO L272 TraceCheckUtils]: 0: Hoare triple {30#true} call ULTIMATE.init(); {35#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 06:07:22,715 INFO L290 TraceCheckUtils]: 1: Hoare triple {35#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {30#true} is VALID [2022-04-15 06:07:22,715 INFO L290 TraceCheckUtils]: 2: Hoare triple {30#true} assume true; {30#true} is VALID [2022-04-15 06:07:22,715 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {30#true} {30#true} #67#return; {30#true} is VALID [2022-04-15 06:07:22,715 INFO L272 TraceCheckUtils]: 4: Hoare triple {30#true} call #t~ret5 := main(); {30#true} is VALID [2022-04-15 06:07:22,715 INFO L290 TraceCheckUtils]: 5: Hoare triple {30#true} call ~#array~0.base, ~#array~0.offset := #Ultimate.allocOnStack(4000);havoc ~index~0;~index~0 := 0; {30#true} is VALID [2022-04-15 06:07:22,716 INFO L290 TraceCheckUtils]: 6: Hoare triple {30#true} assume !true; {31#false} is VALID [2022-04-15 06:07:22,716 INFO L290 TraceCheckUtils]: 7: Hoare triple {31#false} ~index~0 := 0; {31#false} is VALID [2022-04-15 06:07:22,716 INFO L290 TraceCheckUtils]: 8: Hoare triple {31#false} assume !!(~index~0 % 4294967296 < 1000); {31#false} is VALID [2022-04-15 06:07:22,717 INFO L290 TraceCheckUtils]: 9: Hoare triple {31#false} assume 0 == (if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2) % 4294967296;call #t~mem3 := read~int(~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {31#false} is VALID [2022-04-15 06:07:22,717 INFO L272 TraceCheckUtils]: 10: Hoare triple {31#false} call __VERIFIER_assert((if 0 == #t~mem3 % 4294967296 then 1 else 0)); {31#false} is VALID [2022-04-15 06:07:22,717 INFO L290 TraceCheckUtils]: 11: Hoare triple {31#false} ~cond := #in~cond; {31#false} is VALID [2022-04-15 06:07:22,717 INFO L290 TraceCheckUtils]: 12: Hoare triple {31#false} assume 0 == ~cond; {31#false} is VALID [2022-04-15 06:07:22,718 INFO L290 TraceCheckUtils]: 13: Hoare triple {31#false} assume !false; {31#false} is VALID [2022-04-15 06:07:22,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 06:07:22,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 06:07:22,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426589159] [2022-04-15 06:07:22,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426589159] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 06:07:22,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 06:07:22,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-15 06:07:22,721 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 06:07:22,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [822456478] [2022-04-15 06:07:22,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [822456478] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 06:07:22,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 06:07:22,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-15 06:07:22,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414715782] [2022-04-15 06:07:22,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 06:07:22,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-15 06:07:22,734 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 06:07:22,736 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 06:07:22,759 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:07:22,759 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-15 06:07:22,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 06:07:22,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-15 06:07:22,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-15 06:07:22,775 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 06:07:22,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:07:22,853 INFO L93 Difference]: Finished difference Result 46 states and 58 transitions. [2022-04-15 06:07:22,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-15 06:07:22,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-15 06:07:22,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 06:07:22,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 06:07:22,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2022-04-15 06:07:22,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 06:07:22,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2022-04-15 06:07:22,864 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 58 transitions. [2022-04-15 06:07:22,942 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 58 edges. 58 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:07:22,947 INFO L225 Difference]: With dead ends: 46 [2022-04-15 06:07:22,947 INFO L226 Difference]: Without dead ends: 22 [2022-04-15 06:07:22,949 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-15 06:07:22,952 INFO L913 BasicCegarLoop]: 28 mSDtfsCounter, 19 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-15 06:07:22,952 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 31 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-15 06:07:22,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-04-15 06:07:22,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-04-15 06:07:22,972 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 06:07:22,973 INFO L82 GeneralOperation]: Start isEquivalent. First operand 22 states. Second operand has 22 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 06:07:22,973 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand has 22 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 06:07:22,974 INFO L87 Difference]: Start difference. First operand 22 states. Second operand has 22 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 06:07:22,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:07:22,977 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2022-04-15 06:07:22,977 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-04-15 06:07:22,977 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 06:07:22,977 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 06:07:22,978 INFO L74 IsIncluded]: Start isIncluded. First operand has 22 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 22 states. [2022-04-15 06:07:22,978 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 22 states. [2022-04-15 06:07:22,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:07:22,981 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2022-04-15 06:07:22,981 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-04-15 06:07:22,981 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 06:07:22,981 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 06:07:22,981 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 06:07:22,982 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 06:07:22,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 06:07:22,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-04-15 06:07:22,997 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 14 [2022-04-15 06:07:22,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 06:07:22,997 INFO L478 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-04-15 06:07:22,997 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 06:07:22,997 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 22 states and 25 transitions. [2022-04-15 06:07:23,045 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:07:23,045 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-04-15 06:07:23,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-15 06:07:23,047 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 06:07:23,047 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 06:07:23,047 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-15 06:07:23,047 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 06:07:23,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 06:07:23,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1810080346, now seen corresponding path program 1 times [2022-04-15 06:07:23,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 06:07:23,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1236393303] [2022-04-15 06:07:23,049 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 06:07:23,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1810080346, now seen corresponding path program 2 times [2022-04-15 06:07:23,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 06:07:23,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750962350] [2022-04-15 06:07:23,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 06:07:23,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 06:07:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:07:23,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 06:07:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:07:23,145 INFO L290 TraceCheckUtils]: 0: Hoare triple {224#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {218#true} is VALID [2022-04-15 06:07:23,145 INFO L290 TraceCheckUtils]: 1: Hoare triple {218#true} assume true; {218#true} is VALID [2022-04-15 06:07:23,145 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {218#true} {218#true} #67#return; {218#true} is VALID [2022-04-15 06:07:23,146 INFO L272 TraceCheckUtils]: 0: Hoare triple {218#true} call ULTIMATE.init(); {224#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 06:07:23,146 INFO L290 TraceCheckUtils]: 1: Hoare triple {224#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {218#true} is VALID [2022-04-15 06:07:23,146 INFO L290 TraceCheckUtils]: 2: Hoare triple {218#true} assume true; {218#true} is VALID [2022-04-15 06:07:23,146 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {218#true} {218#true} #67#return; {218#true} is VALID [2022-04-15 06:07:23,146 INFO L272 TraceCheckUtils]: 4: Hoare triple {218#true} call #t~ret5 := main(); {218#true} is VALID [2022-04-15 06:07:23,147 INFO L290 TraceCheckUtils]: 5: Hoare triple {218#true} call ~#array~0.base, ~#array~0.offset := #Ultimate.allocOnStack(4000);havoc ~index~0;~index~0 := 0; {223#(= main_~index~0 0)} is VALID [2022-04-15 06:07:23,147 INFO L290 TraceCheckUtils]: 6: Hoare triple {223#(= main_~index~0 0)} assume !(~index~0 % 4294967296 < 1000); {219#false} is VALID [2022-04-15 06:07:23,147 INFO L290 TraceCheckUtils]: 7: Hoare triple {219#false} ~index~0 := 0; {219#false} is VALID [2022-04-15 06:07:23,148 INFO L290 TraceCheckUtils]: 8: Hoare triple {219#false} assume !!(~index~0 % 4294967296 < 1000); {219#false} is VALID [2022-04-15 06:07:23,148 INFO L290 TraceCheckUtils]: 9: Hoare triple {219#false} assume 0 == (if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2) % 4294967296;call #t~mem3 := read~int(~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {219#false} is VALID [2022-04-15 06:07:23,148 INFO L272 TraceCheckUtils]: 10: Hoare triple {219#false} call __VERIFIER_assert((if 0 == #t~mem3 % 4294967296 then 1 else 0)); {219#false} is VALID [2022-04-15 06:07:23,148 INFO L290 TraceCheckUtils]: 11: Hoare triple {219#false} ~cond := #in~cond; {219#false} is VALID [2022-04-15 06:07:23,148 INFO L290 TraceCheckUtils]: 12: Hoare triple {219#false} assume 0 == ~cond; {219#false} is VALID [2022-04-15 06:07:23,148 INFO L290 TraceCheckUtils]: 13: Hoare triple {219#false} assume !false; {219#false} is VALID [2022-04-15 06:07:23,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 06:07:23,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 06:07:23,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750962350] [2022-04-15 06:07:23,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750962350] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 06:07:23,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 06:07:23,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-15 06:07:23,149 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 06:07:23,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1236393303] [2022-04-15 06:07:23,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1236393303] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 06:07:23,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 06:07:23,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-15 06:07:23,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047101795] [2022-04-15 06:07:23,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 06:07:23,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-15 06:07:23,151 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 06:07:23,151 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 06:07:23,162 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:07:23,163 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-15 06:07:23,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 06:07:23,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-15 06:07:23,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-15 06:07:23,164 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 06:07:23,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:07:23,290 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2022-04-15 06:07:23,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-15 06:07:23,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-15 06:07:23,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 06:07:23,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 06:07:23,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 51 transitions. [2022-04-15 06:07:23,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 06:07:23,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 51 transitions. [2022-04-15 06:07:23,295 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 51 transitions. [2022-04-15 06:07:23,361 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:07:23,365 INFO L225 Difference]: With dead ends: 43 [2022-04-15 06:07:23,365 INFO L226 Difference]: Without dead ends: 29 [2022-04-15 06:07:23,366 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-15 06:07:23,369 INFO L913 BasicCegarLoop]: 18 mSDtfsCounter, 24 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-15 06:07:23,370 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 25 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-15 06:07:23,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-04-15 06:07:23,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2022-04-15 06:07:23,380 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 06:07:23,380 INFO L82 GeneralOperation]: Start isEquivalent. First operand 29 states. Second operand has 25 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 06:07:23,381 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand has 25 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 06:07:23,382 INFO L87 Difference]: Start difference. First operand 29 states. Second operand has 25 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 06:07:23,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:07:23,388 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-04-15 06:07:23,388 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2022-04-15 06:07:23,389 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 06:07:23,389 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 06:07:23,389 INFO L74 IsIncluded]: Start isIncluded. First operand has 25 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 29 states. [2022-04-15 06:07:23,391 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 29 states. [2022-04-15 06:07:23,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:07:23,395 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-04-15 06:07:23,395 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2022-04-15 06:07:23,395 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 06:07:23,396 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 06:07:23,396 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 06:07:23,396 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 06:07:23,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 06:07:23,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-04-15 06:07:23,402 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 14 [2022-04-15 06:07:23,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 06:07:23,403 INFO L478 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-04-15 06:07:23,403 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 06:07:23,403 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 25 states and 28 transitions. [2022-04-15 06:07:23,434 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:07:23,434 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-04-15 