/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/loops/terminator_03-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-15 00:06:32,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-15 00:06:32,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-15 00:06:32,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-15 00:06:32,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-15 00:06:32,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-15 00:06:32,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-15 00:06:32,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-15 00:06:32,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-15 00:06:32,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-15 00:06:32,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-15 00:06:32,564 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-15 00:06:32,565 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-15 00:06:32,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-15 00:06:32,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-15 00:06:32,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-15 00:06:32,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-15 00:06:32,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-15 00:06:32,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-15 00:06:32,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-15 00:06:32,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-15 00:06:32,581 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-15 00:06:32,599 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-15 00:06:32,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-15 00:06:32,600 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-15 00:06:32,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-15 00:06:32,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-15 00:06:32,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-15 00:06:32,601 INFO L138 SettingsManager]: * Use SBE=true [2022-04-15 00:06:32,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-15 00:06:32,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-15 00:06:32,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-15 00:06:32,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-15 00:06:32,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-15 00:06:32,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-15 00:06:32,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-15 00:06:32,602 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-15 00:06:32,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-15 00:06:32,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-15 00:06:32,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-15 00:06:32,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-15 00:06:32,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 00:06:32,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-15 00:06:32,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-15 00:06:32,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-15 00:06:32,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-15 00:06:32,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-15 00:06:32,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-15 00:06:32,603 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-15 00:06:32,603 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-15 00:06:32,604 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-15 00:06:32,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-15 00:06:32,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-15 00:06:32,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-15 00:06:32,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-15 00:06:32,797 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-15 00:06:32,798 INFO L275 PluginConnector]: CDTParser initialized [2022-04-15 00:06:32,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_03-2.i [2022-04-15 00:06:32,831 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/974198727/23a11a70e1064b57b01b5db55c755b97/FLAGee2bf7c24 [2022-04-15 00:06:33,189 INFO L306 CDTParser]: Found 1 translation units. [2022-04-15 00:06:33,190 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_03-2.i [2022-04-15 00:06:33,195 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/974198727/23a11a70e1064b57b01b5db55c755b97/FLAGee2bf7c24 [2022-04-15 00:06:33,631 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/974198727/23a11a70e1064b57b01b5db55c755b97 [2022-04-15 00:06:33,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-15 00:06:33,634 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-15 00:06:33,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-15 00:06:33,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-15 00:06:33,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-15 00:06:33,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:06:33" (1/1) ... [2022-04-15 00:06:33,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39c9651e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:33, skipping insertion in model container [2022-04-15 00:06:33,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:06:33" (1/1) ... [2022-04-15 00:06:33,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-15 00:06:33,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-15 00:06:33,775 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/terminator_03-2.i[902,915] [2022-04-15 00:06:33,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 00:06:33,788 INFO L203 MainTranslator]: Completed pre-run [2022-04-15 00:06:33,796 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/terminator_03-2.i[902,915] [2022-04-15 00:06:33,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 00:06:33,808 INFO L208 MainTranslator]: Completed translation [2022-04-15 00:06:33,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:33 WrapperNode [2022-04-15 00:06:33,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-15 00:06:33,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-15 00:06:33,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-15 00:06:33,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-15 00:06:33,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:33" (1/1) ... [2022-04-15 00:06:33,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:33" (1/1) ... [2022-04-15 00:06:33,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:33" (1/1) ... [2022-04-15 00:06:33,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:33" (1/1) ... [2022-04-15 00:06:33,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:33" (1/1) ... [2022-04-15 00:06:33,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:33" (1/1) ... [2022-04-15 00:06:33,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:33" (1/1) ... [2022-04-15 00:06:33,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-15 00:06:33,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-15 00:06:33,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-15 00:06:33,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-15 00:06:33,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:33" (1/1) ... [2022-04-15 