/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/nla-digbench-scaling/geo1-u_unwindbound100.c


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


This is Ultimate 0.2.2-dev-e106359-m
[2022-04-15 15:16:58,243 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-04-15 15:16:58,246 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-04-15 15:16:58,270 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-04-15 15:16:58,270 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-04-15 15:16:58,271 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-04-15 15:16:58,272 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-04-15 15:16:58,273 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-04-15 15:16:58,274 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-04-15 15:16:58,274 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-04-15 15:16:58,275 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-04-15 15:16:58,275 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-04-15 15:16:58,276 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-04-15 15:16:58,276 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-04-15 15:16:58,277 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-04-15 15:16:58,278 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-04-15 15:16:58,278 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-04-15 15:16:58,279 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-04-15 15:16:58,280 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-04-15 15:16:58,281 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-04-15 15:16:58,282 INFO  L181        SettingsManager]: Resetting HornVerifier preferences to default values
[2022-04-15 15:16:58,287 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-04-15 15:16:58,291 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-04-15 15:16:58,293 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-04-15 15:16:58,294 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-04-15 15:16:58,296 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-04-15 15:16:58,296 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-04-15 15:16:58,296 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-04-15 15:16:58,297 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-04-15 15:16:58,297 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-04-15 15:16:58,298 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-04-15 15:16:58,298 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-04-15 15:16:58,298 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-04-15 15:16:58,299 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-04-15 15:16:58,299 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-04-15 15:16:58,300 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-04-15 15:16:58,300 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-04-15 15:16:58,300 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-04-15 15:16:58,301 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-04-15 15:16:58,301 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2022-04-15 15:16:58,308 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-04-15 15:16:58,308 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 15:16:58,316 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-04-15 15:16:58,317 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-04-15 15:16:58,317 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-04-15 15:16:58,318 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-04-15 15:16:58,318 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-04-15 15:16:58,318 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-04-15 15:16:58,318 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-04-15 15:16:58,318 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-04-15 15:16:58,318 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-04-15 15:16:58,318 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-04-15 15:16:58,319 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-04-15 15:16:58,319 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-04-15 15:16:58,319 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-04-15 15:16:58,319 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-04-15 15:16:58,319 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-04-15 15:16:58,319 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-15 15:16:58,319 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-04-15 15:16:58,319 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=Craig_NestedInterpolation
[2022-04-15 15:16:58,319 INFO  L138        SettingsManager]:  * Trace refinement strategy=ACCELERATED_INTERPOLATION
[2022-04-15 15:16:58,320 INFO  L138        SettingsManager]:  * Trace refinement strategy used in Accelerated Interpolation=CAMEL
[2022-04-15 15:16:58,320 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-04-15 15:16:58,320 INFO  L138        SettingsManager]:  * Loop acceleration method that is used by accelerated interpolation=QVASR
[2022-04-15 15:16:58,320 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-04-15 15:16:58,480 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-04-15 15:16:58,509 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-04-15 15:16:58,510 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-04-15 15:16:58,511 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-04-15 15:16:58,512 INFO  L275        PluginConnector]: CDTParser initialized
[2022-04-15 15:16:58,513 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/geo1-u_unwindbound100.c
[2022-04-15 15:16:58,558 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4db234f57/3a6e042646c0436ea8604dc13a0968e9/FLAGabd11e34f
[2022-04-15 15:16:58,881 INFO  L306              CDTParser]: Found 1 translation units.
[2022-04-15 15:16:58,882 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-u_unwindbound100.c
[2022-04-15 15:16:58,885 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4db234f57/3a6e042646c0436ea8604dc13a0968e9/FLAGabd11e34f
[2022-04-15 15:16:58,911 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4db234f57/3a6e042646c0436ea8604dc13a0968e9
[2022-04-15 15:16:58,913 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-04-15 15:16:58,914 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2022-04-15 15:16:58,916 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-04-15 15:16:58,916 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-04-15 15:16:58,918 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-04-15 15:16:58,919 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 03:16:58" (1/1) ...
[2022-04-15 15:16:58,920 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ba39b72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:16:58, skipping insertion in model container
[2022-04-15 15:16:58,920 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 03:16:58" (1/1) ...
[2022-04-15 15:16:58,925 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-04-15 15:16:58,935 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-04-15 15:16:59,084 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/geo1-u_unwindbound100.c[555,568]
[2022-04-15 15:16:59,099 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-15 15:16:59,107 INFO  L203         MainTranslator]: Completed pre-run
[2022-04-15 15:16:59,115 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/geo1-u_unwindbound100.c[555,568]
[2022-04-15 15:16:59,124 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-15 15:16:59,134 INFO  L208         MainTranslator]: Completed translation
[2022-04-15 15:16:59,135 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:16:59 WrapperNode
[2022-04-15 15:16:59,135 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-04-15 15:16:59,135 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-04-15 15:16:59,135 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-04-15 15:16:59,136 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-04-15 15:16:59,143 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:16:59" (1/1) ...
[2022-04-15 15:16:59,143 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:16:59" (1/1) ...
[2022-04-15 15:16:59,148 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:16:59" (1/1) ...
[2022-04-15 15:16:59,148 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:16:59" (1/1) ...
[2022-04-15 15:16:59,158 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:16:59" (1/1) ...
[2022-04-15 15:16:59,163 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:16:59" (1/1) ...
[2022-04-15 15:16:59,164 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:16:59" (1/1) ...
