/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/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/in-de31.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-dev-34549b5
[2022-04-08 04:08:25,405 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-04-08 04:08:25,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-04-08 04:08:25,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-04-08 04:08:25,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-04-08 04:08:25,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-04-08 04:08:25,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-04-08 04:08:25,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-04-08 04:08:25,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-04-08 04:08:25,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-04-08 04:08:25,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-04-08 04:08:25,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-04-08 04:08:25,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-04-08 04:08:25,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-04-08 04:08:25,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-04-08 04:08:25,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-04-08 04:08:25,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-04-08 04:08:25,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-04-08 04:08:25,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-04-08 04:08:25,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-04-08 04:08:25,462 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values
[2022-04-08 04:08:25,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-04-08 04:08:25,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-04-08 04:08:25,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-04-08 04:08:25,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-04-08 04:08:25,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-04-08 04:08:25,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-04-08 04:08:25,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-04-08 04:08:25,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-04-08 04:08:25,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-04-08 04:08:25,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-04-08 04:08:25,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-04-08 04:08:25,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-04-08 04:08:25,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-04-08 04:08:25,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-04-08 04:08:25,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-04-08 04:08:25,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-04-08 04:08:25,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-04-08 04:08:25,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-04-08 04:08:25,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-04-08 04:08:25,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-04-08 04:08:25,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-04-08 04:08:25,491 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf
[2022-04-08 04:08:25,499 INFO L113 SettingsManager]: Loading preferences was successful
[2022-04-08 04:08:25,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-04-08 04:08:25,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-04-08 04:08:25,501 INFO L138 SettingsManager]: * sizeof long=4
[2022-04-08 04:08:25,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-04-08 04:08:25,501 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-04-08 04:08:25,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-04-08 04:08:25,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-04-08 04:08:25,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-04-08 04:08:25,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-04-08 04:08:25,502 INFO L138 SettingsManager]: * sizeof long double=12
[2022-04-08 04:08:25,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-04-08 04:08:25,502 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-04-08 04:08:25,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-04-08 04:08:25,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-04-08 04:08:25,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-04-08 04:08:25,503 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-04-08 04:08:25,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-04-08 04:08:25,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-08 04:08:25,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-04-08 04:08:25,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation
[2022-04-08 04:08:25,503 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION
[2022-04-08 04:08:25,503 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL
[2022-04-08 04:08:25,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-04-08 04:08:25,504 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN
[2022-04-08 04:08:25,504 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-04-08 04:08:25,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-04-08 04:08:25,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-04-08 04:08:25,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-04-08 04:08:25,756 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-04-08 04:08:25,759 INFO L275 PluginConnector]: CDTParser initialized
[2022-04-08 04:08:25,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/in-de31.c
[2022-04-08 04:08:25,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fe91fd43/ebb5f222accd432a9217676cdb6976bc/FLAG1b2c3c5ba
[2022-04-08 04:08:26,148 INFO L306 CDTParser]: Found 1 translation units.
[2022-04-08 04:08:26,149 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/in-de31.c
[2022-04-08 04:08:26,154 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fe91fd43/ebb5f222accd432a9217676cdb6976bc/FLAG1b2c3c5ba
[2022-04-08 04:08:26,587 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fe91fd43/ebb5f222accd432a9217676cdb6976bc
[2022-04-08 04:08:26,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-04-08 04:08:26,591 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2022-04-08 04:08:26,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-04-08 04:08:26,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-04-08 04:08:26,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-04-08 04:08:26,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 04:08:26" (1/1) ...
[2022-04-08 04:08:26,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c5b625e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:08:26, skipping insertion in model container
[2022-04-08 04:08:26,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 04:08:26" (1/1) ...
[2022-04-08 04:08:26,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-04-08 04:08:26,614 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-04-08 04:08:26,730 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/in-de31.c[368,381]
[2022-04-08 04:08:26,741 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-04-08 04:08:26,753 INFO L203 MainTranslator]: Completed pre-run
[2022-04-08 04:08:26,780 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/in-de31.c[368,381]
[2022-04-08 04:08:26,790 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-04-08 04:08:26,804 INFO L208 MainTranslator]: Completed translation
[2022-04-08 04:08:26,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:08:26 WrapperNode
[2022-04-08 04:08:26,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-04-08 04:08:26,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-04-08 04:08:26,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-04-08 04:08:26,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-04-08 04:08:26,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:08:26" (1/1) ...
