/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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/fermat1-ll_valuebound50.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-dev-7968f31
[2022-03-18 02:56:54,764 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-03-18 02:56:54,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-03-18 02:56:54,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-03-18 02:56:54,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-03-18 02:56:54,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-03-18 02:56:54,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-03-18 02:56:54,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-03-18 02:56:54,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-03-18 02:56:54,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-03-18 02:56:54,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-03-18 02:56:54,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-03-18 02:56:54,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-03-18 02:56:54,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-03-18 02:56:54,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-03-18 02:56:54,805 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-03-18 02:56:54,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-03-18 02:56:54,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-03-18 02:56:54,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-03-18 02:56:54,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-03-18 02:56:54,820 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values
[2022-03-18 02:56:54,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-03-18 02:56:54,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-03-18 02:56:54,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-03-18 02:56:54,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-03-18 02:56:54,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-03-18 02:56:54,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-03-18 02:56:54,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-03-18 02:56:54,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-03-18 02:56:54,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-03-18 02:56:54,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-03-18 02:56:54,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-03-18 02:56:54,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-03-18 02:56:54,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-03-18 02:56:54,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-03-18 02:56:54,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-03-18 02:56:54,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-03-18 02:56:54,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-03-18 02:56:54,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-03-18 02:56:54,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-03-18 02:56:54,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-03-18 02:56:54,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-03-18 02:56:54,835 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf
[2022-03-18 02:56:54,845 INFO L113 SettingsManager]: Loading preferences was successful
[2022-03-18 02:56:54,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-03-18 02:56:54,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-03-18 02:56:54,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-03-18 02:56:54,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-03-18 02:56:54,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-03-18 02:56:54,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-03-18 02:56:54,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-03-18 02:56:54,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-03-18 02:56:54,849 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-03-18 02:56:54,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-03-18 02:56:54,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-03-18 02:56:54,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-03-18 02:56:54,849 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-03-18 02:56:54,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-03-18 02:56:54,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-03-18 02:56:54,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-03-18 02:56:54,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation
[2022-03-18 02:56:54,850 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION
[2022-03-18 02:56:54,850 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL
[2022-03-18 02:56:54,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-03-18 02:56:54,850 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR
[2022-03-18 02:56:54,850 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-03-18 02:56:55,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-03-18 02:56:55,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-03-18 02:56:55,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-03-18 02:56:55,057 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-03-18 02:56:55,057 INFO L275 PluginConnector]: CDTParser initialized
[2022-03-18 02:56:55,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/fermat1-ll_valuebound50.c
[2022-03-18 02:56:55,102 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85c7202ac/f6c9761ed6624812b9abf77a39b3640f/FLAG5d66df197
[2022-03-18 02:56:55,502 INFO L306 CDTParser]: Found 1 translation units.
[2022-03-18 02:56:55,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat1-ll_valuebound50.c
[2022-03-18 02:56:55,508 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85c7202ac/f6c9761ed6624812b9abf77a39b3640f/FLAG5d66df197
[2022-03-18 02:56:55,522 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85c7202ac/f6c9761ed6624812b9abf77a39b3640f
[2022-03-18 02:56:55,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-03-18 02:56:55,526 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2022-03-18 02:56:55,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-03-18 02:56:55,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-03-18 02:56:55,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-03-18 02:56:55,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 02:56:55" (1/1) ...
[2022-03-18 02:56:55,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2161938f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:56:55, skipping insertion in model container
[2022-03-18 02:56:55,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 02:56:55" (1/1) ...
[2022-03-18 02:56:55,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-03-18 02:56:55,546 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-03-18 02:56:55,716 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat1-ll_valuebound50.c[535,548]
[2022-03-18 02:56:55,744 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-03-18 02:56:55,750 INFO L203 MainTranslator]: Completed pre-run
[2022-03-18 02:56:55,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat1-ll_valuebound50.c[535,548]
[2022-03-18 02:56:55,780 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-03-18 02:56:55,788 INFO L208 MainTranslator]: Completed translation
[2022-03-18 02:56:55,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:56:55 WrapperNode
[2022-03-18 02:56:55,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-03-18 02:56:55,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-03-18 02:56:55,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-03-18 02:56:55,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-03-18 02:56:55,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:56:55" (1/1) ...
[2022-03-18 02:56:55,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:56:55" (1/1) ...
[2022-03-18 02:56:55,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:56:55" (1/1) ...