00:06:33,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 00:06:33,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 00:06:33,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-15 00:06:33,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-15 00:06:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-15 00:06:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-15 00:06:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-15 00:06:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-15 00:06:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-15 00:06:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-15 00:06:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-15 00:06:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-15 00:06:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-04-15 00:06:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-04-15 00:06:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-15 00:06:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-15 00:06:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-15 00:06:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-15 00:06:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-15 00:06:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2022-04-15 00:06:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-15 00:06:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-15 00:06:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-15 00:06:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-15 00:06:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-15 00:06:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-15 00:06:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-15 00:06:33,949 INFO L234 CfgBuilder]: Building ICFG [2022-04-15 00:06:33,950 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-15 00:06:34,109 INFO L275 CfgBuilder]: Performing block encoding [2022-04-15 00:06:34,113 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-15 00:06:34,113 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-15 00:06:34,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:06:34 BoogieIcfgContainer [2022-04-15 00:06:34,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-15 00:06:34,115 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-15 00:06:34,115 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-15 00:06:34,116 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-15 00:06:34,118 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:06:34" (1/1) ... [2022-04-15 00:06:34,119 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-15 00:06:34,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.04 12:06:34 BasicIcfg [2022-04-15 00:06:34,136 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-15 00:06:34,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-15 00:06:34,137 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-15 00:06:34,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-15 00:06:34,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 12:06:33" (1/4) ... [2022-04-15 00:06:34,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe9da1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:06:34, skipping insertion in model container [2022-04-15 00:06:34,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:33" (2/4) ... [2022-04-15 00:06:34,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe9da1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:06:34, skipping insertion in model container [2022-04-15 00:06:34,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:06:34" (3/4) ... [2022-04-15 00:06:34,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe9da1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 12:06:34, skipping insertion in model container [2022-04-15 00:06:34,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.04 12:06:34" (4/4) ... [2022-04-15 00:06:34,141 INFO L111 eAbstractionObserver]: Analyzing ICFG terminator_03-2.iqvasr [2022-04-15 00:06:34,146 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-15 00:06:34,146 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-15 00:06:34,191 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-15 00:06:34,204 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 [2022-04-15 00:06:34,204 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-15 00:06:34,219 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 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) [2022-04-15 00:06:34,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-15 00:06:34,222 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 00:06:34,222 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 00:06:34,223 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 00:06:34,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 00:06:34,228 INFO L85 PathProgramCache]: Analyzing trace with hash 196075422, now seen corresponding path program 1 times [2022-04-15 00:06:34,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 00:06:34,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829389011] [2022-04-15 00:06:34,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 00:06:34,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 00:06:34,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:06:34,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 00:06:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:06:34,494 INFO L290 TraceCheckUtils]: 0: Hoare triple {32#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [65] 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) (< 0 |v_#StackHeapBarrier_1|) (= (select |v_#length_1| 2) 18) (= |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] {24#true} is VALID [2022-04-15 00:06:34,495 INFO L290 TraceCheckUtils]: 1: Hoare triple {24#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#true} is VALID [2022-04-15 00:06:34,495 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {24#true} {24#true} [85] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#true} is VALID [2022-04-15 00:06:34,498 INFO L272 TraceCheckUtils]: 0: Hoare triple {24#true} [63] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 00:06:34,499 INFO L290 TraceCheckUtils]: 1: Hoare triple {32#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [65] 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) (< 0 |v_#StackHeapBarrier_1|) (= (select |v_#length_1| 2) 18) (= |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] {24#true} is VALID [2022-04-15 00:06:34,499 INFO L290 TraceCheckUtils]: 2: Hoare triple {24#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#true} is VALID [2022-04-15 00:06:34,499 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {24#true} {24#true} [85] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#true} is VALID [2022-04-15 00:06:34,499 INFO L272 TraceCheckUtils]: 4: Hoare triple {24#true} [64] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#true} is VALID [2022-04-15 00:06:34,500 INFO L290 TraceCheckUtils]: 5: Hoare triple {24#true} [67] mainENTRY-->L28: Formula: (and (<= |v_main_#t~nondet1_2| 