java -ea -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline_WitnessPrinter.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/array-examples/standard_two_index_08_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 10:13:47,114 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 10:13:47,116 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 10:13:47,132 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 10:13:47,132 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 10:13:47,134 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 10:13:47,136 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 10:13:47,139 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 10:13:47,141 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 10:13:47,143 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 10:13:47,144 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 10:13:47,144 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 10:13:47,147 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 10:13:47,148 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 10:13:47,149 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 10:13:47,152 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 10:13:47,153 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 10:13:47,163 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 10:13:47,165 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 10:13:47,169 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 10:13:47,170 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 10:13:47,171 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 10:13:47,173 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 10:13:47,173 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 10:13:47,174 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 10:13:47,174 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 10:13:47,176 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 10:13:47,177 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 10:13:47,177 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 10:13:47,178 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 10:13:47,179 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 10:13:47,179 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 10:13:47,180 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 10:13:47,180 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 10:13:47,182 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 10:13:47,183 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 10:13:47,183 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 10:13:47,208 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 10:13:47,208 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 10:13:47,209 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 10:13:47,209 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 10:13:47,213 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 10:13:47,213 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 10:13:47,214 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 10:13:47,214 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 10:13:47,214 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 10:13:47,214 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 10:13:47,214 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 10:13:47,215 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 10:13:47,216 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 10:13:47,216 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 10:13:47,216 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 10:13:47,216 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 10:13:47,217 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 10:13:47,217 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 10:13:47,217 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 10:13:47,217 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 10:13:47,217 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 10:13:47,218 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 10:13:47,219 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 10:13:47,219 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 10:13:47,219 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 10:13:47,220 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 10:13:47,220 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 10:13:47,220 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 10:13:47,220 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 10:13:47,220 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 10:13:47,220 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 10:13:47,221 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 10:13:47,221 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 10:13:47,284 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 10:13:47,299 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 10:13:47,303 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 10:13:47,305 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 10:13:47,306 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 10:13:47,306 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_two_index_08_true-unreach-call.i [2018-11-23 10:13:47,382 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb2caf24e/6323790a3e764a6f8ada4359b523fe36/FLAG6c75ff2f9 [2018-11-23 10:13:47,838 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 10:13:47,838 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_two_index_08_true-unreach-call.i [2018-11-23 10:13:47,845 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb2caf24e/6323790a3e764a6f8ada4359b523fe36/FLAG6c75ff2f9 [2018-11-23 10:13:48,168 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb2caf24e/6323790a3e764a6f8ada4359b523fe36 [2018-11-23 10:13:48,178 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 10:13:48,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 10:13:48,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 10:13:48,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 10:13:48,185 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 10:13:48,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:13:48" (1/1) ... [2018-11-23 10:13:48,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cbf4d36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:13:48, skipping insertion in model container [2018-11-23 10:13:48,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:13:48" (1/1) ... [2018-11-23 10:13:48,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 10:13:48,227 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 10:13:48,486 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 10:13:48,494 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 10:13:48,533 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 10:13:48,555 INFO L195 MainTranslator]: Completed translation [2018-11-23 10:13:48,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:13:48 WrapperNode [2018-11-23 10:13:48,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 10:13:48,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 10:13:48,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 10:13:48,557 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 10:13:48,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:13:48" (1/1) ... [2018-11-23 10:13:48,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:13:48" (1/1) ... [2018-11-23 10:13:48,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 10:13:48,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 10:13:48,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 10:13:48,583 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 10:13:48,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:13:48" (1/1) ... [2018-11-23 10:13:48,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:13:48" (1/1) ... [2018-11-23 10:13:48,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:13:48" (1/1) ... [2018-11-23 10:13:48,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:13:48" (1/1) ... [2018-11-23 10:13:48,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:13:48" (1/1) ... [2018-11-23 10:13:48,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:13:48" (1/1) ... [2018-11-23 10:13:48,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:13:48" (1/1) ... [2018-11-23 10:13:48,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 10:13:48,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 10:13:48,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 10:13:48,617 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 10:13:48,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:13:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 10:13:48,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 10:13:48,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 10:13:48,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 10:13:48,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 10:13:48,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 10:13:48,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 10:13:48,749 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 10:13:48,749 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 10:13:48,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 10:13:48,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 10:13:48,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 10:13:48,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 10:13:49,267 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 10:13:49,267 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2018-11-23 10:13:49,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:13:49 BoogieIcfgContainer [2018-11-23 10:13:49,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 10:13:49,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 10:13:49,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 10:13:49,274 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 10:13:49,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:13:48" (1/3) ... [2018-11-23 10:13:49,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46220eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:13:49, skipping insertion in model container [2018-11-23 10:13:49,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:13:48" (2/3) ... [2018-11-23 10:13:49,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46220eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:13:49, skipping insertion in model container [2018-11-23 10:13:49,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:13:49" (3/3) ... [2018-11-23 10:13:49,278 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_two_index_08_true-unreach-call.i [2018-11-23 10:13:49,286 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 10:13:49,293 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 10:13:49,308 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 10:13:49,342 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 10:13:49,343 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 10:13:49,343 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 10:13:49,343 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 10:13:49,343 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 10:13:49,344 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 10:13:49,344 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 10:13:49,344 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 10:13:49,344 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 10:13:49,363 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-23 10:13:49,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 10:13:49,371 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:13:49,372 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:13:49,375 