[2022-04-15 15:16:59,169 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-04-15 15:16:59,170 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-04-15 15:16:59,170 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-04-15 15:16:59,170 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-04-15 15:16:59,170 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:16:59" (1/1) ...
[2022-04-15 15:16:59,175 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-15 15:16:59,185 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-15 15:16:59,198 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 15:16:59,215 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 15:16:59,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-04-15 15:16:59,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-04-15 15:16:59,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2022-04-15 15:16:59,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2022-04-15 15:16:59,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-04-15 15:16:59,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2022-04-15 15:16:59,235 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2022-04-15 15:16:59,235 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-04-15 15:16:59,235 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2022-04-15 15:16:59,235 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-04-15 15:16:59,235 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint
[2022-04-15 15:16:59,235 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2022-04-15 15:16:59,235 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-04-15 15:16:59,235 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2022-04-15 15:16:59,236 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-04-15 15:16:59,236 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-04-15 15:16:59,236 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-04-15 15:16:59,237 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-04-15 15:16:59,237 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-04-15 15:16:59,237 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-04-15 15:16:59,284 INFO  L234             CfgBuilder]: Building ICFG
[2022-04-15 15:16:59,285 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-04-15 15:16:59,421 INFO  L275             CfgBuilder]: Performing block encoding
[2022-04-15 15:16:59,425 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-04-15 15:16:59,425 INFO  L299             CfgBuilder]: Removed 1 assume(true) statements.
[2022-04-15 15:16:59,426 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 03:16:59 BoogieIcfgContainer
[2022-04-15 15:16:59,426 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-04-15 15:16:59,427 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-04-15 15:16:59,427 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-04-15 15:16:59,429 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-04-15 15:16:59,429 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 03:16:58" (1/3) ...
[2022-04-15 15:16:59,430 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 03:16:59, skipping insertion in model container
[2022-04-15 15:16:59,430 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:16:59" (2/3) ...
[2022-04-15 15:16:59,430 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 03:16:59, skipping insertion in model container
[2022-04-15 15:16:59,430 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 03:16:59" (3/3) ...
[2022-04-15 15:16:59,431 INFO  L111   eAbstractionObserver]: Analyzing ICFG geo1-u_unwindbound100.c
[2022-04-15 15:16:59,434 INFO  L202   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2022-04-15 15:16:59,434 INFO  L161   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-04-15 15:16:59,467 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-15 15:16:59,471 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 15:16:59,471 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-04-15 15:16:59,481 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 23 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 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 15:16:59,485 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-04-15 15:16:59,485 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-15 15:16:59,486 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-15 15:16:59,486 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-15 15:16:59,489 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-15 15:16:59,489 INFO  L85        PathProgramCache]: Analyzing trace with hash -1864317590, now seen corresponding path program 1 times
[2022-04-15 15:16:59,494 INFO  L118   FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION
[2022-04-15 15:16:59,494 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1651352982]
[2022-04-15 15:16:59,504 INFO  L202   tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-04-15 15:16:59,504 INFO  L85        PathProgramCache]: Analyzing trace with hash -1864317590, now seen corresponding path program 2 times
[2022-04-15 15:16:59,506 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-15 15:16:59,506 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140380842]
[2022-04-15 15:16:59,506 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-15 15:16:59,507 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-15 15:16:59,566 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-15 15:16:59,622 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-04-15 15:16:59,626 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-15 15:16:59,637 INFO  L290        TraceCheckUtils]: 0: Hoare triple {31#(and (= ~counter~0 |old(~counter~0)|) (= |#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(9, 2);call #Ultimate.allocInit(12, 3);~counter~0 := 0; {26#true} is VALID
[2022-04-15 15:16:59,638 INFO  L290        TraceCheckUtils]: 1: Hoare triple {26#true} assume true; {26#true} is VALID
[2022-04-15 15:16:59,638 INFO  L284        TraceCheckUtils]: 2: Hoare quadruple {26#true} {26#true} #55#return; {26#true} is VALID
[2022-04-15 15:16:59,644 INFO  L272        TraceCheckUtils]: 0: Hoare triple {26#true} call ULTIMATE.init(); {31#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID
[2022-04-15 15:16:59,644 INFO  L290        TraceCheckUtils]: 1: Hoare triple {31#(and (= ~counter~0 |old(~counter~0)|) (= |#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(9, 2);call #Ultimate.allocInit(12, 3);~counter~0 := 0; {26#true} is VALID
[2022-04-15 15:16:59,644 INFO  L290        TraceCheckUtils]: 2: Hoare triple {26#true} assume true; {26#true} is VALID
[2022-04-15 15:16:59,644 INFO  L284        TraceCheckUtils]: 3: Hoare quadruple {26#true} {26#true} #55#return; {26#true} is VALID
[2022-04-15 15:16:59,644 INFO  L272        TraceCheckUtils]: 4: Hoare triple {26#true} call #t~ret7 := main(); {26#true} is VALID
[2022-04-15 15:16:59,645 INFO  L290        TraceCheckUtils]: 5: Hoare triple {26#true} havoc ~z~0;havoc ~k~0;havoc ~x~0;havoc ~y~0;havoc ~c~0;~z~0 := #t~nondet4;havoc #t~nondet4;~k~0 := #t~nondet5;havoc #t~nondet5;~x~0 := 1;~y~0 := ~z~0 % 4294967296;~c~0 := 1; {26#true} is VALID
[2022-04-15 15:16:59,645 INFO  L290        TraceCheckUtils]: 6: Hoare triple {26#true} assume !true; {27#false} is VALID
