/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/loop-zilu/benchmark20_conjunctive.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-07 23:31:38,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-07 23:31:38,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-07 23:31:38,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-07 23:31:38,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-07 23:31:38,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-07 23:31:38,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-07 23:31:38,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-07 23:31:38,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-07 23:31:38,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-07 23:31:38,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-07 23:31:38,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-07 23:31:38,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-07 23:31:38,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-07 23:31:38,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-07 23:31:38,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-07 23:31:38,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-07 23:31:38,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-07 23:31:38,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-07 23:31:38,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-07 23:31:38,431 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-07 23:31:38,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-07 23:31:38,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-07 23:31:38,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-07 23:31:38,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-07 23:31:38,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-07 23:31:38,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-07 23:31:38,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-07 23:31:38,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-07 23:31:38,446 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-07 23:31:38,466 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-07 23:31:38,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-07 23:31:38,467 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-07 23:31:38,467 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-07 23:31:38,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-07 23:31:38,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-07 23:31:38,470 INFO L138 SettingsManager]: * Use SBE=true [2022-04-07 23:31:38,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-07 23:31:38,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-07 23:31:38,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-07 23:31:38,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-07 23:31:38,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-07 23:31:38,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-07 23:31:38,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-07 23:31:38,471 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-07 23:31:38,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-07 23:31:38,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-07 23:31:38,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-07 23:31:38,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-07 23:31:38,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 23:31:38,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-07 23:31:38,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-07 23:31:38,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-07 23:31:38,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-07 23:31:38,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-07 23:31:38,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-07 23:31:38,472 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-07 23:31:38,472 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-07 23:31:38,473 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-07 23:31:38,473 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-07 23:31:38,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-07 23:31:38,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-07 23:31:38,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-07 23:31:38,675 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-07 23:31:38,676 INFO L275 PluginConnector]: CDTParser initialized [2022-04-07 23:31:38,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-zilu/benchmark20_conjunctive.i [2022-04-07 23:31:38,732 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3900f6ddc/5e6512faabfc4d6cb3639c240266f46f/FLAGf4c19a656 [2022-04-07 23:31:39,020 INFO L306 CDTParser]: Found 1 translation units. [2022-04-07 23:31:39,020 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark20_conjunctive.i [2022-04-07 23:31:39,027 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3900f6ddc/5e6512faabfc4d6cb3639c240266f46f/FLAGf4c19a656 [2022-04-07 23:31:39,455 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3900f6ddc/5e6512faabfc4d6cb3639c240266f46f [2022-04-07 23:31:39,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-07 23:31:39,458 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-07 23:31:39,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-07 23:31:39,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-07 23:31:39,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-07 23:31:39,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 11:31:39" (1/1) ... [2022-04-07 23:31:39,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ab60637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:31:39, skipping insertion in model container [2022-04-07 23:31:39,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 11:31:39" (1/1) ... [2022-04-07 23:31:39,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-07 23:31:39,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-07 23:31:39,596 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-zilu/benchmark20_conjunctive.i[873,886] [2022-04-07 23:31:39,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 23:31:39,626 INFO L203 MainTranslator]: Completed pre-run [2022-04-07 23:31:39,633 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-zilu/benchmark20_conjunctive.i[873,886] [2022-04-07 23:31:39,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 23:31:39,648 INFO L208 MainTranslator]: Completed translation [2022-04-07 23:31:39,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:31:39 WrapperNode [2022-04-07 23:31:39,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-07 23:31:39,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-07 23:31:39,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-07 23:31:39,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-07 23:31:39,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:31:39" (1/1) ... [2022-04-07 23:31:39,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:31:39" (1/1) ... [2022-04-07 23:31:39,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:31:39" (1/1) ... [2022-04-07 