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/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3_true-unreach-call.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-370d6ab [2018-11-14 16:47:05,345 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-14 16:47:05,348 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-14 16:47:05,365 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-14 16:47:05,366 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-14 16:47:05,368 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-14 16:47:05,369 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-14 16:47:05,371 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-14 16:47:05,373 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-14 16:47:05,373 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-14 16:47:05,374 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-14 16:47:05,375 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-14 16:47:05,376 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-14 16:47:05,377 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-14 16:47:05,378 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-14 16:47:05,379 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-14 16:47:05,380 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-14 16:47:05,382 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-14 16:47:05,384 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-14 16:47:05,385 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-14 16:47:05,387 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-14 16:47:05,388 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-14 16:47:05,390 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-14 16:47:05,391 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-14 16:47:05,391 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-14 16:47:05,392 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-14 16:47:05,393 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-14 16:47:05,394 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-14 16:47:05,394 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-14 16:47:05,396 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-14 16:47:05,396 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-14 16:47:05,397 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-14 16:47:05,397 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-14 16:47:05,397 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-14 16:47:05,398 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-14 16:47:05,402 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-14 16:47:05,402 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 [2018-11-14 16:47:05,430 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-14 16:47:05,430 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-14 16:47:05,432 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-14 16:47:05,432 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-14 16:47:05,433 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-14 16:47:05,433 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-14 16:47:05,433 INFO L133 SettingsManager]: * Use SBE=true [2018-11-14 16:47:05,433 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-14 16:47:05,434 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-14 16:47:05,434 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-14 16:47:05,434 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-14 16:47:05,434 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-14 16:47:05,434 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-14 16:47:05,434 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-14 16:47:05,435 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-14 16:47:05,435 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-14 16:47:05,435 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-14 16:47:05,435 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-14 16:47:05,435 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-14 16:47:05,437 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-14 16:47:05,437 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-14 16:47:05,438 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-14 16:47:05,438 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-14 16:47:05,438 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-14 16:47:05,438 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-14 16:47:05,439 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-14 16:47:05,439 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-14 16:47:05,439 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-14 16:47:05,439 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-14 16:47:05,439 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-14 16:47:05,439 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-14 16:47:05,440 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-14 16:47:05,494 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-14 16:47:05,507 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-14 16:47:05,510 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-14 16:47:05,512 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-14 16:47:05,512 INFO L276 PluginConnector]: CDTParser initialized [2018-11-14 16:47:05,513 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3_true-unreach-call.c.v+sep-reducer.c [2018-11-14 16:47:05,570 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c320e5bf7/e681a62a2e6b4479aabe2c3fa648cd53/FLAG17c428b52 [2018-11-14 16:47:05,995 INFO L298 CDTParser]: Found 1 translation units. [2018-11-14 16:47:05,995 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3_true-unreach-call.c.v+sep-reducer.c [2018-11-14 16:47:06,006 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c320e5bf7/e681a62a2e6b4479aabe2c3fa648cd53/FLAG17c428b52 [2018-11-14 16:47:06,022 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c320e5bf7/e681a62a2e6b4479aabe2c3fa648cd53 [2018-11-14 16:47:06,032 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-14 16:47:06,033 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-14 16:47:06,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-14 16:47:06,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-14 16:47:06,038 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-14 16:47:06,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:47:06" (1/1) ... [2018-11-14 16:47:06,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eb23eaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:06, skipping