/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/loops/while_infinite_loop_2.c


--------------------------------------------------------------------------------


This is Ultimate 0.2.2-dev-e106359-m
[2022-04-15 12:13:41,207 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-04-15 12:13:41,209 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-04-15 12:13:41,244 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-04-15 12:13:41,244 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-04-15 12:13:41,245 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-04-15 12:13:41,249 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-04-15 12:13:41,256 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-04-15 12:13:41,257 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-04-15 12:13:41,257 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2022-04-15 12:13:41,259 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-04-15 12:13:41,259 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-04-15 12:13:41,259 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-04-15 12:13:41,260 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-04-15 12:13:41,261 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-04-15 12:13:41,262 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-04-15 12:13:41,262 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-04-15 12:13:41,263 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-04-15 12:13:41,265 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-04-15 12:13:41,266 INFO  L181        SettingsManager]: Resetting HornVerifier preferences to default values
[2022-04-15 12:13:41,280 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-04-15 12:13:41,281 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-04-15 12:13:41,282 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-04-15 12:13:41,283 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-04-15 12:13:41,285 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-04-15 12:13:41,285 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-04-15 12:13:41,285 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-04-15 12:13:41,286 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-04-15 12:13:41,286 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-04-15 12:13:41,287 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-04-15 12:13:41,287 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-04-15 12:13:41,288 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-04-15 12:13:41,289 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-04-15 12:13:41,289 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-04-15 12:13:41,290 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-04-15 12:13:41,290 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2022-04-15 12:13:41,291 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2022-04-15 12:13:41,293 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-04-15 12:13:41,294 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf
[2022-04-15 12:13:41,301 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-04-15 12:13:41,302 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-04-15 12:13:41,303 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-04-15 12:13:41,303 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-04-15 12:13:41,303 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-04-15 12:13:41,304 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-04-15 12:13:41,304 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-04-15 12:13:41,304 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-04-15 12:13:41,304 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-04-15 12:13:41,304 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-04-15 12:13:41,304 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-04-15 12:13:41,305 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-04-15 12:13:41,305 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-04-15 12:13:41,305 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-04-15 12:13:41,305 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-04-15 12:13:41,306 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-15 12:13:41,306 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-04-15 12:13:41,306 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=Craig_NestedInterpolation
[2022-04-15 12:13:41,306 INFO  L138        SettingsManager]:  * Trace refinement strategy=ACCELERATED_INTERPOLATION
[2022-04-15 12:13:41,306 INFO  L138        SettingsManager]:  * Trace refinement strategy used in Accelerated Interpolation=CAMEL
[2022-04-15 12:13:41,307 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-04-15 12:13:41,307 INFO  L138        SettingsManager]:  * Loop acceleration method that is used by accelerated interpolation=QVASR
[2022-04-15 12:13:41,307 INFO  L138        SettingsManager]:  * Use separate solver for trace checks=false
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-04-15 12:13:41,567 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-04-15 12:13:41,599 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-04-15 12:13:41,601 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-04-15 12:13:41,602 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-04-15 12:13:41,602 INFO  L275        PluginConnector]: CDTParser initialized
[2022-04-15 12:13:41,604 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/while_infinite_loop_2.c
[2022-04-15 12:13:41,649 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908fb3bf9/9b113497ba184326bb888a6699835a0e/FLAG3ea60f993
[2022-04-15 12:13:42,000 INFO  L306              CDTParser]: Found 1 translation units.
[2022-04-15 12:13:42,001 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_2.c
[2022-04-15 12:13:42,006 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908fb3bf9/9b113497ba184326bb888a6699835a0e/FLAG3ea60f993
[2022-04-15 12:13:42,409 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908fb3bf9/9b113497ba184326bb888a6699835a0e
[2022-04-15 12:13:42,411 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-04-15 12:13:42,412 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2022-04-15 12:13:42,413 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-04-15 12:13:42,413 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-04-15 12:13:42,419 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-04-15 12:13:42,421 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:13:42" (1/1) ...
[2022-04-15 12:13:42,421 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a7e3e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:13:42, skipping insertion in model container
[2022-04-15 12:13:42,422 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:13:42" (1/1) ...