[2022-03-18 02:56:55,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:56:55" (1/1) ...
[2022-03-18 02:56:55,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:56:55" (1/1) ...
[2022-03-18 02:56:55,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:56:55" (1/1) ...
[2022-03-18 02:56:55,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:56:55" (1/1) ...
[2022-03-18 02:56:55,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-03-18 02:56:55,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-03-18 02:56:55,833 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-03-18 02:56:55,833 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-03-18 02:56:55,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:56:55" (1/1) ...
[2022-03-18 02:56:55,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-03-18 02:56:55,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-18 02:56:55,868 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)
[2022-03-18 02:56:55,883 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
[2022-03-18 02:56:55,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-03-18 02:56:55,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-03-18 02:56:55,909 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2022-03-18 02:56:55,909 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2022-03-18 02:56:55,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-03-18 02:56:55,910 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2022-03-18 02:56:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2022-03-18 02:56:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-03-18 02:56:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2022-03-18 02:56:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-03-18 02:56:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2022-03-18 02:56:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2022-03-18 02:56:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-03-18 02:56:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2022-03-18 02:56:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-03-18 02:56:55,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-03-18 02:56:55,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-03-18 02:56:55,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-03-18 02:56:55,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-03-18 02:56:55,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-03-18 02:56:55,957 INFO L234 CfgBuilder]: Building ICFG
[2022-03-18 02:56:55,958 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-03-18 02:56:56,123 INFO L275 CfgBuilder]: Performing block encoding
[2022-03-18 02:56:56,127 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-03-18 02:56:56,127 INFO L299 CfgBuilder]: Removed 3 assume(true) statements.
[2022-03-18 02:56:56,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 02:56:56 BoogieIcfgContainer
[2022-03-18 02:56:56,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-03-18 02:56:56,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-03-18 02:56:56,130 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-03-18 02:56:56,145 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-03-18 02:56:56,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 02:56:55" (1/3) ...
[2022-03-18 02:56:56,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8c5eef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 02:56:56, skipping insertion in model container
[2022-03-18 02:56:56,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 02:56:55" (2/3) ...
[2022-03-18 02:56:56,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8c5eef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 02:56:56, skipping insertion in model container
[2022-03-18 02:56:56,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 02:56:56" (3/3) ...
[2022-03-18 02:56:56,147 INFO L111 eAbstractionObserver]: Analyzing ICFG fermat1-ll_valuebound50.c
[2022-03-18 02:56:56,150 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2022-03-18 02:56:56,150 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-03-18 02:56:56,186 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-03-18 02:56:56,192 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
[2022-03-18 02:56:56,192 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-03-18 02:56:56,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10)
[2022-03-18 02:56:56,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2022-03-18 02:56:56,210 INFO L492 BasicCegarLoop]: Found error trace
[2022-03-18 02:56:56,210 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-03-18 02:56:56,210 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-03-18 02:56:56,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-03-18 02:56:56,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1718462925, now seen corresponding path program 1 times
[2022-03-18 02:56:56,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION
[2022-03-18 02:56:56,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1673447204]
[2022-03-18 02:56:56,232 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-03-18 02:56:56,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1718462925, now seen corresponding path program 2 times
[2022-03-18 02:56:56,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-18 02:56:56,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069582636]
[2022-03-18 02:56:56,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-18 02:56:56,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-18 02:56:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-18 02:56:56,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-03-18 02:56:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-18 02:56:56,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2022-03-18 02:56:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-18 02:56:56,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2022-03-18 02:56:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-18 02:56:56,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17
[2022-03-18 02:56:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-18 02:56:56,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22
[2022-03-18 02:56:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-18 02:56:56,414 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2022-03-18 02:56:56,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-18 02:56:56,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069582636]
[2022-03-18 02:56:56,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069582636] provided 1 perfect and 0 imperfect interpolant sequences
[2022-03-18 02:56:56,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-03-18 02:56:56,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-03-18 02:56:56,417 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace
[2022-03-18 02:56:56,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1673447204]
[2022-03-18 02:56:56,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1673447204] provided 1 perfect and 0 imperfect interpolant sequences
[2022-03-18 02:56:56,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-03-18 02:56:56,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-03-18 02:56:56,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993284962]
[2022-03-18 02:56:56,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-03-18 02:56:56,420 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-03-18 02:56:56,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION
[2022-03-18 02:56:56,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-03-18 02:56:56,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-03-18 02:56:56,440 INFO L87 Difference]: Start difference. First operand has 37 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2022-03-18 02:56:56,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-03-18 02:56:56,519 INFO L93 Difference]: Finished difference Result 67 states and 106 transitions.