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:13:49,380 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:13:49,381 INFO L82 PathProgramCache]: Analyzing trace with hash -2029643862, now seen corresponding path program 1 times [2018-11-23 10:13:49,385 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:13:49,385 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:13:49,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:13:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:13:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:13:49,485 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:13:49,609 INFO L256 TraceCheckUtils]: 0: Hoare triple {27#true} call ULTIMATE.init(); {27#true} is VALID [2018-11-23 10:13:49,614 INFO L273 TraceCheckUtils]: 1: Hoare triple {27#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {27#true} is VALID [2018-11-23 10:13:49,616 INFO L273 TraceCheckUtils]: 2: Hoare triple {27#true} assume true; {27#true} is VALID [2018-11-23 10:13:49,617 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {27#true} {27#true} #60#return; {27#true} is VALID [2018-11-23 10:13:49,617 INFO L256 TraceCheckUtils]: 4: Hoare triple {27#true} call #t~ret4 := main(); {27#true} is VALID [2018-11-23 10:13:49,617 INFO L273 TraceCheckUtils]: 5: Hoare triple {27#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(400000bv32);call ~#b~0.base, ~#b~0.offset := #Ultimate.alloc(400000bv32);~i~0 := 0bv32;~j~0 := 0bv32; {27#true} is VALID [2018-11-23 10:13:49,626 INFO L273 TraceCheckUtils]: 6: Hoare triple {27#true} assume !true; {28#false} is VALID [2018-11-23 10:13:49,627 INFO L273 TraceCheckUtils]: 7: Hoare triple {28#false} ~i~0 := 1bv32; {28#false} is VALID [2018-11-23 10:13:49,627 INFO L273 TraceCheckUtils]: 8: Hoare triple {28#false} assume !~bvslt32(~i~0, 100000bv32); {28#false} is VALID [2018-11-23 10:13:49,628 INFO L273 TraceCheckUtils]: 9: Hoare triple {28#false} ~i~0 := 1bv32;~j~0 := 0bv32; {28#false} is VALID [2018-11-23 10:13:49,628 INFO L273 TraceCheckUtils]: 10: Hoare triple {28#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem2 := read~intINTTYPE4(~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);call #t~mem3 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~bvadd32(1bv32, ~bvmul32(8bv32, ~j~0)))), 4bv32); {28#false} is VALID [2018-11-23 10:13:49,628 INFO L256 TraceCheckUtils]: 11: Hoare triple {28#false} call __VERIFIER_assert((if #t~mem2 == #t~mem3 then 1bv32 else 0bv32)); {28#false} is VALID [2018-11-23 10:13:49,629 INFO L273 TraceCheckUtils]: 12: Hoare triple {28#false} ~cond := #in~cond; {28#false} is VALID [2018-11-23 10:13:49,629 INFO L273 TraceCheckUtils]: 13: Hoare triple {28#false} assume 0bv32 == ~cond; {28#false} is VALID [2018-11-23 10:13:49,629 INFO L273 TraceCheckUtils]: 14: Hoare triple {28#false} assume !false; {28#false} is VALID [2018-11-23 10:13:49,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:13:49,633 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:13:49,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:13:49,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 10:13:49,645 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-11-23 10:13:49,647 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:13:49,650 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-23 10:13:49,751 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:13:49,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 10:13:49,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 10:13:49,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 10:13:49,765 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2018-11-23 10:13:50,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:13:50,050 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2018-11-23 10:13:50,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 10:13:50,051 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-11-23 10:13:50,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:13:50,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 10:13:50,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 52 transitions. [2018-11-23 10:13:50,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 10:13:50,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 52 transitions. [2018-11-23 10:13:50,068 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 52 transitions. [2018-11-23 10:13:50,270 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 52 edges. 52 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:13:50,285 INFO L225 Difference]: With dead ends: 41 [2018-11-23 10:13:50,289 INFO L226 Difference]: Without dead ends: 19 [2018-11-23 10:13:50,292 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 10:13:50,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-23 10:13:50,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-23 10:13:50,356 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:13:50,356 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second operand 19 states. [2018-11-23 10:13:50,357 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 19 states. [2018-11-23 10:13:50,357 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 19 states. [2018-11-23 10:13:50,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:13:50,361 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2018-11-23 10:13:50,361 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-23 10:13:50,362 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:13:50,362 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:13:50,362 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 19 states. [2018-11-23 10:13:50,363 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 19 states. [2018-11-23 10:13:50,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:13:50,366 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2018-11-23 10:13:50,367 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-23 10:13:50,367 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:13:50,368 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:13:50,368 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:13:50,368 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:13:50,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-23 10:13:50,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-23 10:13:50,373 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 15 [2018-11-23 10:13:50,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:13:50,373 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-23 10:13:50,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 10:13:50,374 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-23 10:13:50,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 10:13:50,375 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:13:50,375 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:13:50,375 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:13:50,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:13:50,376 INFO L82 PathProgramCache]: Analyzing trace with hash 905206694, now seen corresponding path program 1 times [2018-11-23 10:13:50,376 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:13:50,377 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:13:50,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:13:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:13:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:13:50,446 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:13:50,520 INFO L256 TraceCheckUtils]: 0: Hoare triple {193#true} call ULTIMATE.init(); {193#true} is VALID [2018-11-23 10:13:50,521 INFO L273 TraceCheckUtils]: 1: Hoare triple {193#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {193#true} is VALID [2018-11-23 10:13:50,521 INFO L273 TraceCheckUtils]: 2: Hoare triple {193#true} assume true; {193#true} is VALID [2018-11-23 10:13:50,521 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {193#true} {193#true} #60#return; {193#true} is VALID [2018-11-23 10:13:50,521 INFO L256 TraceCheckUtils]: 4: Hoare triple {193#true} call #t~ret4 := main(); {193#true} is VALID [2018-11-23 10:13:50,526 INFO L273 TraceCheckUtils]: 5: Hoare triple {193#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(400000bv32);call ~#b~0.base, ~#b~0.offset := #Ultimate.alloc(400000bv32);~i~0 := 0bv32;~j~0 := 0bv32; {213#(= main_~i~0 (_ bv0 32))} is VALID [2018-11-23 10:13:50,526 INFO L273 TraceCheckUtils]: 6: Hoare triple {213#(= main_~i~0 (_ bv0 32))} assume !~bvslt32(~i~0, 100000bv32); {194#false} is VALID [2018-11-23 10:13:50,527 INFO L273 TraceCheckUtils]: 7: Hoare triple {194#false} ~i~0 := 1bv32; {194#false} is VALID [2018-11-23 10:13:50,527 INFO L273 TraceCheckUtils]: 8: Hoare triple {194#false} assume !~bvslt32(~i~0, 100000bv32); {194#false} is VALID [2018-11-23 10:13:50,528 INFO L273 TraceCheckUtils]: 9: Hoare triple {194#false} ~i~0 := 1bv32;~j~0 := 0bv32; {194#false} is VALID [2018-11-23 10:13:50,528 INFO L273 TraceCheckUtils]: 10: Hoare triple {194#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem2 := read~intINTTYPE4(~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);call #t~mem3 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~bvadd32(1bv32, ~bvmul32(8bv32, ~j~0)))), 4bv32); {194#false} is VALID [2018-11-23 10:13:50,528 INFO L256 TraceCheckUtils]: 11: Hoare triple {194#false} call __VERIFIER_assert((if #t~mem2 == #t~mem3 then 1bv32 else 0bv32)); {194#false} is VALID [2018-11-23 10:13:50,529 INFO L273 TraceCheckUtils]: 12: Hoare triple {194#false} ~cond := #in~cond; {194#false} is VALID [2018-11-23 10:13:50,529 INFO L273 TraceCheckUtils]: 13: Hoare triple {194#false} assume 0bv32 == ~cond; {194#false} is VALID [2018-11-23 10:13:50,529 INFO L273 TraceCheckUtils]: 14: Hoare triple {194#false} assume !false; {194#false} is VALID [2018-11-23 10:13:50,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:13:50,531 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:13:50,533 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:13:50,534 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 10:13:50,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-23 10:13:50,536 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:13:50,536 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-23 10:13:50,591 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:13:50,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 10:13:50,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 10:13:50,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:13:50,592 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-11-23 10:13:50,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:13:50,732 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-11-23 10:13:50,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 10:13:50,732 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-23 10:13:50,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:13:50,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 10:13:50,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2018-11-23 10:13:50,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 10:13:50,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2018-11-23 10:13:50,738 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 36 transitions. [2018-11-23 10:13:51,180 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:13:51,182 INFO L225 Difference]: With dead ends: 32 [2018-11-23 10:13:51,182 INFO L226 Difference]: Without dead ends: 20 [2018-11-23 10:13:51,184 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:13:51,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-23 10:13:51,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-23 10:13:51,203 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:13:51,203 INFO L82 GeneralOperation]: Start isEquivalent. First operand 20 states. Second