06:07:23,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-15 06:07:23,435 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 06:07:23,435 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 06:07:23,436 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-15 06:07:23,436 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 06:07:23,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 06:07:23,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1733475192, now seen corresponding path program 1 times [2022-04-15 06:07:23,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 06:07:23,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1043174523] [2022-04-15 06:07:23,469 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-04-15 06:07:23,469 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-04-15 06:07:23,470 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-15 06:07:23,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1733475192, now seen corresponding path program 2 times [2022-04-15 06:07:23,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 06:07:23,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128234030] [2022-04-15 06:07:23,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 06:07:23,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 06:07:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:07:23,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 06:07:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:07:23,620 INFO L290 TraceCheckUtils]: 0: Hoare triple {430#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {423#true} is VALID [2022-04-15 06:07:23,620 INFO L290 TraceCheckUtils]: 1: Hoare triple {423#true} assume true; {423#true} is VALID [2022-04-15 06:07:23,620 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {423#true} {423#true} #67#return; {423#true} is VALID [2022-04-15 06:07:23,621 INFO L272 TraceCheckUtils]: 0: Hoare triple {423#true} call ULTIMATE.init(); {430#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 06:07:23,621 INFO L290 TraceCheckUtils]: 1: Hoare triple {430#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {423#true} is VALID [2022-04-15 06:07:23,621 INFO L290 TraceCheckUtils]: 2: Hoare triple {423#true} assume true; {423#true} is VALID [2022-04-15 06:07:23,621 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {423#true} {423#true} #67#return; {423#true} is VALID [2022-04-15 06:07:23,622 INFO L272 TraceCheckUtils]: 4: Hoare triple {423#true} call #t~ret5 := main(); {423#true} is VALID [2022-04-15 06:07:23,624 INFO L290 TraceCheckUtils]: 5: Hoare triple {423#true} call ~#array~0.base, ~#array~0.offset := #Ultimate.allocOnStack(4000);havoc ~index~0;~index~0 := 0; {428#(= main_~index~0 0)} is VALID [2022-04-15 06:07:23,624 INFO L290 TraceCheckUtils]: 6: Hoare triple {428#(= main_~index~0 0)} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {428#(= main_~index~0 0)} is VALID [2022-04-15 06:07:23,625 INFO L290 TraceCheckUtils]: 7: Hoare triple {428#(= main_~index~0 0)} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {429#(and (<= main_~index~0 1) (not (<= (+ (div main_~index~0 4294967296) 1) 0)))} is VALID [2022-04-15 06:07:23,626 INFO L290 TraceCheckUtils]: 8: Hoare triple {429#(and (<= main_~index~0 1) (not (<= (+ (div main_~index~0 4294967296) 1) 0)))} assume !(~index~0 % 4294967296 < 1000); {424#false} is VALID [2022-04-15 06:07:23,626 INFO L290 TraceCheckUtils]: 9: Hoare triple {424#false} ~index~0 := 0; {424#false} is VALID [2022-04-15 06:07:23,626 INFO L290 TraceCheckUtils]: 10: Hoare triple {424#false} assume !!(~index~0 % 4294967296 < 1000); {424#false} is VALID [2022-04-15 06:07:23,626 INFO L290 TraceCheckUtils]: 11: Hoare triple {424#false} assume 0 == (if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2) % 4294967296;call #t~mem3 := read~int(~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {424#false} is VALID [2022-04-15 06:07:23,626 INFO L272 TraceCheckUtils]: 12: Hoare triple {424#false} call __VERIFIER_assert((if 0 == #t~mem3 % 4294967296 then 1 else 0)); {424#false} is VALID [2022-04-15 06:07:23,626 INFO L290 TraceCheckUtils]: 13: Hoare triple {424#false} ~cond := #in~cond; {424#false} is VALID [2022-04-15 06:07:23,627 INFO L290 TraceCheckUtils]: 14: Hoare triple {424#false} assume 0 == ~cond; {424#false} is VALID [2022-04-15 06:07:23,627 INFO L290 TraceCheckUtils]: 15: Hoare triple {424#false} assume !false; {424#false} is VALID [2022-04-15 06:07:23,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 06:07:23,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 06:07:23,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128234030] [2022-04-15 06:07:23,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128234030] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-15 06:07:23,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699697113] [2022-04-15 06:07:23,628 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-15 06:07:23,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 06:07:23,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 06:07:23,634 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) [2022-04-15 06:07:23,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-15 06:07:23,678 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-15 06:07:23,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-15 06:07:23,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 16 conjunts are in the unsatisfiable core [2022-04-15 06:07:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:07:23,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-15 06:07:23,786 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-04-15 06:07:23,915 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-04-15 06:07:23,975 INFO L272 TraceCheckUtils]: 0: Hoare triple {423#true} call ULTIMATE.init(); {423#true} is VALID [2022-04-15 06:07:23,975 INFO L290 TraceCheckUtils]: 1: Hoare triple {423#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {423#true} is VALID [2022-04-15 06:07:23,975 INFO L290 TraceCheckUtils]: 2: Hoare triple {423#true} assume true; {423#true} is VALID [2022-04-15 06:07:23,975 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {423#true} {423#true} #67#return; {423#true} is VALID [2022-04-15 06:07:23,976 INFO L272 TraceCheckUtils]: 4: Hoare triple {423#true} call #t~ret5 := main(); {423#true} is VALID [2022-04-15 06:07:23,977 INFO L290 TraceCheckUtils]: 5: Hoare triple {423#true} call ~#array~0.base, ~#array~0.offset := #Ultimate.allocOnStack(4000);havoc ~index~0;~index~0 := 0; {428#(= main_~index~0 0)} is VALID [2022-04-15 06:07:23,979 INFO L290 TraceCheckUtils]: 6: Hoare triple {428#(= main_~index~0 0)} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {452#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} is VALID [2022-04-15 06:07:23,979 INFO L290 TraceCheckUtils]: 7: Hoare triple {452#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {452#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} is VALID [2022-04-15 06:07:23,980 INFO L290 TraceCheckUtils]: 8: Hoare triple {452#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} assume !(~index~0 % 4294967296 < 1000); {452#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} is VALID [2022-04-15 06:07:23,980 INFO L290 TraceCheckUtils]: 9: Hoare triple {452#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} ~index~0 := 0; {462#(and (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0) (= main_~index~0 0))} is VALID [2022-04-15 06:07:23,981 INFO L290 TraceCheckUtils]: 10: Hoare triple {462#(and (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0) (= main_~index~0 0))} assume !!(~index~0 % 4294967296 < 1000); {462#(and (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0) (= main_~index~0 0))} is VALID [2022-04-15 06:07:23,981 INFO L290 TraceCheckUtils]: 11: Hoare triple {462#(and (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0) (= main_~index~0 0))} assume 0 == (if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2) % 4294967296;call #t~mem3 := read~int(~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {469#(= |main_#t~mem3| 0)} is VALID [2022-04-15 06:07:23,982 INFO L272 TraceCheckUtils]: 12: Hoare triple {469#(= |main_#t~mem3| 0)} call __VERIFIER_assert((if 0 == #t~mem3 % 4294967296 then 1 else 0)); {473#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-15 06:07:23,982 INFO L290 TraceCheckUtils]: 13: Hoare triple {473#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {477#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-15 06:07:23,983 INFO L290 TraceCheckUtils]: 14: Hoare triple {477#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {424#false} is VALID [2022-04-15 06:07:23,983 INFO L290 TraceCheckUtils]: 15: Hoare triple {424#false} assume !false; {424#false} is VALID [2022-04-15 06:07:23,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 06:07:23,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-15 06:07:24,582 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-04-15 06:07:24,603 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2022-04-15 06:07:24,780 INFO L290 TraceCheckUtils]: 15: Hoare triple {424#false} assume !false; {424#false} is VALID [2022-04-15 06:07:24,781 INFO L290 TraceCheckUtils]: 14: Hoare triple {477#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {424#false} is VALID [2022-04-15 06:07:24,782 INFO L290 TraceCheckUtils]: 13: Hoare triple {473#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {477#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-15 06:07:24,783 INFO L272 TraceCheckUtils]: 12: Hoare triple {493#(= (mod |main_#t~mem3| 4294967296) 0)} call __VERIFIER_assert((if 0 == #t~mem3 % 4294967296 then 1 else 0)); {473#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-15 06:07:24,786 INFO L290 TraceCheckUtils]: 11: Hoare triple {497#(or (not (<= (mod main_~index~0 2) 0)) (and (or (<= (mod main_~index~0 4294967296) 2147483647) (<= (div (+ (- 1) (select (select |#memory_int| |main_~#array~0.base|) (+ (- 17179869184) |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)))) 4294967296) (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (- 17179869184) |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296))) (or (<= (div (- (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)))) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (not (<= (mod main_~index~0 4294967296) 2147483647)))))} assume 0 == (if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2) % 4294967296;call #t~mem3 := read~int(~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {493#(= (mod |main_#t~mem3| 4294967296) 0)} is VALID [2022-04-15 06:07:24,788 INFO L290 TraceCheckUtils]: 10: Hoare triple {501#(or (<= (div (* (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 1)) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (not (<= (mod main_~index~0 2) 0)) (not (< (mod main_~index~0 4294967296) 1000)))} assume !!(~index~0 % 4294967296 < 1000); {497#(or (not (<= (mod main_~index~0 2) 0)) (and (or (<= (mod main_~index~0 4294967296) 2147483647) (<= (div (+ (- 1) (select (select |#memory_int| |main_~#array~0.base|) (+ (- 17179869184) |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)))) 4294967296) (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (- 17179869184) |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296))) (or (<= (div (- (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)))) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (not (<= (mod main_~index~0 4294967296) 2147483647)))))} is VALID [2022-04-15 06:07:24,789 INFO L290 TraceCheckUtils]: 9: Hoare triple {505#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} ~index~0 := 0; {501#(or (<= (div (* (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 1)) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (not (<= (mod main_~index~0 2) 0)) (not (< (mod main_~index~0 4294967296) 1000)))} is VALID [2022-04-15 06:07:24,789 INFO L290 TraceCheckUtils]: 8: Hoare triple {505#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} assume !(~index~0 % 4294967296 < 1000); {505#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} is VALID [2022-04-15 06:07:24,790 INFO L290 TraceCheckUtils]: 7: Hoare triple {505#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {505#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} is VALID [2022-04-15 06:07:24,791 INFO L290 TraceCheckUtils]: 6: Hoare triple {515#(or (= (* (mod main_~index~0 4294967296) 4) 0) (not (< (mod main_~index~0 4294967296) 1000)))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {505#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} is VALID [2022-04-15 06:07:24,792 INFO L290 TraceCheckUtils]: 5: Hoare triple {423#true} call ~#array~0.base, ~#array~0.offset := #Ultimate.allocOnStack(4000);havoc ~index~0;~index~0 := 0; {515#(or (= (* (mod main_~index~0 4294967296) 4) 0) (not (< (mod main_~index~0 4294967296) 1000)))} is VALID [2022-04-15 06:07:24,792 INFO L272 TraceCheckUtils]: 4: Hoare triple {423#true} call #t~ret5 := main(); {423#true} is VALID [2022-04-15 06:07:24,792 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {423#true} {423#true} #67#return; {423#true} is VALID [2022-04-15 06:07:24,792 INFO L290 TraceCheckUtils]: 2: Hoare triple {423#true} assume true; {423#true} is VALID [2022-04-15 06:07:24,792 INFO L290 TraceCheckUtils]: 1: Hoare triple {423#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {423#true} is VALID [2022-04-15 06:07:24,792 INFO L272 TraceCheckUtils]: 0: Hoare triple {423#true} call ULTIMATE.init(); {423#true} is VALID [2022-04-15 06:07:24,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 06:07:24,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699697113] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-15 06:07:24,794 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-15 06:07:24,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 9] total 15 [2022-04-15 06:07:24,795 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 06:07:24,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1043174523] [2022-04-15 06:07:24,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1043174523] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 06:07:24,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 06:07:24,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-15 06:07:24,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299406239] [2022-04-15 06:07:24,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 06:07:24,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 16 [2022-04-15 06:07:24,796 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 06:07:24,796 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-04-15 06:07:24,808 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:07:24,808 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-15 06:07:24,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 06:07:24,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-15 06:07:24,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-04-15 06:07:24,811 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-04-15 06:07:25,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:07:25,043 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2022-04-15 06:07:25,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-15 06:07:25,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 16 [2022-04-15 06:07:25,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 06:07:25,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-04-15 06:07:25,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 59 transitions. [2022-04-15 06:07:25,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-04-15 06:07:25,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 59 transitions. [2022-04-15 06:07:25,048 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 59 transitions. [2022-04-15 06:07:25,111 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 59 edges. 