[2022-04-15 12:13:42,428 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-04-15 12:13:42,439 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-04-15 12:13:42,624 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/while_infinite_loop_2.c[333,346]
[2022-04-15 12:13:42,646 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-15 12:13:42,652 INFO  L203         MainTranslator]: Completed pre-run
[2022-04-15 12:13:42,670 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/while_infinite_loop_2.c[333,346]
[2022-04-15 12:13:42,676 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-15 12:13:42,692 INFO  L208         MainTranslator]: Completed translation
[2022-04-15 12:13:42,692 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:13:42 WrapperNode
[2022-04-15 12:13:42,693 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-04-15 12:13:42,694 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-04-15 12:13:42,694 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-04-15 12:13:42,694 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-04-15 12:13:42,704 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:13:42" (1/1) ...
[2022-04-15 12:13:42,705 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:13:42" (1/1) ...
[2022-04-15 12:13:42,711 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:13:42" (1/1) ...
[2022-04-15 12:13:42,712 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:13:42" (1/1) ...
[2022-04-15 12:13:42,720 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:13:42" (1/1) ...
[2022-04-15 12:13:42,724 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:13:42" (1/1) ...
[2022-04-15 12:13:42,730 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:13:42" (1/1) ...
[2022-04-15 12:13:42,733 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-04-15 12:13:42,734 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-04-15 12:13:42,734 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-04-15 12:13:42,735 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-04-15 12:13:42,735 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:13:42" (1/1) ...
[2022-04-15 12:13:42,742 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-15 12:13:42,751 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-15 12:13:42,780 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 12:13:42,813 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 12:13:42,857 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-04-15 12:13:42,857 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-04-15 12:13:42,857 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2022-04-15 12:13:42,858 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-04-15 12:13:42,858 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2022-04-15 12:13:42,858 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2022-04-15 12:13:42,858 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-04-15 12:13:42,858 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2022-04-15 12:13:42,859 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-04-15 12:13:42,859 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-04-15 12:13:42,859 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2022-04-15 12:13:42,859 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-04-15 12:13:42,859 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-04-15 12:13:42,860 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-04-15 12:13:42,860 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-04-15 12:13:42,861 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-04-15 12:13:42,861 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-04-15 12:13:42,921 INFO  L234             CfgBuilder]: Building ICFG
[2022-04-15 12:13:42,922 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-04-15 12:13:43,020 INFO  L275             CfgBuilder]: Performing block encoding
[2022-04-15 12:13:43,029 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-04-15 12:13:43,030 INFO  L299             CfgBuilder]: Removed 1 assume(true) statements.
[2022-04-15 12:13:43,031 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:13:43 BoogieIcfgContainer
[2022-04-15 12:13:43,031 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-04-15 12:13:43,032 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-04-15 12:13:43,032 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-04-15 12:13:43,060 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-04-15 12:13:43,060 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 12:13:42" (1/3) ...
[2022-04-15 12:13:43,061 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19920adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:13:43, skipping insertion in model container
[2022-04-15 12:13:43,061 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:13:42" (2/3) ...
[2022-04-15 12:13:43,061 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19920adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:13:43, skipping insertion in model container
[2022-04-15 12:13:43,061 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:13:43" (3/3) ...
