/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/knuth_valuebound10.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 20:51:25,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 20:51:25,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 20:51:25,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 20:51:25,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 20:51:25,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 20:51:25,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 20:51:25,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 20:51:25,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 20:51:25,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 20:51:25,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 20:51:25,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 20:51:25,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 20:51:25,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 20:51:25,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 20:51:25,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 20:51:25,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 20:51:25,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 20:51:25,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 20:51:25,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 20:51:25,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 20:51:25,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 20:51:25,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 20:51:25,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 20:51:25,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 20:51:25,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 20:51:25,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 20:51:25,343 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 20:51:25,343 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 20:51:25,366 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 20:51:25,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 20:51:25,366 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 20:51:25,366 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 20:51:25,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 20:51:25,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 20:51:25,372 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 20:51:25,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 20:51:25,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 20:51:25,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 20:51:25,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 20:51:25,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 20:51:25,373 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 20:51:25,373 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 20:51:25,373 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 20:51:25,373 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 20:51:25,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 20:51:25,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 20:51:25,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 20:51:25,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 20:51:25,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 20:51:25,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:51:25,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 20:51:25,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 20:51:25,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 20:51:25,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 20:51:25,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 20:51:25,375 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 20:51:25,375 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 20:51:25,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 20:51:25,375 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 20:51:25,375 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 20:51:25,376 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 20:51:25,377 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 20:51:25,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 20:51:25,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 20:51:25,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 20:51:25,569 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 20:51:25,576 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 20:51:25,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/knuth_valuebound10.i [2022-01-10 20:51:25,619 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d002635e0/e1940834f0d9408189469555682cade1/FLAG6cffcd68f [2022-01-10 20:51:25,975 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 20:51:25,980 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/knuth_valuebound10.i [2022-01-10 20:51:25,984 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d002635e0/e1940834f0d9408189469555682cade1/FLAG6cffcd68f [2022-01-10 20:51:25,995 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d002635e0/e1940834f0d9408189469555682cade1 [2022-01-10 20:51:25,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 20:51:25,997 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 20:51:25,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 20:51:25,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 20:51:26,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 20:51:26,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:51:25" (1/1) ... [2022-01-10 20:51:26,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b5dd0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:26, skipping insertion in model container [2022-01-10 20:51:26,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:51:25" (1/1) ... [2022-01-10 20:51:26,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 20:51:26,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 20:51:26,138 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/knuth_valuebound10.i[948,961] [2022-01-10 20:51:26,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:51:26,164 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 20:51:26,172 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/knuth_valuebound10.i[948,961] [2022-01-10 20:51:26,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:51:26,197 INFO L208 MainTranslator]: Completed translation [2022-01-10 20:51:26,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:26 WrapperNode [2022-01-10 20:51:26,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 20:51:26,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 20:51:26,198 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 20:51:26,198 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 20:51:26,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:26" (1/1) ... [2022-01-10 20:51:26,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:26" (1/1) ... [2022-01-10 20:51:26,221 INFO L137 Inliner]: procedures = 18, calls = 14, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 98 [2022-01-10 20:51:26,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 20:51:26,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 20:51:26,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 20:51:26,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 20:51:26,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:26" (1/1) ... [2022-01-10 20:51:26,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:26" (1/1) ... [2022-01-10 20:51:26,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:26" (1/1) ... [2022-01-10 20:51:26,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:26" (1/1) ... [2022-01-10 20:51:26,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:26" (1/1) ... [2022-01-10 20:51:26,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:26" (1/1) ... [2022-01-10 20:51:26,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:26" (1/1) ... [2022-01-10 20:51:26,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 20:51:26,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 20:51:26,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 20:51:26,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 20:51:26,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:26" (1/1) ... [2022-01-10 20:51:26,247 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:51:26,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:51:26,268 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) [2022-01-10 20:51:26,272 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 [2022-01-10 20:51:26,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 20:51:26,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 20:51:26,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 20:51:26,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 20:51:26,329 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 20:51:26,330 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 20:51:26,816 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 20:51:26,820 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 20:51:26,821 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 20:51:26,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:51:26 BoogieIcfgContainer [2022-01-10 20:51:26,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 20:51:26,822 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 20:51:26,822 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 20:51:26,825 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 20:51:26,827 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:51:26" (1/1) ... [2022-01-10 20:51:26,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:51:26 BasicIcfg [2022-01-10 20:51:26,935 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 20:51:26,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 20:51:26,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 20:51:26,938 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 20:51:26,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:51:25" (1/4) ... [2022-01-10 20:51:26,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436a4531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:51:26, skipping insertion in model container [2022-01-10 20:51:26,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:26" (2/4) ... [2022-01-10 20:51:26,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436a4531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:51:26, skipping insertion