59 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:07:25,113 INFO L225 Difference]: With dead ends: 52 [2022-04-15 06:07:25,113 INFO L226 Difference]: Without dead ends: 36 [2022-04-15 06:07:25,113 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-04-15 06:07:25,114 INFO L913 BasicCegarLoop]: 17 mSDtfsCounter, 33 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-15 06:07:25,115 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 29 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-15 06:07:25,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-04-15 06:07:25,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2022-04-15 06:07:25,127 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 06:07:25,127 INFO L82 GeneralOperation]: Start isEquivalent. First operand 36 states. Second operand has 27 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 06:07:25,128 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand has 27 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 06:07:25,128 INFO L87 Difference]: Start difference. First operand 36 states. Second operand has 27 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 06:07:25,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:07:25,129 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2022-04-15 06:07:25,130 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2022-04-15 06:07:25,130 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 06:07:25,130 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 06:07:25,130 INFO L74 IsIncluded]: Start isIncluded. First operand has 27 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 36 states. [2022-04-15 06:07:25,130 INFO L87 Difference]: Start difference. First operand has 27 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 36 states. [2022-04-15 06:07:25,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:07:25,132 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2022-04-15 06:07:25,132 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2022-04-15 06:07:25,132 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 06:07:25,132 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 06:07:25,132 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 06:07:25,132 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 06:07:25,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 06:07:25,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-04-15 06:07:25,134 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 16 [2022-04-15 06:07:25,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 06:07:25,134 INFO L478 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-04-15 06:07:25,134 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-04-15 06:07:25,134 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 27 states and 30 transitions. [2022-04-15 06:07:25,184 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:07:25,185 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-04-15 06:07:25,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-15 06:07:25,185 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 06:07:25,185 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 06:07:25,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-15 06:07:25,392 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 06:07:25,394 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 06:07:25,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 06:07:25,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1130366230, now seen corresponding path program 3 times [2022-04-15 06:07:25,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 06:07:25,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1019157128] [2022-04-15 06:07:25,402 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-04-15 06:07:25,402 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-04-15 06:07:25,402 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-15 06:07:25,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1130366230, now seen corresponding path program 4 times [2022-04-15 06:07:25,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 06:07:25,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849901211] [2022-04-15 06:07:25,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 06:07:25,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 06:07:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:07:25,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 06:07:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:07:25,469 INFO L290 TraceCheckUtils]: 0: Hoare triple {778#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {770#true} is VALID [2022-04-15 06:07:25,469 INFO L290 TraceCheckUtils]: 1: Hoare triple {770#true} assume true; {770#true} is VALID [2022-04-15 06:07:25,469 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {770#true} {770#true} #67#return; {770#true} is VALID [2022-04-15 06:07:25,470 INFO L272 TraceCheckUtils]: 0: Hoare triple {770#true} call ULTIMATE.init(); {778#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 06:07:25,470 INFO L290 TraceCheckUtils]: 1: Hoare triple {778#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {770#true} is VALID [2022-04-15 06:07:25,470 INFO L290 TraceCheckUtils]: 2: Hoare triple {770#true} assume true; {770#true} is VALID [2022-04-15 06:07:25,470 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {770#true} {770#true} #67#return; {770#true} is VALID [2022-04-15 06:07:25,471 INFO L272 TraceCheckUtils]: 4: Hoare triple {770#true} call #t~ret5 := main(); {770#true} is VALID [2022-04-15 06:07:25,471 INFO L290 TraceCheckUtils]: 5: Hoare triple {770#true} call ~#array~0.base, ~#array~0.offset := #Ultimate.allocOnStack(4000);havoc ~index~0;~index~0 := 0; {775#(= main_~index~0 0)} is VALID [2022-04-15 06:07:25,471 INFO L290 TraceCheckUtils]: 6: Hoare triple {775#(= main_~index~0 0)} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {775#(= main_~index~0 0)} is VALID [2022-04-15 06:07:25,472 INFO L290 TraceCheckUtils]: 7: Hoare triple {775#(= main_~index~0 0)} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {776#(and (<= main_~index~0 1) (<= 1 main_~index~0))} is VALID [2022-04-15 06:07:25,472 INFO L290 TraceCheckUtils]: 8: Hoare triple {776#(and (<= main_~index~0 1) (<= 1 main_~index~0))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {776#(and (<= main_~index~0 1) (<= 1 main_~index~0))} is VALID [2022-04-15 06:07:25,473 INFO L290 TraceCheckUtils]: 9: Hoare triple {776#(and (<= main_~index~0 1) (<= 1 main_~index~0))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {777#(and (<= main_~index~0 2) (not (<= (+ (div main_~index~0 4294967296) 1) 0)))} is VALID [2022-04-15 06:07:25,473 INFO L290 TraceCheckUtils]: 10: Hoare triple {777#(and (<= main_~index~0 2) (not (<= (+ (div main_~index~0 4294967296) 1) 0)))} assume !(~index~0 % 4294967296 < 1000); {771#false} is VALID [2022-04-15 06:07:25,474 INFO L290 TraceCheckUtils]: 11: Hoare triple {771#false} ~index~0 := 0; {771#false} is VALID [2022-04-15 06:07:25,474 INFO L290 TraceCheckUtils]: 12: Hoare triple {771#false} assume !!(~index~0 % 4294967296 < 1000); {771#false} is VALID [2022-04-15 06:07:25,474 INFO L290 TraceCheckUtils]: 13: Hoare triple {771#false} assume 0 == (if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2) % 4294967296;call #t~mem3 := read~int(~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {771#false} is VALID [2022-04-15 06:07:25,474 INFO L272 TraceCheckUtils]: 14: Hoare triple {771#false} call __VERIFIER_assert((if 0 == #t~mem3 % 4294967296 then 1 else 0)); {771#false} is VALID [2022-04-15 06:07:25,474 INFO L290 TraceCheckUtils]: 15: Hoare triple {771#false} ~cond := #in~cond; {771#false} is VALID [2022-04-15 06:07:25,474 INFO L290 TraceCheckUtils]: 16: Hoare triple {771#false} assume 0 == ~cond; {771#false} is VALID [2022-04-15 06:07:25,475 INFO L290 TraceCheckUtils]: 17: Hoare triple {771#false} assume !false; {771#false} is VALID [2022-04-15 06:07:25,475 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 06:07:25,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 06:07:25,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849901211] [2022-04-15 06:07:25,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849901211] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-15 06:07:25,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818165144] [2022-04-15 06:07:25,475 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-15 06:07:25,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 06:07:25,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 06:07:25,478 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-15 06:07:25,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-15 06:07:25,517 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-15 06:07:25,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-15 06:07:25,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 21 conjunts are in the unsatisfiable core [2022-04-15 06:07:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:07:25,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-15 06:07:25,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2022-04-15 06:07:25,613 INFO L356 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-04-15 06:07:25,613 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2022-04-15 06:07:25,712 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-04-15 06:07:25,749 INFO L272 TraceCheckUtils]: 0: Hoare triple {770#true} call ULTIMATE.init(); {770#true} is VALID [2022-04-15 06:07:25,749 INFO L290 TraceCheckUtils]: 1: Hoare triple {770#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {770#true} is VALID [2022-04-15 06:07:25,749 INFO L290 TraceCheckUtils]: 2: Hoare triple {770#true} assume true; {770#true} is VALID [2022-04-15 06:07:25,749 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {770#true} {770#true} #67#return; {770#true} is VALID [2022-04-15 06:07:25,749 INFO L272 TraceCheckUtils]: 4: Hoare triple {770#true} call #t~ret5 := main(); {770#true} is VALID [2022-04-15 06:07:25,750 INFO L290 TraceCheckUtils]: 5: Hoare triple {770#true} call ~#array~0.base, ~#array~0.offset := #Ultimate.allocOnStack(4000);havoc ~index~0;~index~0 := 0; {775#(= main_~index~0 0)} is VALID [2022-04-15 06:07:25,751 INFO L290 TraceCheckUtils]: 6: Hoare triple {775#(= main_~index~0 0)} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {800#(and (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} is VALID [2022-04-15 06:07:25,751 INFO L290 TraceCheckUtils]: 7: Hoare triple {800#(and (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {804#(and (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0) (= main_~index~0 1))} is VALID [2022-04-15 06:07:25,752 INFO L290 TraceCheckUtils]: 8: Hoare triple {804#(and (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0) (= main_~index~0 1))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {808#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} is VALID [2022-04-15 06:07:25,752 INFO L290 TraceCheckUtils]: 9: Hoare triple {808#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {808#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} is VALID [2022-04-15 06:07:25,753 INFO L290 TraceCheckUtils]: 10: Hoare triple {808#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} assume !(~index~0 % 4294967296 < 1000); {808#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} is VALID [2022-04-15 06:07:25,754 INFO L290 TraceCheckUtils]: 11: Hoare triple {808#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} ~index~0 := 0; {800#(and (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} is VALID [2022-04-15 06:07:25,754 INFO L290 TraceCheckUtils]: 12: Hoare triple {800#(and (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} assume !!(~index~0 % 4294967296 < 1000); {800#(and (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} is VALID [2022-04-15 06:07:25,755 INFO L290 TraceCheckUtils]: 13: Hoare triple {800#(and (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} assume 0 == (if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2) % 4294967296;call #t~mem3 := read~int(~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {824#(= |main_#t~mem3| 0)} is VALID [2022-04-15 06:07:25,757 INFO L272 TraceCheckUtils]: 14: Hoare triple {824#(= |main_#t~mem3| 0)} call __VERIFIER_assert((if 0 == #t~mem3 % 4294967296 then 1 else 0)); {828#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-15 06:07:25,758 INFO L290 TraceCheckUtils]: 15: Hoare triple {828#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {832#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-15 06:07:25,771 INFO L290 TraceCheckUtils]: 16: Hoare triple {832#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {771#false} is VALID [2022-04-15 06:07:25,771 INFO L290 TraceCheckUtils]: 17: Hoare triple {771#false} assume !false; {771#false} is VALID [2022-04-15 06:07:25,772 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 06:07:25,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-15 06:07:26,536 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2022-04-15 06:07:26,580 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 286 treesize of output 278 [2022-04-15 06:07:26,833 INFO L290 TraceCheckUtils]: 17: Hoare triple {771#false} assume !false; {771#false} is VALID [2022-04-15 06:07:26,836 INFO L290 TraceCheckUtils]: 16: Hoare triple {832#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {771#false} is VALID [2022-04-15 06:07:26,837 INFO L290 TraceCheckUtils]: 15: Hoare triple {828#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {832#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-15 06:07:26,837 INFO L272 TraceCheckUtils]: 14: Hoare triple {848#(= (mod |main_#t~mem3| 4294967296) 0)} call __VERIFIER_assert((if 0 == #t~mem3 % 4294967296 then 1 else 0)); {828#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-15 06:07:26,840 INFO L290 TraceCheckUtils]: 13: Hoare triple {852#(or (and (or (<= (div (- (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)))) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (not (<= (mod main_~index~0 4294967296) 2147483647))) (or (<= (div (- (select (select |#memory_int| |main_~#array~0.base|) (+ (- 17179869184) |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)))) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (- 17179869184) |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (<= (mod main_~index~0 4294967296) 2147483647))) (not (<= (mod main_~index~0 2) 0)))} assume 0 == (if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2) % 4294967296;call #t~mem3 := read~int(~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {848#(= (mod |main_#t~mem3| 4294967296) 0)} is VALID [2022-04-15 06:07:26,842 INFO L290 TraceCheckUtils]: 12: Hoare triple {856#(or (<= (div (* (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 1)) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (not (<= (mod main_~index~0 2) 0)) (not (< (mod main_~index~0 4294967296) 1000)))} assume !!(~index~0 % 4294967296 < 1000); {852#(or (and (or (<= (div (- (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)))) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (not (<= (mod main_~index~0 4294967296) 2147483647))) (or (<= (div (- (select (select |#memory_int| |main_~#array~0.base|) (+ (- 17179869184) |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)))) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (- 17179869184) |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (<= (mod main_~index~0 4294967296) 2147483647))) (not (<= (mod main_~index~0 2) 0)))} is VALID [2022-04-15 06:07:26,842 INFO L290 TraceCheckUtils]: 11: Hoare triple {860#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} ~index~0 := 0; {856#(or (<= (div (* (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 1)) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (not (<= (mod main_~index~0 2) 0)) (not (< (mod main_~index~0 4294967296) 1000)))} is VALID [2022-04-15 06:07:26,843 INFO L290 TraceCheckUtils]: 10: Hoare triple {860#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} assume !