/usr/bin/java -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/loops/sum03-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 19:20:52,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 19:20:52,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 19:20:52,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 19:20:52,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 19:20:52,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 19:20:52,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 19:20:52,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 19:20:52,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 19:20:52,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 19:20:52,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 19:20:52,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 19:20:52,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 19:20:52,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 19:20:52,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 19:20:52,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 19:20:52,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 19:20:52,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 19:20:52,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 19:20:52,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 19:20:52,387 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 19:20:52,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 19:20:52,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 19:20:52,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 19:20:52,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 19:20:52,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-17 19:20:52,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 19:20:52,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 19:20:52,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 19:20:52,401 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-17 19:20:52,425 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 19:20:52,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 19:20:52,427 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-17 19:20:52,427 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-17 19:20:52,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-17 19:20:52,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-17 19:20:52,428 INFO L138 SettingsManager]: * Use SBE=true [2022-03-17 19:20:52,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 19:20:52,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 19:20:52,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 19:20:52,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 19:20:52,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 19:20:52,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 19:20:52,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 19:20:52,430 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 19:20:52,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 19:20:52,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 19:20:52,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 19:20:52,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 19:20:52,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 19:20:52,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 19:20:52,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-17 19:20:52,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-17 19:20:52,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 19:20:52,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-17 19:20:52,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-17 19:20:52,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-17 19:20:52,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-17 19:20:52,432 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 19:20:52,432 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 19:20:52,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 19:20:52,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 19:20:52,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 19:20:52,618 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 19:20:52,618 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 19:20:52,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum03-2.i [2022-03-17 19:20:52,676 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/730b8eef8/be2567392a4540ecb73d794e5f13bd3f/FLAG158fd77ba [2022-03-17 19:20:53,021 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 19:20:53,022 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum03-2.i [2022-03-17 19:20:53,030 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/730b8eef8/be2567392a4540ecb73d794e5f13bd3f/FLAG158fd77ba [2022-03-17 19:20:53,044 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/730b8eef8/be2567392a4540ecb73d794e5f13bd3f [2022-03-17 19:20:53,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 19:20:53,048 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 19:20:53,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 19:20:53,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 19:20:53,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 19:20:53,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:20:53" (1/1) ... [2022-03-17 19:20:53,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3202b710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:20:53, skipping insertion in model container [2022-03-17 19:20:53,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:20:53" (1/1) ... [2022-03-17 19:20:53,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 19:20:53,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 19:20:53,188 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/sum03-2.i[807,820] [2022-03-17 19:20:53,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 19:20:53,199 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 19:20:53,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/sum03-2.i[807,820] [2022-03-17 19:20:53,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 19:20:53,216 INFO L208 MainTranslator]: Completed translation [2022-03-17 19:20:53,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:20:53 WrapperNode [2022-03-17 19:20:53,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 19:20:53,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 19:20:53,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 19:20:53,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 19:20:53,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:20:53" (1/1) ... [2022-03-17 19:20:53,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:20:53" (1/1) ... [2022-03-17 19:20:53,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:20:53" (1/1) ... [2022-03-17 19:20:53,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:20:53" (1/1) ... [2022-03-17 19:20:53,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:20:53" (1/1) ... [2022-03-17 19:20:53,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:20:53" (1/1) ... [2022-03-17 19:20:53,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:20:53" (1/1) ... [2022-03-17 19:20:53,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 19:20:53,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 19:20:53,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 19:20:53,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 19:20:53,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:20:53" (1/1) ... [2022-03-17 19:20:53,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 19:20:53,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:20:53,259 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) [2022-03-17 19:20:53,267 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 [2022-03-17 19:20:53,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 19:20:53,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 19:20:53,291 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 19:20:53,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-17 19:20:53,291 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 19:20:53,291 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 19:20:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 19:20:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-03-17 19:20:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-03-17 19:20:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 19:20:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 19:20:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-17 