[2022-04-15 15:16:59,646 INFO  L290        TraceCheckUtils]: 7: Hoare triple {27#false} ~x~0 := ~x~0 * ((~z~0 - 1) % 4294967296); {27#false} is VALID
[2022-04-15 15:16:59,646 INFO  L272        TraceCheckUtils]: 8: Hoare triple {27#false} call __VERIFIER_assert((if 0 == 1 + ~x~0 - ~y~0 then 1 else 0)); {27#false} is VALID
[2022-04-15 15:16:59,646 INFO  L290        TraceCheckUtils]: 9: Hoare triple {27#false} ~cond := #in~cond; {27#false} is VALID
[2022-04-15 15:16:59,646 INFO  L290        TraceCheckUtils]: 10: Hoare triple {27#false} assume 0 == ~cond; {27#false} is VALID
[2022-04-15 15:16:59,646 INFO  L290        TraceCheckUtils]: 11: Hoare triple {27#false} assume !false; {27#false} is VALID
[2022-04-15 15:16:59,646 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 15:16:59,647 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-15 15:16:59,647 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140380842]
[2022-04-15 15:16:59,647 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140380842] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-15 15:16:59,648 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-15 15:16:59,648 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-04-15 15:16:59,649 INFO  L136   FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace
[2022-04-15 15:16:59,649 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1651352982]
[2022-04-15 15:16:59,649 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1651352982] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-15 15:16:59,650 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-15 15:16:59,650 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-04-15 15:16:59,650 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615020530]
[2022-04-15 15:16:59,650 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-15 15:16:59,653 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2022-04-15 15:16:59,654 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2022-04-15 15:16:59,656 INFO  L86        InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with  has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-15 15:16:59,686 INFO  L122       InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2022-04-15 15:16:59,687 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-15 15:16:59,687 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION
[2022-04-15 15:16:59,700 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-15 15:16:59,701 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-15 15:16:59,702 INFO  L87              Difference]: Start difference. First operand  has 23 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 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 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-15 15:16:59,798 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-15 15:16:59,799 INFO  L93              Difference]: Finished difference Result 41 states and 52 transitions.
[2022-04-15 15:16:59,799 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-15 15:16:59,799 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2022-04-15 15:16:59,799 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-15 15:16:59,800 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-15 15:16:59,804 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions.
[2022-04-15 15:16:59,805 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-15 15:16:59,808 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions.
[2022-04-15 15:16:59,808 INFO  L86        InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 52 transitions.
[2022-04-15 15:16:59,868 INFO  L122       InductivityCheck]: Floyd-Hoare automaton has 52 edges. 52 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2022-04-15 15:16:59,873 INFO  L225             Difference]: With dead ends: 41
[2022-04-15 15:16:59,873 INFO  L226             Difference]: Without dead ends: 19
[2022-04-15 15:16:59,875 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-15 15:16:59,877 INFO  L913         BasicCegarLoop]: 24 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-15 15:16:59,878 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 28 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-15 15:16:59,893 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2022-04-15 15:16:59,901 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18.
[2022-04-15 15:16:59,902 INFO  L214    AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa
[2022-04-15 15:16:59,902 INFO  L82        GeneralOperation]: Start isEquivalent. First operand 19 states. Second operand  has 18 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-04-15 15:16:59,903 INFO  L74              IsIncluded]: Start isIncluded. First operand 19 states. Second operand  has 18 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-04-15 15:16:59,903 INFO  L87              Difference]: Start difference. First operand 19 states. Second operand  has 18 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-04-15 15:16:59,905 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-15 15:16:59,905 INFO  L93              Difference]: Finished difference Result 19 states and 21 transitions.
[2022-04-15 15:16:59,906 INFO  L276                IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions.
[2022-04-15 15:16:59,906 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-15 15:16:59,906 INFO  L83              IsIncluded]: Finished isIncluded. Language is included
[2022-04-15 15:16:59,906 INFO  L74              IsIncluded]: Start isIncluded. First operand  has 18 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 19 states.
[2022-04-15 15:16:59,907 INFO  L87              Difference]: Start difference. First operand  has 18 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 19 states.
[2022-04-15 15:16:59,909 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-15 15:16:59,909 INFO  L93              Difference]: Finished difference Result 19 states and 21 transitions.
[2022-04-15 15:16:59,909 INFO  L276                IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions.
[2022-04-15 15:16:59,909 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-15 15:16:59,909 INFO  L83              IsIncluded]: Finished isIncluded. Language is included
[2022-04-15 15:16:59,909 INFO  L88        GeneralOperation]: Finished isEquivalent.
[2022-04-15 15:16:59,910 INFO  L221    AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa
[2022-04-15 15:16:59,910 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-04-15 15:16:59,919 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions.
[2022-04-15 15:16:59,920 INFO  L78                 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12
[2022-04-15 15:16:59,920 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-15 15:16:59,921 INFO  L478      AbstractCegarLoop]: Abstraction has 18 states and 20 transitions.
[2022-04-15 15:16:59,921 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-15 15:16:59,921 INFO  L86        InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 18 states and 20 transitions.
[2022-04-15 15:16:59,970 INFO  L122       InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2022-04-15 15:16:59,970 INFO  L276                IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions.