[2022-04-15 12:13:43,062 INFO  L111   eAbstractionObserver]: Analyzing ICFG while_infinite_loop_2.c
[2022-04-15 12:13:43,066 INFO  L202   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2022-04-15 12:13:43,066 INFO  L161   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-04-15 12:13:43,112 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-15 12:13:43,117 INFO  L340      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP
[2022-04-15 12:13:43,117 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-04-15 12:13:43,129 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 19 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2022-04-15 12:13:43,136 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-04-15 12:13:43,137 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-15 12:13:43,137 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-15 12:13:43,138 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-15 12:13:43,142 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-15 12:13:43,142 INFO  L85        PathProgramCache]: Analyzing trace with hash 612371967, now seen corresponding path program 1 times
[2022-04-15 12:13:43,150 INFO  L118   FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION
[2022-04-15 12:13:43,151 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [303513904]
[2022-04-15 12:13:43,171 INFO  L202   tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-04-15 12:13:43,171 INFO  L85        PathProgramCache]: Analyzing trace with hash 612371967, now seen corresponding path program 2 times
[2022-04-15 12:13:43,174 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-15 12:13:43,175 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431148017]
[2022-04-15 12:13:43,175 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-15 12:13:43,176 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-15 12:13:43,286 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-15 12:13:43,418 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-04-15 12:13:43,421 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-15 12:13:43,436 INFO  L290        TraceCheckUtils]: 0: Hoare triple {30#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); {22#true} is VALID
[2022-04-15 12:13:43,436 INFO  L290        TraceCheckUtils]: 1: Hoare triple {22#true} assume true; {22#true} is VALID
[2022-04-15 12:13:43,437 INFO  L284        TraceCheckUtils]: 2: Hoare quadruple {22#true} {22#true} #35#return; {22#true} is VALID
[2022-04-15 12:13:43,439 INFO  L272        TraceCheckUtils]: 0: Hoare triple {22#true} call ULTIMATE.init(); {30#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID
[2022-04-15 12:13:43,439 INFO  L290        TraceCheckUtils]: 1: Hoare triple {30#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); {22#true} is VALID
[2022-04-15 12:13:43,439 INFO  L290        TraceCheckUtils]: 2: Hoare triple {22#true} assume true; {22#true} is VALID
[2022-04-15 12:13:43,440 INFO  L284        TraceCheckUtils]: 3: Hoare quadruple {22#true} {22#true} #35#return; {22#true} is VALID
[2022-04-15 12:13:43,440 INFO  L272        TraceCheckUtils]: 4: Hoare triple {22#true} call #t~ret4 := main(); {22#true} is VALID
[2022-04-15 12:13:43,441 INFO  L290        TraceCheckUtils]: 5: Hoare triple {22#true} ~x~0 := 0; {27#(= main_~x~0 0)} is VALID
[2022-04-15 12:13:43,441 INFO  L290        TraceCheckUtils]: 6: Hoare triple {27#(= main_~x~0 0)} assume !false; {27#(= main_~x~0 0)} is VALID
[2022-04-15 12:13:43,443 INFO  L272        TraceCheckUtils]: 7: Hoare triple {27#(= main_~x~0 0)} call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); {28#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID
[2022-04-15 12:13:43,444 INFO  L290        TraceCheckUtils]: 8: Hoare triple {28#(not (= |__VERIFIER_assert_#in~cond| 0))} ~cond := #in~cond; {29#(not (= __VERIFIER_assert_~cond 0))} is VALID
[2022-04-15 12:13:43,444 INFO  L290        TraceCheckUtils]: 9: Hoare triple {29#(not (= __VERIFIER_assert_~cond 0))} assume 0 == ~cond; {23#false} is VALID
[2022-04-15 12:13:43,445 INFO  L290        TraceCheckUtils]: 10: Hoare triple {23#false} assume !false; {23#false} is VALID
[2022-04-15 12:13:43,445 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 12:13:43,446 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-15 12:13:43,446 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431148017]
[2022-04-15 12:13:43,448 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431148017] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-15 12:13:43,448 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-15 12:13:43,448 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-04-15 12:13:43,450 INFO  L136   FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace
[2022-04-15 12:13:43,452 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [303513904]
[2022-04-15 12:13:43,452 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [303513904] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-15 12:13:43,452 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-15 12:13:43,452 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-04-15 12:13:43,452 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333221210]
[2022-04-15 12:13:43,453 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-15 12:13:43,457 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11
[2022-04-15 12:13:43,459 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2022-04-15 12:13:43,461 INFO  L86        InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with  has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-15 12:13:43,482 INFO  L122       InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2022-04-15 12:13:43,482 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-04-15 12:13:43,482 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION
[2022-04-15 12:13:43,506 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-04-15 12:13:43,507 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-04-15 12:13:43,509 INFO  L87              Difference]: Start difference. First operand  has 19 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand  has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-15 12:13:43,673 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-15 12:13:43,674 INFO  L93              Difference]: Finished difference Result 25 states and 32 transitions.