[2022-03-18 02:56:56,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-03-18 02:56:56,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33
[2022-03-18 02:56:56,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-03-18 02:56:56,527 INFO L225 Difference]: With dead ends: 67
[2022-03-18 02:56:56,527 INFO L226 Difference]: Without dead ends: 32
[2022-03-18 02:56:56,530 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-03-18 02:56:56,534 INFO L912 BasicCegarLoop]: 37 mSDtfsCounter, 22 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-03-18 02:56:56,535 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 40 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-03-18 02:56:56,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2022-03-18 02:56:56,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32.
[2022-03-18 02:56:56,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)
[2022-03-18 02:56:56,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions.
[2022-03-18 02:56:56,561 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 33
[2022-03-18 02:56:56,561 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-03-18 02:56:56,561 INFO L478 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions.
[2022-03-18 02:56:56,562 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2022-03-18 02:56:56,562 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions.
[2022-03-18 02:56:56,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2022-03-18 02:56:56,564 INFO L492 BasicCegarLoop]: Found error trace
[2022-03-18 02:56:56,564 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-03-18 02:56:56,565 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-03-18 02:56:56,566 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-03-18 02:56:56,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-03-18 02:56:56,568 INFO L85 PathProgramCache]: Analyzing trace with hash 657160210, now seen corresponding path program 1 times
[2022-03-18 02:56:56,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION
[2022-03-18 02:56:56,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [594979333]
[2022-03-18 02:56:56,569 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-03-18 02:56:56,569 INFO L85 PathProgramCache]: Analyzing trace with hash 657160210, now seen corresponding path program 2 times
[2022-03-18 02:56:56,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-18 02:56:56,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216355827]
[2022-03-18 02:56:56,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-18 02:56:56,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-18 02:56:56,598 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-03-18 02:56:56,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [562565595]
[2022-03-18 02:56:56,601 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-03-18 02:56:56,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-18 02:56:56,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-18 02:56:56,612 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)
[2022-03-18 02:56:56,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-03-18 02:56:56,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2022-03-18 02:56:56,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-18 02:56:56,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjunts are in the unsatisfiable core
[2022-03-18 02:56:56,676 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-03-18 02:56:57,051 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2022-03-18 02:56:57,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-03-18 02:56:57,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-18 02:56:57,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216355827]
[2022-03-18 02:56:57,052 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-03-18 02:56:57,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562565595]
[2022-03-18 02:56:57,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562565595] provided 1 perfect and 0 imperfect interpolant sequences
[2022-03-18 02:56:57,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-03-18 02:56:57,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-03-18 02:56:57,053 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace
[2022-03-18 02:56:57,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [594979333]
[2022-03-18 02:56:57,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [594979333] provided 1 perfect and 0 imperfect interpolant sequences
[2022-03-18 02:56:57,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-03-18 02:56:57,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-03-18 02:56:57,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932138421]
[2022-03-18 02:56:57,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-03-18 02:56:57,063 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-03-18 02:56:57,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION
[2022-03-18 02:56:57,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-03-18 02:56:57,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-03-18 02:56:57,064 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5)
[2022-03-18 02:56:59,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-03-18 02:57:01,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-03-18 02:57:01,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-03-18 02:57:01,756 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions.
[2022-03-18 02:57:01,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-03-18 02:57:01,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 33
[2022-03-18 02:57:01,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-03-18 02:57:01,757 INFO L225 Difference]: With dead ends: 48
[2022-03-18 02:57:01,757 INFO L226 Difference]: Without dead ends: 46
[2022-03-18 02:57:01,758 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2022-03-18 02:57:01,758 INFO L912 BasicCegarLoop]: 33 mSDtfsCounter, 11 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time
[2022-03-18 02:57:01,759 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 125 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time]
[2022-03-18 02:57:01,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2022-03-18 02:57:01,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45.
[2022-03-18 02:57:01,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2022-03-18 02:57:01,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 58 transitions.
[2022-03-18 02:57:01,770 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 58 transitions. Word has length 33
[2022-03-18 02:57:01,770 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-03-18 02:57:01,770 INFO L478 AbstractCegarLoop]: Abstraction has 45 states and 58 transitions.