19:20:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-03-17 19:20:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 19:20:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 19:20:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 19:20:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 19:20:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 19:20:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 19:20:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 19:20:53,344 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 19:20:53,345 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 19:20:53,451 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 19:20:53,455 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 19:20:53,455 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 19:20:53,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 07:20:53 BoogieIcfgContainer [2022-03-17 19:20:53,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 19:20:53,476 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 19:20:53,476 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 19:20:53,477 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 19:20:53,479 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 07:20:53" (1/1) ... [2022-03-17 19:20:53,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 07:20:53 BasicIcfg [2022-03-17 19:20:53,489 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 19:20:53,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 19:20:53,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 19:20:53,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 19:20:53,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:20:53" (1/4) ... [2022-03-17 19:20:53,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba449e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:20:53, skipping insertion in model container [2022-03-17 19:20:53,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:20:53" (2/4) ... [2022-03-17 19:20:53,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba449e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:20:53, skipping insertion in model container [2022-03-17 19:20:53,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 07:20:53" (3/4) ... [2022-03-17 19:20:53,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba449e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 07:20:53, skipping insertion in model container [2022-03-17 19:20:53,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 07:20:53" (4/4) ... [2022-03-17 19:20:53,494 INFO L111 eAbstractionObserver]: Analyzing ICFG sum03-2.iqvasr [2022-03-17 19:20:53,497 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-17 19:20:53,497 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 19:20:53,529 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 19:20:53,543 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 [2022-03-17 19:20:53,543 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 19:20:53,555 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-17 19:20:53,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-17 19:20:53,559 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:20:53,559 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:20:53,560 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:20:53,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:20:53,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1196085861, now seen corresponding path program 1 times [2022-03-17 19:20:53,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:20:53,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140382733] [2022-03-17 19:20:53,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:20:53,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:20:53,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:20:53,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:20:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:20:53,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:20:53,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:20:53,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140382733] [2022-03-17 19:20:53,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140382733] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:20:53,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:20:53,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-17 19:20:53,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919966187] [2022-03-17 19:20:53,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:20:53,971 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 19:20:53,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:20:53,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 19:20:53,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-17 19:20:53,994 INFO L87 Difference]: Start difference. First operand has 18 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:20:54,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:20:54,136 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions. [2022-03-17 19:20:54,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 19:20:54,138 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-03-17 19:20:54,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:20:54,144 INFO L225 Difference]: With dead ends: 33 [2022-03-17 19:20:54,144 INFO L226 Difference]: Without dead ends: 21 [2022-03-17 19:20:54,146 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-03-17 19:20:54,150 INFO L912 BasicCegarLoop]: 10 mSDtfsCounter, 16 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:20:54,151 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 27 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-17 19:20:54,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-03-17 19:20:54,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2022-03-17 19:20:54,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-17 19:20:54,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2022-03-17 19:20:54,187 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2022-03-17 19:20:54,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:20:54,187 INFO L478 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2022-03-17 19:20:54,188 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:20:54,188 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2022-03-17 19:20:54,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-03-17 19:20:54,189 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:20:54,189 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:20:54,189 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 19:20:54,190 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:20:54,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:20:54,196 INFO L85 PathProgramCache]: Analyzing trace with hash 593480926, now seen corresponding path program 1 times [2022-03-17 19:20:54,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:20:54,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368969394] [2022-03-17 19:20:54,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:20:54,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:20:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:20:54,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:20:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:20:54,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-03-17 19:20:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:20:54,429 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:20:54,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:20:54,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368969394] [2022-03-17 19:20:54,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368969394] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:20:54,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714528845] [2022-03-17 19:20:54,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:20:54,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:20:54,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:20:54,432 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) [2022-03-17 19:20:54,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 19:20:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:20:54,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 15 conjunts are in the unsatisfiable core [2022-03-17 19:20:54,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:20:54,709 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:20:54,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 