operand 20 states. [2018-11-23 10:13:51,203 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 20 states. [2018-11-23 10:13:51,204 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 20 states. [2018-11-23 10:13:51,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:13:51,206 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-11-23 10:13:51,206 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-23 10:13:51,207 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:13:51,207 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:13:51,207 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 20 states. [2018-11-23 10:13:51,207 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 20 states. [2018-11-23 10:13:51,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:13:51,210 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-11-23 10:13:51,210 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-23 10:13:51,210 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:13:51,211 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:13:51,211 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:13:51,211 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:13:51,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-23 10:13:51,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-23 10:13:51,213 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 15 [2018-11-23 10:13:51,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:13:51,214 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-23 10:13:51,214 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 10:13:51,214 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-23 10:13:51,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-23 10:13:51,215 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:13:51,215 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:13:51,216 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:13:51,216 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:13:51,216 INFO L82 PathProgramCache]: Analyzing trace with hash -764882998, now seen corresponding path program 1 times [2018-11-23 10:13:51,217 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:13:51,217 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:13:51,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:13:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:13:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:13:51,294 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:13:51,384 INFO L256 TraceCheckUtils]: 0: Hoare triple {356#true} call ULTIMATE.init(); {356#true} is VALID [2018-11-23 10:13:51,385 INFO L273 TraceCheckUtils]: 1: Hoare triple {356#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {356#true} is VALID [2018-11-23 10:13:51,385 INFO L273 TraceCheckUtils]: 2: Hoare triple {356#true} assume true; {356#true} is VALID [2018-11-23 10:13:51,386 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {356#true} {356#true} #60#return; {356#true} is VALID [2018-11-23 10:13:51,386 INFO L256 TraceCheckUtils]: 4: Hoare triple {356#true} call #t~ret4 := main(); {356#true} is VALID [2018-11-23 10:13:51,391 INFO L273 TraceCheckUtils]: 5: Hoare triple {356#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(400000bv32);call ~#b~0.base, ~#b~0.offset := #Ultimate.alloc(400000bv32);~i~0 := 0bv32;~j~0 := 0bv32; {376#(= main_~i~0 (_ bv0 32))} is VALID [2018-11-23 10:13:51,392 INFO L273 TraceCheckUtils]: 6: Hoare triple {376#(= main_~i~0 (_ bv0 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {380#(= (bvadd main_~i~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-23 10:13:51,392 INFO L273 TraceCheckUtils]: 7: Hoare triple {380#(= (bvadd main_~i~0 (_ bv4294967295 32)) (_ bv0 32))} assume !~bvslt32(~i~0, 100000bv32); {357#false} is VALID [2018-11-23 10:13:51,393 INFO L273 TraceCheckUtils]: 8: Hoare triple {357#false} ~i~0 := 1bv32; {357#false} is VALID [2018-11-23 10:13:51,393 INFO L273 TraceCheckUtils]: 9: Hoare triple {357#false} assume !~bvslt32(~i~0, 100000bv32); {357#false} is VALID [2018-11-23 10:13:51,393 INFO L273 TraceCheckUtils]: 10: Hoare triple {357#false} ~i~0 := 1bv32;~j~0 := 0bv32; {357#false} is VALID [2018-11-23 10:13:51,393 INFO L273 TraceCheckUtils]: 11: Hoare triple {357#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem2 := read~intINTTYPE4(~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);call #t~mem3 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~bvadd32(1bv32, ~bvmul32(8bv32, ~j~0)))), 4bv32); {357#false} is VALID [2018-11-23 10:13:51,394 INFO L256 TraceCheckUtils]: 12: Hoare triple {357#false} call __VERIFIER_assert((if #t~mem2 == #t~mem3 then 1bv32 else 0bv32)); {357#false} is VALID [2018-11-23 10:13:51,394 INFO L273 TraceCheckUtils]: 13: Hoare triple {357#false} ~cond := #in~cond; {357#false} is VALID [2018-11-23 10:13:51,394 INFO L273 TraceCheckUtils]: 14: Hoare triple {357#false} assume 0bv32 == ~cond; {357#false} is VALID [2018-11-23 10:13:51,395 INFO L273 TraceCheckUtils]: 15: Hoare triple {357#false} assume !false; {357#false} is VALID [2018-11-23 10:13:51,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:13:51,397 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 10:13:51,546 INFO L273 TraceCheckUtils]: 15: Hoare triple {357#false} assume !false; {357#false} is VALID [2018-11-23 10:13:51,546 INFO L273 TraceCheckUtils]: 14: Hoare triple {357#false} assume 0bv32 == ~cond; {357#false} is VALID [2018-11-23 10:13:51,547 INFO L273 TraceCheckUtils]: 13: Hoare triple {357#false} ~cond := #in~cond; {357#false} is VALID [2018-11-23 10:13:51,547 INFO L256 TraceCheckUtils]: 12: Hoare triple {357#false} call __VERIFIER_assert((if #t~mem2 == #t~mem3 then 1bv32 else 0bv32)); {357#false} is VALID [2018-11-23 10:13:51,547 INFO L273 TraceCheckUtils]: 11: Hoare triple {357#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem2 := read~intINTTYPE4(~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);call #t~mem3 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~bvadd32(1bv32, ~bvmul32(8bv32, ~j~0)))), 4bv32); {357#false} is VALID [2018-11-23 10:13:51,548 INFO L273 TraceCheckUtils]: 10: Hoare triple {357#false} ~i~0 := 1bv32;~j~0 := 0bv32; {357#false} is VALID [2018-11-23 10:13:51,548 INFO L273 TraceCheckUtils]: 9: Hoare triple {357#false} assume !~bvslt32(~i~0, 100000bv32); {357#false} is VALID [2018-11-23 10:13:51,548 INFO L273 TraceCheckUtils]: 8: Hoare triple {357#false} ~i~0 := 1bv32; {357#false} is VALID [2018-11-23 10:13:51,551 INFO L273 TraceCheckUtils]: 7: Hoare triple {432#(bvslt main_~i~0 (_ bv100000 32))} assume !~bvslt32(~i~0, 100000bv32); {357#false} is VALID [2018-11-23 10:13:51,553 INFO L273 TraceCheckUtils]: 6: Hoare triple {436#(bvslt (bvadd main_~i~0 (_ bv1 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {432#(bvslt main_~i~0 (_ bv100000 32))} is VALID [2018-11-23 10:13:51,570 INFO L273 TraceCheckUtils]: 5: Hoare triple {356#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(400000bv32);call ~#b~0.base, ~#b~0.offset := #Ultimate.alloc(400000bv32);~i~0 := 0bv32;~j~0 := 0bv32; {436#(bvslt (bvadd main_~i~0 (_ bv1 32)) (_ bv100000 32))} is VALID [2018-11-23 10:13:51,570 INFO L256 TraceCheckUtils]: 4: Hoare triple {356#true} call #t~ret4 := main(); {356#true} is VALID [2018-11-23 10:13:51,571 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {356#true} {356#true} #60#return; {356#true} is VALID [2018-11-23 10:13:51,571 INFO L273 TraceCheckUtils]: 2: Hoare triple {356#true} assume true; {356#true} is VALID [2018-11-23 10:13:51,571 INFO L273 TraceCheckUtils]: 1: Hoare triple {356#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {356#true} is VALID [2018-11-23 10:13:51,572 INFO L256 TraceCheckUtils]: 0: Hoare triple {356#true} call ULTIMATE.init(); {356#true} is VALID [2018-11-23 10:13:51,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:13:51,577 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 10:13:51,578 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-11-23 10:13:51,578 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-11-23 10:13:51,579 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:13:51,579 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2018-11-23 10:13:51,659 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:13:51,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 10:13:51,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 10:13:51,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-23 10:13:51,661 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 6 states. [2018-11-23 10:13:52,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:13:52,266 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions. [2018-11-23 10:13:52,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 10:13:52,266 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-11-23 10:13:52,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:13:52,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 10:13:52,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 53 transitions. [2018-11-23 10:13:52,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 10:13:52,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 53 transitions. [2018-11-23 10:13:52,275 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 53 transitions. [2018-11-23 10:13:52,438 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:13:52,440 INFO L225 Difference]: With dead ends: 43 [2018-11-23 10:13:52,440 INFO L226 Difference]: Without dead ends: 31 [2018-11-23 10:13:52,441 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-11-23 10:13:52,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-23 10:13:52,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 25. [2018-11-23 10:13:52,470 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:13:52,471 INFO L82 GeneralOperation]: Start isEquivalent. First operand 31 states. Second operand 25 states. [2018-11-23 10:13:52,471 INFO L74 IsIncluded]: Start isIncluded. First operand 31 states. Second operand 25 states. [2018-11-23 10:13:52,471 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 25 states. [2018-11-23 10:13:52,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:13:52,476 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2018-11-23 10:13:52,476 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2018-11-23 10:13:52,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:13:52,477 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:13:52,478 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand 31 states. [2018-11-23 10:13:52,478 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 31 states. [2018-11-23 10:13:52,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:13:52,481 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2018-11-23 10:13:52,481 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2018-11-23 10:13:52,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:13:52,482 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:13:52,482 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:13:52,483 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:13:52,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-23 10:13:52,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2018-11-23 10:13:52,485 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 16 [2018-11-23 10:13:52,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:13:52,485 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2018-11-23 10:13:52,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 10:13:52,485 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-11-23 10:13:52,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 10:13:52,486 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:13:52,486 INFO L402 BasicCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:13:52,487 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:13:52,487 