[2022-03-18 02:57:01,770 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5)
[2022-03-18 02:57:01,770 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 58 transitions.
[2022-03-18 02:57:01,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40
[2022-03-18 02:57:01,771 INFO L492 BasicCegarLoop]: Found error trace
[2022-03-18 02:57:01,771 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-03-18 02:57:01,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2022-03-18 02:57:01,988 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
[2022-03-18 02:57:01,988 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-03-18 02:57:01,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-03-18 02:57:01,989 INFO L85 PathProgramCache]: Analyzing trace with hash 936002262, now seen corresponding path program 1 times
[2022-03-18 02:57:01,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION
[2022-03-18 02:57:01,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1746891443]
[2022-03-18 02:57:01,989 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-03-18 02:57:01,989 INFO L85 PathProgramCache]: Analyzing trace with hash 936002262, now seen corresponding path program 2 times
[2022-03-18 02:57:01,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-18 02:57:01,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490987004]
[2022-03-18 02:57:01,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-18 02:57:01,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-18 02:57:01,999 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-03-18 02:57:02,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [770990055]
[2022-03-18 02:57:02,000 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-03-18 02:57:02,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-18 02:57:02,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-18 02:57:02,016 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-03-18 02:57:02,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-03-18 02:57:02,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-03-18 02:57:02,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-18 02:57:02,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 10 conjunts are in the unsatisfiable core
[2022-03-18 02:57:02,062 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-03-18 02:57:02,160 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2022-03-18 02:57:02,160 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-03-18 02:57:02,294 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2022-03-18 02:57:02,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-18 02:57:02,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490987004]
[2022-03-18 02:57:02,295 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-03-18 02:57:02,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770990055]
[2022-03-18 02:57:02,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770990055] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-18 02:57:02,295 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-03-18 02:57:02,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10
[2022-03-18 02:57:02,295 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace
[2022-03-18 02:57:02,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1746891443]
[2022-03-18 02:57:02,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1746891443] provided 1 perfect and 0 imperfect interpolant sequences
[2022-03-18 02:57:02,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-03-18 02:57:02,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-03-18 02:57:02,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662930728]
[2022-03-18 02:57:02,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-03-18 02:57:02,296 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-03-18 02:57:02,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION
[2022-03-18 02:57:02,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-03-18 02:57:02,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2022-03-18 02:57:02,297 INFO L87 Difference]: Start difference. First operand 45 states and 58 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6)
[2022-03-18 02:57:02,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-03-18 02:57:02,404 INFO L93 Difference]: Finished difference Result 45 states and 58 transitions.
[2022-03-18 02:57:02,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-03-18 02:57:02,404 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 39
[2022-03-18 02:57:02,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-03-18 02:57:02,405 INFO L225 Difference]: With dead ends: 45
[2022-03-18 02:57:02,405 INFO L226 Difference]: Without dead ends: 0
[2022-03-18 02:57:02,406 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132
[2022-03-18 02:57:02,406 INFO L912 BasicCegarLoop]: 27 mSDtfsCounter, 15 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-03-18 02:57:02,407 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 144 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-03-18 02:57:02,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-03-18 02:57:02,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-03-18 02:57:02,407 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)
[2022-03-18 02:57:02,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-03-18 02:57:02,407 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39
[2022-03-18 02:57:02,408 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-03-18 02:57:02,408 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-03-18 02:57:02,408 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6)
[2022-03-18 02:57:02,408 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-03-18 02:57:02,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-03-18 02:57:02,410 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-03-18 02:57:02,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2022-03-18 02:57:02,627 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2022-03-18 02:57:02,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2022-03-18 02:57:02,785 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 5) no Hoare annotation was computed.
[2022-03-18 02:57:02,786 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 5) no Hoare annotation was computed.
[2022-03-18 02:57:02,786 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 5) no Hoare annotation was computed.