(~index~0 % 4294967296 < 1000); {860#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} is VALID [2022-04-15 06:07:26,844 INFO L290 TraceCheckUtils]: 9: Hoare triple {860#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {860#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} is VALID [2022-04-15 06:07:26,847 INFO L290 TraceCheckUtils]: 8: Hoare triple {870#(or (forall ((v_ArrVal_29 Int)) (<= (div (* (- 1) (select (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_29) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (select (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_29) |main_~#array~0.offset|) (- 4294967296)) 4294967296) 1))) (not (< (mod main_~index~0 4294967296) 1000)))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {860#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} is VALID [2022-04-15 06:07:26,850 INFO L290 TraceCheckUtils]: 7: Hoare triple {874#(or (forall ((v_ArrVal_29 Int)) (<= (div (* (- 1) (select (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_29) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (select (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_29) |main_~#array~0.offset|) (- 4294967296)) 4294967296) 1))) (not (< (mod (+ main_~index~0 1) 4294967296) 1000)))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {870#(or (forall ((v_ArrVal_29 Int)) (<= (div (* (- 1) (select (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_29) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (select (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_29) |main_~#array~0.offset|) (- 4294967296)) 4294967296) 1))) (not (< (mod main_~index~0 4294967296) 1000)))} is VALID [2022-04-15 06:07:26,855 INFO L290 TraceCheckUtils]: 6: Hoare triple {878#(or (not (< (mod (+ main_~index~0 1) 4294967296) 1000)) (= (* (mod main_~index~0 4294967296) 4) 0) (not (< (mod main_~index~0 4294967296) 1000)))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {874#(or (forall ((v_ArrVal_29 Int)) (<= (div (* (- 1) (select (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_29) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (select (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_29) |main_~#array~0.offset|) (- 4294967296)) 4294967296) 1))) (not (< (mod (+ main_~index~0 1) 4294967296) 1000)))} is VALID [2022-04-15 06:07:26,855 INFO L290 TraceCheckUtils]: 5: Hoare triple {770#true} call ~#array~0.base, ~#array~0.offset := #Ultimate.allocOnStack(4000);havoc ~index~0;~index~0 := 0; {878#(or (not (< (mod (+ main_~index~0 1) 4294967296) 1000)) (= (* (mod main_~index~0 4294967296) 4) 0) (not (< (mod main_~index~0 4294967296) 1000)))} is VALID [2022-04-15 06:07:26,856 INFO L272 TraceCheckUtils]: 4: Hoare triple {770#true} call #t~ret5 := main(); {770#true} is VALID [2022-04-15 06:07:26,856 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {770#true} {770#true} #67#return; {770#true} is VALID [2022-04-15 06:07:26,856 INFO L290 TraceCheckUtils]: 2: Hoare triple {770#true} assume true; {770#true} is VALID [2022-04-15 06:07:26,856 INFO L290 TraceCheckUtils]: 1: Hoare triple {770#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {770#true} is VALID [2022-04-15 06:07:26,856 INFO L272 TraceCheckUtils]: 0: Hoare triple {770#true} call ULTIMATE.init(); {770#true} is VALID [2022-04-15 06:07:26,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 06:07:26,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818165144] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-15 06:07:26,857 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-15 06:07:26,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 11] total 19 [2022-04-15 06:07:26,857 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 06:07:26,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1019157128] [2022-04-15 06:07:26,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1019157128] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 06:07:26,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 06:07:26,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-15 06:07:26,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245389539] [2022-04-15 06:07:26,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 06:07:26,858 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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 18 [2022-04-15 06:07:26,858 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 06:07:26,858 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-04-15 06:07:26,873 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:07:26,873 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-15 06:07:26,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 06:07:26,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-15 06:07:26,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-04-15 06:07:26,874 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-04-15 06:07:27,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:07:27,188 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions. [2022-04-15 06:07:27,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-15 06:07:27,189 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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 18 [2022-04-15 06:07:27,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 06:07:27,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-04-15 06:07:27,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 68 transitions. [2022-04-15 06:07:27,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-04-15 06:07:27,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 68 transitions. [2022-04-15 06:07:27,192 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 68 transitions. [2022-04-15 06:07:27,250 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:07:27,251 INFO L225 Difference]: With dead ends: 59 [2022-04-15 06:07:27,251 INFO L226 Difference]: Without dead ends: 43 [2022-04-15 06:07:27,251 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2022-04-15 06:07:27,252 INFO L913 BasicCegarLoop]: 17 mSDtfsCounter, 41 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-15 06:07:27,252 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 34 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-15 06:07:27,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-04-15 06:07:27,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 34. [2022-04-15 06:07:27,277 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 06:07:27,277 INFO L82 GeneralOperation]: Start isEquivalent. First operand 43 states. Second operand has 34 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-15 06:07:27,278 INFO L74 IsIncluded]: Start isIncluded. First operand 43 states. Second operand has 34 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-15 06:07:27,278 INFO L87 Difference]: Start difference. First operand 43 states. Second operand has 34 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-15 06:07:27,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:07:27,279 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2022-04-15 06:07:27,279 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2022-04-15 06:07:27,280 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 06:07:27,280 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 06:07:27,280 INFO L74 IsIncluded]: Start isIncluded. First operand has 34 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 43 states. [2022-04-15 06:07:27,280 INFO L87 Difference]: Start difference. First operand has 34 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 43 states. [2022-04-15 06:07:27,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:07:27,282 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2022-04-15 06:07:27,282 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2022-04-15 06:07:27,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 06:07:27,282 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 06:07:27,282 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 06:07:27,282 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 06:07:27,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-15 06:07:27,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2022-04-15 06:07:27,285 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 18 [2022-04-15 06:07:27,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 06:07:27,285 INFO L478 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2022-04-15 06:07:27,285 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-04-15 06:07:27,285 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 34 states and 38 transitions. [2022-04-15 06:07:27,321 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:07:27,321 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2022-04-15 06:07:27,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-04-15 06:07:27,321 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 06:07:27,321 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 06:07:27,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-15 06:07:27,547 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-04-15 06:07:27,548 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 06:07:27,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 06:07:27,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1363238708, now seen corresponding path program 5 times [2022-04-15 06:07:27,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 06:07:27,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [71429574] [2022-04-15 06:07:27,557 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-04-15 06:07:27,557 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-04-15 06:07:27,557 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-15 06:07:27,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1363238708, now seen corresponding path program 6 times [2022-04-15 06:07:27,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 06:07:27,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638370529] [2022-04-15 06:07:27,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 06:07:27,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 06:07:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:07:27,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 06:07:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:07:27,664 INFO L290 TraceCheckUtils]: 0: Hoare triple {1186#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {1177#true} is VALID [2022-04-15 06:07:27,664 INFO L290 TraceCheckUtils]: 1: Hoare triple {1177#true} assume true; {1177#true} is VALID [2022-04-15 06:07:27,665 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {1177#true} {1177#true} #67#return; {1177#true} is VALID [2022-04-15 06:07:27,665 INFO L272 TraceCheckUtils]: 0: Hoare triple {1177#true} call ULTIMATE.init(); {1186#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 06:07:27,665 INFO L290 TraceCheckUtils]: 1: Hoare triple {1186#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {1177#true} is VALID [2022-04-15 06:07:27,665 INFO L290 TraceCheckUtils]: 2: Hoare triple {1177#true} assume true; {1177#true} is VALID [2022-04-15 06:07:27,665 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1177#true} {1177#true} #67#return; {1177#true} is VALID [2022-04-15 06:07:27,666 INFO L272 TraceCheckUtils]: 4: Hoare triple {1177#true} call #t~ret5 := main(); {1177#true} is VALID [2022-04-15 06:07:27,666 INFO L290 TraceCheckUtils]: 5: Hoare triple {1177#true} call ~#array~0.base, ~#array~0.offset := #Ultimate.allocOnStack(4000);havoc ~index~0;~index~0 := 0; {1182#(= main_~index~0 0)} is VALID [2022-04-15 06:07:27,666 INFO L290 TraceCheckUtils]: 6: Hoare triple {1182#(= main_~index~0 0)} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1182#(= main_~index~0 0)} is VALID [2022-04-15 06:07:27,667 INFO L290 TraceCheckUtils]: 7: Hoare triple {1182#(= main_~index~0 0)} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1183#(and (<= main_~index~0 1) (<= 1 main_~index~0))} is VALID [2022-04-15 06:07:27,667 INFO L290 TraceCheckUtils]: 8: Hoare triple {1183#(and (<= main_~index~0 1) (<= 1 main_~index~0))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1183#(and (<= main_~index~0 1) (<= 1 main_~index~0))} is VALID [2022-04-15 06:07:27,668 INFO L290 TraceCheckUtils]: 9: Hoare triple {1183#(and (<= main_~index~0 1) (<= 1 main_~index~0))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1184#(and (<= main_~index~0 2) (<= 2 main_~index~0))} is VALID [2022-04-15 06:07:27,668 INFO L290 TraceCheckUtils]: 10: Hoare triple {1184#(and (<= main_~index~0 2) (<= 2 main_~index~0))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1184#(and (<= main_~index~0 2) (<= 2 main_~index~0))} is VALID [2022-04-15 06:07:27,669 INFO L290 TraceCheckUtils]: 11: Hoare triple {1184#(and (<= main_~index~0 2) (<= 2 main_~index~0))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1185#(and (<= main_~index~0 3) (not (<= (+ (div main_~index~0 4294967296) 1) 0)))} is VALID [2022-04-15 06:07:27,669 INFO L290 TraceCheckUtils]: 12: Hoare triple {1185#(and (<= main_~index~0 3) (not (<= (+ (div main_~index~0 4294967296) 1) 0)))} assume !(~index~0 % 4294967296 < 1000); {1178#false} is VALID [2022-04-15 06:07:27,669 INFO L290 TraceCheckUtils]: 13: Hoare triple {1178#false} ~index~0 := 0; {1178#false} is VALID [2022-04-15 06:07:27,669 INFO L290 TraceCheckUtils]: 14: Hoare triple {1178#false} assume !!(~index~0 % 4294967296 < 1000); {1178#false} is VALID [2022-04-15 06:07:27,670 INFO L290 TraceCheckUtils]: 15: Hoare triple {1178#false} assume 0 == (if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2) % 4294967296;call #t~mem3 := read~int(~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1178#false} is VALID [2022-04-15 06:07:27,670 INFO L272 TraceCheckUtils]: 16: Hoare triple {1178#false} call __VERIFIER_assert((if 0 == #t~mem3 % 4294967296 then 1 else 0)); {1178#false} is VALID [2022-04-15 06:07:27,670 INFO L290 TraceCheckUtils]: 17: Hoare triple {1178#false} ~cond := #in~cond; {1178#false} is VALID [2022-04-15 06:07:27,670 INFO L290 TraceCheckUtils]: 18: Hoare triple {1178#false} assume 0 == ~cond; {1178#false} is VALID [2022-04-15 06:07:27,670 INFO L290 TraceCheckUtils]: 19: Hoare triple {1178#false} assume !false; {1178#false} is VALID [2022-04-15 06:07:27,670 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 06:07:27,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 06:07:27,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638370529] [2022-04-15 06:07:27,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638370529] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-15 06:07:27,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635953530] [2022-04-15 06:07:27,671 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-15 06:07:27,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 06:07:27,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 06:07:27,672 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-15 06:07:27,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-15 06:07:27,758 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-04-15 06:07:27,758 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-15 06:07:27,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 28 conjunts are in the unsatisfiable core [2022-04-15 06:07:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:07:27,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-15 06:07:27,811 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2022-04-15 06:07:27,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-15 06:07:27,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2022-04-15 06:07:27,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-15 06:07:27,947 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-04-15 06:07:28,052 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-04-15 06:07:28,107 INFO L272 TraceCheckUtils]: 0: Hoare triple {1177#true} call ULTIMATE.init(); {1177#true} is VALID [2022-04-15 06:07:28,108 INFO L290 TraceCheckUtils]: 1: Hoare triple {1177#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {1177#true} is VALID [2022-04-15 06:07:28,108 INFO L290 TraceCheckUtils]: 2: Hoare triple {1177#true} assume true; {1177#true} is VALID [2022-04-15 06:07:28,108 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1177#true} {1177#true} #67#return; {1177#true} is VALID [2022-04-15 06:07:28,108 INFO L272 TraceCheckUtils]: 4: Hoare triple {1177#true} call #t~ret5 := main(); {1177#true} is VALID [2022-04-15 06:07:28,109 INFO L290 TraceCheckUtils]: 5: Hoare triple {1177#true} call ~#array~0.base, ~#array~0.offset := #Ultimate.allocOnStack(4000);havoc ~index~0;~index~0 := 0; {1205#(and (= |main_~#array~0.offset| 0) (= main_~index~0 0))} is VALID [2022-04-15 06:07:28,109 INFO L290 TraceCheckUtils]: 6: Hoare triple {1205#(and (= |main_~#array~0.offset| 0) (= main_~index~0 0))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1209#(and (= |main_~#array~0.offset| 0) (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} is VALID [2022-04-15 06:07:28,110 INFO L290 TraceCheckUtils]: 7: Hoare triple {1209#(and (= |main_~#array~0.offset| 0) (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1213#(and (= (mod (+ main_~index~0 1) 2) (select (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ 4294967295 main_~index~0) 4294967296) 4) |main_~#array~0.offset|))) (= |main_~#array~0.offset| 0) (= (+ (- 1) main_~index~0) 0))} is VALID [2022-04-15 06:07:28,111 INFO L290 TraceCheckUtils]: 8: Hoare triple {1213#(and (= (mod (+ main_~index~0 1) 2) (select (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ 4294967295 main_~index~0) 4294967296) 4) |main_~#array~0.offset|))) (= |main_~#array~0.offset| 0) (= (+ (- 1) main_~index~0) 0))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1213#(and (= (mod (+ main_~index~0 1) 2) (select (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ 4294967295 main_~index~0) 4294967296) 4) |main_~#array~0.offset|))) (= |main_~#array~0.offset| 0) (= (+ (- 1) main_~index~0) 0))} is VALID [2022-04-15 06:07:28,112 INFO L290 TraceCheckUtils]: 9: Hoare triple {1213#(and (= (mod (+ main_~index~0 1) 2) (select (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ 4294967295 main_~index~0) 4294967296) 4) |main_~#array~0.offset|))) (= |main_~#array~0.offset| 0) (= (+ (- 1) main_~index~0) 0))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1220#(and (= 2 main_~index~0) (= |main_~#array~0.offset| 0) (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0))} is VALID [2022-04-15 06:07:28,113 INFO L290 TraceCheckUtils]: 10: Hoare triple {1220#(and (= 2 main_~index~0) (= |main_~#array~0.offset| 0) (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1224#(and (= |main_~#array~0.offset| 0) (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0))} is VALID [2022-04-15 06:07:28,113 INFO L290 TraceCheckUtils]: 11: Hoare triple {1224#(and (= |main_~#array~0.offset| 0) (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1224#(and (= |main_~#array~0.offset| 0) (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0))} is VALID [2022-04-15 06:07:28,114 INFO L290 TraceCheckUtils]: 12: Hoare triple {1224#(and (= |main_~#array~0.offset| 0) (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0))} assume !