[2022-04-08 04:08:26,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:08:26" (1/1) ...
[2022-04-08 04:08:26,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:08:26" (1/1) ...
[2022-04-08 04:08:26,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:08:26" (1/1) ...
[2022-04-08 04:08:26,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:08:26" (1/1) ...
[2022-04-08 04:08:26,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:08:26" (1/1) ...
[2022-04-08 04:08:26,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:08:26" (1/1) ...
[2022-04-08 04:08:26,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-04-08 04:08:26,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-04-08 04:08:26,850 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-04-08 04:08:26,850 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-04-08 04:08:26,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:08:26" (1/1) ...
[2022-04-08 04:08:26,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-08 04:08:26,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-08 04:08:26,884 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)
[2022-04-08 04:08:26,909 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
[2022-04-08 04:08:26,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-04-08 04:08:26,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-04-08 04:08:26,930 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2022-04-08 04:08:26,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-04-08 04:08:26,930 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2022-04-08 04:08:26,930 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2022-04-08 04:08:26,930 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-04-08 04:08:26,930 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2022-04-08 04:08:26,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-04-08 04:08:26,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint
[2022-04-08 04:08:26,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-04-08 04:08:26,932 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2022-04-08 04:08:26,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-04-08 04:08:26,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-04-08 04:08:26,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-04-08 04:08:26,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-04-08 04:08:26,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-04-08 04:08:26,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-04-08 04:08:26,990 INFO L234 CfgBuilder]: Building ICFG
[2022-04-08 04:08:26,991 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-04-08 04:08:27,107 INFO L275 CfgBuilder]: Performing block encoding
[2022-04-08 04:08:27,112 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-04-08 04:08:27,113 INFO L299 CfgBuilder]: Removed 3 assume(true) statements.
[2022-04-08 04:08:27,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 04:08:27 BoogieIcfgContainer
[2022-04-08 04:08:27,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-04-08 04:08:27,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-04-08 04:08:27,116 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-04-08 04:08:27,119 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-04-08 04:08:27,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.04 04:08:26" (1/3) ...
[2022-04-08 04:08:27,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f11ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 04:08:27, skipping insertion in model container
[2022-04-08 04:08:27,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:08:26" (2/3) ...
[2022-04-08 04:08:27,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f11ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 04:08:27, skipping insertion in model container
[2022-04-08 04:08:27,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 04:08:27" (3/3) ...
[2022-04-08 04:08:27,121 INFO L111 eAbstractionObserver]: Analyzing ICFG in-de31.c
[2022-04-08 04:08:27,125 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2022-04-08 04:08:27,125 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-04-08 04:08:27,169 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-08 04:08:27,181 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
[2022-04-08 04:08:27,181 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-04-08 04:08:27,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-04-08 04:08:27,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2022-04-08 04:08:27,207 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-08 04:08:27,207 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-08 04:08:27,208 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-08 04:08:27,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-08 04:08:27,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1792812365, now seen corresponding path program 1 times
[2022-04-08 04:08:27,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION
[2022-04-08 04:08:27,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [308622841]
[2022-04-08 04:08:27,231 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-04-08 04:08:27,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1792812365, now seen corresponding path program 2 times
