/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/loop-lit/gsv2008.c.i.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 19:42:16,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 19:42:16,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 19:42:16,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 19:42:16,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 19:42:16,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 19:42:16,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 19:42:16,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 19:42:16,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 19:42:16,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 19:42:16,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 19:42:16,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 19:42:16,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 19:42:16,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 19:42:16,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 19:42:16,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 19:42:16,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 19:42:16,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 19:42:16,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 19:42:16,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 19:42:16,810 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 19:42:16,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 19:42:16,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 19:42:16,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 19:42:16,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 19:42:16,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-17 19:42:16,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 19:42:16,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 19:42:16,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 19:42:16,836 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 19:42:16,858 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 19:42:16,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 19:42:16,860 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-17 19:42:16,860 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-17 19:42:16,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-17 19:42:16,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-17 19:42:16,861 INFO L138 SettingsManager]: * Use SBE=true [2022-03-17 19:42:16,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 19:42:16,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 19:42:16,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 19:42:16,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 19:42:16,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 19:42:16,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 19:42:16,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 19:42:16,862 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 19:42:16,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 19:42:16,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 19:42:16,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 19:42:16,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 19:42:16,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 19:42:16,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 19:42:16,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-17 19:42:16,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-17 19:42:16,864 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 19:42:16,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-17 19:42:16,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-17 19:42:16,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-17 19:42:16,864 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-17 19:42:16,865 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 19:42:16,865 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 19:42:17,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 19:42:17,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 19:42:17,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 19:42:17,067 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 19:42:17,067 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 19:42:17,068 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2022-03-17 19:42:17,112 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54b0d1b3b/4186b96fc3324b40af885b7e595f5604/FLAG9c926672f [2022-03-17 19:42:17,423 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 19:42:17,423 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2022-03-17 19:42:17,428 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54b0d1b3b/4186b96fc3324b40af885b7e595f5604/FLAG9c926672f [2022-03-17 19:42:17,842 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54b0d1b3b/4186b96fc3324b40af885b7e595f5604 [2022-03-17 19:42:17,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 19:42:17,844 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 19:42:17,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 19:42:17,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 19:42:17,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 19:42:17,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:42:17" (1/1) ... [2022-03-17 19:42:17,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c826a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:42:17, skipping insertion in model container [2022-03-17 19:42:17,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:42:17" (1/1) ... [2022-03-17 19:42:17,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 19:42:17,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 19:42:18,006 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251] [2022-03-17 19:42:18,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 19:42:18,018 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 19:42:18,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251] [2022-03-17 19:42:18,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 19:42:18,042 INFO L208 MainTranslator]: Completed translation [2022-03-17 19:42:18,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:42:18 WrapperNode [2022-03-17 19:42:18,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 19:42:18,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 19:42:18,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 19:42:18,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 19:42:18,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:42:18" (1/1) ... [2022-03-17 19:42:18,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:42:18" (1/1) ... [2022-03-17 19:42:18,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:42:18" (1/1) ... [2022-03-17 19:42:18,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:42:18" (1/1) ... [2022-03-17 19:42:18,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:42:18" (1/1) ... [2022-03-17 19:42:18,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:42:18" (1/1) ... [2022-03-17 19:42:18,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:42:18" (1/1) ... [2022-03-17 19:42:18,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 19:42:18,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 19:42:18,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 19:42:18,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 19:42:18,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:42:18" (1/1) ... [2022-03-17 19:42:18,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 19:42:18,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:42:18,102 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 19:42:18,120 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 19:42:18,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 19:42:18,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 19:42:18,128 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 19:42:18,128 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-17 19:42:18,129 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 19:42:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 19:42:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 19:42:18,130 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 19:42:18,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 19:42:18,130 