(~index~0 % 4294967296 < 1000); {1224#(and (= |main_~#array~0.offset| 0) (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0))} is VALID [2022-04-15 06:07:28,115 INFO L290 TraceCheckUtils]: 13: Hoare triple {1224#(and (= |main_~#array~0.offset| 0) (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0))} ~index~0 := 0; {1209#(and (= |main_~#array~0.offset| 0) (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} is VALID [2022-04-15 06:07:28,116 INFO L290 TraceCheckUtils]: 14: Hoare triple {1209#(and (= |main_~#array~0.offset| 0) (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} assume !!(~index~0 % 4294967296 < 1000); {1209#(and (= |main_~#array~0.offset| 0) (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} is VALID [2022-04-15 06:07:28,117 INFO L290 TraceCheckUtils]: 15: Hoare triple {1209#(and (= |main_~#array~0.offset| 0) (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} assume 0 == (if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2) % 4294967296;call #t~mem3 := read~int(~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1240#(= |main_#t~mem3| 0)} is VALID [2022-04-15 06:07:28,118 INFO L272 TraceCheckUtils]: 16: Hoare triple {1240#(= |main_#t~mem3| 0)} call __VERIFIER_assert((if 0 == #t~mem3 % 4294967296 then 1 else 0)); {1244#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-15 06:07:28,118 INFO L290 TraceCheckUtils]: 17: Hoare triple {1244#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {1248#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-15 06:07:28,118 INFO L290 TraceCheckUtils]: 18: Hoare triple {1248#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {1178#false} is VALID [2022-04-15 06:07:28,118 INFO L290 TraceCheckUtils]: 19: Hoare triple {1178#false} assume !false; {1178#false} is VALID [2022-04-15 06:07:28,119 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 06:07:28,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-15 06:07:29,300 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 83 [2022-04-15 06:07:29,336 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 610 treesize of output 602 [2022-04-15 06:07:32,054 INFO L290 TraceCheckUtils]: 19: Hoare triple {1178#false} assume !false; {1178#false} is VALID [2022-04-15 06:07:32,055 INFO L290 TraceCheckUtils]: 18: Hoare triple {1248#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {1178#false} is VALID [2022-04-15 06:07:32,055 INFO L290 TraceCheckUtils]: 17: Hoare triple {1244#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {1248#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-15 06:07:32,059 INFO L272 TraceCheckUtils]: 16: Hoare triple {1264#(= (mod |main_#t~mem3| 4294967296) 0)} call __VERIFIER_assert((if 0 == #t~mem3 % 4294967296 then 1 else 0)); {1244#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-15 06:07:32,063 INFO L290 TraceCheckUtils]: 15: Hoare triple {1268#(or (and (or (<= (div (- (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)))) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (not (<= (mod main_~index~0 4294967296) 2147483647))) (or (<= (div (- (select (select |#memory_int| |main_~#array~0.base|) (+ (- 17179869184) |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)))) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (- 17179869184) |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (<= (mod main_~index~0 4294967296) 2147483647))) (not (<= (mod main_~index~0 2) 0)))} assume 0 == (if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2) % 4294967296;call #t~mem3 := read~int(~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1264#(= (mod |main_#t~mem3| 4294967296) 0)} is VALID [2022-04-15 06:07:32,064 INFO L290 TraceCheckUtils]: 14: Hoare triple {1272#(or (<= (div (* (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 1)) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (not (<= (mod main_~index~0 2) 0)) (not (< (mod main_~index~0 4294967296) 1000)))} assume !!(~index~0 % 4294967296 < 1000); {1268#(or (and (or (<= (div (- (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)))) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (not (<= (mod main_~index~0 4294967296) 2147483647))) (or (<= (div (- (select (select |#memory_int| |main_~#array~0.base|) (+ (- 17179869184) |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)))) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (- 17179869184) |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (<= (mod main_~index~0 4294967296) 2147483647))) (not (<= (mod main_~index~0 2) 0)))} is VALID [2022-04-15 06:07:32,064 INFO L290 TraceCheckUtils]: 13: Hoare triple {1276#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} ~index~0 := 0; {1272#(or (<= (div (* (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 1)) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (not (<= (mod main_~index~0 2) 0)) (not (< (mod main_~index~0 4294967296) 1000)))} is VALID [2022-04-15 06:07:32,065 INFO L290 TraceCheckUtils]: 12: Hoare triple {1276#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} assume !(~index~0 % 4294967296 < 1000); {1276#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} is VALID [2022-04-15 06:07:32,065 INFO L290 TraceCheckUtils]: 11: Hoare triple {1276#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1276#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} is VALID [2022-04-15 06:07:32,067 INFO L290 TraceCheckUtils]: 10: Hoare triple {1286#(or (forall ((v_ArrVal_52 Int)) (<= (div (* (- 1) (select (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_52) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (select (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_52) |main_~#array~0.offset|) (- 4294967296)) 4294967296) 1))) (not (< (mod main_~index~0 4294967296) 1000)))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1276#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} is VALID [2022-04-15 06:07:32,070 INFO L290 TraceCheckUtils]: 9: Hoare triple {1290#(or (forall ((v_ArrVal_52 Int)) (<= (div (* (- 1) (select (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_52) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (- 4294967296) (select (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_52) |main_~#array~0.offset|)) 4294967296) 1))) (not (< (mod (+ main_~index~0 1) 4294967296) 1000)))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1286#(or (forall ((v_ArrVal_52 Int)) (<= (div (* (- 1) (select (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_52) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (select (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_52) |main_~#array~0.offset|) (- 4294967296)) 4294967296) 1))) (not (< (mod main_~index~0 4294967296) 1000)))} is VALID [2022-04-15 06:07:32,074 INFO L290 TraceCheckUtils]: 8: Hoare triple {1294#(or (forall ((v_ArrVal_50 Int) (v_ArrVal_52 Int)) (<= (div (* (- 1) (select (store (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_50) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_52) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (select (store (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_50) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_52) |main_~#array~0.offset|) (- 4294967296)) 4294967296) 1))) (not (< (mod (+ main_~index~0 1) 4294967296) 1000)) (not (< (mod main_~index~0 4294967296) 1000)))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1290#(or (forall ((v_ArrVal_52 Int)) (<= (div (* (- 1) (select (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_52) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (- 4294967296) (select (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_52) |main_~#array~0.offset|)) 4294967296) 1))) (not (< (mod (+ main_~index~0 1) 4294967296) 1000)))} is VALID [2022-04-15 06:07:32,078 INFO L290 TraceCheckUtils]: 7: Hoare triple {1298#(or (not (< (mod (+ main_~index~0 1) 4294967296) 1000)) (forall ((v_ArrVal_50 Int) (v_ArrVal_52 Int)) (<= (div (* (- 1) (select (store (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_50) (+ |main_~#array~0.offset| (* (mod (+ 2 main_~index~0) 4294967296) 4)) v_ArrVal_52) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (- 4294967296) (select (store (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_50) (+ |main_~#array~0.offset| (* (mod (+ 2 main_~index~0) 4294967296) 4)) v_ArrVal_52) |main_~#array~0.offset|)) 4294967296) 1))) (not (< (mod (+ 2 main_~index~0) 4294967296) 1000)))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1294#(or (forall ((v_ArrVal_50 Int) (v_ArrVal_52 Int)) (<= (div (* (- 1) (select (store (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_50) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_52) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (select (store (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_50) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_52) |main_~#array~0.offset|) (- 4294967296)) 4294967296) 1))) (not (< (mod (+ main_~index~0 1) 4294967296) 1000)) (not (< (mod main_~index~0 4294967296) 1000)))} is VALID [2022-04-15 06:07:32,080 INFO L290 TraceCheckUtils]: 6: Hoare triple {1302#(or (<= 1000 (mod main_~index~0 4294967296)) (<= 1000 (mod (+ 2 main_~index~0) 4294967296)) (= (* (mod main_~index~0 4294967296) 4) 0))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1298#(or (not (< (mod (+ main_~index~0 1) 4294967296) 1000)) (forall ((v_ArrVal_50 Int) (v_ArrVal_52 Int)) (<= (div (* (- 1) (select (store (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_50) (+ |main_~#array~0.offset| (* (mod (+ 2 main_~index~0) 4294967296) 4)) v_ArrVal_52) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (- 4294967296) (select (store (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_50) (+ |main_~#array~0.offset| (* (mod (+ 2 main_~index~0) 4294967296) 4)) v_ArrVal_52) |main_~#array~0.offset|)) 4294967296) 1))) (not (< (mod (+ 2 main_~index~0) 4294967296) 1000)))} is VALID [2022-04-15 06:07:32,081 INFO L290 TraceCheckUtils]: 5: Hoare triple {1177#true} call ~#array~0.base, ~#array~0.offset := #Ultimate.allocOnStack(4000);havoc ~index~0;~index~0 := 0; {1302#(or (<= 1000 (mod main_~index~0 4294967296)) (<= 1000 (mod (+ 2 main_~index~0) 4294967296)) (= (* (mod main_~index~0 4294967296) 4) 0))} is VALID [2022-04-15 06:07:32,081 INFO L272 TraceCheckUtils]: 4: Hoare triple {1177#true} call #t~ret5 := main(); {1177#true} is VALID [2022-04-15 06:07:32,081 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1177#true} {1177#true} #67#return; {1177#true} is VALID [2022-04-15 06:07:32,081 INFO L290 TraceCheckUtils]: 2: Hoare triple {1177#true} assume true; {1177#true} is VALID [2022-04-15 06:07:32,081 INFO L290 TraceCheckUtils]: 1: Hoare triple {1177#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {1177#true} is VALID [2022-04-15 06:07:32,081 INFO L272 TraceCheckUtils]: 0: Hoare triple {1177#true} call ULTIMATE.init(); {1177#true} is VALID [2022-04-15 06:07:32,082 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 06:07:32,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635953530] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-15 06:07:32,082 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-15 06:07:32,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 13] total 24 [2022-04-15 06:07:32,082 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 06:07:32,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [71429574] [2022-04-15 06:07:32,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [71429574] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 06:07:32,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 06:07:32,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-15 06:07:32,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949716815] [2022-04-15 06:07:32,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 06:07:32,083 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 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 20 [2022-04-15 06:07:32,083 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 06:07:32,083 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-04-15 06:07:32,099 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:07:32,099 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-15 06:07:32,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 06:07:32,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-15 06:07:32,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2022-04-15 06:07:32,100 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-04-15 06:07:32,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:07:32,524 INFO L93 Difference]: Finished difference Result 73 states and 87 transitions. [2022-04-15 06:07:32,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-15 06:07:32,525 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 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 20 [2022-04-15 06:07:32,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 06:07:32,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-04-15 06:07:32,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 79 transitions. [2022-04-15 06:07:32,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-04-15 06:07:32,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 79 transitions. [2022-04-15 06:07:32,528 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 79 transitions. [2022-04-15 06:07:32,587 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 79 edges. 