[2022-04-08 04:08:27,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-08 04:08:27,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334380972]
[2022-04-08 04:08:27,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-08 04:08:27,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-08 04:08:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-08 04:08:27,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-04-08 04:08:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-08 04:08:27,675 INFO L290 TraceCheckUtils]: 0: Hoare triple {35#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); {25#true} is VALID
[2022-04-08 04:08:27,675 INFO L290 TraceCheckUtils]: 1: Hoare triple {25#true} assume true; {25#true} is VALID
[2022-04-08 04:08:27,675 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {25#true} {25#true} #61#return; {25#true} is VALID
[2022-04-08 04:08:27,678 INFO L272 TraceCheckUtils]: 0: Hoare triple {25#true} call ULTIMATE.init(); {35#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID
[2022-04-08 04:08:27,679 INFO L290 TraceCheckUtils]: 1: Hoare triple {35#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); {25#true} is VALID
[2022-04-08 04:08:27,679 INFO L290 TraceCheckUtils]: 2: Hoare triple {25#true} assume true; {25#true} is VALID
[2022-04-08 04:08:27,679 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {25#true} {25#true} #61#return; {25#true} is VALID
[2022-04-08 04:08:27,680 INFO L272 TraceCheckUtils]: 4: Hoare triple {25#true} call #t~ret11 := main(); {25#true} is VALID
[2022-04-08 04:08:27,680 INFO L290 TraceCheckUtils]: 5: Hoare triple {25#true} ~n~0 := #t~nondet4;havoc #t~nondet4;~x~0 := ~n~0;~y~0 := 0;havoc ~z~0; {30#(and (= 0 (+ main_~x~0 (* (- 1) main_~n~0))) (= main_~y~0 0))} is VALID
[2022-04-08 04:08:27,682 INFO L290 TraceCheckUtils]: 6: Hoare triple {30#(and (= 0 (+ main_~x~0 (* (- 1) main_~n~0))) (= main_~y~0 0))} assume !(~x~0 % 4294967296 > 0); {31#(and (<= main_~n~0 (* (div main_~n~0 4294967296) 4294967296)) (= main_~y~0 0))} is VALID
[2022-04-08 04:08:27,683 INFO L290 TraceCheckUtils]: 7: Hoare triple {31#(and (<= main_~n~0 (* (div main_~n~0 4294967296) 4294967296)) (= main_~y~0 0))} ~z~0 := ~y~0; {32#(and (= main_~z~0 0) (< (+ main_~n~0 (* (div main_~z~0 4294967296) 4294967296)) (+ main_~z~0 (* (div main_~n~0 4294967296) 4294967296) 1)))} is VALID
[2022-04-08 04:08:27,683 INFO L290 TraceCheckUtils]: 8: Hoare triple {32#(and (= main_~z~0 0) (< (+ main_~n~0 (* (div main_~z~0 4294967296) 4294967296)) (+ main_~z~0 (* (div main_~n~0 4294967296) 4294967296) 1)))} assume !(~z~0 % 4294967296 > 0); {32#(and (= main_~z~0 0) (< (+ main_~n~0 (* (div main_~z~0 4294967296) 4294967296)) (+ main_~z~0 (* (div main_~n~0 4294967296) 4294967296) 1)))} is VALID
[2022-04-08 04:08:27,684 INFO L290 TraceCheckUtils]: 9: Hoare triple {32#(and (= main_~z~0 0) (< (+ main_~n~0 (* (div main_~z~0 4294967296) 4294967296)) (+ main_~z~0 (* (div main_~n~0 4294967296) 4294967296) 1)))} assume !(~y~0 % 4294967296 > 0); {32#(and (= main_~z~0 0) (< (+ main_~n~0 (* (div main_~z~0 4294967296) 4294967296)) (+ main_~z~0 (* (div main_~n~0 4294967296) 4294967296) 1)))} is VALID
[2022-04-08 04:08:27,691 INFO L272 TraceCheckUtils]: 10: Hoare triple {32#(and (= main_~z~0 0) (< (+ main_~n~0 (* (div main_~z~0 4294967296) 4294967296)) (+ main_~z~0 (* (div main_~n~0 4294967296) 4294967296) 1)))} call __VERIFIER_assert((if ~z~0 % 4294967296 == ~n~0 % 4294967296 then 1 else 0)); {33#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID
[2022-04-08 04:08:27,692 INFO L290 TraceCheckUtils]: 11: Hoare triple {33#(not (= |__VERIFIER_assert_#in~cond| 0))} ~cond := #in~cond; {34#(not (= __VERIFIER_assert_~cond 0))} is VALID
[2022-04-08 04:08:27,692 INFO L290 TraceCheckUtils]: 12: Hoare triple {34#(not (= __VERIFIER_assert_~cond 0))} assume 0 == ~cond; {26#false} is VALID
[2022-04-08 04:08:27,693 INFO L290 TraceCheckUtils]: 13: Hoare triple {26#false} assume !false; {26#false} is VALID
[2022-04-08 04:08:27,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-08 04:08:27,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-08 04:08:27,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334380972]
[2022-04-08 04:08:27,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334380972] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-08 04:08:27,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-08 04:08:27,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-04-08 04:08:27,700 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace
[2022-04-08 04:08:27,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [308622841]
[2022-04-08 04:08:27,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [308622841] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-08 04:08:27,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-08 04:08:27,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-04-08 04:08:27,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786930474]
[2022-04-08 04:08:27,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-08 04:08:27,709 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.25) internal successors, (10), 6 states have internal predecessors, (10), 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 14
[2022-04-08 04:08:27,710 INFO L84 Accepts]: Finished accepts. word is accepted.