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:13:52,487 INFO L82 PathProgramCache]: Analyzing trace with hash -897319674, now seen corresponding path program 1 times [2018-11-23 10:13:52,488 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:13:52,488 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:13:52,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:13:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:13:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:13:52,572 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:13:52,698 INFO L256 TraceCheckUtils]: 0: Hoare triple {627#true} call ULTIMATE.init(); {627#true} is VALID [2018-11-23 10:13:52,698 INFO L273 TraceCheckUtils]: 1: Hoare triple {627#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {627#true} is VALID [2018-11-23 10:13:52,699 INFO L273 TraceCheckUtils]: 2: Hoare triple {627#true} assume true; {627#true} is VALID [2018-11-23 10:13:52,699 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {627#true} {627#true} #60#return; {627#true} is VALID [2018-11-23 10:13:52,700 INFO L256 TraceCheckUtils]: 4: Hoare triple {627#true} call #t~ret4 := main(); {627#true} is VALID [2018-11-23 10:13:52,701 INFO L273 TraceCheckUtils]: 5: Hoare triple {627#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(400000bv32);call ~#b~0.base, ~#b~0.offset := #Ultimate.alloc(400000bv32);~i~0 := 0bv32;~j~0 := 0bv32; {647#(= main_~i~0 (_ bv0 32))} is VALID [2018-11-23 10:13:52,701 INFO L273 TraceCheckUtils]: 6: Hoare triple {647#(= main_~i~0 (_ bv0 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {651#(= (bvadd main_~i~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-23 10:13:52,702 INFO L273 TraceCheckUtils]: 7: Hoare triple {651#(= (bvadd main_~i~0 (_ bv4294967295 32)) (_ bv0 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {655#(= (bvadd main_~i~0 (_ bv4294967294 32)) (_ bv0 32))} is VALID [2018-11-23 10:13:52,703 INFO L273 TraceCheckUtils]: 8: Hoare triple {655#(= (bvadd main_~i~0 (_ bv4294967294 32)) (_ bv0 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {659#(= (bvadd main_~i~0 (_ bv4294967293 32)) (_ bv0 32))} is VALID [2018-11-23 10:13:52,704 INFO L273 TraceCheckUtils]: 9: Hoare triple {659#(= (bvadd main_~i~0 (_ bv4294967293 32)) (_ bv0 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {663#(= (bvadd main_~i~0 (_ bv4294967292 32)) (_ bv0 32))} is VALID [2018-11-23 10:13:52,704 INFO L273 TraceCheckUtils]: 10: Hoare triple {663#(= (bvadd main_~i~0 (_ bv4294967292 32)) (_ bv0 32))} assume !~bvslt32(~i~0, 100000bv32); {628#false} is VALID [2018-11-23 10:13:52,705 INFO L273 TraceCheckUtils]: 11: Hoare triple {628#false} ~i~0 := 1bv32; {628#false} is VALID [2018-11-23 10:13:52,705 INFO L273 TraceCheckUtils]: 12: Hoare triple {628#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {628#false} is VALID [2018-11-23 10:13:52,706 INFO L273 TraceCheckUtils]: 13: Hoare triple {628#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {628#false} is VALID [2018-11-23 10:13:52,706 INFO L273 TraceCheckUtils]: 14: Hoare triple {628#false} assume !~bvslt32(~i~0, 100000bv32); {628#false} is VALID [2018-11-23 10:13:52,707 INFO L273 TraceCheckUtils]: 15: Hoare triple {628#false} ~i~0 := 1bv32;~j~0 := 0bv32; {628#false} is VALID [2018-11-23 10:13:52,707 INFO L273 TraceCheckUtils]: 16: Hoare triple {628#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem2 := read~intINTTYPE4(~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);call #t~mem3 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~bvadd32(1bv32, ~bvmul32(8bv32, ~j~0)))), 4bv32); {628#false} is VALID [2018-11-23 10:13:52,707 INFO L256 TraceCheckUtils]: 17: Hoare triple {628#false} call __VERIFIER_assert((if #t~mem2 == #t~mem3 then 1bv32 else 0bv32)); {628#false} is VALID [2018-11-23 10:13:52,708 INFO L273 TraceCheckUtils]: 18: Hoare triple {628#false} ~cond := #in~cond; {628#false} is VALID [2018-11-23 10:13:52,708 INFO L273 TraceCheckUtils]: 19: Hoare triple {628#false} assume 0bv32 == ~cond; {628#false} is VALID [2018-11-23 10:13:52,709 INFO L273 TraceCheckUtils]: 20: Hoare triple {628#false} assume !false; {628#false} is VALID [2018-11-23 10:13:52,710 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 10:13:52,710 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 10:13:52,900 INFO L273 TraceCheckUtils]: 20: Hoare triple {628#false} assume !false; {628#false} is VALID [2018-11-23 10:13:52,901 INFO L273 TraceCheckUtils]: 19: Hoare triple {628#false} assume 0bv32 == ~cond; {628#false} is VALID [2018-11-23 10:13:52,902 INFO L273 TraceCheckUtils]: 18: Hoare triple {628#false} ~cond := #in~cond; {628#false} is VALID [2018-11-23 10:13:52,902 INFO L256 TraceCheckUtils]: 17: Hoare triple {628#false} call __VERIFIER_assert((if #t~mem2 == #t~mem3 then 1bv32 else 0bv32)); {628#false} is VALID [2018-11-23 10:13:52,902 INFO L273 TraceCheckUtils]: 16: Hoare triple {628#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem2 := read~intINTTYPE4(~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);call #t~mem3 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~bvadd32(1bv32, ~bvmul32(8bv32, ~j~0)))), 4bv32); {628#false} is VALID [2018-11-23 10:13:52,903 INFO L273 TraceCheckUtils]: 15: Hoare triple {628#false} ~i~0 := 1bv32;~j~0 := 0bv32; {628#false} is VALID [2018-11-23 10:13:52,903 INFO L273 TraceCheckUtils]: 14: Hoare triple {628#false} assume !~bvslt32(~i~0, 100000bv32); {628#false} is VALID [2018-11-23 10:13:52,903 INFO L273 TraceCheckUtils]: 13: Hoare triple {628#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {628#false} is VALID [2018-11-23 10:13:52,904 INFO L273 TraceCheckUtils]: 12: Hoare triple {628#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {628#false} is VALID [2018-11-23 10:13:52,904 INFO L273 TraceCheckUtils]: 11: Hoare triple {628#false} ~i~0 := 1bv32; {628#false} is VALID [2018-11-23 10:13:52,905 INFO L273 TraceCheckUtils]: 10: Hoare triple {727#(bvslt main_~i~0 (_ bv100000 32))} assume !~bvslt32(~i~0, 100000bv32); {628#false} is VALID [2018-11-23 10:13:52,907 INFO L273 TraceCheckUtils]: 9: Hoare triple {731#(bvslt (bvadd main_~i~0 (_ bv1 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {727#(bvslt main_~i~0 (_ bv100000 32))} is VALID [2018-11-23 10:13:52,912 INFO L273 TraceCheckUtils]: 8: Hoare triple {735#(bvslt (bvadd main_~i~0 (_ bv2 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {731#(bvslt (bvadd main_~i~0 (_ bv1 32)) (_ bv100000 32))} is VALID [2018-11-23 10:13:52,916 INFO L273 TraceCheckUtils]: 7: Hoare triple {739#(bvslt (bvadd main_~i~0 (_ bv3 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {735#(bvslt (bvadd main_~i~0 (_ bv2 32)) (_ bv100000 32))} is VALID [2018-11-23 10:13:52,921 INFO L273 TraceCheckUtils]: 6: Hoare triple {743#(bvslt (bvadd main_~i~0 (_ bv4 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {739#(bvslt (bvadd main_~i~0 (_ bv3 32)) (_ bv100000 32))} is VALID [2018-11-23 10:13:52,922 INFO L273 TraceCheckUtils]: 5: Hoare triple {627#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(400000bv32);call ~#b~0.base, ~#b~0.offset := #Ultimate.alloc(400000bv32);~i~0 := 0bv32;~j~0 := 0bv32; {743#(bvslt (bvadd main_~i~0 (_ bv4 32)) (_ bv100000 32))} is VALID [2018-11-23 10:13:52,923 INFO L256 TraceCheckUtils]: 4: Hoare triple {627#true} call #t~ret4 := main(); {627#true} is VALID [2018-11-23 10:13:52,923 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {627#true} {627#true} #60#return; {627#true} is VALID [2018-11-23 10:13:52,923 INFO L273 TraceCheckUtils]: 2: Hoare triple {627#true} assume true; {627#true} is VALID [2018-11-23 10:13:52,924 INFO L273 TraceCheckUtils]: 1: Hoare triple {627#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {627#true} is VALID [2018-11-23 10:13:52,924 INFO L256 TraceCheckUtils]: 0: Hoare triple {627#true} call ULTIMATE.init(); {627#true} is VALID [2018-11-23 10:13:52,925 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 10:13:52,927 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 10:13:52,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-11-23 10:13:52,928 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2018-11-23 10:13:52,929 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:13:52,929 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states. [2018-11-23 10:13:52,989 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:13:52,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-23 10:13:52,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-23 10:13:52,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-11-23 10:13:52,990 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 12 states. [2018-11-23 10:13:54,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:13:54,449 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions. [2018-11-23 10:13:54,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 10:13:54,449 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2018-11-23 10:13:54,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:13:54,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-23 10:13:54,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 60 transitions. [2018-11-23 10:13:54,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-23 10:13:54,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 60 transitions. [2018-11-23 10:13:54,457 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 60 transitions. [2018-11-23 10:13:54,571 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 60 edges. 60 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:13:54,573 INFO L225 Difference]: With dead ends: 51 [2018-11-23 10:13:54,573 INFO L226 Difference]: Without dead ends: 37 [2018-11-23 10:13:54,574 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2018-11-23 10:13:54,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-23 10:13:54,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 31. [2018-11-23 10:13:54,601 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:13:54,601 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand 31 states. [2018-11-23 10:13:54,601 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 31 states. [2018-11-23 10:13:54,602 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 31 states. [2018-11-23 10:13:54,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:13:54,605 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2018-11-23 10:13:54,605 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-11-23 10:13:54,606 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:13:54,606 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:13:54,607 INFO L74 IsIncluded]: Start isIncluded. First operand 31 states. Second operand 37 states. [2018-11-23 10:13:54,607 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 37 states. [2018-11-23 10:13:54,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:13:54,610 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2018-11-23 10:13:54,611 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-11-23 10:13:54,611 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:13:54,612 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:13:54,612 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:13:54,612 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:13:54,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-23 10:13:54,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2018-11-23 10:13:54,614 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 21 [2018-11-23 10:13:54,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:13:54,615 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2018-11-23 10:13:54,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-23 10:13:54,615 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2018-11-23 10:13:54,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 10:13:54,616 