[2022-03-18 02:57:02,786 INFO L885 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 8 10) the Hoare annotation is: true
[2022-03-18 02:57:02,786 INFO L885 garLoopResultBuilder]: At program point L9(line 9) the Hoare annotation is: true
[2022-03-18 02:57:02,786 INFO L885 garLoopResultBuilder]: At program point L9-2(lines 8 10) the Hoare annotation is: true
[2022-03-18 02:57:02,786 INFO L885 garLoopResultBuilder]: At program point assume_abort_if_notEXIT(lines 8 10) the Hoare annotation is: true
[2022-03-18 02:57:02,786 INFO L878 garLoopResultBuilder]: At program point L35-2(lines 35 55) the Hoare annotation is: (let ((.cse0 (+ (* main_~v~0 2) (* main_~u~0 main_~u~0))) (.cse1 (* main_~v~0 main_~v~0)) (.cse2 (* main_~u~0 2)) (.cse3 (* main_~A~0 4))) (and (= .cse0 (+ .cse1 .cse2 .cse3 (* main_~r~0 4))) (= .cse0 (+ .cse1 .cse2 .cse3))))
[2022-03-18 02:57:02,786 INFO L885 garLoopResultBuilder]: At program point mainEXIT(lines 19 59) the Hoare annotation is: true
[2022-03-18 02:57:02,787 INFO L885 garLoopResultBuilder]: At program point L23(line 23) the Hoare annotation is: true
[2022-03-18 02:57:02,787 INFO L885 garLoopResultBuilder]: At program point L23-1(line 23) the Hoare annotation is: true
[2022-03-18 02:57:02,787 INFO L878 garLoopResultBuilder]: At program point L48-1(lines 35 55) the Hoare annotation is: (= (+ (* main_~v~0 2) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* main_~u~0 2) (* main_~A~0 4) (* main_~r~0 4)))
[2022-03-18 02:57:02,787 INFO L878 garLoopResultBuilder]: At program point L48-2(lines 35 55) the Hoare annotation is: (= (+ (* main_~v~0 2) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* main_~u~0 2) (* main_~A~0 4) (* main_~r~0 4)))
[2022-03-18 02:57:02,787 INFO L878 garLoopResultBuilder]: At program point L40-2(lines 40 46) the Hoare annotation is: (= (+ (* main_~v~0 2) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* main_~u~0 2) (* main_~A~0 4) (* main_~r~0 4)))
[2022-03-18 02:57:02,787 INFO L878 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (= (+ (* main_~v~0 2) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* main_~u~0 2) (* main_~A~0 4) (* main_~r~0 4)))
[2022-03-18 02:57:02,787 INFO L878 garLoopResultBuilder]: At program point L36-1(lines 35 55) the Hoare annotation is: (= (+ (* main_~v~0 2) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* main_~u~0 2) (* main_~A~0 4) (* main_~r~0 4)))
[2022-03-18 02:57:02,787 INFO L885 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: true
[2022-03-18 02:57:02,788 INFO L885 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: true
[2022-03-18 02:57:02,788 INFO L878 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: (= (+ (* main_~v~0 2) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* main_~u~0 2) (* main_~A~0 4) (* main_~r~0 4)))
[2022-03-18 02:57:02,788 INFO L878 garLoopResultBuilder]: At program point L49-1(lines 48 54) the Hoare annotation is: (= (+ (* main_~v~0 2) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* main_~u~0 2) (* main_~A~0 4) (* main_~r~0 4)))
[2022-03-18 02:57:02,788 INFO L878 garLoopResultBuilder]: At program point L41(line 41) the Hoare annotation is: (= (+ (* main_~v~0 2) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* main_~u~0 2) (* main_~A~0 4) (* main_~r~0 4)))
[2022-03-18 02:57:02,788 INFO L878 garLoopResultBuilder]: At program point L41-1(lines 40 46) the Hoare annotation is: (= (+ (* main_~v~0 2) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* main_~u~0 2) (* main_~A~0 4) (* main_~r~0 4)))
[2022-03-18 02:57:02,788 INFO L885 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: true
[2022-03-18 02:57:02,788 INFO L885 garLoopResultBuilder]: At program point L25-1(line 25) the Hoare annotation is: true
[2022-03-18 02:57:02,788 INFO L885 garLoopResultBuilder]: At program point mainFINAL(lines 19 59) the Hoare annotation is: true
[2022-03-18 02:57:02,788 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 19 59) the Hoare annotation is: true
[2022-03-18 02:57:02,789 INFO L885 garLoopResultBuilder]: At program point L26(line 26) the Hoare annotation is: true
[2022-03-18 02:57:02,789 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2022-03-18 02:57:02,789 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))
[2022-03-18 02:57:02,789 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true
[2022-03-18 02:57:02,789 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true
[2022-03-18 02:57:02,789 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true
[2022-03-18 02:57:02,789 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2022-03-18 02:57:02,789 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true
[2022-03-18 02:57:02,789 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 11 17) the Hoare annotation is: true
[2022-03-18 02:57:02,789 INFO L878 garLoopResultBuilder]: At program point L13(lines 13 14) the Hoare annotation is: (not (<= 1 |__VERIFIER_assert_#in~cond|))