[2022-04-08 04:08:27,713 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 8 states, 8 states have (on average 1.25) internal successors, (10), 6 states have internal predecessors, (10), 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)
[2022-04-08 04:08:27,738 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2022-04-08 04:08:27,739 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-04-08 04:08:27,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION
[2022-04-08 04:08:27,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-04-08 04:08:27,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2022-04-08 04:08:27,770 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 6 states have internal predecessors, (10), 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)
[2022-04-08 04:08:28,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-08 04:08:28,263 INFO L93 Difference]: Finished difference Result 49 states and 68 transitions.
[2022-04-08 04:08:28,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-04-08 04:08:28,263 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.25) internal successors, (10), 6 states have internal predecessors, (10), 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 14
[2022-04-08 04:08:28,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-08 04:08:28,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 6 states have internal predecessors, (10), 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)
[2022-04-08 04:08:28,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 68 transitions.
[2022-04-08 04:08:28,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 6 states have internal predecessors, (10), 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)
[2022-04-08 04:08:28,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 68 transitions.
[2022-04-08 04:08:28,277 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 9 states and 68 transitions.
[2022-04-08 04:08:28,345 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2022-04-08 04:08:28,353 INFO L225 Difference]: With dead ends: 49
[2022-04-08 04:08:28,354 INFO L226 Difference]: Without dead ends: 16
[2022-04-08 04:08:28,357 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182
[2022-04-08 04:08:28,360 INFO L913 BasicCegarLoop]: 16 mSDtfsCounter, 43 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-04-08 04:08:28,361 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 49 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-04-08 04:08:28,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2022-04-08 04:08:28,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16.
[2022-04-08 04:08:28,386 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa
[2022-04-08 04:08:28,387 INFO L82 GeneralOperation]: Start isEquivalent. First operand 16 states. Second operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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)
[2022-04-08 04:08:28,387 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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)
[2022-04-08 04:08:28,387 INFO L87 Difference]: Start difference. First operand 16 states. Second operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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)
[2022-04-08 04:08:28,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-08 04:08:28,390 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions.
[2022-04-08 04:08:28,390 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions.
[2022-04-08 04:08:28,390 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-08 04:08:28,390 INFO L83 IsIncluded]: Finished isIncluded. Language is included
[2022-04-08 04:08:28,391 INFO L74 IsIncluded]: Start isIncluded. First operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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) Second operand 16 states.
[2022-04-08 04:08:28,391 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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) Second operand 16 states.
[2022-04-08 04:08:28,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-08 04:08:28,393 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions.
[2022-04-08 04:08:28,393 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions.
[2022-04-08 04:08:28,393 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-08 04:08:28,393 INFO L83 IsIncluded]: Finished isIncluded. Language is included
[2022-04-08 04:08:28,394 INFO L88 GeneralOperation]: Finished isEquivalent.
[2022-04-08 04:08:28,394 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa
[2022-04-08 04:08:28,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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)
[2022-04-08 04:08:28,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions.