in model container [2022-01-10 20:51:26,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:51:26" (3/4) ... [2022-01-10 20:51:26,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436a4531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:51:26, skipping insertion in model container [2022-01-10 20:51:26,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:51:26" (4/4) ... [2022-01-10 20:51:26,940 INFO L111 eAbstractionObserver]: Analyzing ICFG knuth_valuebound10.iTransformedIcfg [2022-01-10 20:51:26,943 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 20:51:26,943 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-01-10 20:51:26,970 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 20:51:26,978 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 20:51:26,978 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-10 20:51:26,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 30 states have (on average 1.6) internal successors, (48), 34 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:51:26,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-10 20:51:26,993 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:51:26,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:51:26,993 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:51:26,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:51:26,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1338451065, now seen corresponding path program 1 times [2022-01-10 20:51:27,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:51:27,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642159418] [2022-01-10 20:51:27,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:51:27,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:51:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:51:27,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:51:27,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:51:27,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642159418] [2022-01-10 20:51:27,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642159418] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:51:27,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:51:27,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:51:27,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618451944] [2022-01-10 20:51:27,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:51:27,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 20:51:27,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:51:27,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 20:51:27,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 20:51:27,140 INFO L87 Difference]: Start difference. First operand has 35 states, 30 states have (on average 1.6) internal successors, (48), 34 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:51:27,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:51:27,150 INFO L93 Difference]: Finished difference Result 67 states and 92 transitions. [2022-01-10 20:51:27,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 20:51:27,151 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-01-10 20:51:27,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:51:27,156 INFO L225 Difference]: With dead ends: 67 [2022-01-10 20:51:27,156 INFO L226 Difference]: Without dead ends: 31 [2022-01-10 20:51:27,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 20:51:27,160 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:51:27,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:51:27,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-01-10 20:51:27,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-01-10 20:51:27,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 30 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:51:27,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2022-01-10 20:51:27,179 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 13 [2022-01-10 20:51:27,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:51:27,179 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2022-01-10 20:51:27,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:51:27,179 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2022-01-10 20:51:27,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-10 20:51:27,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:51:27,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:51:27,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 20:51:27,180 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:51:27,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:51:27,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1377527555, now seen corresponding path program 1 times [2022-01-10 20:51:27,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:51:27,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55760871] [2022-01-10 20:51:27,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:51:27,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:51:27,213 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:51:27,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1155493265] [2022-01-10 20:51:27,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:51:27,214 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:51:27,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:51:27,215 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) [2022-01-10 20:51:27,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 20:51:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:51:28,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 30 conjunts are in the unsatisfiable core [2022-01-10 20:51:28,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:51:29,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:51:29,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 20:51:29,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:51:29,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55760871] [2022-01-10 20:51:29,635 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 20:51:29,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155493265] [2022-01-10 20:51:29,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155493265] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:51:29,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:51:29,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 20:51:29,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7164447] [2022-01-10 20:51:29,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:51:29,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 20:51:29,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:51:29,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 20:51:29,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-10 20:51:29,638 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:51:32,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 20:51:33,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:51:33,829 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2022-01-10 20:51:33,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 20:51:33,829 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-01-10 20:51:33,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:51:33,830 INFO L225 Difference]: With dead ends: 52 [2022-01-10 20:51:33,830 INFO L226 Difference]: Without dead ends: 50 [2022-01-10 20:51:33,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=90, Invalid=150, Unknown=0, NotChecked=0, Total=240 [2022-01-10 20:51:33,831 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 145 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-01-10 20:51:33,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 42 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-01-10 20:51:33,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-01-10 20:51:33,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 33. [2022-01-10 20:51:33,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 32 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:51:33,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-01-10 20:51:33,838 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 13 [2022-01-10 20:51:33,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:51:33,838 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-01-10 20:51:33,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:51:33,838 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-01-10 20:51:33,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 20:51:33,838 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:51:33,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:51:33,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 20:51:34,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:51:34,039 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:51:34,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:51:34,040 INFO L85 PathProgramCache]: Analyzing trace with hash -954017088, now seen corresponding path program 1 times [2022-01-10 20:51:34,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:51:34,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168081763] [2022-01-10 20:51:34,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:51:34,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:51:34,054 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:51:34,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2129116694] [2022-01-10 20:51:34,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:51:34,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:51:34,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:51:34,055 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) [2022-01-10 20:51:34,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 20:51:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:51:34,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 20:51:34,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:51:34,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:51:34,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 20:51:34,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:51:34,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168081763] [2022-01-10 20:51:34,188 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 20:51:34,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129116694] [2022-01-10 