[2022-03-18 02:57:02,789 INFO L878 garLoopResultBuilder]: At program point L12(lines 12 15) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (not (<= 1 |__VERIFIER_assert_#in~cond|)))
[2022-03-18 02:57:02,790 INFO L878 garLoopResultBuilder]: At program point L12-2(lines 11 17) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (not (<= 1 |__VERIFIER_assert_#in~cond|)))
[2022-03-18 02:57:02,790 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 11 17) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (not (<= 1 |__VERIFIER_assert_#in~cond|)))
[2022-03-18 02:57:02,790 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) the Hoare annotation is: (not (<= 1 |__VERIFIER_assert_#in~cond|))
[2022-03-18 02:57:02,792 INFO L718 BasicCegarLoop]: Path program histogram: [2, 2, 2]
[2022-03-18 02:57:02,793 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-03-18 02:57:02,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.03 02:57:02 BoogieIcfgContainer
[2022-03-18 02:57:02,803 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-03-18 02:57:02,803 INFO L158 Benchmark]: Toolchain (without parser) took 7277.41ms. Allocated memory was 184.5MB in the beginning and 263.2MB in the end (delta: 78.6MB). Free memory was 136.4MB in the beginning and 177.3MB in the end (delta: -40.9MB). Peak memory consumption was 37.4MB. Max. memory is 8.0GB.
[2022-03-18 02:57:02,803 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 152.6MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-03-18 02:57:02,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.52ms. Allocated memory is still 184.5MB. Free memory was 136.3MB in the beginning and 161.5MB in the end (delta: -25.2MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB.
[2022-03-18 02:57:02,804 INFO L158 Benchmark]: Boogie Preprocessor took 42.62ms. Allocated memory is still 184.5MB. Free memory was 161.5MB in the beginning and 159.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-03-18 02:57:02,804 INFO L158 Benchmark]: RCFGBuilder took 295.50ms. Allocated memory is still 184.5MB. Free memory was 159.9MB in the beginning and 148.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
[2022-03-18 02:57:02,804 INFO L158 Benchmark]: TraceAbstraction took 6673.15ms. Allocated memory was 184.5MB in the beginning and 263.2MB in the end (delta: 78.6MB). Free memory was 148.3MB in the beginning and 177.3MB in the end (delta: -29.0MB). Peak memory consumption was 50.6MB. Max. memory is 8.0GB.
[2022-03-18 02:57:02,805 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 152.6MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 261.52ms. Allocated memory is still 184.5MB. Free memory was 136.3MB in the beginning and 161.5MB in the end (delta: -25.2MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 42.62ms. Allocated memory is still 184.5MB. Free memory was 161.5MB in the beginning and 159.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 295.50ms. Allocated memory is still 184.5MB. Free memory was 159.9MB in the beginning and 148.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
* TraceAbstraction took 6673.15ms. Allocated memory was 184.5MB in the beginning and 263.2MB in the end (delta: 78.6MB). Free memory was 148.3MB in the beginning and 177.3MB in the end (delta: -29.0MB). Peak memory consumption was 50.6MB. 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: 14]: 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 6 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 309 SdHoareTripleChecker+Invalid, 4.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 212 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 108 IncrementalHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 97 mSDtfsCounter, 108 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=2, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 121 PreInvPairs, 174 NumberOfFragments, 289 HoareAnnotationTreeSize, 121 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 37 FomulaSimplificationsInter, 546 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: 40]: Loop Invariant
Derived loop invariant: v * 2 + u * u == v * v + u * 2 + A * 4 + r * 4
- InvariantResult [Line: 35]: Loop Invariant
Derived loop invariant: v * 2 + u * u == v * v + u * 2 + A * 4 + r * 4
- ProcedureContractResult [Line: 8]: Procedure Contract for assume_abort_if_not
Derived contract for procedure assume_abort_if_not: 1
- ProcedureContractResult [Line: 19]: Procedure Contract for main
Derived contract for procedure main: 1
- ProcedureContractResult [Line: 11]: Procedure Contract for __VERIFIER_assert
Derived contract for procedure __VERIFIER_assert: \old(cond) == cond || !(1 <= \old(cond))
RESULT: Ultimate proved your program to be correct!
[2022-03-18 02:57:02,832 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...