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:13:54,616 INFO L402 BasicCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:13:54,617 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:13:54,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:13:54,617 INFO L82 PathProgramCache]: Analyzing trace with hash -3011962, now seen corresponding path program 2 times [2018-11-23 10:13:54,618 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:13:54,618 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:13:54,643 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-23 10:13:54,719 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 10:13:54,719 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 10:13:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:13:54,741 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:13:54,823 INFO L256 TraceCheckUtils]: 0: Hoare triple {980#true} call ULTIMATE.init(); {980#true} is VALID [2018-11-23 10:13:54,823 INFO L273 TraceCheckUtils]: 1: Hoare triple {980#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {980#true} is VALID [2018-11-23 10:13:54,824 INFO L273 TraceCheckUtils]: 2: Hoare triple {980#true} assume true; {980#true} is VALID [2018-11-23 10:13:54,824 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {980#true} {980#true} #60#return; {980#true} is VALID [2018-11-23 10:13:54,825 INFO L256 TraceCheckUtils]: 4: Hoare triple {980#true} call #t~ret4 := main(); {980#true} is VALID [2018-11-23 10:13:54,825 INFO L273 TraceCheckUtils]: 5: Hoare triple {980#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(400000bv32);call ~#b~0.base, ~#b~0.offset := #Ultimate.alloc(400000bv32);~i~0 := 0bv32;~j~0 := 0bv32; {980#true} is VALID [2018-11-23 10:13:54,825 INFO L273 TraceCheckUtils]: 6: Hoare triple {980#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {980#true} is VALID [2018-11-23 10:13:54,826 INFO L273 TraceCheckUtils]: 7: Hoare triple {980#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {980#true} is VALID [2018-11-23 10:13:54,826 INFO L273 TraceCheckUtils]: 8: Hoare triple {980#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {980#true} is VALID [2018-11-23 10:13:54,826 INFO L273 TraceCheckUtils]: 9: Hoare triple {980#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {980#true} is VALID [2018-11-23 10:13:54,827 INFO L273 TraceCheckUtils]: 10: Hoare triple {980#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {980#true} is VALID [2018-11-23 10:13:54,827 INFO L273 TraceCheckUtils]: 11: Hoare triple {980#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {980#true} is VALID [2018-11-23 10:13:54,827 INFO L273 TraceCheckUtils]: 12: Hoare triple {980#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {980#true} is VALID [2018-11-23 10:13:54,828 INFO L273 TraceCheckUtils]: 13: Hoare triple {980#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {980#true} is VALID [2018-11-23 10:13:54,828 INFO L273 TraceCheckUtils]: 14: Hoare triple {980#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {980#true} is VALID [2018-11-23 10:13:54,828 INFO L273 TraceCheckUtils]: 15: Hoare triple {980#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {980#true} is VALID [2018-11-23 10:13:54,828 INFO L273 TraceCheckUtils]: 16: Hoare triple {980#true} assume !~bvslt32(~i~0, 100000bv32); {980#true} is VALID [2018-11-23 10:13:54,830 INFO L273 TraceCheckUtils]: 17: Hoare triple {980#true} ~i~0 := 1bv32; {1036#(= (bvadd main_~i~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-23 10:13:54,833 INFO L273 TraceCheckUtils]: 18: Hoare triple {1036#(= (bvadd main_~i~0 (_ bv4294967295 32)) (_ bv0 32))} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {1040#(= (_ bv9 32) main_~i~0)} is VALID [2018-11-23 10:13:54,836 INFO L273 TraceCheckUtils]: 19: Hoare triple {1040#(= (_ bv9 32) main_~i~0)} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {1044#(= (bvadd main_~i~0 (_ bv4294967279 32)) (_ bv0 32))} is VALID [2018-11-23 10:13:54,838 INFO L273 TraceCheckUtils]: 20: Hoare triple {1044#(= (bvadd main_~i~0 (_ bv4294967279 32)) (_ bv0 32))} assume !~bvslt32(~i~0, 100000bv32); {981#false} is VALID [2018-11-23 10:13:54,838 INFO L273 TraceCheckUtils]: 21: Hoare triple {981#false} ~i~0 := 1bv32;~j~0 := 0bv32; {981#false} is VALID [2018-11-23 10:13:54,839 INFO L273 TraceCheckUtils]: 22: Hoare triple {981#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem2 := read~intINTTYPE4(~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);call #t~mem3 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~bvadd32(1bv32, ~bvmul32(8bv32, ~j~0)))), 4bv32); {981#false} is VALID [2018-11-23 10:13:54,839 INFO L256 TraceCheckUtils]: 23: Hoare triple {981#false} call __VERIFIER_assert((if #t~mem2 == #t~mem3 then 1bv32 else 0bv32)); {981#false} is VALID [2018-11-23 10:13:54,840 INFO L273 TraceCheckUtils]: 24: Hoare triple {981#false} ~cond := #in~cond; {981#false} is VALID [2018-11-23 10:13:54,840 INFO L273 TraceCheckUtils]: 25: Hoare triple {981#false} assume 0bv32 == ~cond; {981#false} is VALID [2018-11-23 10:13:54,841 INFO L273 TraceCheckUtils]: 26: Hoare triple {981#false} assume !false; {981#false} is VALID [2018-11-23 10:13:54,842 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-11-23 10:13:54,843 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 10:13:54,980 INFO L273 TraceCheckUtils]: 26: Hoare triple {981#false} assume !false; {981#false} is VALID [2018-11-23 10:13:54,980 INFO L273 TraceCheckUtils]: 25: Hoare triple {981#false} assume 0bv32 == ~cond; {981#false} is VALID [2018-11-23 10:13:54,981 INFO L273 TraceCheckUtils]: 24: Hoare triple {981#false} ~cond := #in~cond; {981#false} is VALID [2018-11-23 10:13:54,981 INFO L256 TraceCheckUtils]: 23: Hoare triple {981#false} call __VERIFIER_assert((if #t~mem2 == #t~mem3 then 1bv32 else 0bv32)); {981#false} is VALID [2018-11-23 10:13:54,981 INFO L273 TraceCheckUtils]: 22: Hoare triple {981#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem2 := read~intINTTYPE4(~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);call #t~mem3 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~bvadd32(1bv32, ~bvmul32(8bv32, ~j~0)))), 4bv32); {981#false} is VALID [2018-11-23 10:13:54,981 INFO L273 TraceCheckUtils]: 21: Hoare triple {981#false} ~i~0 := 1bv32;~j~0 := 0bv32; {981#false} is VALID [2018-11-23 10:13:54,986 INFO L273 TraceCheckUtils]: 20: Hoare triple {1084#(bvslt main_~i~0 (_ bv100000 32))} assume !~bvslt32(~i~0, 100000bv32); {981#false} is VALID [2018-11-23 10:13:54,988 INFO L273 TraceCheckUtils]: 19: Hoare triple {1088#(bvslt (bvadd main_~i~0 (_ bv8 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {1084#(bvslt main_~i~0 (_ bv100000 32))} is VALID [2018-11-23 10:13:54,992 INFO L273 TraceCheckUtils]: 18: Hoare triple {1092#(bvslt (bvadd main_~i~0 (_ bv16 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {1088#(bvslt (bvadd main_~i~0 (_ bv8 32)) (_ bv100000 32))} is VALID [2018-11-23 10:13:54,994 INFO L273 TraceCheckUtils]: 17: Hoare triple {980#true} ~i~0 := 1bv32; {1092#(bvslt (bvadd main_~i~0 (_ bv16 32)) (_ bv100000 32))} is VALID [2018-11-23 10:13:54,994 INFO L273 TraceCheckUtils]: 16: Hoare triple {980#true} assume !~bvslt32(~i~0, 100000bv32); {980#true} is VALID [2018-11-23 10:13:54,994 INFO L273 TraceCheckUtils]: 15: Hoare triple {980#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {980#true} is VALID [2018-11-23 10:13:54,994 INFO L273 TraceCheckUtils]: 14: Hoare triple {980#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {980#true} is VALID [2018-11-23 10:13:54,995 INFO L273 TraceCheckUtils]: 13: Hoare triple {980#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {980#true} is VALID [2018-11-23 10:13:54,995 INFO L273 TraceCheckUtils]: 12: Hoare triple {980#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {980#true} is VALID [2018-11-23 10:13:54,995 INFO L273 TraceCheckUtils]: 11: Hoare triple {980#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {980#true} is VALID [2018-11-23 10:13:54,995 INFO L273 TraceCheckUtils]: 10: Hoare triple {980#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {980#true} is VALID [2018-11-23 10:13:54,995 INFO L273 TraceCheckUtils]: 9: Hoare triple {980#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {980#true} is VALID [2018-11-23 10:13:54,996 INFO L273 TraceCheckUtils]: 8: Hoare triple {980#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {980#true} is VALID [2018-11-23 10:13:54,996 INFO L273 TraceCheckUtils]: 7: Hoare triple {980#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {980#true} is VALID [2018-11-23 10:13:54,996 INFO L273 TraceCheckUtils]: 6: Hoare triple {980#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {980#true} is VALID [2018-11-23 10:13:54,996 INFO L273 TraceCheckUtils]: 5: Hoare triple {980#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(400000bv32);call ~#b~0.base, ~#b~0.offset := #Ultimate.alloc(400000bv32);~i~0 := 0bv32;~j~0 := 0bv32; {980#true} is VALID [2018-11-23 10:13:54,996 INFO L256 TraceCheckUtils]: 4: Hoare triple {980#true} call #t~ret4 := main(); {980#true} is VALID [2018-11-23 10:13:54,997 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {980#true} {980#true} #60#return; {980#true} is VALID [2018-11-23 10:13:54,997 INFO L273 TraceCheckUtils]: 2: Hoare triple {980#true} assume true; {980#true} is VALID [2018-11-23 10:13:54,997 INFO L273 TraceCheckUtils]: 1: Hoare triple {980#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {980#true} is VALID [2018-11-23 10:13:54,997 INFO L256 TraceCheckUtils]: 0: Hoare triple {980#true} call ULTIMATE.init(); {980#true} is VALID [2018-11-23 10:13:54,999 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-11-23 10:13:55,001 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 10:13:55,001 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-11-23 10:13:55,001 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-11-23 10:13:55,002 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:13:55,002 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2018-11-23 10:13:55,063 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:13:55,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 10:13:55,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 10:13:55,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-23 10:13:55,064 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 8 states. [2018-11-23 10:13:56,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:13:56,071 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions. [2018-11-23 10:13:56,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 10:13:56,072 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-11-23 10:13:56,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:13:56,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-23 10:13:56,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 65 transitions. [2018-11-23 10:13:56,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-23 10:13:56,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 65 transitions. [2018-11-23 10:13:56,083 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 65 transitions. [2018-11-23 10:13:56,223 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:13:56,225 INFO L225 Difference]: With dead ends: 61 [2018-11-23 10:13:56,225 INFO L226 Difference]: Without dead ends: 51 [2018-11-23 10:13:56,226 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2018-11-23 10:13:56,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-11-23 10:13:56,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 35. [2018-11-23 10:13:56,266 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:13:56,266 INFO L82 GeneralOperation]: Start isEquivalent. First operand 51 states. Second operand 35 states. [2018-11-23 10:13:56,266 INFO L74 IsIncluded]: Start isIncluded. First operand 51 states. Second operand 35 states. [2018-11-23 10:13:56,266 