[2022-04-08 04:08:28,396 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 14
[2022-04-08 04:08:28,397 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-04-08 04:08:28,397 INFO L478 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions.
[2022-04-08 04:08:28,397 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.25) internal successors, (10), 6 states have internal predecessors, (10), 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)
[2022-04-08 04:08:28,397 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 16 states and 18 transitions.
[2022-04-08 04:08:28,414 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2022-04-08 04:08:28,415 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions.
[2022-04-08 04:08:28,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2022-04-08 04:08:28,415 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-08 04:08:28,415 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-08 04:08:28,416 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-04-08 04:08:28,416 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-08 04:08:28,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-08 04:08:28,417 INFO L85 PathProgramCache]: Analyzing trace with hash 595464366, now seen corresponding path program 1 times
[2022-04-08 04:08:28,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION
[2022-04-08 04:08:28,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1527191514]
[2022-04-08 04:08:28,907 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult
[2022-04-08 04:08:28,914 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception:
java.lang.AssertionError: free variables [|v_main_#t~post5_4|, |v_main_#t~post6_4|]
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.<init>(UnmodifiableTransFormula.java:97)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:324)
at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.PredicateHelper.normalizeTerm(PredicateHelper.java:201)
at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:254)
at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.<init>(AcceleratedInterpolation.java:190)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAcceleratedInterpolation.construct(IpTcStrategyModuleAcceleratedInterpolation.java:80)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:85)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:82)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:412)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:154)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
[2022-04-08 04:08:28,917 INFO L158 Benchmark]: Toolchain (without parser) took 2326.31ms. Allocated memory was 183.5MB in the beginning and 278.9MB in the end (delta: 95.4MB). Free memory was 125.1MB in the beginning and 248.4MB in the end (delta: -123.3MB). Peak memory consumption was 79.0MB. Max. memory is 8.0GB.
[2022-04-08 04:08:28,918 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 183.5MB. Free memory is still 140.9MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-04-08 04:08:28,918 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.90ms. Allocated memory was 183.5MB in the beginning and 278.9MB in the end (delta: 95.4MB). Free memory was 124.9MB in the beginning and 250.5MB in the end (delta: -125.6MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB.
[2022-04-08 04:08:28,919 INFO L158 Benchmark]: Boogie Preprocessor took 43.06ms. Allocated memory is still 278.9MB. Free memory was 250.5MB in the beginning and 248.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-04-08 04:08:28,919 INFO L158 Benchmark]: RCFGBuilder took 264.88ms. Allocated memory is still 278.9MB. Free memory was 248.9MB in the beginning and 235.8MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB.
[2022-04-08 04:08:28,919 INFO L158 Benchmark]: TraceAbstraction took 1800.32ms. Allocated memory is still 278.9MB. Free memory was 235.3MB in the beginning and 248.4MB in the end (delta: -13.1MB). Peak memory consumption was 94.9MB. Max. memory is 8.0GB.
[2022-04-08 04:08:28,921 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- AssertionsEnabledResult: Assertions are enabled
Assertions are enabled
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.11ms. Allocated memory is still 183.5MB. Free memory is still 140.9MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 212.90ms. Allocated memory was 183.5MB in the beginning and 278.9MB in the end (delta: 95.4MB). Free memory was 124.9MB in the beginning and 250.5MB in the end (delta: -125.6MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 43.06ms. Allocated memory is still 278.9MB. Free memory was 250.5MB in the beginning and 248.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 264.88ms. Allocated memory is still 278.9MB. Free memory was 248.9MB in the beginning and 235.8MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB.
* TraceAbstraction took 1800.32ms. Allocated memory is still 278.9MB. Free memory was 235.3MB in the beginning and 248.4MB in the end (delta: -13.1MB). Peak memory consumption was 94.9MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: AssertionError: free variables [|v_main_#t~post5_4|, |v_main_#t~post6_4|]
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: free variables [|v_main_#t~post5_4|, |v_main_#t~post6_4|]: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.<init>(UnmodifiableTransFormula.java:97)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
[2022-04-08 04:08:28,945 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...