2147483647) (= v_main_~x~0_3 |v_main_#t~nondet1_2|) (<= 0 (+ |v_main_#t~nondet2_2| 2147483648)) (<= |v_main_#t~nondet2_2| 2147483647) (= v_main_~y~0_6 |v_main_#t~nondet2_2|) (<= 0 (+ |v_main_#t~nondet1_2| 2147483648))) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~x~0=v_main_~x~0_3, main_~y~0=v_main_~y~0_6} AuxVars[] AssignedVars[main_~x~0, main_#t~nondet1, main_#t~nondet2, main_~y~0] {24#true} is VALID [2022-04-15 00:06:34,500 INFO L290 TraceCheckUtils]: 6: Hoare triple {24#true} [70] L28-->L29: Formula: (<= v_main_~y~0_2 1000000) InVars {main_~y~0=v_main_~y~0_2} OutVars{main_~y~0=v_main_~y~0_2} AuxVars[] AssignedVars[] {24#true} is VALID [2022-04-15 00:06:34,501 INFO L290 TraceCheckUtils]: 7: Hoare triple {24#true} [73] L29-->L29-1: Formula: (not (< 0 v_main_~y~0_3)) InVars {main_~y~0=v_main_~y~0_3} OutVars{main_~y~0=v_main_~y~0_3} AuxVars[] AssignedVars[] {29#(or (<= 100 main_~x~0) (<= main_~y~0 0))} is VALID [2022-04-15 00:06:34,502 INFO L272 TraceCheckUtils]: 8: Hoare triple {29#(or (<= 100 main_~x~0) (<= main_~y~0 0))} [77] L29-1-->__VERIFIER_assertENTRY: Formula: (= (ite (or (and (< 0 v_main_~y~0_8) (<= 100 v_main_~x~0_6)) (<= v_main_~y~0_8 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {30#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-15 00:06:34,503 INFO L290 TraceCheckUtils]: 9: Hoare triple {30#(not (= |__VERIFIER_assert_#in~cond| 0))} [79] __VERIFIER_assertENTRY-->L18: Formula: (= v___VERIFIER_assert_~cond_3 |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_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {31#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-15 00:06:34,503 INFO L290 TraceCheckUtils]: 10: Hoare triple {31#(not (= __VERIFIER_assert_~cond 0))} [80] L18-->L19: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {25#false} is VALID [2022-04-15 00:06:34,503 INFO L290 TraceCheckUtils]: 11: Hoare triple {25#false} [82] L19-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {25#false} is VALID [2022-04-15 00:06:34,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 00:06:34,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 00:06:34,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829389011] [2022-04-15 00:06:34,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829389011] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 00:06:34,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 00:06:34,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-15 00:06:34,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900483274] [2022-04-15 00:06:34,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 00:06:34,512 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) 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 [2022-04-15 00:06:34,514 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 00:06:34,516 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 5 states have (on average 1.6) 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) [2022-04-15 00:06:34,531 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 00:06:34,532 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-15 00:06:34,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-15 00:06:34,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-15 00:06:34,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-15 00:06:34,554 INFO L87 Difference]: Start difference. First operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 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 6 states, 5 states have (on average 1.6) 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) [2022-04-15 00:06:34,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:34,760 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2022-04-15 00:06:34,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-15 00:06:34,760 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) 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 [2022-04-15 00:06:34,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 00:06:34,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.6) 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) [2022-04-15 00:06:34,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 38 transitions. [2022-04-15 00:06:34,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.6) 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) [2022-04-15 00:06:34,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 38 transitions. [2022-04-15 00:06:34,774 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 38 transitions. [2022-04-15 00:06:34,805 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 00:06:34,808 INFO L225 Difference]: With dead ends: 33 [2022-04-15 00:06:34,808 INFO L226 Difference]: Without dead ends: 0 [2022-04-15 00:06:34,810 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-15 00:06:34,812 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 19 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-15 00:06:34,813 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 41 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-15 00:06:34,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-15 00:06:34,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-15 00:06:34,826 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 00:06:34,827 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) [2022-04-15 00:06:34,827 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) [2022-04-15 00:06:34,827 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) [2022-04-15 00:06:34,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:34,828 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-15 00:06:34,828 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-15 00:06:34,828 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 00:06:34,828 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 00:06:34,828 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. [2022-04-15 00:06:34,837 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. [2022-04-15 00:06:34,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:34,837 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-15 00:06:34,837 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-15 00:06:34,837 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 00:06:34,838 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 00:06:34,838 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 00:06:34,838 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 00:06:34,838 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) [2022-04-15 00:06:34,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-15 00:06:34,839 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-04-15 00:06:34,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 00:06:34,840 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-15 00:06:34,840 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) 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) [2022-04-15 00:06:34,840 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-15 00:06:34,840 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 00:06:34,842 