23:31:39,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:31:39" (1/1) ... [2022-04-07 23:31:39,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:31:39" (1/1) ... [2022-04-07 23:31:39,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:31:39" (1/1) ... [2022-04-07 23:31:39,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:31:39" (1/1) ... [2022-04-07 23:31:39,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-07 23:31:39,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-07 23:31:39,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-07 23:31:39,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-07 23:31:39,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:31:39" (1/1) ... [2022-04-07 23:31:39,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 23:31:39,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 23:31:39,710 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) [2022-04-07 23:31:39,715 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 [2022-04-07 23:31:39,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-07 23:31:39,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-07 23:31:39,735 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-07 23:31:39,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-07 23:31:39,736 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-07 23:31:39,736 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-07 23:31:39,736 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-04-07 23:31:39,736 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-04-07 23:31:39,736 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-07 23:31:39,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-07 23:31:39,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-07 23:31:39,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2022-04-07 23:31:39,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-07 23:31:39,736 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-07 23:31:39,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-07 23:31:39,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-07 23:31:39,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-07 23:31:39,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-07 23:31:39,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-07 23:31:39,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-07 23:31:39,793 INFO L234 CfgBuilder]: Building ICFG [2022-04-07 23:31:39,795 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-07 23:31:39,958 INFO L275 CfgBuilder]: Performing block encoding [2022-04-07 23:31:39,963 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-07 23:31:39,963 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-07 23:31:39,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 11:31:39 BoogieIcfgContainer [2022-04-07 23:31:39,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-07 23:31:39,965 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-07 23:31:39,965 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-07 23:31:39,966 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-07 23:31:39,989 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 11:31:39" (1/1) ... [2022-04-07 23:31:39,991 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-07 23:31:40,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 07.04 11:31:40 BasicIcfg [2022-04-07 23:31:40,019 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-07 23:31:40,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-07 23:31:40,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-07 23:31:40,022 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-07 23:31:40,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.04 11:31:39" (1/4) ... [2022-04-07 23:31:40,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b584f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 11:31:40, skipping insertion in model container [2022-04-07 23:31:40,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 11:31:39" (2/4) ... [2022-04-07 23:31:40,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b584f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 11:31:40, skipping insertion in model container [2022-04-07 23:31:40,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 11:31:39" (3/4) ... [2022-04-07 23:31:40,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b584f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 11:31:40, skipping insertion in model container [2022-04-07 23:31:40,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 07.04 11:31:40" (4/4) ... [2022-04-07 23:31:40,024 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark20_conjunctive.iqvasr [2022-04-07 23:31:40,028 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-07 23:31:40,028 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-07 23:31:40,088 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-07 23:31:40,092 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 [2022-04-07 23:31:40,092 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-07 23:31:40,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-07 23:31:40,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-07 23:31:40,121 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 23:31:40,121 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 23:31:40,122 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 23:31:40,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 23:31:40,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1809217115, now seen corresponding path program 1 times [2022-04-07 23:31:40,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 23:31:40,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166685666] [2022-04-07 23:31:40,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 23:31:40,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 23:31:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 23:31:40,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 23:31:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 23:31:40,282 INFO L290 TraceCheckUtils]: 0: Hoare triple {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [50] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 26) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {23#true} is VALID [2022-04-07 23:31:40,283 INFO L290 TraceCheckUtils]: 1: Hoare triple {23#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-07 23:31:40,283 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {23#true} {23#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-07 23:31:40,284 INFO L272 TraceCheckUtils]: 0: Hoare triple {23#true} [48] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 23:31:40,285 INFO L290 TraceCheckUtils]: 1: Hoare triple {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [50] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 26) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {23#true} is VALID [2022-04-07 23:31:40,285 INFO L290 TraceCheckUtils]: 2: Hoare triple {23#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-07 