[2022-04-15 12:13:43,674 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-04-15 12:13:43,674 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11
[2022-04-15 12:13:43,674 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-15 12:13:43,676 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-15 12:13:43,680 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 32 transitions.
[2022-04-15 12:13:43,681 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-15 12:13:43,684 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 32 transitions.
[2022-04-15 12:13:43,685 INFO  L86        InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 32 transitions.
[2022-04-15 12:13:43,727 INFO  L122       InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2022-04-15 12:13:43,732 INFO  L225             Difference]: With dead ends: 25
[2022-04-15 12:13:43,733 INFO  L226             Difference]: Without dead ends: 0
[2022-04-15 12:13:43,736 INFO  L912         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
[2022-04-15 12:13:43,739 INFO  L913         BasicCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-15 12:13:43,741 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 26 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-15 12:13:43,755 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-04-15 12:13:43,759 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-04-15 12:13:43,759 INFO  L214    AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa
[2022-04-15 12:13:43,761 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 12:13:43,762 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 12:13:43,762 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 12:13:43,762 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-15 12:13:43,763 INFO  L93              Difference]: Finished difference Result 0 states and 0 transitions.
[2022-04-15 12:13:43,763 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-04-15 12:13:43,763 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-15 12:13:43,764 INFO  L83              IsIncluded]: Finished isIncluded. Language is included
[2022-04-15 12:13:43,764 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 12:13:43,764 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 12:13:43,764 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-15 12:13:43,764 INFO  L93              Difference]: Finished difference Result 0 states and 0 transitions.
[2022-04-15 12:13:43,764 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-04-15 12:13:43,765 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-15 12:13:43,765 INFO  L83              IsIncluded]: Finished isIncluded. Language is included
[2022-04-15 12:13:43,765 INFO  L88        GeneralOperation]: Finished isEquivalent.
[2022-04-15 12:13:43,765 INFO  L221    AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa
[2022-04-15 12:13:43,765 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 12:13:43,766 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-04-15 12:13:43,767 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11
[2022-04-15 12:13:43,767 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-15 12:13:43,767 INFO  L478      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-04-15 12:13:43,767 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-15 12:13:43,767 INFO  L86        InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 0 states and 0 transitions.
[2022-04-15 12:13:43,768 INFO  L122       InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2022-04-15 12:13:43,768 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-04-15 12:13:43,768 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-15 12:13:43,770 INFO  L788   garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-04-15 12:13:43,772 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-04-15 12:13:43,776 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2022-04-15 12:13:43,879 INFO  L882   garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed.
[2022-04-15 12:13:43,880 INFO  L882   garLoopResultBuilder]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed.
[2022-04-15 12:13:43,880 INFO  L882   garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed.
[2022-04-15 12:13:43,880 INFO  L885   garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2022-04-15 12:13:43,880 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 12:13:43,880 INFO  L885   garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true
[2022-04-15 12:13:43,880 INFO  L878   garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: false
[2022-04-15 12:13:43,881 INFO  L885   garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true
[2022-04-15 12:13:43,881 INFO  L885   garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2022-04-15 12:13:43,881 INFO  L878   garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: false
[2022-04-15 12:13:43,881 INFO  L885   garLoopResultBuilder]: At program point mainENTRY(lines 11 20) the Hoare annotation is: true
[2022-04-15 12:13:43,881 INFO  L878   garLoopResultBuilder]: At program point mainEXIT(lines 11 20) the Hoare annotation is: false
[2022-04-15 12:13:43,881 INFO  L878   garLoopResultBuilder]: At program point L16(line 16) the Hoare annotation is: (= main_~x~0 0)
[2022-04-15 12:13:43,881 INFO  L878   garLoopResultBuilder]: At program point L16-1(lines 14 17) the Hoare annotation is: (= main_~x~0 0)
[2022-04-15 12:13:43,881 INFO  L878   garLoopResultBuilder]: At program point mainFINAL(lines 11 20) the Hoare annotation is: false
[2022-04-15 12:13:43,882 INFO  L878   garLoopResultBuilder]: At program point L14-2(lines 14 17) the Hoare annotation is: false
[2022-04-15 12:13:43,882 INFO  L885   garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true
[2022-04-15 12:13:43,882 INFO  L878   garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 5 10) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0)))
[2022-04-15 12:13:43,882 INFO  L878   garLoopResultBuilder]: At program point L7(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0)
[2022-04-15 12:13:43,882 INFO  L878   garLoopResultBuilder]: At program point L6(lines 6 8) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0)))
[2022-04-15 12:13:43,882 INFO  L878   garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0)))
[2022-04-15 12:13:43,882 INFO  L878   garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0)
[2022-04-15 12:13:43,888 INFO  L719         BasicCegarLoop]: Path program histogram: [2]
[2022-04-15 12:13:43,889 INFO  L177   ceAbstractionStarter]: Computing trace abstraction results
[2022-04-15 12:13:43,892 WARN  L170   areAnnotationChecker]: reach_errorENTRY has no Hoare annotation
[2022-04-15 12:13:43,898 WARN  L170   areAnnotationChecker]: reach_errorFINAL has no Hoare annotation
[2022-04-15 12:13:43,902 INFO  L163   areAnnotationChecker]: CFG has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing.