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 35 states. [2018-11-23 10:13:56,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:13:56,270 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2018-11-23 10:13:56,270 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2018-11-23 10:13:56,273 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:13:56,273 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:13:56,273 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 51 states. [2018-11-23 10:13:56,274 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 51 states. [2018-11-23 10:13:56,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:13:56,277 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2018-11-23 10:13:56,278 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2018-11-23 10:13:56,279 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:13:56,279 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:13:56,279 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:13:56,279 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:13:56,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-23 10:13:56,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2018-11-23 10:13:56,281 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 27 [2018-11-23 10:13:56,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:13:56,282 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2018-11-23 10:13:56,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 10:13:56,282 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-11-23 10:13:56,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-23 10:13:56,283 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:13:56,284 INFO L402 BasicCegarLoop]: trace histogram [10, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:13:56,284 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:13:56,284 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:13:56,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1389169850, now seen corresponding path program 3 times [2018-11-23 10:13:56,285 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:13:56,285 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:13:56,307 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-23 10:13:56,535 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-23 10:13:56,535 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 10:13:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:13:56,566 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:13:56,767 INFO L256 TraceCheckUtils]: 0: Hoare triple {1417#true} call ULTIMATE.init(); {1417#true} is VALID [2018-11-23 10:13:56,767 INFO L273 TraceCheckUtils]: 1: Hoare triple {1417#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {1417#true} is VALID [2018-11-23 10:13:56,768 INFO L273 TraceCheckUtils]: 2: Hoare triple {1417#true} assume true; {1417#true} is VALID [2018-11-23 10:13:56,768 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {1417#true} {1417#true} #60#return; {1417#true} is VALID [2018-11-23 10:13:56,768 INFO L256 TraceCheckUtils]: 4: Hoare triple {1417#true} call #t~ret4 := main(); {1417#true} is VALID [2018-11-23 10:13:56,769 INFO L273 TraceCheckUtils]: 5: Hoare triple {1417#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(400000bv32);call ~#b~0.base, ~#b~0.offset := #Ultimate.alloc(400000bv32);~i~0 := 0bv32;~j~0 := 0bv32; {1417#true} is VALID [2018-11-23 10:13:56,769 INFO L273 TraceCheckUtils]: 6: Hoare triple {1417#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {1417#true} is VALID [2018-11-23 10:13:56,769 INFO L273 TraceCheckUtils]: 7: Hoare triple {1417#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {1417#true} is VALID [2018-11-23 10:13:56,770 INFO L273 TraceCheckUtils]: 8: Hoare triple {1417#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {1417#true} is VALID [2018-11-23 10:13:56,770 INFO L273 TraceCheckUtils]: 9: Hoare triple {1417#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {1417#true} is VALID [2018-11-23 10:13:56,770 INFO L273 TraceCheckUtils]: 10: Hoare triple {1417#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {1417#true} is VALID [2018-11-23 10:13:56,770 INFO L273 TraceCheckUtils]: 11: Hoare triple {1417#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {1417#true} is VALID [2018-11-23 10:13:56,770 INFO L273 TraceCheckUtils]: 12: Hoare triple {1417#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {1417#true} is VALID [2018-11-23 10:13:56,770 INFO L273 TraceCheckUtils]: 13: Hoare triple {1417#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {1417#true} is VALID [2018-11-23 10:13:56,771 INFO L273 TraceCheckUtils]: 14: Hoare triple {1417#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {1417#true} is VALID [2018-11-23 10:13:56,771 INFO L273 TraceCheckUtils]: 15: Hoare triple {1417#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {1417#true} is VALID [2018-11-23 10:13:56,771 INFO L273 TraceCheckUtils]: 16: Hoare triple {1417#true} assume !~bvslt32(~i~0, 100000bv32); {1417#true} is VALID [2018-11-23 10:13:56,772 INFO L273 TraceCheckUtils]: 17: Hoare triple {1417#true} ~i~0 := 1bv32; {1473#(= (bvadd main_~i~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-23 10:13:56,774 INFO L273 TraceCheckUtils]: 18: Hoare triple {1473#(= (bvadd main_~i~0 (_ bv4294967295 32)) (_ bv0 32))} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {1477#(= (_ bv9 32) main_~i~0)} is VALID [2018-11-23 10:13:56,775 INFO L273 TraceCheckUtils]: 19: Hoare triple {1477#(= (_ bv9 32) main_~i~0)} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {1481#(= (bvadd main_~i~0 (_ bv4294967279 32)) (_ bv0 32))} is VALID [2018-11-23 10:13:56,778 INFO L273 TraceCheckUtils]: 20: Hoare triple {1481#(= (bvadd main_~i~0 (_ bv4294967279 32)) (_ bv0 32))} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {1485#(= (_ bv25 32) main_~i~0)} is VALID [2018-11-23 10:13:56,779 INFO L273 TraceCheckUtils]: 21: Hoare triple {1485#(= (_ bv25 32) main_~i~0)} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {1489#(= (bvadd main_~i~0 (_ bv4294967263 32)) (_ bv0 32))} is VALID [2018-11-23 10:13:56,782 INFO L273 TraceCheckUtils]: 22: Hoare triple {1489#(= (bvadd main_~i~0 (_ bv4294967263 32)) (_ bv0 32))} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {1493#(= (bvadd main_~i~0 (_ bv4294967255 32)) (_ bv0 32))} is VALID [2018-11-23 10:13:56,786 INFO L273 TraceCheckUtils]: 23: Hoare triple {1493#(= (bvadd main_~i~0 (_ bv4294967255 32)) (_ bv0 32))} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {1497#(= (bvadd main_~i~0 (_ bv4294967247 32)) (_ bv0 32))} is VALID [2018-11-23 10:13:56,787 INFO L273 TraceCheckUtils]: 24: Hoare triple {1497#(= (bvadd main_~i~0 (_ bv4294967247 32)) (_ bv0 32))} assume !~bvslt32(~i~0, 100000bv32); {1418#false} is VALID [2018-11-23 10:13:56,787 INFO L273 TraceCheckUtils]: 25: Hoare triple {1418#false} ~i~0 := 1bv32;~j~0 := 0bv32; {1418#false} is VALID [2018-11-23 10:13:56,787 INFO L273 TraceCheckUtils]: 26: Hoare triple {1418#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem2 := read~intINTTYPE4(~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);call #t~mem3 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~bvadd32(1bv32, ~bvmul32(8bv32, ~j~0)))), 4bv32); {1418#false} is VALID [2018-11-23 10:13:56,788 INFO L256 TraceCheckUtils]: 27: Hoare triple {1418#false} call __VERIFIER_assert((if #t~mem2 == #t~mem3 then 1bv32 else 0bv32)); {1418#false} is VALID [2018-11-23 10:13:56,788 INFO L273 TraceCheckUtils]: 28: Hoare triple {1418#false} ~cond := #in~cond; {1418#false} is VALID [2018-11-23 10:13:56,788 INFO L273 TraceCheckUtils]: 29: Hoare triple {1418#false} assume 0bv32 == ~cond; {1418#false} is VALID [2018-11-23 10:13:56,789 INFO L273 TraceCheckUtils]: 30: Hoare triple {1418#false} assume !false; {1418#false} is VALID [2018-11-23 10:13:56,790 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-11-23 10:13:56,791 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 10:13:57,040 INFO L273 TraceCheckUtils]: 30: Hoare triple {1418#false} assume !false; {1418#false} is VALID [2018-11-23 10:13:57,041 INFO L273 TraceCheckUtils]: 29: Hoare triple {1418#false} assume 0bv32 == ~cond; {1418#false} is VALID [2018-11-23 10:13:57,041 INFO L273 TraceCheckUtils]: 28: Hoare triple {1418#false} ~cond := #in~cond; {1418#false} is VALID [2018-11-23 10:13:57,042 INFO L256 TraceCheckUtils]: 27: Hoare triple {1418#false} call __VERIFIER_assert((if #t~mem2 == #t~mem3 then 1bv32 else 0bv32)); {1418#false} is VALID [2018-11-23 10:13:57,042 INFO L273 TraceCheckUtils]: 26: Hoare triple {1418#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem2 := read~intINTTYPE4(~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);call #t~mem3 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~bvadd32(1bv32, ~bvmul32(8bv32, ~j~0)))), 4bv32); {1418#false} is VALID [2018-11-23 10:13:57,043 INFO L273 TraceCheckUtils]: 25: Hoare triple {1418#false} ~i~0 := 1bv32;~j~0 := 0bv32; {1418#false} is VALID [2018-11-23 10:13:57,046 INFO L273 TraceCheckUtils]: 24: Hoare triple {1537#(bvslt main_~i~0 (_ bv100000 32))} assume !~bvslt32(~i~0, 100000bv32); {1418#false} is VALID [2018-11-23 10:13:57,047 INFO L273 TraceCheckUtils]: 23: Hoare triple {1541#(bvslt (bvadd main_~i~0 (_ bv8 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {1537#(bvslt main_~i~0 (_ bv100000 32))} is VALID [2018-11-23 10:13:57,053 INFO L273 TraceCheckUtils]: 22: Hoare triple {1545#(bvslt (bvadd main_~i~0 (_ bv16 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {1541#(bvslt (bvadd main_~i~0 (_ bv8 32)) (_ bv100000 32))} is VALID [2018-11-23 10:13:57,058 INFO L273 TraceCheckUtils]: 21: Hoare triple {1549#(bvslt (bvadd main_~i~0 (_ bv24 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {1545#(bvslt (bvadd main_~i~0 (_ bv16 32)) (_ bv100000 32))} is VALID [2018-11-23 10:13:57,063 INFO L273 TraceCheckUtils]: 20: Hoare triple {1553#(bvslt (bvadd main_~i~0 (_ bv32 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {1549#(bvslt (bvadd main_~i~0 (_ bv24 32)) (_ bv100000 32))} is VALID [2018-11-23 10:13:57,070 INFO L273 TraceCheckUtils]: 19: Hoare triple {1557#(bvslt (bvadd main_~i~0 (_ bv40 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {1553#(bvslt (bvadd main_~i~0 (_ bv32 32)) (_ bv100000 32))} is VALID [2018-11-23 10:13:57,075 INFO L273 TraceCheckUtils]: 18: Hoare triple {1561#(bvslt (bvadd main_~i~0 (_ bv48 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {1557#(bvslt (bvadd main_~i~0 (_ bv40 32)) (_ bv100000 32))} is VALID [2018-11-23 10:13:57,076 INFO L273 TraceCheckUtils]: 17: Hoare triple {1417#true} ~i~0 := 1bv32; {1561#(bvslt (bvadd main_~i~0 (_ bv48 32)) (_ bv100000 32))} is VALID [2018-11-23 10:13:57,077 INFO L273 TraceCheckUtils]: 16: Hoare triple {1417#true} assume !