[2022-04-15 15:16:59,971 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-04-15 15:16:59,971 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-15 15:16:59,971 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-15 15:16:59,971 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-04-15 15:16:59,972 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-15 15:16:59,973 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-15 15:16:59,973 INFO  L85        PathProgramCache]: Analyzing trace with hash 2049175951, now seen corresponding path program 1 times
[2022-04-15 15:16:59,973 INFO  L118   FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION
[2022-04-15 15:16:59,973 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [812519961]
[2022-04-15 15:16:59,974 INFO  L202   tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-04-15 15:16:59,974 INFO  L85        PathProgramCache]: Analyzing trace with hash 2049175951, now seen corresponding path program 2 times
[2022-04-15 15:16:59,974 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-15 15:16:59,974 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4044804]
[2022-04-15 15:16:59,974 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-15 15:16:59,975 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-15 15:16:59,986 ERROR L245   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-15 15:16:59,986 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1661127965]
[2022-04-15 15:16:59,986 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-04-15 15:16:59,986 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-15 15:16:59,987 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-15 15:16:59,989 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)
[2022-04-15 15:16:59,990 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-04-15 15:17:00,041 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2022-04-15 15:17:00,041 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-04-15 15:17:00,043 INFO  L263         TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core
[2022-04-15 15:17:00,056 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-15 15:17:00,058 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-04-15 15:17:00,199 INFO  L272        TraceCheckUtils]: 0: Hoare triple {190#true} call ULTIMATE.init(); {190#true} is VALID
[2022-04-15 15:17:00,199 INFO  L290        TraceCheckUtils]: 1: Hoare triple {190#true} #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(9, 2);call #Ultimate.allocInit(12, 3);~counter~0 := 0; {190#true} is VALID
[2022-04-15 15:17:00,199 INFO  L290        TraceCheckUtils]: 2: Hoare triple {190#true} assume true; {190#true} is VALID
[2022-04-15 15:17:00,199 INFO  L284        TraceCheckUtils]: 3: Hoare quadruple {190#true} {190#true} #55#return; {190#true} is VALID
[2022-04-15 15:17:00,200 INFO  L272        TraceCheckUtils]: 4: Hoare triple {190#true} call #t~ret7 := main(); {190#true} is VALID
[2022-04-15 15:17:00,200 INFO  L290        TraceCheckUtils]: 5: Hoare triple {190#true} havoc ~z~0;havoc ~k~0;havoc ~x~0;havoc ~y~0;havoc ~c~0;~z~0 := #t~nondet4;havoc #t~nondet4;~k~0 := #t~nondet5;havoc #t~nondet5;~x~0 := 1;~y~0 := ~z~0 % 4294967296;~c~0 := 1; {210#(and (= (mod main_~z~0 4294967296) main_~y~0) (= main_~x~0 1))} is VALID
[2022-04-15 15:17:00,201 INFO  L290        TraceCheckUtils]: 6: Hoare triple {210#(and (= (mod main_~z~0 4294967296) main_~y~0) (= main_~x~0 1))} #t~post6 := ~counter~0;~counter~0 := 1 + #t~post6; {210#(and (= (mod main_~z~0 4294967296) main_~y~0) (= main_~x~0 1))} is VALID
[2022-04-15 15:17:00,201 INFO  L290        TraceCheckUtils]: 7: Hoare triple {210#(and (= (mod main_~z~0 4294967296) main_~y~0) (= main_~x~0 1))} assume !!(#t~post6 < 100);havoc #t~post6; {210#(and (= (mod main_~z~0 4294967296) main_~y~0) (= main_~x~0 1))} is VALID
[2022-04-15 15:17:00,202 INFO  L272        TraceCheckUtils]: 8: Hoare triple {210#(and (= (mod main_~z~0 4294967296) main_~y~0) (= main_~x~0 1))} call __VERIFIER_assert((if 0 == 1 + (~x~0 * (~z~0 % 4294967296) - ~x~0 - ~y~0) then 1 else 0)); {220#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID
[2022-04-15 15:17:00,203 INFO  L290        TraceCheckUtils]: 9: Hoare triple {220#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {224#(<= 1 __VERIFIER_assert_~cond)} is VALID
[2022-04-15 15:17:00,203 INFO  L290        TraceCheckUtils]: 10: Hoare triple {224#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {191#false} is VALID
[2022-04-15 15:17:00,203 INFO  L290        TraceCheckUtils]: 11: Hoare triple {191#false} assume !false; {191#false} is VALID
[2022-04-15 15:17:00,204 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 15:17:00,204 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-04-15 15:17:00,204 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-15 15:17:00,204 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4044804]
[2022-04-15 15:17:00,204 WARN  L310   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-04-15 15:17:00,204 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661127965]
[2022-04-15 15:17:00,205 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661127965] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-15 15:17:00,205 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-15 15:17:00,205 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-04-15 15:17:00,205 INFO  L136   FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace
[2022-04-15 15:17:00,206 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [812519961]
[2022-04-15 15:17:00,206 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [812519961] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-15 15:17:00,206 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-15 15:17:00,206 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-04-15 15:17:00,206 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936731605]
[2022-04-15 15:17:00,206 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-15 15:17:00,207 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2022-04-15 15:17:00,207 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2022-04-15 15:17:00,207 INFO  L86        InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with  has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 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 15:17:00,218 INFO  L122       InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2022-04-15 15:17:00,219 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-04-15 15:17:00,219 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION
[2022-04-15 15:17:00,219 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-04-15 15:17:00,219 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-04-15 15:17:00,220 INFO  L87              Difference]: Start difference. First operand 18 states and 20 transitions. Second operand  has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 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 15:17:00,321 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-15 15:17:00,321 INFO  L93              Difference]: Finished difference Result 29 states and 33 transitions.