79 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:07:32,588 INFO L225 Difference]: With dead ends: 73 [2022-04-15 06:07:32,588 INFO L226 Difference]: Without dead ends: 52 [2022-04-15 06:07:32,588 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2022-04-15 06:07:32,589 INFO L913 BasicCegarLoop]: 19 mSDtfsCounter, 52 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-15 06:07:32,589 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 41 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-15 06:07:32,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-04-15 06:07:32,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 41. [2022-04-15 06:07:32,629 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 06:07:32,629 INFO L82 GeneralOperation]: Start isEquivalent. First operand 52 states. Second operand has 41 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 06:07:32,629 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand has 41 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 06:07:32,630 INFO L87 Difference]: Start difference. First operand 52 states. Second operand has 41 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 06:07:32,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:07:32,631 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2022-04-15 06:07:32,631 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2022-04-15 06:07:32,632 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 06:07:32,632 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 06:07:32,632 INFO L74 IsIncluded]: Start isIncluded. First operand has 41 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand 52 states. [2022-04-15 06:07:32,632 INFO L87 Difference]: Start difference. First operand has 41 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand 52 states. [2022-04-15 06:07:32,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:07:32,638 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2022-04-15 06:07:32,638 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2022-04-15 06:07:32,639 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 06:07:32,639 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 06:07:32,639 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 06:07:32,639 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 06:07:32,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 06:07:32,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2022-04-15 06:07:32,640 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 20 [2022-04-15 06:07:32,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 06:07:32,641 INFO L478 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2022-04-15 06:07:32,641 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-04-15 06:07:32,641 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 41 states and 46 transitions. [2022-04-15 06:07:32,686 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:07:32,687 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2022-04-15 06:07:32,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-15 06:07:32,687 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 06:07:32,687 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 06:07:32,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-15 06:07:32,887 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 06:07:32,888 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 06:07:32,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 06:07:32,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1815390674, now seen corresponding path program 7 times [2022-04-15 06:07:32,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 06:07:32,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [707527258] [2022-04-15 06:07:32,898 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-04-15 06:07:32,898 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-04-15 06:07:32,898 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-15 06:07:32,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1815390674, now seen corresponding path program 8 times [2022-04-15 06:07:32,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 06:07:32,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044258341] [2022-04-15 06:07:32,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 06:07:32,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 06:07:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:07:32,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 06:07:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:07:32,998 INFO L290 TraceCheckUtils]: 0: Hoare triple {1673#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {1663#true} is VALID [2022-04-15 06:07:32,998 INFO L290 TraceCheckUtils]: 1: Hoare triple {1663#true} assume true; {1663#true} is VALID [2022-04-15 06:07:32,998 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {1663#true} {1663#true} #67#return; {1663#true} is VALID [2022-04-15 06:07:32,999 INFO L272 TraceCheckUtils]: 0: Hoare triple {1663#true} call ULTIMATE.init(); {1673#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 06:07:32,999 INFO L290 TraceCheckUtils]: 1: Hoare triple {1673#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {1663#true} is VALID [2022-04-15 06:07:32,999 INFO L290 TraceCheckUtils]: 2: Hoare triple {1663#true} assume true; {1663#true} is VALID [2022-04-15 06:07:32,999 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1663#true} {1663#true} #67#return; {1663#true} is VALID [2022-04-15 06:07:32,999 INFO L272 TraceCheckUtils]: 4: Hoare triple {1663#true} call #t~ret5 := main(); {1663#true} is VALID [2022-04-15 06:07:33,000 INFO L290 TraceCheckUtils]: 5: Hoare triple {1663#true} call ~#array~0.base, ~#array~0.offset := #Ultimate.allocOnStack(4000);havoc ~index~0;~index~0 := 0; {1668#(= main_~index~0 0)} is VALID [2022-04-15 06:07:33,000 INFO L290 TraceCheckUtils]: 6: Hoare triple {1668#(= main_~index~0 0)} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1668#(= main_~index~0 0)} is VALID [2022-04-15 06:07:33,000 INFO L290 TraceCheckUtils]: 7: Hoare triple {1668#(= main_~index~0 0)} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1669#(and (<= main_~index~0 1) (<= 1 main_~index~0))} is VALID [2022-04-15 06:07:33,001 INFO L290 TraceCheckUtils]: 8: Hoare triple {1669#(and (<= main_~index~0 1) (<= 1 main_~index~0))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1669#(and (<= main_~index~0 1) (<= 1 main_~index~0))} is VALID [2022-04-15 06:07:33,001 INFO L290 TraceCheckUtils]: 9: Hoare triple {1669#(and (<= main_~index~0 1) (<= 1 main_~index~0))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1670#(and (<= main_~index~0 2) (<= 2 main_~index~0))} is VALID [2022-04-15 06:07:33,002 INFO L290 TraceCheckUtils]: 10: Hoare triple {1670#(and (<= main_~index~0 2) (<= 2 main_~index~0))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1670#(and (<= main_~index~0 2) (<= 2 main_~index~0))} is VALID [2022-04-15 06:07:33,002 INFO L290 TraceCheckUtils]: 11: Hoare triple {1670#(and (<= main_~index~0 2) (<= 2 main_~index~0))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1671#(and (<= 3 main_~index~0) (<= main_~index~0 3))} is VALID [2022-04-15 06:07:33,002 INFO L290 TraceCheckUtils]: 12: Hoare triple {1671#(and (<= 3 main_~index~0) (<= main_~index~0 3))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1671#(and (<= 3 main_~index~0) (<= main_~index~0 3))} is VALID [2022-04-15 06:07:33,003 INFO L290 TraceCheckUtils]: 13: Hoare triple {1671#(and (<= 3 main_~index~0) (<= main_~index~0 3))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1672#(and (not (<= (+ (div main_~index~0 4294967296) 1) 0)) (<= main_~index~0 4))} is VALID [2022-04-15 06:07:33,003 INFO L290 TraceCheckUtils]: 14: Hoare triple {1672#(and (not (<= (+ (div main_~index~0 4294967296) 1) 0)) (<= main_~index~0 4))} assume !(~index~0 % 4294967296 < 1000); {1664#false} is VALID [2022-04-15 06:07:33,003 INFO L290 TraceCheckUtils]: 15: Hoare triple {1664#false} ~index~0 := 0; {1664#false} is VALID [2022-04-15 06:07:33,004 INFO L290 TraceCheckUtils]: 16: Hoare triple {1664#false} assume !!(~index~0 % 4294967296 < 1000); {1664#false} is VALID [2022-04-15 06:07:33,014 INFO L290 TraceCheckUtils]: 17: Hoare triple {1664#false} assume 0 == (if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2) % 4294967296;call #t~mem3 := read~int(~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1664#false} is VALID [2022-04-15 06:07:33,015 INFO L272 TraceCheckUtils]: 18: Hoare triple {1664#false} call __VERIFIER_assert((if 0 == #t~mem3 % 4294967296 then 1 else 0)); {1664#false} is VALID [2022-04-15 06:07:33,015 INFO L290 TraceCheckUtils]: 19: Hoare triple {1664#false} ~cond := #in~cond; {1664#false} is VALID [2022-04-15 06:07:33,015 INFO L290 TraceCheckUtils]: 20: Hoare triple {1664#false} assume 0 == ~cond; {1664#false} is VALID [2022-04-15 06:07:33,015 INFO L290 TraceCheckUtils]: 21: Hoare triple {1664#false} assume !false; {1664#false} is VALID [2022-04-15 06:07:33,015 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 06:07:33,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 06:07:33,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044258341] [2022-04-15 06:07:33,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044258341] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-15 06:07:33,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267302794] [2022-04-15 06:07:33,016 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-15 06:07:33,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 06:07:33,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 06:07:33,018 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-15 06:07:33,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-15 06:07:33,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-15 06:07:33,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-15 06:07:33,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 31 conjunts are in the unsatisfiable core [2022-04-15 06:07:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:07:33,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-15 06:07:33,114 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2022-04-15 06:07:33,166 INFO L356 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-04-15 06:07:33,166 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-04-15 06:07:33,220 INFO L356 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-04-15 06:07:33,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-04-15 06:07:33,267 INFO L356 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-04-15 06:07:33,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2022-04-15 06:07:33,362 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-04-15 06:07:33,409 INFO L272 TraceCheckUtils]: 0: Hoare triple {1663#true} call ULTIMATE.init(); {1663#true} is VALID [2022-04-15 06:07:33,409 INFO L290 TraceCheckUtils]: 1: Hoare triple {1663#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {1663#true} is VALID [2022-04-15 06:07:33,409 INFO L290 TraceCheckUtils]: 2: Hoare triple {1663#true} assume true; {1663#true} is VALID [2022-04-15 06:07:33,409 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1663#true} {1663#true} #67#return; {1663#true} is VALID [2022-04-15 06:07:33,410 INFO L272 TraceCheckUtils]: 4: Hoare triple {1663#true} call #t~ret5 := main(); {1663#true} is VALID [2022-04-15 06:07:33,410 INFO L290 TraceCheckUtils]: 5: Hoare triple {1663#true} call ~#array~0.base, ~#array~0.offset := #Ultimate.allocOnStack(4000);havoc ~index~0;~index~0 := 0; {1668#(= main_~index~0 0)} is VALID [2022-04-15 06:07:33,411 INFO L290 TraceCheckUtils]: 6: Hoare triple {1668#(= main_~index~0 0)} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1695#(and (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} is VALID [2022-04-15 06:07:33,411 INFO L290 TraceCheckUtils]: 7: Hoare triple {1695#(and (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1699#(and (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0) (= main_~index~0 1))} is VALID [2022-04-15 06:07:33,412 INFO L290 TraceCheckUtils]: 8: Hoare triple {1699#(and (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0) (= main_~index~0 1))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1699#(and (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0) (= main_~index~0 1))} is VALID [2022-04-15 06:07:33,412 INFO L290 TraceCheckUtils]: 9: Hoare triple {1699#(and (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0) (= main_~index~0 1))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1706#(and (= 2 main_~index~0) (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0))} is VALID [2022-04-15 06:07:33,413 INFO L290 TraceCheckUtils]: 10: Hoare triple {1706#(and (= 2 main_~index~0) (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1706#(and (= 2 main_~index~0) (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0))} is VALID [2022-04-15 06:07:33,413 INFO L290 TraceCheckUtils]: 11: Hoare triple {1706#(and (= 2 main_~index~0) (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1713#(and (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0) (= 3 main_~index~0))} is VALID [2022-04-15 06:07:33,414 INFO L290 TraceCheckUtils]: 12: Hoare triple {1713#(and (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0) (= 3 main_~index~0))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1717#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} is VALID [2022-04-15 06:07:33,414 INFO L290 TraceCheckUtils]: 13: Hoare triple {1717#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1717#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} is VALID [2022-04-15 06:07:33,414 INFO L290 TraceCheckUtils]: 14: Hoare triple {1717#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} assume !(~index~0 % 4294967296 < 1000); {1717#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} is VALID [2022-04-15 06:07:33,415 INFO L290 TraceCheckUtils]: 15: Hoare triple {1717#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} ~index~0 := 0; {1695#(and (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} is VALID [2022-04-15 06:07:33,415 INFO L290 TraceCheckUtils]: 16: Hoare triple {1695#(and (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} assume !!(~index~0 % 4294967296 < 1000); {1695#(and (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} is VALID [2022-04-15 06:07:33,416 INFO L290 TraceCheckUtils]: 17: Hoare triple {1695#(and (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} assume 0 == (if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2) % 4294967296;call #t~mem3 := read~int(~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1733#(= |main_#t~mem3| 0)} is VALID [2022-04-15 06:07:33,416 INFO L272 TraceCheckUtils]: 18: Hoare triple {1733#(= |main_#t~mem3| 0)} call __VERIFIER_assert((if 0 == #t~mem3 % 4294967296 then 1 else 0)); {1737#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-15 06:07:33,417 INFO L290 TraceCheckUtils]: 19: Hoare triple {1737#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {1741#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-15 06:07:33,418 INFO L290 TraceCheckUtils]: 20: Hoare triple {1741#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {1664#false} is VALID [2022-04-15 06:07:33,418 INFO L290 TraceCheckUtils]: 21: Hoare triple {1664#false} assume !false; {1664#false} is VALID [2022-04-15 06:07:33,418 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 06:07:33,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-15 06:07:35,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 105 [2022-04-15 06:07:35,386 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2438 treesize of output 2422 [2022-04-15 06:07:40,433 INFO L290 TraceCheckUtils]: 21: Hoare triple {1664#false} assume !false; {1664#false} is VALID [2022-04-15 06:07:40,435 INFO L290 TraceCheckUtils]: 20: Hoare triple {1741#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {1664#false} is VALID [2022-04-15 06:07:40,436 INFO L290 TraceCheckUtils]: 19: Hoare triple {1737#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {1741#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-15 06:07:40,439 INFO L272 TraceCheckUtils]: 18: Hoare triple {1757#(= (mod |main_#t~mem3| 4294967296) 0)} call __VERIFIER_assert((if 0 == #t~mem3 % 4294967296 then 1 else 0)); {1737#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-15 06:07:40,442 INFO L290 TraceCheckUtils]: 17: Hoare triple {1761#(or (and (or (<= (div (- (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)))) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (not (<= (mod main_~index~0 4294967296) 2147483647))) (or (<= (div (- (select (select |#memory_int| |main_~#array~0.base|) (+ (- 17179869184) |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)))) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (- 17179869184) |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (<= (mod main_~index~0 4294967296) 2147483647))) (not (<= (mod main_~index~0 2) 0)))} assume 0 == (if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2) % 4294967296;call #t~mem3 := read~int(~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1757#(= (mod |main_#t~mem3| 4294967296) 0)} is VALID [2022-04-15 06:07:40,444 INFO L290 TraceCheckUtils]: 16: Hoare triple {1765#(or (<= (div (* (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 1)) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (not (<= (mod main_~index~0 2) 0)) (not (< (mod main_~index~0 4294967296) 1000)))} assume !!