~bvslt32(~i~0, 100000bv32); {1417#true} is VALID [2018-11-23 10:13:57,077 INFO L273 TraceCheckUtils]: 15: Hoare triple {1417#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {1417#true} is VALID [2018-11-23 10:13:57,078 INFO L273 TraceCheckUtils]: 14: Hoare triple {1417#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {1417#true} is VALID [2018-11-23 10:13:57,078 INFO L273 TraceCheckUtils]: 13: Hoare triple {1417#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {1417#true} is VALID [2018-11-23 10:13:57,079 INFO L273 TraceCheckUtils]: 12: Hoare triple {1417#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {1417#true} is VALID [2018-11-23 10:13:57,079 INFO L273 TraceCheckUtils]: 11: Hoare triple {1417#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {1417#true} is VALID [2018-11-23 10:13:57,079 INFO L273 TraceCheckUtils]: 10: Hoare triple {1417#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {1417#true} is VALID [2018-11-23 10:13:57,080 INFO L273 TraceCheckUtils]: 9: Hoare triple {1417#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {1417#true} is VALID [2018-11-23 10:13:57,080 INFO L273 TraceCheckUtils]: 8: Hoare triple {1417#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {1417#true} is VALID [2018-11-23 10:13:57,080 INFO L273 TraceCheckUtils]: 7: Hoare triple {1417#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {1417#true} is VALID [2018-11-23 10:13:57,080 INFO L273 TraceCheckUtils]: 6: Hoare triple {1417#true} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {1417#true} is VALID [2018-11-23 10:13:57,081 INFO L273 TraceCheckUtils]: 5: Hoare triple {1417#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(400000bv32);call ~#b~0.base, ~#b~0.offset := #Ultimate.alloc(400000bv32);~i~0 := 0bv32;~j~0 := 0bv32; {1417#true} is VALID [2018-11-23 10:13:57,081 INFO L256 TraceCheckUtils]: 4: Hoare triple {1417#true} call #t~ret4 := main(); {1417#true} is VALID [2018-11-23 10:13:57,081 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {1417#true} {1417#true} #60#return; {1417#true} is VALID [2018-11-23 10:13:57,082 INFO L273 TraceCheckUtils]: 2: Hoare triple {1417#true} assume true; {1417#true} is VALID [2018-11-23 10:13:57,082 INFO L273 TraceCheckUtils]: 1: Hoare triple {1417#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {1417#true} is VALID [2018-11-23 10:13:57,082 INFO L256 TraceCheckUtils]: 0: Hoare triple {1417#true} call ULTIMATE.init(); {1417#true} is VALID [2018-11-23 10:13:57,084 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-11-23 10:13:57,090 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 10:13:57,090 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-11-23 10:13:57,091 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 31 [2018-11-23 10:13:57,091 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:13:57,091 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states. [2018-11-23 10:13:57,154 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:13:57,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-23 10:13:57,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-23 10:13:57,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2018-11-23 10:13:57,155 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 16 states. [2018-11-23 10:14:01,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:14:01,377 INFO L93 Difference]: Finished difference Result 93 states and 116 transitions. [2018-11-23 10:14:01,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-23 10:14:01,377 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 31 [2018-11-23 10:14:01,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:14:01,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-23 10:14:01,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 113 transitions. [2018-11-23 10:14:01,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-23 10:14:01,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 113 transitions. [2018-11-23 10:14:01,389 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 113 transitions. [2018-11-23 10:14:01,639 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 113 edges. 113 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:14:01,643 INFO L225 Difference]: With dead ends: 93 [2018-11-23 10:14:01,644 INFO L226 Difference]: Without dead ends: 83 [2018-11-23 10:14:01,644 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=174, Invalid=288, Unknown=0, NotChecked=0, Total=462 [2018-11-23 10:14:01,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-11-23 10:14:01,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 43. [2018-11-23 10:14:01,845 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:14:01,845 INFO L82 GeneralOperation]: Start isEquivalent. First operand 83 states. Second operand 43 states. [2018-11-23 10:14:01,845 INFO L74 IsIncluded]: Start isIncluded. First operand 83 states. Second operand 43 states. [2018-11-23 10:14:01,845 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 43 states. [2018-11-23 10:14:01,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:14:01,851 INFO L93 Difference]: Finished difference Result 83 states and 98 transitions. [2018-11-23 10:14:01,851 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 98 transitions. [2018-11-23 10:14:01,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:14:01,853 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:14:01,853 INFO L74 IsIncluded]: Start isIncluded. First operand 43 states. Second operand 83 states. [2018-11-23 10:14:01,853 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 83 states. [2018-11-23 10:14:01,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:14:01,858 INFO L93 Difference]: Finished difference Result 83 states and 98 transitions. [2018-11-23 10:14:01,858 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 98 transitions. [2018-11-23 10:14:01,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:14:01,859 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:14:01,860 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:14:01,860 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:14:01,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-23 10:14:01,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2018-11-23 10:14:01,862 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 31 [2018-11-23 10:14:01,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:14:01,862 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2018-11-23 10:14:01,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-23 10:14:01,863 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2018-11-23 10:14:01,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-23 10:14:01,864 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:14:01,864 INFO L402 BasicCegarLoop]: trace histogram [14, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:14:01,864 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:14:01,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:14:01,865 INFO L82 PathProgramCache]: Analyzing trace with hash -4348730, now seen corresponding path program 4 times [2018-11-23 10:14:01,865 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:14:01,865 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:14:01,899 INFO L101 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-23 10:14:02,024 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-23 10:14:02,024 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 10:14:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:14:02,071 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:14:02,297 INFO L256 TraceCheckUtils]: 0: Hoare triple {2034#true} call ULTIMATE.init(); {2034#true} is VALID [2018-11-23 10:14:02,297 INFO L273 TraceCheckUtils]: 1: Hoare triple {2034#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {2034#true} is VALID [2018-11-23 10:14:02,298 INFO L273 TraceCheckUtils]: 2: Hoare triple {2034#true} assume true; {2034#true} is VALID [2018-11-23 10:14:02,298 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {2034#true} {2034#true} #60#return; {2034#true} is VALID [2018-11-23 10:14:02,299 INFO L256 TraceCheckUtils]: 4: Hoare triple {2034#true} call #t~ret4 := main(); {2034#true} is VALID [2018-11-23 10:14:02,300 INFO L273 TraceCheckUtils]: 5: Hoare triple {2034#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(400000bv32);call ~#b~0.base, ~#b~0.offset := #Ultimate.alloc(400000bv32);~i~0 := 0bv32;~j~0 := 0bv32; {2054#(= main_~i~0 (_ bv0 32))} is VALID [2018-11-23 10:14:02,301 INFO L273 TraceCheckUtils]: 6: Hoare triple {2054#(= main_~i~0 (_ bv0 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {2058#(= (bvadd main_~i~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-23 10:14:02,301 INFO L273 TraceCheckUtils]: 7: Hoare triple {2058#(= (bvadd main_~i~0 (_ bv4294967295 32)) (_ bv0 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {2062#(= (bvadd main_~i~0 (_ bv4294967294 32)) (_ bv0 32))} is VALID [2018-11-23 10:14:02,302 INFO L273 TraceCheckUtils]: 8: Hoare triple {2062#(= (bvadd main_~i~0 (_ bv4294967294 32)) (_ bv0 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {2066#(= (bvadd main_~i~0 (_ bv4294967293 32)) (_ bv0 32))} is VALID [2018-11-23 10:14:02,303 INFO L273 TraceCheckUtils]: 9: Hoare triple {2066#(= (bvadd main_~i~0 (_ bv4294967293 32)) (_ bv0 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {2070#(= (bvadd main_~i~0 (_ bv4294967292 32)) (_ bv0 32))} is VALID [2018-11-23 10:14:02,303 INFO L273 TraceCheckUtils]: 10: Hoare triple {2070#(= (bvadd main_~i~0 (_ bv4294967292 32)) (_ bv0 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {2074#(= (bvadd main_~i~0 (_ bv4294967291 32)) (_ bv0 32))} is VALID [2018-11-23 10:14:02,304 INFO L273 TraceCheckUtils]: 11: Hoare triple {2074#(= (bvadd main_~i~0 (_ bv4294967291 32)) (_ bv0 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {2078#(= (_ bv6 32) main_~i~0)} is VALID [2018-11-23 10:14:02,304 INFO L273 TraceCheckUtils]: 12: Hoare triple {2078#(= (_ bv6 32) main_~i~0)} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {2082#(= (bvadd main_~i~0 (_ bv4294967289 32)) (_ bv0 32))} is VALID [2018-11-23 10:14:02,306 INFO L273 TraceCheckUtils]: 13: Hoare triple {2082#(= (bvadd main_~i~0 (_ bv4294967289 32)) (_ bv0 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {2086#(= (_ bv8 32) main_~i~0)} is VALID [2018-11-23 10:14:02,307 INFO L273 TraceCheckUtils]: 14: Hoare triple {2086#(= (_ bv8 32) main_~i~0)} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {2090#(= (bvadd main_~i~0 (_ bv4294967287 32)) (_ bv0 32))} is VALID [2018-11-23 10:14:02,307 INFO L273 TraceCheckUtils]: 15: Hoare triple {2090#(= (bvadd main_~i~0 (_ bv4294967287 32)) (_ bv0 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {2094#(= (bvadd main_~i~0 (_ bv4294967286 32)) (_ bv0 32))} is VALID [2018-11-23 10:14:02,308 INFO L273 TraceCheckUtils]: 16: Hoare triple {2094#(= (bvadd main_~i~0 (_ bv4294967286 32)) (_ bv0 32))} assume !~bvslt32(~i~0, 100000bv32); {2035#false} is VALID [2018-11-23 10:14:02,309 INFO L273 TraceCheckUtils]: 17: Hoare triple {2035#false} ~i~0 := 1bv32; {2035#false} is VALID [2018-11-23 10:14:02,309 INFO L273 TraceCheckUtils]: 18: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,309 INFO L273 TraceCheckUtils]: 19: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,309 INFO L273 TraceCheckUtils]: 20: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,310 INFO L273 TraceCheckUtils]: 21: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,310 INFO L273 TraceCheckUtils]: 22: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,310 INFO L273 TraceCheckUtils]: 23: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,311 INFO L273 TraceCheckUtils]: 24: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,311 INFO L273 TraceCheckUtils]: 25: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,311 INFO L273 TraceCheckUtils]: 26: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,311 INFO L273 TraceCheckUtils]: 27: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,312 INFO L273 TraceCheckUtils]: 28: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,312 INFO L273 TraceCheckUtils]: 29: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,312 INFO L273 TraceCheckUtils]: 30: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,312 INFO L273 TraceCheckUtils]: 31: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,313 INFO L273 TraceCheckUtils]: 32: Hoare triple {2035#false} assume !