[2022-04-15 15:17:00,321 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-04-15 15:17:00,322 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2022-04-15 15:17:00,322 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-15 15:17:00,323 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 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 15:17:00,328 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions.
[2022-04-15 15:17:00,328 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 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 15:17:00,329 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions.
[2022-04-15 15:17:00,329 INFO  L86        InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 33 transitions.
[2022-04-15 15:17:00,354 INFO  L122       InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2022-04-15 15:17:00,359 INFO  L225             Difference]: With dead ends: 29
[2022-04-15 15:17:00,359 INFO  L226             Difference]: Without dead ends: 27
[2022-04-15 15:17:00,361 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2022-04-15 15:17:00,362 INFO  L913         BasicCegarLoop]: 16 mSDtfsCounter, 7 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-15 15:17:00,366 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 58 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-15 15:17:00,368 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2022-04-15 15:17:00,380 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25.
[2022-04-15 15:17:00,380 INFO  L214    AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa
[2022-04-15 15:17:00,381 INFO  L82        GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand  has 25 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2022-04-15 15:17:00,383 INFO  L74              IsIncluded]: Start isIncluded. First operand 27 states. Second operand  has 25 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2022-04-15 15:17:00,383 INFO  L87              Difference]: Start difference. First operand 27 states. Second operand  has 25 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2022-04-15 15:17:00,386 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-15 15:17:00,386 INFO  L93              Difference]: Finished difference Result 27 states and 31 transitions.
[2022-04-15 15:17:00,386 INFO  L276                IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions.
[2022-04-15 15:17:00,387 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-15 15:17:00,387 INFO  L83              IsIncluded]: Finished isIncluded. Language is included
[2022-04-15 15:17:00,387 INFO  L74              IsIncluded]: Start isIncluded. First operand  has 25 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand 27 states.
[2022-04-15 15:17:00,388 INFO  L87              Difference]: Start difference. First operand  has 25 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand 27 states.
[2022-04-15 15:17:00,393 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-15 15:17:00,393 INFO  L93              Difference]: Finished difference Result 27 states and 31 transitions.
[2022-04-15 15:17:00,393 INFO  L276                IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions.
[2022-04-15 15:17:00,394 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-15 15:17:00,394 INFO  L83              IsIncluded]: Finished isIncluded. Language is included
[2022-04-15 15:17:00,394 INFO  L88        GeneralOperation]: Finished isEquivalent.
[2022-04-15 15:17:00,394 INFO  L221    AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa
[2022-04-15 15:17:00,395 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 25 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2022-04-15 15:17:00,398 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions.
[2022-04-15 15:17:00,399 INFO  L78                 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 12
[2022-04-15 15:17:00,399 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-15 15:17:00,399 INFO  L478      AbstractCegarLoop]: Abstraction has 25 states and 28 transitions.
[2022-04-15 15:17:00,399 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 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 15:17:00,399 INFO  L86        InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 25 states and 28 transitions.
[2022-04-15 15:17:00,422 INFO  L122       InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2022-04-15 15:17:00,422 INFO  L276                IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions.
[2022-04-15 15:17:00,422 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2022-04-15 15:17:00,423 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-15 15:17:00,423 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-15 15:17:00,440 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-04-15 15:17:00,639 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
[2022-04-15 15:17:00,640 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-15 15:17:00,640 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-15 15:17:00,640 INFO  L85        PathProgramCache]: Analyzing trace with hash -975399299, now seen corresponding path program 1 times
[2022-04-15 15:17:00,640 INFO  L118   FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION
[2022-04-15 15:17:00,641 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [732377734]
[2022-04-15 15:17:00,641 INFO  L202   tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-04-15 15:17:00,641 INFO  L85        PathProgramCache]: Analyzing trace with hash -975399299, now seen corresponding path program 2 times
[2022-04-15 15:17:00,642 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-15 15:17:00,642 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247435163]
[2022-04-15 15:17:00,642 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-15 15:17:00,642 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-15 15:17:00,653 ERROR L245   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-15 15:17:00,653 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1217169453]
[2022-04-15 15:17:00,654 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-04-15 15:17:00,654 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-15 15:17:00,654 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-15 15:17:00,655 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)
[2022-04-15 15:17:00,656 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-04-15 15:17:00,686 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2022-04-15 15:17:00,686 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-04-15 15:17:00,687 INFO  L263         TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core
[2022-04-15 15:17:00,708 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-15 15:17:00,709 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-04-15 15:17:00,799 INFO  L272        TraceCheckUtils]: 0: Hoare triple {394#true} call ULTIMATE.init(); {394#true} is VALID
[2022-04-15 15:17:00,800 INFO  L290        TraceCheckUtils]: 1: Hoare triple {394#true} #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(9, 2);call #Ultimate.allocInit(12, 3);~counter~0 := 0; {402#(<= ~counter~0 0)} is VALID