(~index~0 % 4294967296 < 1000); {1761#(or (and (or (<= (div (- (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)))) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (not (<= (mod main_~index~0 4294967296) 2147483647))) (or (<= (div (- (select (select |#memory_int| |main_~#array~0.base|) (+ (- 17179869184) |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)))) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (- 17179869184) |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (<= (mod main_~index~0 4294967296) 2147483647))) (not (<= (mod main_~index~0 2) 0)))} is VALID [2022-04-15 06:07:40,444 INFO L290 TraceCheckUtils]: 15: Hoare triple {1769#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} ~index~0 := 0; {1765#(or (<= (div (* (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 1)) (- 4294967296)) (+ (div (+ (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (- 4294967296)) 4294967296) 1)) (not (<= (mod main_~index~0 2) 0)) (not (< (mod main_~index~0 4294967296) 1000)))} is VALID [2022-04-15 06:07:40,445 INFO L290 TraceCheckUtils]: 14: Hoare triple {1769#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} assume !(~index~0 % 4294967296 < 1000); {1769#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} is VALID [2022-04-15 06:07:40,445 INFO L290 TraceCheckUtils]: 13: Hoare triple {1769#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1769#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} is VALID [2022-04-15 06:07:40,448 INFO L290 TraceCheckUtils]: 12: Hoare triple {1779#(or (forall ((v_ArrVal_80 Int)) (<= (div (* (- 1) (select (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_80) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (- 4294967296) (select (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_80) |main_~#array~0.offset|)) 4294967296) 1))) (not (< (mod main_~index~0 4294967296) 1000)))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1769#(<= (div (* (- 1) (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (- 4294967296)) (+ 1 (div (+ (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) (- 4294967296)) 4294967296)))} is VALID [2022-04-15 06:07:40,451 INFO L290 TraceCheckUtils]: 11: Hoare triple {1783#(or (forall ((v_ArrVal_80 Int)) (<= (div (* (- 1) (select (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_80) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (select (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_80) |main_~#array~0.offset|) (- 4294967296)) 4294967296) 1))) (not (< (mod (+ main_~index~0 1) 4294967296) 1000)))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1779#(or (forall ((v_ArrVal_80 Int)) (<= (div (* (- 1) (select (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_80) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (- 4294967296) (select (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_80) |main_~#array~0.offset|)) 4294967296) 1))) (not (< (mod main_~index~0 4294967296) 1000)))} is VALID [2022-04-15 06:07:40,456 INFO L290 TraceCheckUtils]: 10: Hoare triple {1787#(or (forall ((v_ArrVal_80 Int) (v_ArrVal_77 Int)) (<= (div (* (- 1) (select (store (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_77) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_80) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (select (store (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_77) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_80) |main_~#array~0.offset|) (- 4294967296)) 4294967296) 1))) (not (< (mod (+ main_~index~0 1) 4294967296) 1000)) (not (< (mod main_~index~0 4294967296) 1000)))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1783#(or (forall ((v_ArrVal_80 Int)) (<= (div (* (- 1) (select (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_80) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (select (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_80) |main_~#array~0.offset|) (- 4294967296)) 4294967296) 1))) (not (< (mod (+ main_~index~0 1) 4294967296) 1000)))} is VALID [2022-04-15 06:07:40,460 INFO L290 TraceCheckUtils]: 9: Hoare triple {1791#(or (forall ((v_ArrVal_80 Int) (v_ArrVal_77 Int)) (<= (div (* (- 1) (select (store (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_77) (+ |main_~#array~0.offset| (* (mod (+ 2 main_~index~0) 4294967296) 4)) v_ArrVal_80) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (- 4294967296) (select (store (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_77) (+ |main_~#array~0.offset| (* (mod (+ 2 main_~index~0) 4294967296) 4)) v_ArrVal_80) |main_~#array~0.offset|)) 4294967296) 1))) (not (< (mod (+ main_~index~0 1) 4294967296) 1000)) (not (< (mod (+ 2 main_~index~0) 4294967296) 1000)))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1787#(or (forall ((v_ArrVal_80 Int) (v_ArrVal_77 Int)) (<= (div (* (- 1) (select (store (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_77) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_80) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (select (store (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_77) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_80) |main_~#array~0.offset|) (- 4294967296)) 4294967296) 1))) (not (< (mod (+ main_~index~0 1) 4294967296) 1000)) (not (< (mod main_~index~0 4294967296) 1000)))} is VALID [2022-04-15 06:07:40,466 INFO L290 TraceCheckUtils]: 8: Hoare triple {1795#(or (forall ((v_ArrVal_80 Int) (v_ArrVal_76 Int) (v_ArrVal_77 Int)) (<= (div (* (- 1) (select (store (store (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_76) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_77) (+ |main_~#array~0.offset| (* (mod (+ 2 main_~index~0) 4294967296) 4)) v_ArrVal_80) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (select (store (store (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_76) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_77) (+ |main_~#array~0.offset| (* (mod (+ 2 main_~index~0) 4294967296) 4)) v_ArrVal_80) |main_~#array~0.offset|) (- 4294967296)) 4294967296) 1))) (<= 1000 (mod main_~index~0 4294967296)) (<= 1000 (mod (+ 2 main_~index~0) 4294967296)))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1791#(or (forall ((v_ArrVal_80 Int) (v_ArrVal_77 Int)) (<= (div (* (- 1) (select (store (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_77) (+ |main_~#array~0.offset| (* (mod (+ 2 main_~index~0) 4294967296) 4)) v_ArrVal_80) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (- 4294967296) (select (store (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_77) (+ |main_~#array~0.offset| (* (mod (+ 2 main_~index~0) 4294967296) 4)) v_ArrVal_80) |main_~#array~0.offset|)) 4294967296) 1))) (not (< (mod (+ main_~index~0 1) 4294967296) 1000)) (not (< (mod (+ 2 main_~index~0) 4294967296) 1000)))} is VALID [2022-04-15 06:07:40,481 INFO L290 TraceCheckUtils]: 7: Hoare triple {1799#(or (forall ((v_ArrVal_80 Int) (v_ArrVal_76 Int) (v_ArrVal_77 Int)) (<= (div (* (- 1) (select (store (store (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_76) (+ |main_~#array~0.offset| (* (mod (+ 2 main_~index~0) 4294967296) 4)) v_ArrVal_77) (+ (* 4 (mod (+ 3 main_~index~0) 4294967296)) |main_~#array~0.offset|) v_ArrVal_80) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (select (store (store (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_76) (+ |main_~#array~0.offset| (* (mod (+ 2 main_~index~0) 4294967296) 4)) v_ArrVal_77) (+ (* 4 (mod (+ 3 main_~index~0) 4294967296)) |main_~#array~0.offset|) v_ArrVal_80) |main_~#array~0.offset|) (- 4294967296)) 4294967296) 1))) (<= 1000 (mod (+ main_~index~0 1) 4294967296)) (<= 1000 (mod (+ 3 main_~index~0) 4294967296)))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {1795#(or (forall ((v_ArrVal_80 Int) (v_ArrVal_76 Int) (v_ArrVal_77 Int)) (<= (div (* (- 1) (select (store (store (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_76) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_77) (+ |main_~#array~0.offset| (* (mod (+ 2 main_~index~0) 4294967296) 4)) v_ArrVal_80) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (select (store (store (store (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4)) v_ArrVal_76) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_77) (+ |main_~#array~0.offset| (* (mod (+ 2 main_~index~0) 4294967296) 4)) v_ArrVal_80) |main_~#array~0.offset|) (- 4294967296)) 4294967296) 1))) (<= 1000 (mod main_~index~0 4294967296)) (<= 1000 (mod (+ 2 main_~index~0) 4294967296)))} is VALID [2022-04-15 06:07:40,485 INFO L290 TraceCheckUtils]: 6: Hoare triple {1803#(or (<= 1000 (mod main_~index~0 4294967296)) (<= 1000 (mod (+ 3 main_~index~0) 4294967296)) (= (* (mod main_~index~0 4294967296) 4) 0))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {1799#(or (forall ((v_ArrVal_80 Int) (v_ArrVal_76 Int) (v_ArrVal_77 Int)) (<= (div (* (- 1) (select (store (store (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_76) (+ |main_~#array~0.offset| (* (mod (+ 2 main_~index~0) 4294967296) 4)) v_ArrVal_77) (+ (* 4 (mod (+ 3 main_~index~0) 4294967296)) |main_~#array~0.offset|) v_ArrVal_80) |main_~#array~0.offset|)) (- 4294967296)) (+ (div (+ (select (store (store (store (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~index~0 1) 4294967296) 4) |main_~#array~0.offset|) v_ArrVal_76) (+ |main_~#array~0.offset| (* (mod (+ 2 main_~index~0) 4294967296) 4)) v_ArrVal_77) (+ (* 4 (mod (+ 3 main_~index~0) 4294967296)) |main_~#array~0.offset|) v_ArrVal_80) |main_~#array~0.offset|) (- 4294967296)) 4294967296) 1))) (<= 1000 (mod (+ main_~index~0 1) 4294967296)) (<= 1000 (mod (+ 3 main_~index~0) 4294967296)))} is VALID [2022-04-15 06:07:40,485 INFO L290 TraceCheckUtils]: 5: Hoare triple {1663#true} call ~#array~0.base, ~#array~0.offset := #Ultimate.allocOnStack(4000);havoc ~index~0;~index~0 := 0; {1803#(or (<= 1000 (mod main_~index~0 4294967296)) (<= 1000 (mod (+ 3 main_~index~0) 4294967296)) (= (* (mod main_~index~0 4294967296) 4) 0))} is VALID [2022-04-15 06:07:40,485 INFO L272 TraceCheckUtils]: 4: Hoare triple {1663#true} call #t~ret5 := main(); {1663#true} is VALID [2022-04-15 06:07:40,486 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1663#true} {1663#true} #67#return; {1663#true} is VALID [2022-04-15 06:07:40,486 INFO L290 TraceCheckUtils]: 2: Hoare triple {1663#true} assume true; {1663#true} is VALID [2022-04-15 06:07:40,486 INFO L290 TraceCheckUtils]: 1: Hoare triple {1663#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {1663#true} is VALID [2022-04-15 06:07:40,486 INFO L272 TraceCheckUtils]: 0: Hoare triple {1663#true} call ULTIMATE.init(); {1663#true} is VALID [2022-04-15 06:07:40,486 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 06:07:40,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267302794] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-15 06:07:40,487 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-15 06:07:40,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 15] total 27 [2022-04-15 06:07:40,487 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 06:07:40,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [707527258] [2022-04-15 06:07:40,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [707527258] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 06:07:40,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 06:07:40,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-15 06:07:40,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338809916] [2022-04-15 06:07:40,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 06:07:40,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 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 22 [2022-04-15 06:07:40,488 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 06:07:40,488 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 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) [2022-04-15 06:07:40,504 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:07:40,504 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-15 06:07:40,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 06:07:40,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-15 06:07:40,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=589, Unknown=0, NotChecked=0, Total=702 [2022-04-15 06:07:40,505 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 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) [2022-04-15 06:07:41,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:07:41,133 INFO L93 Difference]: Finished difference Result 85 states and 101 transitions. [2022-04-15 06:07:41,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-15 06:07:41,133 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 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 22 [2022-04-15 06:07:41,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 06:07:41,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 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) [2022-04-15 06:07:41,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 87 transitions. [2022-04-15 06:07:41,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 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) [2022-04-15 06:07:41,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 87 transitions. [2022-04-15 06:07:41,137 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 8 states and 87 transitions. [2022-04-15 06:07:41,232 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 87 edges. 87 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:07:41,233 INFO L225 Difference]: With dead ends: 85 [2022-04-15 06:07:41,233 INFO L226 Difference]: Without dead ends: 59 [2022-04-15 06:07:41,234 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=146, Invalid=846, Unknown=0, NotChecked=0, Total=992 [2022-04-15 06:07:41,234 INFO L913 BasicCegarLoop]: 21 mSDtfsCounter, 60 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-15 06:07:41,234 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 48 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-15 06:07:41,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-04-15 06:07:41,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 48. [2022-04-15 06:07:41,290 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 06:07:41,290 INFO L82 GeneralOperation]: Start isEquivalent. First operand 59 states. Second operand has 48 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 38 states have internal predecessors, (41), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-15 06:07:41,291 INFO L74 IsIncluded]: Start isIncluded. First operand 59 states. Second operand has 48 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 38 states have internal predecessors, (41), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-15 06:07:41,291 INFO L87 Difference]: Start difference. First operand 59 states. Second operand has 48 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 38 states have internal predecessors, (41), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-15 06:07:41,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:07:41,293 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2022-04-15 06:07:41,293 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 69 transitions. [2022-04-15 06:07:41,293 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 06:07:41,294 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 06:07:41,294 INFO L74 IsIncluded]: Start isIncluded. First operand has 48 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 38 states have internal predecessors, (41), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand 59 states. [2022-04-15 06:07:41,294 INFO L87 Difference]: Start difference. First operand has 48 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 38 states have internal predecessors, (41), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand 59 states. [2022-04-15 06:07:41,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 06:07:41,296 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2022-04-15 06:07:41,296 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 69 transitions. [2022-04-15 06:07:41,297 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 06:07:41,297 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 06:07:41,297 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 06:07:41,297 