[2022-04-15 12:13:43,911 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 12:13:43 BoogieIcfgContainer
[2022-04-15 12:13:43,912 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-04-15 12:13:43,917 INFO  L158              Benchmark]: Toolchain (without parser) took 1500.38ms. Allocated memory was 170.9MB in the beginning and 219.2MB in the end (delta: 48.2MB). Free memory was 120.7MB in the beginning and 143.8MB in the end (delta: -23.0MB). Peak memory consumption was 25.1MB. Max. memory is 8.0GB.
[2022-04-15 12:13:43,917 INFO  L158              Benchmark]: CDTParser took 0.13ms. Allocated memory is still 170.9MB. Free memory was 136.9MB in the beginning and 136.7MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB.
[2022-04-15 12:13:43,918 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 279.53ms. Allocated memory was 170.9MB in the beginning and 219.2MB in the end (delta: 48.2MB). Free memory was 120.5MB in the beginning and 197.1MB in the end (delta: -76.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
[2022-04-15 12:13:43,918 INFO  L158              Benchmark]: Boogie Preprocessor took 39.97ms. Allocated memory is still 219.2MB. Free memory was 197.1MB in the beginning and 195.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-04-15 12:13:43,918 INFO  L158              Benchmark]: RCFGBuilder took 296.80ms. Allocated memory is still 219.2MB. Free memory was 195.6MB in the beginning and 186.2MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB.
[2022-04-15 12:13:43,919 INFO  L158              Benchmark]: TraceAbstraction took 879.40ms. Allocated memory is still 219.2MB. Free memory was 185.7MB in the beginning and 143.8MB in the end (delta: 42.0MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB.
[2022-04-15 12:13:43,921 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 0.13ms. Allocated memory is still 170.9MB. Free memory was 136.9MB in the beginning and 136.7MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 279.53ms. Allocated memory was 170.9MB in the beginning and 219.2MB in the end (delta: 48.2MB). Free memory was 120.5MB in the beginning and 197.1MB in the end (delta: -76.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 39.97ms. Allocated memory is still 219.2MB. Free memory was 197.1MB in the beginning and 195.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
 * RCFGBuilder took 296.80ms. Allocated memory is still 219.2MB. Free memory was 195.6MB in the beginning and 186.2MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB.
 * TraceAbstraction took 879.40ms. Allocated memory is still 219.2MB. Free memory was 185.7MB in the beginning and 143.8MB in the end (delta: 42.0MB). Peak memory consumption was 41.9MB. 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: 7]: 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 5 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 9 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 19 LocationsWithAnnotation, 31 PreInvPairs, 35 NumberOfFragments, 54 HoareAnnotationTreeSize, 31 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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: 14]: Loop Invariant
    Derived loop invariant: x == 0
  - ProcedureContractResult [Line: 11]: Procedure Contract for main
    Derived contract for procedure main: 0
  - ProcedureContractResult [Line: 5]: Procedure Contract for __VERIFIER_assert
    Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0)
RESULT: Ultimate proved your program to be correct!
[2022-04-15 12:13:43,957 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...