~bvslt32(~i~0, 100000bv32); {2035#false} is VALID [2018-11-23 10:14:02,313 INFO L273 TraceCheckUtils]: 33: Hoare triple {2035#false} ~i~0 := 1bv32;~j~0 := 0bv32; {2035#false} is VALID [2018-11-23 10:14:02,313 INFO L273 TraceCheckUtils]: 34: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem2 := read~intINTTYPE4(~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);call #t~mem3 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~bvadd32(1bv32, ~bvmul32(8bv32, ~j~0)))), 4bv32); {2035#false} is VALID [2018-11-23 10:14:02,313 INFO L256 TraceCheckUtils]: 35: Hoare triple {2035#false} call __VERIFIER_assert((if #t~mem2 == #t~mem3 then 1bv32 else 0bv32)); {2035#false} is VALID [2018-11-23 10:14:02,314 INFO L273 TraceCheckUtils]: 36: Hoare triple {2035#false} ~cond := #in~cond; {2035#false} is VALID [2018-11-23 10:14:02,314 INFO L273 TraceCheckUtils]: 37: Hoare triple {2035#false} assume 0bv32 == ~cond; {2035#false} is VALID [2018-11-23 10:14:02,314 INFO L273 TraceCheckUtils]: 38: Hoare triple {2035#false} assume !false; {2035#false} is VALID [2018-11-23 10:14:02,316 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2018-11-23 10:14:02,316 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 10:14:02,781 INFO L273 TraceCheckUtils]: 38: Hoare triple {2035#false} assume !false; {2035#false} is VALID [2018-11-23 10:14:02,782 INFO L273 TraceCheckUtils]: 37: Hoare triple {2035#false} assume 0bv32 == ~cond; {2035#false} is VALID [2018-11-23 10:14:02,782 INFO L273 TraceCheckUtils]: 36: Hoare triple {2035#false} ~cond := #in~cond; {2035#false} is VALID [2018-11-23 10:14:02,782 INFO L256 TraceCheckUtils]: 35: Hoare triple {2035#false} call __VERIFIER_assert((if #t~mem2 == #t~mem3 then 1bv32 else 0bv32)); {2035#false} is VALID [2018-11-23 10:14:02,783 INFO L273 TraceCheckUtils]: 34: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem2 := read~intINTTYPE4(~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);call #t~mem3 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~bvadd32(1bv32, ~bvmul32(8bv32, ~j~0)))), 4bv32); {2035#false} is VALID [2018-11-23 10:14:02,783 INFO L273 TraceCheckUtils]: 33: Hoare triple {2035#false} ~i~0 := 1bv32;~j~0 := 0bv32; {2035#false} is VALID [2018-11-23 10:14:02,783 INFO L273 TraceCheckUtils]: 32: Hoare triple {2035#false} assume !~bvslt32(~i~0, 100000bv32); {2035#false} is VALID [2018-11-23 10:14:02,783 INFO L273 TraceCheckUtils]: 31: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,784 INFO L273 TraceCheckUtils]: 30: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,784 INFO L273 TraceCheckUtils]: 29: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,784 INFO L273 TraceCheckUtils]: 28: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,784 INFO L273 TraceCheckUtils]: 27: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,785 INFO L273 TraceCheckUtils]: 26: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,785 INFO L273 TraceCheckUtils]: 25: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,785 INFO L273 TraceCheckUtils]: 24: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,785 INFO L273 TraceCheckUtils]: 23: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,785 INFO L273 TraceCheckUtils]: 22: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,786 INFO L273 TraceCheckUtils]: 21: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,786 INFO L273 TraceCheckUtils]: 20: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,786 INFO L273 TraceCheckUtils]: 19: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,786 INFO L273 TraceCheckUtils]: 18: Hoare triple {2035#false} assume !!~bvslt32(~i~0, 100000bv32);call #t~mem1 := read~intINTTYPE4(~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);call write~intINTTYPE4(#t~mem1, ~#a~0.base, ~bvadd32(~#a~0.offset, ~bvmul32(4bv32, ~j~0)), 4bv32);havoc #t~mem1;~i~0 := ~bvadd32(8bv32, ~i~0);~j~0 := ~bvadd32(1bv32, ~j~0); {2035#false} is VALID [2018-11-23 10:14:02,786 INFO L273 TraceCheckUtils]: 17: Hoare triple {2035#false} ~i~0 := 1bv32; {2035#false} is VALID [2018-11-23 10:14:02,794 INFO L273 TraceCheckUtils]: 16: Hoare triple {2230#(bvslt main_~i~0 (_ bv100000 32))} assume !~bvslt32(~i~0, 100000bv32); {2035#false} is VALID [2018-11-23 10:14:02,795 INFO L273 TraceCheckUtils]: 15: Hoare triple {2234#(bvslt (bvadd main_~i~0 (_ bv1 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {2230#(bvslt main_~i~0 (_ bv100000 32))} is VALID [2018-11-23 10:14:02,800 INFO L273 TraceCheckUtils]: 14: Hoare triple {2238#(bvslt (bvadd main_~i~0 (_ bv2 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {2234#(bvslt (bvadd main_~i~0 (_ bv1 32)) (_ bv100000 32))} is VALID [2018-11-23 10:14:02,804 INFO L273 TraceCheckUtils]: 13: Hoare triple {2242#(bvslt (bvadd main_~i~0 (_ bv3 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {2238#(bvslt (bvadd main_~i~0 (_ bv2 32)) (_ bv100000 32))} is VALID [2018-11-23 10:14:02,809 INFO L273 TraceCheckUtils]: 12: Hoare triple {2246#(bvslt (bvadd main_~i~0 (_ bv4 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {2242#(bvslt (bvadd main_~i~0 (_ bv3 32)) (_ bv100000 32))} is VALID [2018-11-23 10:14:02,813 INFO L273 TraceCheckUtils]: 11: Hoare triple {2250#(bvslt (bvadd main_~i~0 (_ bv5 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {2246#(bvslt (bvadd main_~i~0 (_ bv4 32)) (_ bv100000 32))} is VALID [2018-11-23 10:14:02,821 INFO L273 TraceCheckUtils]: 10: Hoare triple {2254#(bvslt (bvadd main_~i~0 (_ bv6 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {2250#(bvslt (bvadd main_~i~0 (_ bv5 32)) (_ bv100000 32))} is VALID [2018-11-23 10:14:02,827 INFO L273 TraceCheckUtils]: 9: Hoare triple {2258#(bvslt (bvadd main_~i~0 (_ bv7 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {2254#(bvslt (bvadd main_~i~0 (_ bv6 32)) (_ bv100000 32))} is VALID [2018-11-23 10:14:02,832 INFO L273 TraceCheckUtils]: 8: Hoare triple {2262#(bvslt (bvadd main_~i~0 (_ bv8 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {2258#(bvslt (bvadd main_~i~0 (_ bv7 32)) (_ bv100000 32))} is VALID [2018-11-23 10:14:02,835 INFO L273 TraceCheckUtils]: 7: Hoare triple {2266#(bvslt (bvadd main_~i~0 (_ bv9 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {2262#(bvslt (bvadd main_~i~0 (_ bv8 32)) (_ bv100000 32))} is VALID [2018-11-23 10:14:02,843 INFO L273 TraceCheckUtils]: 6: Hoare triple {2270#(bvslt (bvadd main_~i~0 (_ bv10 32)) (_ bv100000 32))} assume !!~bvslt32(~i~0, 100000bv32);call write~intINTTYPE4(#t~nondet0, ~#b~0.base, ~bvadd32(~#b~0.offset, ~bvmul32(4bv32, ~i~0)), 4bv32);havoc #t~nondet0;~i~0 := ~bvadd32(1bv32, ~i~0); {2266#(bvslt (bvadd main_~i~0 (_ bv9 32)) (_ bv100000 32))} is VALID [2018-11-23 10:14:02,844 INFO L273 TraceCheckUtils]: 5: Hoare triple {2034#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(400000bv32);call ~#b~0.base, ~#b~0.offset := #Ultimate.alloc(400000bv32);~i~0 := 0bv32;~j~0 := 0bv32; {2270#(bvslt (bvadd main_~i~0 (_ bv10 32)) (_ bv100000 32))} is VALID [2018-11-23 10:14:02,844 INFO L256 TraceCheckUtils]: 4: Hoare triple {2034#true} call #t~ret4 := main(); {2034#true} is VALID [2018-11-23 10:14:02,844 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {2034#true} {2034#true} #60#return; {2034#true} is VALID [2018-11-23 10:14:02,845 INFO L273 TraceCheckUtils]: 2: Hoare triple {2034#true} assume true; {2034#true} is VALID [2018-11-23 10:14:02,845 INFO L273 TraceCheckUtils]: 1: Hoare triple {2034#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {2034#true} is VALID [2018-11-23 10:14:02,845 INFO L256 TraceCheckUtils]: 0: Hoare triple {2034#true} call ULTIMATE.init(); {2034#true} is VALID [2018-11-23 10:14:02,846 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2018-11-23 10:14:02,848 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 10:14:02,848 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2018-11-23 10:14:02,849 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 39 [2018-11-23 10:14:02,849 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:14:02,850 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 24 states. [2018-11-23 10:14:02,921 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:14:02,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-23 10:14:02,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-23 10:14:02,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2018-11-23 10:14:02,922 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand 24 states. [2018-11-23 10:14:07,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:14:07,021 INFO L93 Difference]: Finished difference Result 93 states and 112 transitions. [2018-11-23 10:14:07,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-23 10:14:07,021 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 39 [2018-11-23 10:14:07,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:14:07,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-23 10:14:07,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 88 transitions. [2018-11-23 10:14:07,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-23 10:14:07,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 88 transitions. [2018-11-23 10:14:07,032 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 24 states and 88 transitions. [2018-11-23 10:14:07,217 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 88 edges. 88 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:14:07,219 INFO L225 Difference]: With dead ends: 93 [2018-11-23 10:14:07,219 INFO L226 Difference]: Without dead ends: 67 [2018-11-23 10:14:07,220 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2018-11-23 10:14:07,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-11-23 10:14:07,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 55. [2018-11-23 10:14:07,271 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:14:07,271 INFO L82 GeneralOperation]: Start isEquivalent. First operand 67 states. Second operand 55 states. [2018-11-23 10:14:07,271 INFO L74 IsIncluded]: Start isIncluded. First operand 67 states. Second operand 55 states. [2018-11-23 10:14:07,272 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 55 states. [2018-11-23 10:14:07,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:14:07,275 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2018-11-23 10:14:07,275 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2018-11-23 10:14:07,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:14:07,276 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:14:07,276 INFO L74 IsIncluded]: Start isIncluded. First operand 55 states. Second operand 67 states. [2018-11-23 10:14:07,276 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 67 states. [2018-11-23 10:14:07,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:14:07,279 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2018-11-23 10:14:07,279 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2018-11-23 10:14:07,280 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:14:07,280 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:14:07,280 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:14:07,280 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:14:07,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-23 10:14:07,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2018-11-23 10:14:07,282 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 39 [2018-11-23 10:14:07,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:14:07,282 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2018-11-23 10:14:07,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-11-23 10:14:07,283 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2018-11-23 10:14:07,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-23 10:14:07,284 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:14:07,284 INFO L402 BasicCegarLoop]: trace histogram [22, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:14:07,284 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:14:07,284 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:14:07,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1896931270, now seen corresponding path program 5 times [2018-11-23 10:14:07,285 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:14:07,285 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:14:07,311 INFO L101 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1