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-17 19:42:18,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-17 19:42:18,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 19:42:18,130 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 19:42:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 19:42:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 19:42:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 19:42:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 19:42:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 19:42:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 19:42:18,169 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 19:42:18,170 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 19:42:18,240 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 19:42:18,243 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 19:42:18,243 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-17 19:42:18,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 07:42:18 BoogieIcfgContainer [2022-03-17 19:42:18,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 19:42:18,245 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 19:42:18,245 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 19:42:18,246 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 19:42:18,247 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 07:42:18" (1/1) ... [2022-03-17 19:42:18,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 07:42:18 BasicIcfg [2022-03-17 19:42:18,257 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 19:42:18,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 19:42:18,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 19:42:18,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 19:42:18,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:42:17" (1/4) ... [2022-03-17 19:42:18,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e9ed8f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:42:18, skipping insertion in model container [2022-03-17 19:42:18,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:42:18" (2/4) ... [2022-03-17 19:42:18,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e9ed8f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:42:18, skipping insertion in model container [2022-03-17 19:42:18,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 07:42:18" (3/4) ... [2022-03-17 19:42:18,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e9ed8f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 07:42:18, skipping insertion in model container [2022-03-17 19:42:18,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 07:42:18" (4/4) ... [2022-03-17 19:42:18,262 INFO L111 eAbstractionObserver]: Analyzing ICFG gsv2008.c.i.v+lhb-reducer.cqvasr [2022-03-17 19:42:18,264 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-17 19:42:18,265 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 19:42:18,323 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 19:42:18,329 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 19:42:18,329 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 19:42:18,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-03-17 19:42:18,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-03-17 19:42:18,344 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:42:18,344 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:42:18,345 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:42:18,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:42:18,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1405451419, now seen corresponding path program 1 times [2022-03-17 19:42:18,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:42:18,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329444047] [2022-03-17 19:42:18,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:42:18,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:42:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:42:18,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:42:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:42:18,559 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 19:42:18,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:42:18,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329444047] [2022-03-17 19:42:18,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329444047] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:42:18,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:42:18,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 19:42:18,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893549938] [2022-03-17 19:42:18,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:42:18,564 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 19:42:18,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:42:18,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 19:42:18,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:42:18,583 INFO L87 Difference]: Start difference. First operand has 18 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:42:18,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:42:18,656 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2022-03-17 19:42:18,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 19:42:18,658 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-03-17 19:42:18,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:42:18,662 INFO L225 Difference]: With dead ends: 33 [2022-03-17 19:42:18,662 INFO L226 Difference]: Without dead ends: 16 [2022-03-17 19:42:18,664 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 19:42:18,666 INFO L912 BasicCegarLoop]: 18 mSDtfsCounter, 16 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:42:18,667 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 54 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-17 19:42:18,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-03-17 19:42:18,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-03-17 19:42:18,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:42:18,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-03-17 19:42:18,686 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2022-03-17 19:42:18,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:42:18,687 INFO L478 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-03-17 19:42:18,687 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:42:18,687 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-03-17 19:42:18,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-17 19:42:18,687 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:42:18,688 INFO L500 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:42:18,688 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 19:42:18,688 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:42:18,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:42:18,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2020096506, now seen corresponding path program 1 times [2022-03-17 19:42:18,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:42:18,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45900059] [2022-03-17 19:42:18,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:42:18,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:42:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:42:18,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:42:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:42:18,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:42:18,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:42:18,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45900059] [2022-03-17 19:42:18,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45900059] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:42:18,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059053797] [2022-03-17 19:42:18,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:42:18,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:42:18,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:42:18,777 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 19:42:18,779 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 19:42:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:42:18,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-17 