23:31:40,285 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {23#true} {23#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-07 23:31:40,285 INFO L272 TraceCheckUtils]: 4: Hoare triple {23#true} [49] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-07 23:31:40,286 INFO L290 TraceCheckUtils]: 5: Hoare triple {23#true} [52] mainENTRY-->L23: Formula: (and (<= |v_main_#t~nondet3_2| 2147483647) (<= |v_main_#t~nondet1_2| 2147483647) (= v_main_~i~0_4 |v_main_#t~nondet1_2|) (<= 0 (+ |v_main_#t~nondet2_2| 2147483648)) (<= |v_main_#t~nondet2_2| 2147483647) (<= 0 (+ |v_main_#t~nondet1_2| 2147483648)) (= |v_main_#t~nondet3_2| v_main_~sum~0_3) (<= 0 (+ |v_main_#t~nondet3_2| 2147483648)) (= v_main_~n~0_3 |v_main_#t~nondet2_2|)) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet3=|v_main_#t~nondet3_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~i~0=v_main_~i~0_4, main_~n~0=v_main_~n~0_3, main_~sum~0=v_main_~sum~0_3} AuxVars[] AssignedVars[main_#t~nondet1, main_#t~nondet3, main_~sum~0, main_#t~nondet2, main_~i~0, main_~n~0] {23#true} is VALID [2022-04-07 23:31:40,286 INFO L290 TraceCheckUtils]: 6: Hoare triple {23#true} [55] L23-->L24-2: Formula: (and (<= 0 v_main_~n~0_5) (= v_main_~i~0_6 0) (<= v_main_~n~0_5 100) (= 0 v_main_~sum~0_6)) InVars {main_~i~0=v_main_~i~0_6, main_~n~0=v_main_~n~0_5, main_~sum~0=v_main_~sum~0_6} OutVars{main_~i~0=v_main_~i~0_6, main_~n~0=v_main_~n~0_5, main_~sum~0=v_main_~sum~0_6} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-07 23:31:40,286 INFO L290 TraceCheckUtils]: 7: Hoare triple {23#true} [57] L24-2-->L24-3: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {24#false} is VALID [2022-04-07 23:31:40,287 INFO L272 TraceCheckUtils]: 8: Hoare triple {24#false} [60] L24-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (<= 0 v_main_~sum~0_7) 1 0)) InVars {main_~sum~0=v_main_~sum~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sum~0] {24#false} is VALID [2022-04-07 23:31:40,287 INFO L290 TraceCheckUtils]: 9: Hoare triple {24#false} [62] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {24#false} is VALID [2022-04-07 23:31:40,287 INFO L290 TraceCheckUtils]: 10: Hoare triple {24#false} [63] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {24#false} is VALID [2022-04-07 23:31:40,287 INFO L290 TraceCheckUtils]: 11: Hoare triple {24#false} [65] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#false} is VALID [2022-04-07 23:31:40,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 23:31:40,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 23:31:40,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166685666] [2022-04-07 23:31:40,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166685666] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 23:31:40,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 23:31:40,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-07 23:31:40,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802334089] [2022-04-07 23:31:40,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 23:31:40,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-04-07 23:31:40,295 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 23:31:40,297 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:40,309 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 23:31:40,309 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-07 23:31:40,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 23:31:40,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-07 23:31:40,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-07 23:31:40,325 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:40,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:31:40,371 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2022-04-07 23:31:40,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-07 23:31:40,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-04-07 23:31:40,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 23:31:40,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:40,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2022-04-07 23:31:40,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:40,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2022-04-07 23:31:40,379 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 36 transitions. [2022-04-07 23:31:40,411 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 23:31:40,416 INFO L225 Difference]: With dead ends: 32 [2022-04-07 23:31:40,416 INFO L226 Difference]: Without dead ends: 13 [2022-04-07 23:31:40,418 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-07 23:31:40,420 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 23:31:40,421 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 23 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 23:31:40,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-04-07 23:31:40,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-04-07 23:31:40,443 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 23:31:40,444 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:40,444 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:40,445 INFO L87 Difference]: Start difference. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:40,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:31:40,452 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-07 23:31:40,452 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-07 23:31:40,452 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 23:31:40,452 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 23:31:40,453 INFO L74 IsIncluded]: Start isIncluded. First operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 13 states. [2022-04-07 23:31:40,453 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 13 states. [2022-04-07 23:31:40,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:31:40,454 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-07 23:31:40,454 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-07 23:31:40,455 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 23:31:40,455 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 23:31:40,455 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 23:31:40,455 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 23:31:40,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:40,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-04-07 23:31:40,457 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 12 [2022-04-07 23:31:40,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 23:31:40,457 INFO L478 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-04-07 23:31:40,457 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:40,458 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-07 23:31:40,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-07 23:31:40,458 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 23:31:40,458 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 23:31:40,458 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-07 23:31:40,458 