[2022-04-15 15:17:00,800 INFO  L290        TraceCheckUtils]: 2: Hoare triple {402#(<= ~counter~0 0)} assume true; {402#(<= ~counter~0 0)} is VALID
[2022-04-15 15:17:00,801 INFO  L284        TraceCheckUtils]: 3: Hoare quadruple {402#(<= ~counter~0 0)} {394#true} #55#return; {402#(<= ~counter~0 0)} is VALID
[2022-04-15 15:17:00,801 INFO  L272        TraceCheckUtils]: 4: Hoare triple {402#(<= ~counter~0 0)} call #t~ret7 := main(); {402#(<= ~counter~0 0)} is VALID
[2022-04-15 15:17:00,802 INFO  L290        TraceCheckUtils]: 5: Hoare triple {402#(<= ~counter~0 0)} havoc ~z~0;havoc ~k~0;havoc ~x~0;havoc ~y~0;havoc ~c~0;~z~0 := #t~nondet4;havoc #t~nondet4;~k~0 := #t~nondet5;havoc #t~nondet5;~x~0 := 1;~y~0 := ~z~0 % 4294967296;~c~0 := 1; {402#(<= ~counter~0 0)} is VALID
[2022-04-15 15:17:00,802 INFO  L290        TraceCheckUtils]: 6: Hoare triple {402#(<= ~counter~0 0)} #t~post6 := ~counter~0;~counter~0 := 1 + #t~post6; {418#(<= |main_#t~post6| 0)} is VALID
[2022-04-15 15:17:00,803 INFO  L290        TraceCheckUtils]: 7: Hoare triple {418#(<= |main_#t~post6| 0)} assume !(#t~post6 < 100);havoc #t~post6; {395#false} is VALID
[2022-04-15 15:17:00,803 INFO  L290        TraceCheckUtils]: 8: Hoare triple {395#false} ~x~0 := ~x~0 * ((~z~0 - 1) % 4294967296); {395#false} is VALID
[2022-04-15 15:17:00,804 INFO  L272        TraceCheckUtils]: 9: Hoare triple {395#false} call __VERIFIER_assert((if 0 == 1 + ~x~0 - ~y~0 then 1 else 0)); {395#false} is VALID
[2022-04-15 15:17:00,804 INFO  L290        TraceCheckUtils]: 10: Hoare triple {395#false} ~cond := #in~cond; {395#false} is VALID
[2022-04-15 15:17:00,804 INFO  L290        TraceCheckUtils]: 11: Hoare triple {395#false} assume 0 == ~cond; {395#false} is VALID
[2022-04-15 15:17:00,804 INFO  L290        TraceCheckUtils]: 12: Hoare triple {395#false} assume !false; {395#false} is VALID
[2022-04-15 15:17:00,805 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 15:17:00,805 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-04-15 15:17:00,805 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-15 15:17:00,805 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247435163]
[2022-04-15 15:17:00,805 WARN  L310   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-04-15 15:17:00,806 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217169453]
[2022-04-15 15:17:00,806 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217169453] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-15 15:17:00,806 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-15 15:17:00,806 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-04-15 15:17:00,807 INFO  L136   FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace
[2022-04-15 15:17:00,807 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [732377734]
[2022-04-15 15:17:00,807 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [732377734] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-15 15:17:00,807 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-15 15:17:00,807 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-04-15 15:17:00,808 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617137862]
[2022-04-15 15:17:00,808 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-15 15:17:00,808 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 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 13
[2022-04-15 15:17:00,808 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2022-04-15 15:17:00,809 INFO  L86        InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with  has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 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 15:17:00,818 INFO  L122       InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2022-04-15 15:17:00,818 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-04-15 15:17:00,818 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION
[2022-04-15 15:17:00,818 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-04-15 15:17:00,818 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-04-15 15:17:00,820 INFO  L87              Difference]: Start difference. First operand 25 states and 28 transitions. Second operand  has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 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 15:17:00,864 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-15 15:17:00,864 INFO  L93              Difference]: Finished difference Result 33 states and 35 transitions.
[2022-04-15 15:17:00,864 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-04-15 15:17:00,864 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 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 13
[2022-04-15 15:17:00,865 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-15 15:17:00,865 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 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 15:17:00,866 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions.
[2022-04-15 15:17:00,866 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 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 15:17:00,867 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions.
[2022-04-15 15:17:00,867 INFO  L86        InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 30 transitions.
[2022-04-15 15:17:00,886 INFO  L122       InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2022-04-15 15:17:00,887 INFO  L225             Difference]: With dead ends: 33
[2022-04-15 15:17:00,887 INFO  L226             Difference]: Without dead ends: 25
[2022-04-15 15:17:00,888 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-04-15 15:17:00,888 INFO  L913         BasicCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-15 15:17:00,889 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-15 15:17:00,889 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2022-04-15 15:17:00,900 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25.
[2022-04-15 15:17:00,900 INFO  L214    AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa
[2022-04-15 15:17:00,901 INFO  L82        GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand  has 25 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2022-04-15 15:17:00,901 INFO  L74              IsIncluded]: Start isIncluded. First operand 25 states. Second operand  has 25 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2022-04-15 15:17:00,901 INFO  L87              Difference]: Start difference. First operand 25 states. Second operand  has 25 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2022-04-15 15:17:00,902 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-15 15:17:00,903 INFO  L93              Difference]: Finished difference Result 25 states and 27 transitions.
[2022-04-15 15:17:00,903 INFO  L276                IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions.
[2022-04-15 15:17:00,903 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-15 15:17:00,903 INFO  L83              IsIncluded]: Finished isIncluded. Language is included
[2022-04-15 15:17:00,903 INFO  L74              IsIncluded]: Start isIncluded. First operand  has 25 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand 25 states.