19:20:54,947 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:20:54,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714528845] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 19:20:54,948 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 19:20:54,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2022-03-17 19:20:54,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529733912] [2022-03-17 19:20:54,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 19:20:54,949 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-17 19:20:54,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:20:54,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-17 19:20:54,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-03-17 19:20:54,950 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 14 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 6 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-17 19:20:55,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:20:55,302 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-03-17 19:20:55,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-17 19:20:55,302 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 6 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 17 [2022-03-17 19:20:55,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:20:55,303 INFO L225 Difference]: With dead ends: 25 [2022-03-17 19:20:55,303 INFO L226 Difference]: Without dead ends: 0 [2022-03-17 19:20:55,303 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-03-17 19:20:55,304 INFO L912 BasicCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:20:55,305 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 51 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-17 19:20:55,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-17 19:20:55,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-17 19:20:55,305 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) [2022-03-17 19:20:55,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-17 19:20:55,305 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-03-17 19:20:55,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:20:55,306 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-17 19:20:55,306 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 6 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-17 19:20:55,306 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-17 19:20:55,306 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-17 19:20:55,308 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-17 19:20:55,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-17 19:20:55,508 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:20:55,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-03-17 19:20:55,577 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|)) [2022-03-17 19:20:55,577 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-03-17 19:20:55,577 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-03-17 19:20:55,577 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-03-17 19:20:55,577 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-03-17 19:20:55,577 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-03-17 19:20:55,577 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-03-17 19:20:55,577 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 20 29) the Hoare annotation is: true [2022-03-17 19:20:55,577 INFO L878 garLoopResultBuilder]: At program point L27-1(lines 24 28) the Hoare annotation is: (= (mod (+ 2 main_~sn~0) 4294967296) (mod (+ (* main_~x~0 2) 2) 4294967296)) [2022-03-17 19:20:55,578 INFO L882 garLoopResultBuilder]: For program point L24-2(lines 20 29) no Hoare annotation was computed. [2022-03-17 19:20:55,578 INFO L878 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (= (mod (+ 2 main_~sn~0) 4294967296) (mod (+ (* main_~x~0 2) 2) 4294967296)) [2022-03-17 19:20:55,578 INFO L882 garLoopResultBuilder]: For program point mainEXIT(lines 20 29) no Hoare annotation was computed. [2022-03-17 19:20:55,578 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 13 18) the Hoare annotation is: true [2022-03-17 19:20:55,578 INFO L882 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2022-03-17 19:20:55,578 INFO L882 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-03-17 19:20:55,578 INFO L882 garLoopResultBuilder]: For program point L14-2(lines 13 18) no Hoare annotation was computed. [2022-03-17 19:20:55,578 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2022-03-17 19:20:55,578 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 13 18) no Hoare annotation was computed. [2022-03-17 19:20:55,580 INFO L718 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-17 19:20:55,581 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-17 19:20:55,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 07:20:55 BasicIcfg [2022-03-17 19:20:55,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-17 19:20:55,590 INFO L158 Benchmark]: Toolchain (without parser) took 2541.44ms. Allocated memory was 178.3MB in the beginning and 238.0MB in the end (delta: 59.8MB). Free memory was 127.5MB in the beginning and 180.7MB in the end (delta: -53.2MB). Peak memory consumption was 5.9MB. Max. memory is 8.0GB. [2022-03-17 19:20:55,590 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 178.3MB. Free memory is still 143.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-17 19:20:55,590 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.99ms. Allocated memory was 178.3MB in the beginning and 238.0MB in the end (delta: 59.8MB). Free memory was 127.4MB in the beginning and 215.2MB in the end (delta: -87.8MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB. [2022-03-17 19:20:55,590 INFO L158 Benchmark]: Boogie Preprocessor took 16.36ms. Allocated memory is still 238.0MB. Free memory was 215.2MB in the beginning and 213.9MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-17 19:20:55,591 INFO L158 Benchmark]: RCFGBuilder took 240.88ms. Allocated memory is still 238.0MB. Free memory was 213.9MB in the beginning and 203.7MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-17 19:20:55,591 INFO L158 Benchmark]: IcfgTransformer took 12.34ms. Allocated memory is still 238.0MB. Free memory was 203.7MB in the beginning and 202.6MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-17 19:20:55,591 INFO L158 Benchmark]: TraceAbstraction took 2099.38ms. Allocated memory is still 238.0MB. Free memory was 202.4MB in the beginning and 180.7MB in the end (delta: 21.7MB). Peak memory consumption was 21.7MB. Max. memory is 8.0GB. [2022-03-17 19:20:55,593 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 178.3MB. Free memory is still 143.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 167.99ms. Allocated memory was 178.3MB in the beginning and 238.0MB in the end (delta: 59.8MB). Free memory was 127.4MB in the beginning and 215.2MB in the end (delta: -87.8MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.36ms. Allocated memory is still 238.0MB. Free memory was 215.2MB in the beginning and 213.9MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 240.88ms. Allocated memory is still 238.0MB. Free memory was 213.9MB in the beginning and 203.7MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 12.34ms. Allocated memory is still 238.0MB. Free memory was 203.7MB in the beginning and 202.6MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 2099.38ms. Allocated memory is still 238.0MB. Free memory was 202.4MB in the beginning and 180.7MB in the end (delta: 21.7MB). Peak memory consumption was 21.7MB. 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: 15]: 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, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 118 IncrementalHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 19 mSDtfsCounter, 118 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=1, InterpolantAutomatonStates: 18, 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 20 NumberOfFragments, 37 HoareAnnotationTreeSize, 11 FomulaSimplifications, 4 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 221 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 345 SizeOfPredicates, 1 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 6/12 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: (2 + sn) % 4294967296 == (x * 2 + 2) % 4294967296 RESULT: Ultimate proved your program to be correct! [2022-03-17 19:20:55,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...