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 23:31:40,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 23:31:40,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1810140636, now seen corresponding path program 1 times [2022-04-07 23:31:40,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 23:31:40,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417027676] [2022-04-07 23:31:40,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 23:31:40,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 23:31:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 23:31:40,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 23:31:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 23:31:40,579 INFO L290 TraceCheckUtils]: 0: Hoare triple {126#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [50] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 26) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {118#true} is VALID [2022-04-07 23:31:40,579 INFO L290 TraceCheckUtils]: 1: Hoare triple {118#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {118#true} is VALID [2022-04-07 23:31:40,580 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {118#true} {118#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {118#true} is VALID [2022-04-07 23:31:40,580 INFO L272 TraceCheckUtils]: 0: Hoare triple {118#true} [48] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {126#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 23:31:40,581 INFO L290 TraceCheckUtils]: 1: Hoare triple {126#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [50] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 26) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {118#true} is VALID [2022-04-07 23:31:40,581 INFO L290 TraceCheckUtils]: 2: Hoare triple {118#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {118#true} is VALID [2022-04-07 23:31:40,581 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {118#true} {118#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {118#true} is VALID [2022-04-07 23:31:40,581 INFO L272 TraceCheckUtils]: 4: Hoare triple {118#true} [49] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {118#true} is VALID [2022-04-07 23:31:40,582 INFO L290 TraceCheckUtils]: 5: Hoare triple {118#true} [52] mainENTRY-->L23: Formula: (and (<= |v_main_#t~nondet3_2| 2147483647) (<= |v_main_#t~nondet1_2| 2147483647) (= v_main_~i~0_4 |v_main_#t~nondet1_2|) (<= 0 (+ |v_main_#t~nondet2_2| 2147483648)) (<= |v_main_#t~nondet2_2| 2147483647) (<= 0 (+ |v_main_#t~nondet1_2| 2147483648)) (= |v_main_#t~nondet3_2| v_main_~sum~0_3) (<= 0 (+ |v_main_#t~nondet3_2| 2147483648)) (= v_main_~n~0_3 |v_main_#t~nondet2_2|)) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet3=|v_main_#t~nondet3_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~i~0=v_main_~i~0_4, main_~n~0=v_main_~n~0_3, main_~sum~0=v_main_~sum~0_3} AuxVars[] AssignedVars[main_#t~nondet1, main_#t~nondet3, main_~sum~0, main_#t~nondet2, main_~i~0, main_~n~0] {118#true} is VALID [2022-04-07 23:31:40,582 INFO L290 TraceCheckUtils]: 6: Hoare triple {118#true} [55] L23-->L24-2: Formula: (and (<= 0 v_main_~n~0_5) (= v_main_~i~0_6 0) (<= v_main_~n~0_5 100) (= 0 v_main_~sum~0_6)) InVars {main_~i~0=v_main_~i~0_6, main_~n~0=v_main_~n~0_5, main_~sum~0=v_main_~sum~0_6} OutVars{main_~i~0=v_main_~i~0_6, main_~n~0=v_main_~n~0_5, main_~sum~0=v_main_~sum~0_6} AuxVars[] AssignedVars[] {123#(<= 0 main_~sum~0)} is VALID [2022-04-07 23:31:40,582 INFO L290 TraceCheckUtils]: 7: Hoare triple {123#(<= 0 main_~sum~0)} [58] L24-2-->L24-3: Formula: (not (< v_main_~i~0_1 v_main_~n~0_1)) InVars {main_~i~0=v_main_~i~0_1, main_~n~0=v_main_~n~0_1} OutVars{main_~i~0=v_main_~i~0_1, main_~n~0=v_main_~n~0_1} AuxVars[] AssignedVars[] {123#(<= 0 main_~sum~0)} is VALID [2022-04-07 23:31:40,583 INFO L272 TraceCheckUtils]: 8: Hoare triple {123#(<= 0 main_~sum~0)} [60] L24-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (<= 0 v_main_~sum~0_7) 1 0)) InVars {main_~sum~0=v_main_~sum~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sum~0] {124#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-07 23:31:40,584 INFO L290 TraceCheckUtils]: 9: Hoare triple {124#(not (= |__VERIFIER_assert_#in~cond| 0))} [62] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {125#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-07 23:31:40,584 INFO L290 TraceCheckUtils]: 10: Hoare triple {125#(not (= __VERIFIER_assert_~cond 0))} [63] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {119#false} is VALID [2022-04-07 23:31:40,584 INFO L290 TraceCheckUtils]: 11: Hoare triple {119#false} [65] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {119#false} is VALID [2022-04-07 23:31:40,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 23:31:40,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 23:31:40,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417027676] [2022-04-07 23:31:40,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417027676] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 23:31:40,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 23:31:40,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 23:31:40,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671900811] [2022-04-07 23:31:40,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 23:31:40,586 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-04-07 23:31:40,587 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 23:31:40,587 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:40,596 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 23:31:40,596 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 23:31:40,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 23:31:40,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 23:31:40,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 23:31:40,597 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:40,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:31:40,675 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-04-07 23:31:40,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 23:31:40,676 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-04-07 23:31:40,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 23:31:40,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:40,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2022-04-07 23:31:40,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:40,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2022-04-07 23:31:40,678 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 19 transitions. [2022-04-07 23:31:40,694 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 23:31:40,695 INFO L225 Difference]: With dead ends: 19 [2022-04-07 23:31:40,705 INFO L226 Difference]: Without dead ends: 14 [2022-04-07 23:31:40,705 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 23:31:40,706 INFO L913 BasicCegarLoop]: 11 mSDtfsCounter, 10 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 23:31:40,707 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 28 