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 06:07:41,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 38 states have internal predecessors, (41), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-15 06:07:41,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2022-04-15 06:07:41,299 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 22 [2022-04-15 06:07:41,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 06:07:41,299 INFO L478 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2022-04-15 06:07:41,299 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 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) [2022-04-15 06:07:41,299 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 48 states and 54 transitions. [2022-04-15 06:07:41,354 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 06:07:41,354 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2022-04-15 06:07:41,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-04-15 06:07:41,355 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 06:07:41,355 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 06:07:41,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-15 06:07:41,555 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 06:07:41,556 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 06:07:41,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 06:07:41,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1753234192, now seen corresponding path program 9 times [2022-04-15 06:07:41,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 06:07:41,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [508702186] [2022-04-15 06:07:41,563 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-04-15 06:07:41,563 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-04-15 06:07:41,563 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-15 06:07:41,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1753234192, now seen corresponding path program 10 times [2022-04-15 06:07:41,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 06:07:41,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921456437] [2022-04-15 06:07:41,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 06:07:41,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 06:07:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:07:41,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 06:07:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:07:41,687 INFO L290 TraceCheckUtils]: 0: Hoare triple {2229#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {2218#true} is VALID [2022-04-15 06:07:41,688 INFO L290 TraceCheckUtils]: 1: Hoare triple {2218#true} assume true; {2218#true} is VALID [2022-04-15 06:07:41,688 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {2218#true} {2218#true} #67#return; {2218#true} is VALID [2022-04-15 06:07:41,692 INFO L272 TraceCheckUtils]: 0: Hoare triple {2218#true} call ULTIMATE.init(); {2229#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 06:07:41,692 INFO L290 TraceCheckUtils]: 1: Hoare triple {2229#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {2218#true} is VALID [2022-04-15 06:07:41,692 INFO L290 TraceCheckUtils]: 2: Hoare triple {2218#true} assume true; {2218#true} is VALID [2022-04-15 06:07:41,692 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {2218#true} {2218#true} #67#return; {2218#true} is VALID [2022-04-15 06:07:41,692 INFO L272 TraceCheckUtils]: 4: Hoare triple {2218#true} call #t~ret5 := main(); {2218#true} is VALID [2022-04-15 06:07:41,693 INFO L290 TraceCheckUtils]: 5: Hoare triple {2218#true} call ~#array~0.base, ~#array~0.offset := #Ultimate.allocOnStack(4000);havoc ~index~0;~index~0 := 0; {2223#(= main_~index~0 0)} is VALID [2022-04-15 06:07:41,693 INFO L290 TraceCheckUtils]: 6: Hoare triple {2223#(= main_~index~0 0)} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {2223#(= main_~index~0 0)} is VALID [2022-04-15 06:07:41,693 INFO L290 TraceCheckUtils]: 7: Hoare triple {2223#(= main_~index~0 0)} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {2224#(and (<= main_~index~0 1) (<= 1 main_~index~0))} is VALID [2022-04-15 06:07:41,694 INFO L290 TraceCheckUtils]: 8: Hoare triple {2224#(and (<= main_~index~0 1) (<= 1 main_~index~0))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {2224#(and (<= main_~index~0 1) (<= 1 main_~index~0))} is VALID [2022-04-15 06:07:41,695 INFO L290 TraceCheckUtils]: 9: Hoare triple {2224#(and (<= main_~index~0 1) (<= 1 main_~index~0))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {2225#(and (<= main_~index~0 2) (<= 2 main_~index~0))} is VALID [2022-04-15 06:07:41,695 INFO L290 TraceCheckUtils]: 10: Hoare triple {2225#(and (<= main_~index~0 2) (<= 2 main_~index~0))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {2225#(and (<= main_~index~0 2) (<= 2 main_~index~0))} is VALID [2022-04-15 06:07:41,695 INFO L290 TraceCheckUtils]: 11: Hoare triple {2225#(and (<= main_~index~0 2) (<= 2 main_~index~0))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {2226#(and (<= 3 main_~index~0) (<= main_~index~0 3))} is VALID [2022-04-15 06:07:41,696 INFO L290 TraceCheckUtils]: 12: Hoare triple {2226#(and (<= 3 main_~index~0) (<= main_~index~0 3))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {2226#(and (<= 3 main_~index~0) (<= main_~index~0 3))} is VALID [2022-04-15 06:07:41,696 INFO L290 TraceCheckUtils]: 13: Hoare triple {2226#(and (<= 3 main_~index~0) (<= main_~index~0 3))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {2227#(and (<= 4 main_~index~0) (<= main_~index~0 4))} is VALID [2022-04-15 06:07:41,697 INFO L290 TraceCheckUtils]: 14: Hoare triple {2227#(and (<= 4 main_~index~0) (<= main_~index~0 4))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {2227#(and (<= 4 main_~index~0) (<= main_~index~0 4))} is VALID [2022-04-15 06:07:41,697 INFO L290 TraceCheckUtils]: 15: Hoare triple {2227#(and (<= 4 main_~index~0) (<= main_~index~0 4))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {2228#(and (not (<= (+ (div main_~index~0 4294967296) 1) 0)) (<= main_~index~0 5))} is VALID [2022-04-15 06:07:41,698 INFO L290 TraceCheckUtils]: 16: Hoare triple {2228#(and (not (<= (+ (div main_~index~0 4294967296) 1) 0)) (<= main_~index~0 5))} assume !(~index~0 % 4294967296 < 1000); {2219#false} is VALID [2022-04-15 06:07:41,698 INFO L290 TraceCheckUtils]: 17: Hoare triple {2219#false} ~index~0 := 0; {2219#false} is VALID [2022-04-15 06:07:41,698 INFO L290 TraceCheckUtils]: 18: Hoare triple {2219#false} assume !!(~index~0 % 4294967296 < 1000); {2219#false} is VALID [2022-04-15 06:07:41,698 INFO L290 TraceCheckUtils]: 19: Hoare triple {2219#false} assume 0 == (if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2) % 4294967296;call #t~mem3 := read~int(~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {2219#false} is VALID [2022-04-15 06:07:41,698 INFO L272 TraceCheckUtils]: 20: Hoare triple {2219#false} call __VERIFIER_assert((if 0 == #t~mem3 % 4294967296 then 1 else 0)); {2219#false} is VALID [2022-04-15 06:07:41,698 INFO L290 TraceCheckUtils]: 21: Hoare triple {2219#false} ~cond := #in~cond; {2219#false} is VALID [2022-04-15 06:07:41,698 INFO L290 TraceCheckUtils]: 22: Hoare triple {2219#false} assume 0 == ~cond; {2219#false} is VALID [2022-04-15 06:07:41,699 INFO L290 TraceCheckUtils]: 23: Hoare triple {2219#false} assume !false; {2219#false} is VALID [2022-04-15 06:07:41,699 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 06:07:41,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 06:07:41,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921456437] [2022-04-15 06:07:41,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921456437] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-15 06:07:41,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369621091] [2022-04-15 06:07:41,699 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-15 06:07:41,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 06:07:41,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 06:07:41,700 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-15 06:07:41,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-15 06:07:41,759 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-15 06:07:41,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-15 06:07:41,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 36 conjunts are in the unsatisfiable core [2022-04-15 06:07:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 06:07:41,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-15 06:07:41,799 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2022-04-15 06:07:41,879 INFO L356 Elim1Store]: treesize reduction 53, result has 22.1 percent of original size [2022-04-15 06:07:41,880 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2022-04-15 06:07:41,951 INFO L356 Elim1Store]: treesize reduction 53, result has 22.1 percent of original size [2022-04-15 06:07:41,952 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2022-04-15 06:07:42,011 INFO L356 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-04-15 06:07:42,013 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-04-15 06:07:42,065 INFO L356 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-04-15 06:07:42,065 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2022-04-15 06:07:42,132 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-04-15 06:07:42,177 INFO L272 TraceCheckUtils]: 0: Hoare triple {2218#true} call ULTIMATE.init(); {2218#true} is VALID [2022-04-15 06:07:42,177 INFO L290 TraceCheckUtils]: 1: Hoare triple {2218#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); {2218#true} is VALID [2022-04-15 06:07:42,178 INFO L290 TraceCheckUtils]: 2: Hoare triple {2218#true} assume true; {2218#true} is VALID [2022-04-15 06:07:42,178 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {2218#true} {2218#true} #67#return; {2218#true} is VALID [2022-04-15 06:07:42,178 INFO L272 TraceCheckUtils]: 4: Hoare triple {2218#true} call #t~ret5 := main(); {2218#true} is VALID [2022-04-15 06:07:42,178 INFO L290 TraceCheckUtils]: 5: Hoare triple {2218#true} call ~#array~0.base, ~#array~0.offset := #Ultimate.allocOnStack(4000);havoc ~index~0;~index~0 := 0; {2223#(= main_~index~0 0)} is VALID [2022-04-15 06:07:42,179 INFO L290 TraceCheckUtils]: 6: Hoare triple {2223#(= main_~index~0 0)} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {2251#(and (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} is VALID [2022-04-15 06:07:42,180 INFO L290 TraceCheckUtils]: 7: Hoare triple {2251#(and (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {2255#(and (= (mod (+ main_~index~0 1) 2) (select (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ 4294967295 main_~index~0) 4294967296) 4) |main_~#array~0.offset|))) (= (+ (- 1) main_~index~0) 0))} is VALID [2022-04-15 06:07:42,181 INFO L290 TraceCheckUtils]: 8: Hoare triple {2255#(and (= (mod (+ main_~index~0 1) 2) (select (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ 4294967295 main_~index~0) 4294967296) 4) |main_~#array~0.offset|))) (= (+ (- 1) main_~index~0) 0))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {2255#(and (= (mod (+ main_~index~0 1) 2) (select (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ 4294967295 main_~index~0) 4294967296) 4) |main_~#array~0.offset|))) (= (+ (- 1) main_~index~0) 0))} is VALID [2022-04-15 06:07:42,182 INFO L290 TraceCheckUtils]: 9: Hoare triple {2255#(and (= (mod (+ main_~index~0 1) 2) (select (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ 4294967295 main_~index~0) 4294967296) 4) |main_~#array~0.offset|))) (= (+ (- 1) main_~index~0) 0))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {2262#(and (= (+ (- 2) main_~index~0) 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ (* 4 (mod (+ 4294967294 main_~index~0) 4294967296)) |main_~#array~0.offset|)) (mod main_~index~0 2)))} is VALID [2022-04-15 06:07:42,183 INFO L290 TraceCheckUtils]: 10: Hoare triple {2262#(and (= (+ (- 2) main_~index~0) 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ (* 4 (mod (+ 4294967294 main_~index~0) 4294967296)) |main_~#array~0.offset|)) (mod main_~index~0 2)))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {2262#(and (= (+ (- 2) main_~index~0) 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ (* 4 (mod (+ 4294967294 main_~index~0) 4294967296)) |main_~#array~0.offset|)) (mod main_~index~0 2)))} is VALID [2022-04-15 06:07:42,183 INFO L290 TraceCheckUtils]: 11: Hoare triple {2262#(and (= (+ (- 2) main_~index~0) 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ (* 4 (mod (+ 4294967294 main_~index~0) 4294967296)) |main_~#array~0.offset|)) (mod main_~index~0 2)))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {2269#(and (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0) (= 3 main_~index~0))} is VALID [2022-04-15 06:07:42,184 INFO L290 TraceCheckUtils]: 12: Hoare triple {2269#(and (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0) (= 3 main_~index~0))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {2269#(and (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0) (= 3 main_~index~0))} is VALID [2022-04-15 06:07:42,184 INFO L290 TraceCheckUtils]: 13: Hoare triple {2269#(and (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0) (= 3 main_~index~0))} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {2276#(and (= 3 (+ (- 1) main_~index~0)) (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0))} is VALID [2022-04-15 06:07:42,185 INFO L290 TraceCheckUtils]: 14: Hoare triple {2276#(and (= 3 (+ (- 1) main_~index~0)) (= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0))} assume !!(~index~0 % 4294967296 < 1000);call write~int((if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2), ~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {2280#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} is VALID [2022-04-15 06:07:42,185 INFO L290 TraceCheckUtils]: 15: Hoare triple {2280#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; {2280#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} is VALID [2022-04-15 06:07:42,186 INFO L290 TraceCheckUtils]: 16: Hoare triple {2280#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} assume !(~index~0 % 4294967296 < 1000); {2280#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} is VALID [2022-04-15 06:07:42,186 INFO L290 TraceCheckUtils]: 17: Hoare triple {2280#(= (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) 0)} ~index~0 := 0; {2251#(and (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} is VALID [2022-04-15 06:07:42,187 INFO L290 TraceCheckUtils]: 18: Hoare triple {2251#(and (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} assume !!(~index~0 % 4294967296 < 1000); {2251#(and (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} is VALID [2022-04-15 06:07:42,187 INFO L290 TraceCheckUtils]: 19: Hoare triple {2251#(and (= main_~index~0 0) (= (select (select |#memory_int| |main_~#array~0.base|) (+ |main_~#array~0.offset| (* (mod main_~index~0 4294967296) 4))) (mod main_~index~0 2)))} assume 0 == (if ~index~0 % 4294967296 < 0 && 0 != ~index~0 % 4294967296 % 2 then ~index~0 % 4294967296 % 2 - 2 else ~index~0 % 4294967296 % 2) % 4294967296;call #t~mem3 := read~int(~#array~0.base, ~#array~0.offset + 4 * (if ~index~0 % 4294967296 % 4294967296 <= 2147483647 then ~index~0 % 4294967296 % 4294967296 else ~index~0 % 4294967296 % 4294967296 - 4294967296), 4); {2296#(= |main_#t~mem3| 0)} is VALID [2022-04-15 06:07:42,188 INFO L272 TraceCheckUtils]: 20: Hoare triple {2296#(= |main_#t~mem3| 0)} call __VERIFIER_assert((if 0 == #t~mem3 % 4294967296 then 1 else 0)); {2300#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-15 06:07:42,188 INFO L290 TraceCheckUtils]: 21: Hoare triple {2300#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {2304#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-15 06:07:42,189 INFO L290 TraceCheckUtils]: 22: Hoare triple {2304#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {2219#false} is VALID [2022-04-15 06:07:42,189 INFO L290 TraceCheckUtils]: 23: Hoare triple {2219#false} assume !false; {2219#false} is VALID [2022-04-15 06:07:42,189 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 06:07:42,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-15 06:07:45,585 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 127 [2022-04-15 06:07:45,674 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20038 treesize of output 19974