19:42:18,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:42:18,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:42:18,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 19:42:19,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:42:19,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059053797] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 19:42:19,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 19:42:19,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 11 [2022-03-17 19:42:19,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795756546] [2022-03-17 19:42:19,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:42:19,042 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 19:42:19,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:42:19,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 19:42:19,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-03-17 19:42:19,043 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:42:19,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:42:19,075 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-03-17 19:42:19,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:42:19,075 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-03-17 19:42:19,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:42:19,075 INFO L225 Difference]: With dead ends: 16 [2022-03-17 19:42:19,075 INFO L226 Difference]: Without dead ends: 0 [2022-03-17 19:42:19,076 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-03-17 19:42:19,076 INFO L912 BasicCegarLoop]: 7 mSDtfsCounter, 6 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:42:19,077 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 25 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-17 19:42:19,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-17 19:42:19,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-17 19:42:19,077 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 19:42:19,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-17 19:42:19,078 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2022-03-17 19:42:19,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:42:19,078 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-17 19:42:19,078 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:42:19,078 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-17 19:42:19,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-17 19:42:19,081 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-17 19:42:19,114 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-17 19:42:19,283 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 19:42:19,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-03-17 19:42:19,308 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= |old(~__return_65~0)| ~__return_65~0) (= ~__tmp_55_0~0 |old(~__tmp_55_0~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-03-17 19:42:19,308 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-03-17 19:42:19,308 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-03-17 19:42:19,308 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-03-17 19:42:19,308 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-03-17 19:42:19,308 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-03-17 19:42:19,309 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-03-17 19:42:19,309 INFO L878 garLoopResultBuilder]: At program point mainENTRY(lines 14 74) the Hoare annotation is: (and (= |old(~__return_65~0)| ~__return_65~0) (= ~__tmp_55_0~0 |old(~__tmp_55_0~0)|)) [2022-03-17 19:42:19,309 INFO L882 garLoopResultBuilder]: For program point L20(lines 20 73) no Hoare annotation was computed. [2022-03-17 19:42:19,309 INFO L882 garLoopResultBuilder]: For program point mainFINAL(lines 14 74) no Hoare annotation was computed. [2022-03-17 19:42:19,309 INFO L882 garLoopResultBuilder]: For program point L26(lines 26 72) no Hoare annotation was computed. [2022-03-17 19:42:19,309 INFO L882 garLoopResultBuilder]: For program point mainEXIT(lines 14 74) no Hoare annotation was computed. [2022-03-17 19:42:19,309 INFO L882 garLoopResultBuilder]: For program point L32(lines 32 71) no Hoare annotation was computed. [2022-03-17 19:42:19,309 INFO L878 garLoopResultBuilder]: At program point L46(lines 33 67) the Hoare annotation is: (or (< main_~main__x~0 0) (< 0 main_~main__y~0)) [2022-03-17 19:42:19,309 INFO L882 garLoopResultBuilder]: For program point L40(lines 40 66) no Hoare annotation was computed. [2022-03-17 19:42:19,309 INFO L882 garLoopResultBuilder]: For program point L55(lines 55 64) no Hoare annotation was computed. [2022-03-17 19:42:19,309 INFO L882 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2022-03-17 19:42:19,310 INFO L882 garLoopResultBuilder]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 57) no Hoare annotation was computed. [2022-03-17 19:42:19,312 INFO L718 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-17 19:42:19,312 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-17 19:42:19,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 07:42:19 BasicIcfg [2022-03-17 19:42:19,320 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-17 19:42:19,321 INFO L158 Benchmark]: Toolchain (without parser) took 1476.41ms. Allocated memory is still 184.5MB. Free memory was 133.8MB in the beginning and 85.9MB in the end (delta: 47.9MB). Peak memory consumption was 47.8MB. Max. memory is 8.0GB. [2022-03-17 19:42:19,321 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 184.5MB. Free memory was 150.0MB in the beginning and 149.9MB in the end (delta: 75.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-17 19:42:19,322 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.34ms. Allocated memory is still 184.5MB. Free memory was 133.6MB in the beginning and 160.4MB in the end (delta: -26.7MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. [2022-03-17 19:42:19,322 INFO L158 Benchmark]: Boogie Preprocessor took 24.50ms. Allocated memory is still 184.5MB. Free memory was 160.4MB in the beginning and 158.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-17 19:42:19,323 INFO L158 Benchmark]: RCFGBuilder took 176.18ms. Allocated memory is still 184.5MB. Free memory was 158.8MB in the beginning and 148.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-17 19:42:19,323 INFO L158 Benchmark]: IcfgTransformer took 12.18ms. Allocated memory is still 184.5MB. Free memory was 148.3MB in the beginning and 147.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-17 19:42:19,323 INFO L158 Benchmark]: TraceAbstraction took 1062.52ms. Allocated memory is still 184.5MB. Free memory was 146.7MB in the beginning and 85.9MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 8.0GB. [2022-03-17 19:42:19,325 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 184.5MB. Free memory was 150.0MB in the beginning and 149.9MB in the end (delta: 75.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 196.34ms. Allocated memory is still 184.5MB. Free memory was 133.6MB in the beginning and 160.4MB in the end (delta: -26.7MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.50ms. Allocated memory is still 184.5MB. Free memory was 160.4MB in the beginning and 158.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 176.18ms. Allocated memory is still 184.5MB. Free memory was 158.8MB in the beginning and 148.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 12.18ms. Allocated memory is still 184.5MB. Free memory was 148.3MB in the beginning and 147.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 1062.52ms. Allocated memory is still 184.5MB. Free memory was 146.7MB in the beginning and 85.9MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. 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: 57]: 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 3 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 57 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 25 mSDtfsCounter, 57 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 32 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 216 SizeOfPredicates, 4 NumberOfNonLiveVariables, 101 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: main__x < 0 || 0 < main__y RESULT: Ultimate proved your program to be correct! [2022-03-17 19:42:19,351 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...