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-15 00:06:34,843 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-15 00:06:34,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-15 00:06:34,862 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|)) [2022-04-15 00:06:34,862 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-04-15 00:06:34,862 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-04-15 00:06:34,862 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-15 00:06:34,862 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-04-15 00:06:34,862 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-04-15 00:06:34,862 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-04-15 00:06:34,862 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 25 36) the Hoare annotation is: true [2022-04-15 00:06:34,863 INFO L882 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2022-04-15 00:06:34,863 INFO L882 garLoopResultBuilder]: For program point mainFINAL(lines 25 36) no Hoare annotation was computed. [2022-04-15 00:06:34,863 INFO L882 garLoopResultBuilder]: For program point L29(lines 29 33) no Hoare annotation was computed. [2022-04-15 00:06:34,863 INFO L882 garLoopResultBuilder]: For program point mainEXIT(lines 25 36) no Hoare annotation was computed. [2022-04-15 00:06:34,863 INFO L885 garLoopResultBuilder]: At program point L30-2(lines 30 32) the Hoare annotation is: true [2022-04-15 00:06:34,863 INFO L878 garLoopResultBuilder]: At program point L29-1(lines 29 33) the Hoare annotation is: (or (<= 100 main_~x~0) (<= main_~y~0 0)) [2022-04-15 00:06:34,863 INFO L882 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2022-04-15 00:06:34,863 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2022-04-15 00:06:34,863 INFO L882 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2022-04-15 00:06:34,864 INFO L882 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-04-15 00:06:34,864 INFO L882 garLoopResultBuilder]: For program point L18-2(lines 17 22) no Hoare annotation was computed. [2022-04-15 00:06:34,864 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2022-04-15 00:06:34,864 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 17 22) no Hoare annotation was computed. [2022-04-15 00:06:34,866 INFO L719 BasicCegarLoop]: Path program histogram: [1] [2022-04-15 00:06:34,867 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-15 00:06:34,871 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-15 00:06:34,871 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2022-04-15 00:06:34,871 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2022-04-15 00:06:34,871 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-15 00:06:34,871 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2022-04-15 00:06:34,871 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2022-04-15 00:06:34,871 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2022-04-15 00:06:34,871 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2022-04-15 00:06:34,871 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-15 00:06:34,871 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-15 00:06:34,871 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2022-04-15 00:06:34,872 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2022-04-15 00:06:34,872 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2022-04-15 00:06:34,872 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2022-04-15 00:06:34,872 WARN L170 areAnnotationChecker]: L18-2 has no Hoare annotation [2022-04-15 00:06:34,872 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-15 00:06:34,872 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-15 00:06:34,873 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-15 00:06:34,873 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-04-15 00:06:34,873 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. [2022-04-15 00:06:34,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 12:06:34 BasicIcfg [2022-04-15 00:06:34,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-15 00:06:34,877 INFO L158 Benchmark]: Toolchain (without parser) took 1243.24ms. Allocated memory was 178.3MB in the beginning and 216.0MB in the end (delta: 37.7MB). Free memory was 154.6MB in the beginning and 186.1MB in the end (delta: -31.5MB). Peak memory consumption was 6.0MB. Max. memory is 8.0GB. [2022-04-15 00:06:34,877 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 178.3MB. Free memory is still 139.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-15 00:06:34,878 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.61ms. Allocated memory is still 178.3MB. Free memory was 154.6MB in the beginning and 151.7MB in the end (delta: 2.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-04-15 00:06:34,878 INFO L158 Benchmark]: Boogie Preprocessor took 18.94ms. Allocated memory is still 178.3MB. Free memory was 151.7MB in the beginning and 150.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-15 00:06:34,878 INFO L158 Benchmark]: RCFGBuilder took 285.73ms. Allocated memory is still 178.3MB. Free memory was 150.2MB in the beginning and 139.1MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-15 00:06:34,878 INFO L158 Benchmark]: IcfgTransformer took 20.69ms. Allocated memory is still 178.3MB. Free memory was 139.1MB in the beginning and 137.4MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-15 00:06:34,879 INFO L158 Benchmark]: TraceAbstraction took 739.06ms. Allocated memory was 178.3MB in the beginning and 216.0MB in the end (delta: 37.7MB). Free memory was 137.0MB in the beginning and 186.1MB in the end (delta: -49.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-15 00:06:34,880 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 178.3MB. Free memory is still 139.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 174.61ms. Allocated memory is still 178.3MB. Free memory was 154.6MB in the beginning and 151.7MB in the end (delta: 2.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.94ms. Allocated memory is still 178.3MB. Free memory was 151.7MB in the beginning and 150.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 285.73ms. Allocated memory is still 178.3MB. Free memory was 150.2MB in the beginning and 139.1MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 20.69ms. Allocated memory is still 178.3MB. Free memory was 139.1MB in the beginning and 137.4MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 739.06ms. Allocated memory was 178.3MB in the beginning and 216.0MB in the end (delta: 37.7MB). Free memory was 137.0MB in the beginning and 186.1MB in the end (delta: -49.1MB). There was no memory consumed. 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: 19]: 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, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 20 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 19 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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: 30]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-04-15 00:06:34,904 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...