[2022-04-15 15:17:00,903 INFO  L87              Difference]: Start difference. First operand  has 25 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand 25 states.
[2022-04-15 15:17:00,904 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-15 15:17:00,905 INFO  L93              Difference]: Finished difference Result 25 states and 27 transitions.
[2022-04-15 15:17:00,905 INFO  L276                IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions.
[2022-04-15 15:17:00,905 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-15 15:17:00,905 INFO  L83              IsIncluded]: Finished isIncluded. Language is included
[2022-04-15 15:17:00,905 INFO  L88        GeneralOperation]: Finished isEquivalent.
[2022-04-15 15:17:00,905 INFO  L221    AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa
[2022-04-15 15:17:00,905 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 25 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2022-04-15 15:17:00,906 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions.
[2022-04-15 15:17:00,906 INFO  L78                 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 13
[2022-04-15 15:17:00,907 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-15 15:17:00,907 INFO  L478      AbstractCegarLoop]: Abstraction has 25 states and 27 transitions.
[2022-04-15 15:17:00,907 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 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 15:17:00,907 INFO  L86        InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 25 states and 27 transitions.
[2022-04-15 15:17:00,941 INFO  L122       InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2022-04-15 15:17:00,941 INFO  L276                IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions.
[2022-04-15 15:17:00,946 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2022-04-15 15:17:00,946 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-15 15:17:00,946 INFO  L499         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-15 15:17:00,965 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-04-15 15:17:01,159 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
[2022-04-15 15:17:01,160 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-15 15:17:01,160 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-15 15:17:01,160 INFO  L85        PathProgramCache]: Analyzing trace with hash 198190047, now seen corresponding path program 1 times
[2022-04-15 15:17:01,160 INFO  L118   FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION
[2022-04-15 15:17:01,160 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [475709511]
[2022-04-15 15:17:01,161 INFO  L202   tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-04-15 15:17:01,161 INFO  L85        PathProgramCache]: Analyzing trace with hash 198190047, now seen corresponding path program 2 times
[2022-04-15 15:17:01,161 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-15 15:17:01,161 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200514999]
[2022-04-15 15:17:01,161 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-15 15:17:01,162 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-15 15:17:01,171 ERROR L245   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-15 15:17:01,171 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [962872107]
[2022-04-15 15:17:01,172 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-04-15 15:17:01,172 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-15 15:17:01,172 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-15 15:17:01,173 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-04-15 15:17:01,174 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-04-15 15:17:01,206 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-04-15 15:17:01,206 INFO  L229   tOrderPrioritization]: Conjunction of SSA is sat
[2022-04-15 15:17:01,206 INFO  L352             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-04-15 15:17:01,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-15 15:17:01,271 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-04-15 15:17:01,271 INFO  L130   FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace
[2022-04-15 15:17:01,272 INFO  L618         BasicCegarLoop]: Counterexample is feasible
[2022-04-15 15:17:01,273 INFO  L788   garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-04-15 15:17:01,297 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-04-15 15:17:01,474 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-15 15:17:01,478 INFO  L719         BasicCegarLoop]: Path program histogram: [2, 2, 2, 2]
[2022-04-15 15:17:01,480 INFO  L177   ceAbstractionStarter]: Computing trace abstraction results
[2022-04-15 15:17:01,492 WARN  L170   areAnnotationChecker]: reach_errorENTRY has no Hoare annotation
[2022-04-15 15:17:01,492 WARN  L170   areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation
[2022-04-15 15:17:01,492 WARN  L170   areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation
[2022-04-15 15:17:01,492 WARN  L170   areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation
[2022-04-15 15:17:01,492 WARN  L170   areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation
[2022-04-15 15:17:01,492 WARN  L170   areAnnotationChecker]: mainENTRY has no Hoare annotation
[2022-04-15 15:17:01,492 WARN  L170   areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation
[2022-04-15 15:17:01,492 WARN  L170   areAnnotationChecker]: reach_errorFINAL has no Hoare annotation
[2022-04-15 15:17:01,492 WARN  L170   areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation
[2022-04-15 15:17:01,493 WARN  L170   areAnnotationChecker]: L-1 has no Hoare annotation
[2022-04-15 15:17:01,493 WARN  L170   areAnnotationChecker]: L-1 has no Hoare annotation
[2022-04-15 15:17:01,493 WARN  L170   areAnnotationChecker]: L13 has no Hoare annotation
[2022-04-15 15:17:01,493 WARN  L170   areAnnotationChecker]: L13 has no Hoare annotation
[2022-04-15 15:17:01,493 WARN  L170   areAnnotationChecker]: L33-3 has no Hoare annotation
[2022-04-15 15:17:01,493 WARN  L170   areAnnotationChecker]: L33-3 has no Hoare annotation