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 23:31:40,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-04-07 23:31:40,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-04-07 23:31:40,710 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 23:31:40,710 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14 states. Second operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:40,710 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:40,710 INFO L87 Difference]: Start difference. First operand 14 states. Second operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:40,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:31:40,711 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-04-07 23:31:40,711 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-04-07 23:31:40,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 23:31:40,712 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 23:31:40,712 INFO L74 IsIncluded]: Start isIncluded. First operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 14 states. [2022-04-07 23:31:40,712 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 14 states. [2022-04-07 23:31:40,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:31:40,713 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-04-07 23:31:40,713 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-04-07 23:31:40,713 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 23:31:40,713 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 23:31:40,713 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 23:31:40,713 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 23:31:40,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:40,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-04-07 23:31:40,714 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2022-04-07 23:31:40,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 23:31:40,714 INFO L478 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-04-07 23:31:40,715 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:40,715 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-04-07 23:31:40,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-04-07 23:31:40,715 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 23:31:40,715 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 23:31:40,715 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-07 23:31:40,715 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 23:31:40,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 23:31:40,716 INFO L85 PathProgramCache]: Analyzing trace with hash 306506437, now seen corresponding path program 1 times [2022-04-07 23:31:40,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 23:31:40,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026441472] [2022-04-07 23:31:40,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 23:31:40,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 23:31:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 23:31:40,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 23:31:40,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 23:31:40,820 INFO L290 TraceCheckUtils]: 0: Hoare triple {223#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [50] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 26) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {214#true} is VALID [2022-04-07 23:31:40,821 INFO L290 TraceCheckUtils]: 1: Hoare triple {214#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {214#true} is VALID [2022-04-07 23:31:40,821 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {214#true} {214#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {214#true} is VALID [2022-04-07 23:31:40,822 INFO L272 TraceCheckUtils]: 0: Hoare triple {214#true} [48] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {223#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 23:31:40,822 INFO L290 TraceCheckUtils]: 1: Hoare triple {223#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [50] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 26) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {214#true} is VALID [2022-04-07 23:31:40,822 INFO L290 TraceCheckUtils]: 2: Hoare triple {214#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {214#true} is VALID [2022-04-07 23:31:40,822 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {214#true} {214#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {214#true} is VALID [2022-04-07 23:31:40,822 INFO L272 TraceCheckUtils]: 4: Hoare triple {214#true} [49] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {214#true} is VALID [2022-04-07 23:31:40,823 INFO L290 TraceCheckUtils]: 5: Hoare triple {214#true} [52] mainENTRY-->L23: Formula: (and (<= |v_main_#t~nondet3_2| 2147483647) (<= |v_main_#t~nondet1_2| 2147483647) (= v_main_~i~0_4 |v_main_#t~nondet1_2|) (<= 0 (+ |v_main_#t~nondet2_2| 2147483648)) (<= |v_main_#t~nondet2_2| 2147483647) (<= 0 (+ |v_main_#t~nondet1_2| 2147483648)) (= |v_main_#t~nondet3_2| v_main_~sum~0_3) (<= 0 (+ |v_main_#t~nondet3_2| 2147483648)) (= v_main_~n~0_3 |v_main_#t~nondet2_2|)) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet3=|v_main_#t~nondet3_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~i~0=v_main_~i~0_4, main_~n~0=v_main_~n~0_3, main_~sum~0=v_main_~sum~0_3} AuxVars[] AssignedVars[main_#t~nondet1, main_#t~nondet3, main_~sum~0, main_#t~nondet2, main_~i~0, main_~n~0] {214#true} is VALID [2022-04-07 23:31:40,823 INFO L290 TraceCheckUtils]: 6: Hoare triple {214#true} [55] L23-->L24-2: Formula: (and (<= 0 v_main_~n~0_5) (= v_main_~i~0_6 0) (<= v_main_~n~0_5 100) (= 0 v_main_~sum~0_6)) InVars {main_~i~0=v_main_~i~0_6, main_~n~0=v_main_~n~0_5, main_~sum~0=v_main_~sum~0_6} OutVars{main_~i~0=v_main_~i~0_6, main_~n~0=v_main_~n~0_5, main_~sum~0=v_main_~sum~0_6} AuxVars[] AssignedVars[] {219#(<= 0 (+ main_~sum~0 main_~i~0))} is VALID [2022-04-07 23:31:40,824 INFO L290 TraceCheckUtils]: 7: Hoare triple {219#(<= 0 (+ main_~sum~0 main_~i~0))} [59] L24-2-->L24-2: Formula: (and (= (+ v_main_~i~0_3 v_main_~sum~0_2) v_main_~sum~0_1) (< v_main_~i~0_3 v_main_~n~0_2) (= v_main_~i~0_2 (+ v_main_~i~0_3 1))) InVars {main_~i~0=v_main_~i~0_3, main_~n~0=v_main_~n~0_2, main_~sum~0=v_main_~sum~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~i~0=v_main_~i~0_2, main_~n~0=v_main_~n~0_2, main_~sum~0=v_main_~sum~0_1} AuxVars[] AssignedVars[main_~sum~0, main_#t~post4, main_~i~0] {220#(<= 0 main_~sum~0)} is VALID [2022-04-07 23:31:40,824 INFO L290 TraceCheckUtils]: 8: Hoare triple {220#(<= 0 main_~sum~0)} [58] L24-2-->L24-3: Formula: (not (< v_main_~i~0_1 v_main_~n~0_1)) InVars {main_~i~0=v_main_~i~0_1, main_~n~0=v_main_~n~0_1} OutVars{main_~i~0=v_main_~i~0_1, main_~n~0=v_main_~n~0_1} AuxVars[] AssignedVars[] {220#(<= 0 main_~sum~0)} is VALID [2022-04-07 23:31:40,825 INFO L272 TraceCheckUtils]: 9: Hoare triple {220#(<= 0 main_~sum~0)} [60] L24-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (<= 0 v_main_~sum~0_7) 1 0)) InVars {main_~sum~0=v_main_~sum~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sum~0] {221#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-07 