20:51:34,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129116694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:51:34,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:51:34,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 20:51:34,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356320098] [2022-01-10 20:51:34,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:51:34,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 20:51:34,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:51:34,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 20:51:34,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 20:51:34,189 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:51:34,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:51:34,279 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2022-01-10 20:51:34,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 20:51:34,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-01-10 20:51:34,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:51:34,280 INFO L225 Difference]: With dead ends: 50 [2022-01-10 20:51:34,280 INFO L226 Difference]: Without dead ends: 48 [2022-01-10 20:51:34,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 20:51:34,281 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 28 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:51:34,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 70 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:51:34,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-01-10 20:51:34,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 35. [2022-01-10 20:51:34,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 34 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:51:34,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2022-01-10 20:51:34,286 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 15 [2022-01-10 20:51:34,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:51:34,286 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2022-01-10 20:51:34,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:51:34,286 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-01-10 20:51:34,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 20:51:34,287 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:51:34,287 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:51:34,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-10 20:51:34,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-01-10 20:51:34,487 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:51:34,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:51:34,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1982351261, now seen corresponding path program 1 times [2022-01-10 20:51:34,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:51:34,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802128528] [2022-01-10 20:51:34,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:51:34,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:51:34,508 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:51:34,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1439274662] [2022-01-10 20:51:34,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:51:34,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:51:34,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:51:34,519 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) [2022-01-10 20:51:34,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-10 20:51:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:51:34,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 22 conjunts are in the unsatisfiable core [2022-01-10 20:51:34,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:52:00,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:52:00,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 20:52:00,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:52:00,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802128528] [2022-01-10 20:52:00,865 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 20:52:00,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439274662] [2022-01-10 20:52:00,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439274662] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:52:00,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:52:00,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 20:52:00,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923055080] [2022-01-10 20:52:00,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:52:00,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 20:52:00,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:52:00,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 20:52:00,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-01-10 20:52:00,866 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:52:02,961 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 20:52:16,021 WARN L228 SmtUtils]: Spent 8.90s on a formula simplification. DAG size of input: 66 DAG size of output: 59 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-10 20:52:20,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 20:52:23,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 20:52:25,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 20:52:27,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 20:52:28,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:52:28,811 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-01-10 20:52:28,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 20:52:28,811 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-01-10 20:52:28,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:52:28,812 INFO L225 Difference]: With dead ends: 48 [2022-01-10 20:52:28,812 INFO L226 Difference]: Without dead ends: 44 [2022-01-10 20:52:28,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 18.4s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2022-01-10 20:52:28,813 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 144 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 50 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-01-10 20:52:28,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 50 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 89 Invalid, 2 Unknown, 0 Unchecked, 15.2s Time] [2022-01-10 20:52:28,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-01-10 20:52:28,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2022-01-10 20:52:28,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.2) internal successors, (42), 38 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:52:28,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2022-01-10 20:52:28,819 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 17 [2022-01-10 20:52:28,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:52:28,819 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2022-01-10 20:52:28,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:52:28,819 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2022-01-10 20:52:28,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-10 20:52:28,820 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:52:28,820 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:52:28,825 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-10 20:52:29,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:52:29,024 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:52:29,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:52:29,024 INFO L85 PathProgramCache]: Analyzing trace with hash 236875867, now seen corresponding path program 1 times [2022-01-10 20:52:29,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:52:29,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417994938] [2022-01-10 20:52:29,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:52:29,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:52:29,041 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:52:29,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [977205350] [2022-01-10 20:52:29,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:52:29,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:52:29,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:52:29,046 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 20:52:29,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-10 20:52:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:52:33,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 61 conjunts are in the unsatisfiable core [2022-01-10 20:52:33,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:52:45,727 WARN L838 $PredicateComparison]: unable to prove that (and (< |c_ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int| 4294967296) (<= |c_ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int| 10) (<= 0 |c_ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int|) (exists ((|aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~d~0#1Int_1_73| Int)) (let ((.cse7 (* |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~d~0#1Int_1_73| 4294967296))) (let ((.cse6 (+ (- 2) |c_ULTIMATE.start_ULTIMATE.start_main_~d~0#1Int| .cse7))) (let ((.cse5 (mod (+ 4294967292 |c_ULTIMATE.start_ULTIMATE.start_main_~d~0#1Int|) 4294967296)) (.cse4 (mod |c_ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int| .cse6))) (let ((.cse3 (+ |c_ULTIMATE.start_ULTIMATE.start_main_~d~0#1Int| .cse7)) (.cse0 (mod (* .cse4 2) 4294967296)) (.cse2 (mod (+ (mod (* (mod (* 4294967295 (div |c_ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int| .cse6)) 4294967296) 4) 4294967296) (mod (* (div |c_ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int| .cse5) 4) 4294967296)) 4294967296)) (.cse1 (mod |c_ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int| .cse5))) (and (= (mod (+ .cse0 |c_ULTIMATE.start_ULTIMATE.start_main_~d~0#1Int| (mod (* 4294967295 .cse1) 4294967296) .cse2) 4294967296) |c_ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int|) (= (mod (+ 4 .cse2) 4294967296) |c_ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int|) (< 4 .cse3) (not (= .cse4 0)) (= .cse4 |c_ULTIMATE.start_ULTIMATE.start_main_~k~0#1Int|) (<= .cse3 12) (< (mod (+ .cse0 .cse2) 4294967296) .cse1))))))) (< |c_ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 4294967296) (< |c_ULTIMATE.start_ULTIMATE.start_main_~d~0#1Int| 4294967296) (<= 0 |c_ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int|) (<= 0 |c_ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int|) (<= 0 |c_ULTIMATE.start_ULTIMATE.start_main_~d~0#1Int|)) is different from false