[2022-04-15 15:17:01,493 WARN  L170   areAnnotationChecker]: L16 has no Hoare annotation
[2022-04-15 15:17:01,493 WARN  L170   areAnnotationChecker]: L16 has no Hoare annotation
[2022-04-15 15:17:01,493 WARN  L170   areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation
[2022-04-15 15:17:01,493 WARN  L170   areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation
[2022-04-15 15:17:01,493 WARN  L170   areAnnotationChecker]: L13-2 has no Hoare annotation
[2022-04-15 15:17:01,493 WARN  L170   areAnnotationChecker]: L33-4 has no Hoare annotation
[2022-04-15 15:17:01,493 WARN  L170   areAnnotationChecker]: L33-1 has no Hoare annotation
[2022-04-15 15:17:01,493 WARN  L170   areAnnotationChecker]: L33-1 has no Hoare annotation
[2022-04-15 15:17:01,493 WARN  L170   areAnnotationChecker]: L17 has no Hoare annotation
[2022-04-15 15:17:01,493 WARN  L170   areAnnotationChecker]: L17 has no Hoare annotation
[2022-04-15 15:17:01,494 WARN  L170   areAnnotationChecker]: L16-2 has no Hoare annotation
[2022-04-15 15:17:01,494 WARN  L170   areAnnotationChecker]: L47 has no Hoare annotation
[2022-04-15 15:17:01,494 WARN  L170   areAnnotationChecker]: L47 has no Hoare annotation
[2022-04-15 15:17:01,494 WARN  L170   areAnnotationChecker]: L34 has no Hoare annotation
[2022-04-15 15:17:01,494 WARN  L170   areAnnotationChecker]: L34 has no Hoare annotation
[2022-04-15 15:17:01,494 WARN  L170   areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation
[2022-04-15 15:17:01,494 WARN  L170   areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation
[2022-04-15 15:17:01,494 WARN  L170   areAnnotationChecker]: L47-1 has no Hoare annotation
[2022-04-15 15:17:01,494 WARN  L170   areAnnotationChecker]: L34-1 has no Hoare annotation
[2022-04-15 15:17:01,494 WARN  L170   areAnnotationChecker]: L34-1 has no Hoare annotation
[2022-04-15 15:17:01,494 WARN  L170   areAnnotationChecker]: mainFINAL has no Hoare annotation
[2022-04-15 15:17:01,494 WARN  L170   areAnnotationChecker]: mainEXIT has no Hoare annotation
[2022-04-15 15:17:01,494 INFO  L163   areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing.
[2022-04-15 15:17:01,495 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 03:17:01 BoogieIcfgContainer
[2022-04-15 15:17:01,495 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-04-15 15:17:01,497 INFO  L158              Benchmark]: Toolchain (without parser) took 2582.19ms. Allocated memory was 200.3MB in the beginning and 260.0MB in the end (delta: 59.8MB). Free memory was 150.2MB in the beginning and 177.3MB in the end (delta: -27.1MB). Peak memory consumption was 33.0MB. Max. memory is 8.0GB.
[2022-04-15 15:17:01,497 INFO  L158              Benchmark]: CDTParser took 0.13ms. Allocated memory is still 200.3MB. Free memory was 166.9MB in the beginning and 166.7MB in the end (delta: 150.3kB). There was no memory consumed. Max. memory is 8.0GB.
[2022-04-15 15:17:01,497 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 219.35ms. Allocated memory is still 200.3MB. Free memory was 150.1MB in the beginning and 176.9MB in the end (delta: -26.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
[2022-04-15 15:17:01,497 INFO  L158              Benchmark]: Boogie Preprocessor took 33.68ms. Allocated memory is still 200.3MB. Free memory was 176.9MB in the beginning and 175.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-04-15 15:17:01,498 INFO  L158              Benchmark]: RCFGBuilder took 256.59ms. Allocated memory is still 200.3MB. Free memory was 175.4MB in the beginning and 164.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
[2022-04-15 15:17:01,498 INFO  L158              Benchmark]: TraceAbstraction took 2068.19ms. Allocated memory was 200.3MB in the beginning and 260.0MB in the end (delta: 59.8MB). Free memory was 164.5MB in the beginning and 177.3MB in the end (delta: -12.8MB). Peak memory consumption was 47.8MB. Max. memory is 8.0GB.
[2022-04-15 15:17:01,499 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 200.3MB. Free memory was 166.9MB in the beginning and 166.7MB in the end (delta: 150.3kB). There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 219.35ms. Allocated memory is still 200.3MB. Free memory was 150.1MB in the beginning and 176.9MB in the end (delta: -26.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 33.68ms. Allocated memory is still 200.3MB. Free memory was 176.9MB in the beginning and 175.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
 * RCFGBuilder took 256.59ms. Allocated memory is still 200.3MB. Free memory was 175.4MB in the beginning and 164.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
 * TraceAbstraction took 2068.19ms. Allocated memory was 200.3MB in the beginning and 260.0MB in the end (delta: 59.8MB). Free memory was 164.5MB in the beginning and 177.3MB in the end (delta: -12.8MB). Peak memory consumption was 47.8MB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - CounterExampleResult [Line: 18]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L22]              int counter = 0;
[L24]              unsigned int z, k;
[L25]              long long x, y, c;
[L26]              z = __VERIFIER_nondet_uint()
[L27]              k = __VERIFIER_nondet_uint()
[L29]              x = 1
[L30]              y = z
[L31]              c = 1
[L33]  EXPR        counter++
[L33]  COND TRUE   counter++<100
[L34]  CALL        __VERIFIER_assert(x*z - x - y + 1 == 0)
[L16]  COND FALSE  !(!(cond))
[L34]  RET         __VERIFIER_assert(x*z - x - y + 1 == 0)
[L36]  COND TRUE   !(c < k)
[L45]              x = x * (z - 1)
[L47]  CALL        __VERIFIER_assert(1 + x - y == 0)
[L16]  COND TRUE   !(cond)
[L18]              reach_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 6 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 134 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 76 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 58 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=2, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, 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
RESULT: Ultimate proved your program to be incorrect!
[2022-04-15 15:17:01,533 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...