23:31:40,825 INFO L290 TraceCheckUtils]: 10: Hoare triple {221#(not (= |__VERIFIER_assert_#in~cond| 0))} [62] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {222#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-07 23:31:40,827 INFO L290 TraceCheckUtils]: 11: Hoare triple {222#(not (= __VERIFIER_assert_~cond 0))} [63] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {215#false} is VALID [2022-04-07 23:31:40,827 INFO L290 TraceCheckUtils]: 12: Hoare triple {215#false} [65] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {215#false} is VALID [2022-04-07 23:31:40,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 23:31:40,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 23:31:40,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026441472] [2022-04-07 23:31:40,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026441472] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-07 23:31:40,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509472543] [2022-04-07 23:31:40,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 23:31:40,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 23:31:40,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 23:31:40,835 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) [2022-04-07 23:31:40,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-07 23:31:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 23:31:40,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2022-04-07 23:31:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 23:31:40,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 23:31:41,042 INFO L272 TraceCheckUtils]: 0: Hoare triple {214#true} [48] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {214#true} is VALID [2022-04-07 23:31:41,042 INFO L290 TraceCheckUtils]: 1: Hoare triple {214#true} [50] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 26) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {214#true} is VALID [2022-04-07 23:31:41,042 INFO L290 TraceCheckUtils]: 2: Hoare triple {214#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {214#true} is VALID [2022-04-07 23:31:41,042 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {214#true} {214#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {214#true} is VALID [2022-04-07 23:31:41,043 INFO L272 TraceCheckUtils]: 4: Hoare triple {214#true} [49] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {214#true} is VALID [2022-04-07 23:31:41,043 INFO L290 TraceCheckUtils]: 5: Hoare triple {214#true} [52] mainENTRY-->L23: Formula: (and (<= |v_main_#t~nondet3_2| 2147483647) (<= |v_main_#t~nondet1_2| 2147483647) (= v_main_~i~0_4 |v_main_#t~nondet1_2|) (<= 0 (+ |v_main_#t~nondet2_2| 2147483648)) (<= |v_main_#t~nondet2_2| 2147483647) (<= 0 (+ |v_main_#t~nondet1_2| 2147483648)) (= |v_main_#t~nondet3_2| v_main_~sum~0_3) (<= 0 (+ |v_main_#t~nondet3_2| 2147483648)) (= v_main_~n~0_3 |v_main_#t~nondet2_2|)) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet3=|v_main_#t~nondet3_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~i~0=v_main_~i~0_4, main_~n~0=v_main_~n~0_3, main_~sum~0=v_main_~sum~0_3} AuxVars[] AssignedVars[main_#t~nondet1, main_#t~nondet3, main_~sum~0, main_#t~nondet2, main_~i~0, main_~n~0] {214#true} is VALID [2022-04-07 23:31:41,045 INFO L290 TraceCheckUtils]: 6: Hoare triple {214#true} [55] L23-->L24-2: Formula: (and (<= 0 v_main_~n~0_5) (= v_main_~i~0_6 0) (<= v_main_~n~0_5 100) (= 0 v_main_~sum~0_6)) InVars {main_~i~0=v_main_~i~0_6, main_~n~0=v_main_~n~0_5, main_~sum~0=v_main_~sum~0_6} OutVars{main_~i~0=v_main_~i~0_6, main_~n~0=v_main_~n~0_5, main_~sum~0=v_main_~sum~0_6} AuxVars[] AssignedVars[] {245#(and (<= 0 main_~i~0) (<= 0 main_~sum~0))} is VALID [2022-04-07 23:31:41,046 INFO L290 TraceCheckUtils]: 7: Hoare triple {245#(and (<= 0 main_~i~0) (<= 0 main_~sum~0))} [59] L24-2-->L24-2: Formula: (and (= (+ v_main_~i~0_3 v_main_~sum~0_2) v_main_~sum~0_1) (< v_main_~i~0_3 v_main_~n~0_2) (= v_main_~i~0_2 (+ v_main_~i~0_3 1))) InVars {main_~i~0=v_main_~i~0_3, main_~n~0=v_main_~n~0_2, main_~sum~0=v_main_~sum~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~i~0=v_main_~i~0_2, main_~n~0=v_main_~n~0_2, main_~sum~0=v_main_~sum~0_1} AuxVars[] AssignedVars[main_~sum~0, main_#t~post4, main_~i~0] {220#(<= 0 main_~sum~0)} is VALID [2022-04-07 23:31:41,047 INFO L290 TraceCheckUtils]: 8: Hoare triple {220#(<= 0 main_~sum~0)} [58] L24-2-->L24-3: Formula: (not (< v_main_~i~0_1 v_main_~n~0_1)) InVars {main_~i~0=v_main_~i~0_1, main_~n~0=v_main_~n~0_1} OutVars{main_~i~0=v_main_~i~0_1, main_~n~0=v_main_~n~0_1} AuxVars[] AssignedVars[] {220#(<= 0 main_~sum~0)} is VALID [2022-04-07 23:31:41,048 INFO L272 TraceCheckUtils]: 9: Hoare triple {220#(<= 0 main_~sum~0)} [60] L24-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (<= 0 v_main_~sum~0_7) 1 0)) InVars {main_~sum~0=v_main_~sum~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sum~0] {255#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 23:31:41,048 INFO L290 TraceCheckUtils]: 10: Hoare triple {255#(<= 1 |__VERIFIER_assert_#in~cond|)} [62] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {259#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-07 23:31:41,049 INFO L290 TraceCheckUtils]: 11: Hoare triple {259#(<= 1 __VERIFIER_assert_~cond)} [63] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {215#false} is VALID [2022-04-07 23:31:41,049 INFO L290 TraceCheckUtils]: 12: Hoare triple {215#false} [65] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {215#false} is VALID [2022-04-07 23:31:41,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 23:31:41,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-07 23:31:41,162 INFO L290 TraceCheckUtils]: 12: Hoare triple {215#false} [65] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {215#false} is VALID [2022-04-07 23:31:41,163 INFO L290 TraceCheckUtils]: 11: Hoare triple {259#(<= 1 __VERIFIER_assert_~cond)} [63] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {215#false} is VALID [2022-04-07 23:31:41,163 INFO L290 TraceCheckUtils]: 10: Hoare triple {255#(<= 1 |__VERIFIER_assert_#in~cond|)} [62] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {259#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-07 23:31:41,164 INFO L272 TraceCheckUtils]: 9: Hoare triple {220#(<= 0 main_~sum~0)} [60] L24-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (<= 0 v_main_~sum~0_7) 1 0)) InVars {main_~sum~0=v_main_~sum~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sum~0] {255#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 23:31:41,164 INFO L290 TraceCheckUtils]: 8: Hoare triple {220#(<= 0 main_~sum~0)} [58] L24-2-->L24-3: Formula: (not (< v_main_~i~0_1 v_main_~n~0_1)) InVars {main_~i~0=v_main_~i~0_1, main_~n~0=v_main_~n~0_1} OutVars{main_~i~0=v_main_~i~0_1, main_~n~0=v_main_~n~0_1} AuxVars[] AssignedVars[] {220#(<= 0 main_~sum~0)} is VALID [2022-04-07 23:31:41,165 INFO L290 TraceCheckUtils]: 7: Hoare triple {219#(<= 0 (+ main_~sum~0 main_~i~0))} [59] L24-2-->L24-2: Formula: (and (= (+ v_main_~i~0_3 v_main_~sum~0_2) v_main_~sum~0_1) (< v_main_~i~0_3 v_main_~n~0_2) (= v_main_~i~0_2 (+ v_main_~i~0_3 1))) InVars {main_~i~0=v_main_~i~0_3, main_~n~0=v_main_~n~0_2, main_~sum~0=v_main_~sum~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~i~0=v_main_~i~0_2, main_~n~0=v_main_~n~0_2, main_~sum~0=v_main_~sum~0_1} AuxVars[] AssignedVars[main_~sum~0, main_#t~post4, main_~i~0] {220#(<= 0 main_~sum~0)} is VALID [2022-04-07 23:31:41,165 INFO L290 TraceCheckUtils]: 6: Hoare triple {214#true} [55] L23-->L24-2: Formula: (and (<= 0 v_main_~n~0_5) (= v_main_~i~0_6 0) (<= v_main_~n~0_5 100) (= 0 v_main_~sum~0_6)) InVars {main_~i~0=v_main_~i~0_6, main_~n~0=v_main_~n~0_5, main_~sum~0=v_main_~sum~0_6} OutVars{main_~i~0=v_main_~i~0_6, main_~n~0=v_main_~n~0_5, main_~sum~0=v_main_~sum~0_6} AuxVars[] AssignedVars[] {219#(<= 0 (+ main_~sum~0 main_~i~0))} is VALID [2022-04-07 23:31:41,165 INFO L290 TraceCheckUtils]: 5: Hoare triple {214#true} [52] mainENTRY-->L23: Formula: (and (<= |v_main_#t~nondet3_2| 2147483647) (<= |v_main_#t~nondet1_2| 2147483647) (= v_main_~i~0_4 |v_main_#t~nondet1_2|) (<= 0 (+ |v_main_#t~nondet2_2| 2147483648)) (<= |v_main_#t~nondet2_2| 2147483647) (<= 0 (+ |v_main_#t~nondet1_2| 2147483648)) (= |v_main_#t~nondet3_2| v_main_~sum~0_3) (<= 0 (+ |v_main_#t~nondet3_2| 2147483648)) (= v_main_~n~0_3 |v_main_#t~nondet2_2|)) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet3=|v_main_#t~nondet3_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~i~0=v_main_~i~0_4, main_~n~0=v_main_~n~0_3, main_~sum~0=v_main_~sum~0_3} AuxVars[] AssignedVars[main_#t~nondet1, main_#t~nondet3, main_~sum~0, main_#t~nondet2, main_~i~0, main_~n~0] {214#true} is VALID [2022-04-07 23:31:41,165 INFO L272 TraceCheckUtils]: 4: Hoare triple {214#true} [49] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {214#true} is VALID [2022-04-07 23:31:41,166 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {214#true} {214#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {214#true} is VALID [2022-04-07 23:31:41,166 INFO L290 TraceCheckUtils]: 2: Hoare triple {214#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {214#true} is VALID [2022-04-07 23:31:41,166 INFO L290 TraceCheckUtils]: 1: Hoare triple {214#true} [50] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 26) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {214#true} is VALID [2022-04-07 23:31:41,166 INFO L272 TraceCheckUtils]: 0: Hoare triple {214#true} [48] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {214#true} is VALID [2022-04-07 23:31:41,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 23:31:41,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509472543] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-07 23:31:41,166 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-07 23:31:41,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 10 [2022-04-07 23:31:41,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507811804] [2022-04-07 23:31:41,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-07 23:31:41,167 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-04-07 23:31:41,168 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 23:31:41,168 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 10 states, 10 states have (on average 1.4) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:41,181 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 23:31:41,182 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-07 23:31:41,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 23:31:41,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-07 23:31:41,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-04-07 23:31:41,183 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:41,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:31:41,289 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-04-07 23:31:41,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 23:31:41,289 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-04-07 23:31:41,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 23:31:41,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:41,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. [2022-04-07 23:31:41,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:41,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. [2022-04-07 23:31:41,297 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 13 transitions. [2022-04-07 23:31:41,307 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 23:31:41,307 INFO L225 Difference]: With dead ends: 14 [2022-04-07 23:31:41,307 INFO L226 Difference]: Without dead ends: 0 [2022-04-07 23:31:41,310 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-04-07 23:31:41,312 INFO L913 BasicCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 23:31:41,314 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 40 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 23:31:41,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-07 23:31:41,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-07 23:31:41,315 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 23:31:41,315 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-07 23:31:41,315 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-07 23:31:41,315 INFO L87 Difference]: Start difference. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-07 23:31:41,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:31:41,315 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-07 23:31:41,316 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 23:31:41,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 23:31:41,316 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 23:31:41,316 INFO L74 IsIncluded]: Start isIncluded. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-04-07 23:31:41,316 INFO L87 Difference]: Start difference. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-04-07 23:31:41,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 23:31:41,316 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-07 23:31:41,316 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 23:31:41,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 23:31:41,316 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 23:31:41,316 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 23:31:41,316 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 23:31:41,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-07 23:31:41,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-07 23:31:41,317 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-04-07 23:31:41,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 23:31:41,317 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-07 23:31:41,318 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 23:31:41,318 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 23:31:41,319 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 23:31:41,321 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-07 23:31:41,339 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-07 23:31:41,535 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 [2022-04-07 23:31:41,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-07 23:31:41,560 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-04-07 23:31:41,560 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-04-07 23:31:41,560 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-04-07 23:31:41,560 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-07 23:31:41,560 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-04-07 23:31:41,560 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-04-07 23:31:41,560 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-04-07 23:31:41,560 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 19 30) the Hoare annotation is: true [2022-04-07 23:31:41,560 INFO L882 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-04-07 23:31:41,560 INFO L882 garLoopResultBuilder]: For program point mainFINAL(lines 19 30) no Hoare annotation was computed. [2022-04-07 23:31:41,560 INFO L878 garLoopResultBuilder]: At program point L24-2(lines 24 27) the Hoare annotation is: (and (<= 0 main_~i~0) (<= 0 main_~sum~0)) [2022-04-07 23:31:41,561 INFO L882 garLoopResultBuilder]: For program point mainEXIT(lines 19 30) no Hoare annotation was computed. [2022-04-07 23:31:41,561 INFO L878 garLoopResultBuilder]: At program point L24-3(lines 24 27) the Hoare annotation is: (<= 0 main_~sum~0) [2022-04-07 23:31:41,561 INFO L882 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2022-04-07 23:31:41,561 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 14 18) the Hoare annotation is: true [2022-04-07 23:31:41,561 INFO L882 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2022-04-07 23:31:41,561 INFO L882 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2022-04-07 23:31:41,561 INFO L882 garLoopResultBuilder]: For program point L15-2(lines 14 18) no Hoare annotation was computed. [2022-04-07 23:31:41,561 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2022-04-07 23:31:41,561 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 18) no Hoare annotation was computed. [2022-04-07 23:31:41,563 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-04-07 23:31:41,564 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-07 23:31:41,567 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-07 23:31:41,567 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2022-04-07 23:31:41,567 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-04-07 23:31:41,567 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-07 23:31:41,567 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2022-04-07 23:31:41,567 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2022-04-07 23:31:41,567 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-04-07 23:31:41,568 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-04-07 23:31:41,568 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-07 23:31:41,568 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-07 23:31:41,573 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2022-04-07 23:31:41,573 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2022-04-07 23:31:41,573 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2022-04-07 23:31:41,573 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-07 23:31:41,573 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-07 23:31:41,573 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-07 23:31:41,573 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2022-04-07 23:31:41,573 INFO L163 areAnnotationChecker]: CFG has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-07 23:31:41,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 11:31:41 BasicIcfg [2022-04-07 23:31:41,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-07 23:31:41,580 INFO L158 Benchmark]: Toolchain (without parser) took 2121.94ms. Allocated memory was 255.9MB in the beginning and 406.8MB in the end (delta: 151.0MB). Free memory was 199.3MB in the beginning and 326.1MB in the end (delta: -126.8MB). Peak memory consumption was 24.2MB. Max. memory is 8.0GB. [2022-04-07 23:31:41,580 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 255.9MB. Free memory is still 215.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-07 23:31:41,580 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.84ms. Allocated memory was 255.9MB in the beginning and 406.8MB in the end (delta: 151.0MB). Free memory was 199.1MB in the beginning and 377.8MB in the end (delta: -178.7MB). Peak memory consumption was 6.1MB. Max. memory is 8.0GB. [2022-04-07 23:31:41,581 INFO L158 Benchmark]: Boogie Preprocessor took 37.52ms. Allocated memory is still 406.8MB. Free memory was 377.8MB in the beginning and 376.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-07 23:31:41,581 INFO L158 Benchmark]: RCFGBuilder took 275.95ms. Allocated memory is still 406.8MB. Free memory was 376.3MB in the beginning and 364.9MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-07 23:31:41,581 INFO L158 Benchmark]: IcfgTransformer took 54.18ms. Allocated memory is still 406.8MB. Free memory was 364.9MB in the beginning and 363.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-07 23:31:41,581 INFO L158 Benchmark]: TraceAbstraction took 1558.93ms. Allocated memory is still 406.8MB. Free memory was 362.9MB in the beginning and 326.1MB in the end (delta: 36.7MB). Peak memory consumption was 37.0MB. Max. memory is 8.0GB. [2022-04-07 23:31:41,582 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 255.9MB. Free memory is still 215.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 189.84ms. Allocated memory was 255.9MB in the beginning and 406.8MB in the end (delta: 151.0MB). Free memory was 199.1MB in the beginning and 377.8MB in the end (delta: -178.7MB). Peak memory consumption was 6.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.52ms. Allocated memory is still 406.8MB. Free memory was 377.8MB in the beginning and 376.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 275.95ms. Allocated memory is still 406.8MB. Free memory was 376.3MB in the beginning and 364.9MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 54.18ms. Allocated memory is still 406.8MB. Free memory was 364.9MB in the beginning and 363.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1558.93ms. Allocated memory is still 406.8MB. Free memory was 362.9MB in the beginning and 326.1MB in the end (delta: 36.7MB). Peak memory consumption was 37.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 91 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 57 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 39 mSDtfsCounter, 57 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 11 NumberOfFragments, 21 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 126 SizeOfPredicates, 3 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 0 <= i && 0 <= sum RESULT: Ultimate proved your program to be correct! [2022-04-07 23:31:41,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...