insertion in model container [2018-11-14 16:47:06,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:47:06" (1/1) ... [2018-11-14 16:47:06,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-14 16:47:06,081 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-14 16:47:06,338 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 16:47:06,349 INFO L191 MainTranslator]: Completed pre-run [2018-11-14 16:47:06,400 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 16:47:06,416 INFO L195 MainTranslator]: Completed translation [2018-11-14 16:47:06,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:06 WrapperNode [2018-11-14 16:47:06,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-14 16:47:06,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-14 16:47:06,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-14 16:47:06,418 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-14 16:47:06,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:06" (1/1) ... [2018-11-14 16:47:06,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:06" (1/1) ... [2018-11-14 16:47:06,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:06" (1/1) ... [2018-11-14 16:47:06,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:06" (1/1) ... [2018-11-14 16:47:06,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:06" (1/1) ... [2018-11-14 16:47:06,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:06" (1/1) ... [2018-11-14 16:47:06,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:06" (1/1) ... [2018-11-14 16:47:06,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-14 16:47:06,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-14 16:47:06,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-14 16:47:06,459 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-14 16:47:06,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:06" (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 [2018-11-14 16:47:06,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-14 16:47:06,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-14 16:47:06,588 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-14 16:47:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-14 16:47:06,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-14 16:47:06,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-14 16:47:06,589 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-14 16:47:06,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-14 16:47:06,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-14 16:47:07,343 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-14 16:47:07,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:47:07 BoogieIcfgContainer [2018-11-14 16:47:07,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-14 16:47:07,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-14 16:47:07,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-14 16:47:07,349 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-14 16:47:07,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:47:06" (1/3) ... [2018-11-14 16:47:07,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f5ddfb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:47:07, skipping insertion in model container [2018-11-14 16:47:07,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:06" (2/3) ... [2018-11-14 16:47:07,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f5ddfb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:47:07, skipping insertion in model container [2018-11-14 16:47:07,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:47:07" (3/3) ... [2018-11-14 16:47:07,353 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3_true-unreach-call.c.v+sep-reducer.c [2018-11-14 16:47:07,362 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-14 16:47:07,370 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-14 16:47:07,384 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-14 16:47:07,414 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-14 16:47:07,415 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-14 16:47:07,415 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-14 16:47:07,415 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-14 16:47:07,415 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-14 16:47:07,415 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-14 16:47:07,415 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-14 16:47:07,415 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-14 16:47:07,416 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-14 16:47:07,438 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-11-14 16:47:07,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-14 16:47:07,445 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 16:47:07,446 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 16:47:07,448 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 16:47:07,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 16:47:07,456 INFO L82 PathProgramCache]: Analyzing trace with hash 453243256, now seen corresponding path program 1 times [2018-11-14 16:47:07,460 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-14 16:47:07,461 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 [2018-11-14 16:47:07,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 16:47:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 16:47:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2018-11-14 16:47:35,710 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-14 16:47:50,561 WARN L179 SmtUtils]: Spent 10.15 s on a formula simplification that was a NOOP. DAG size: 20 [2018-11-14 16:47:56,624 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~main__x~0 (_ BitVec 32))) (and (not (= (_ bv0 32) (bvurem main_~main__x~0 (_ bv3 32)))) (= (_ bv1 32) (bvurem (bvadd main_~main__x~0 (_ bv4294967294 32)) (_ bv3 32))))) is different from false [2018-11-14 16:47:58,637 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~main__x~0 (_ BitVec 32))) (and (not (= (_ bv0 32) (bvurem main_~main__x~0 (_ bv3 32)))) (= (_ bv1 32) (bvurem (bvadd main_~main__x~0 (_ bv4294967294 32)) (_ bv3 32))))) is different from true [2018-11-14 16:47:58,641 INFO L256 TraceCheckUtils]: 0: Hoare triple {31#true} call ULTIMATE.init(); {31#true} is VALID [2018-11-14 16:47:58,645 INFO L273 TraceCheckUtils]: 1: Hoare triple {31#true} ~__return_main~0 := 0bv32;~__tmp_31_0~0 := 0bv32;~__tmp_28_0~0 := 0bv32;~__return_65~0 := 0bv32;~__tmp_22_0~0 := 0bv32;~__tmp_22_1~0 := 0bv32;~__tmp_25_0~0 := 0bv32;~__tmp_25_1~0 := 0bv32; {31#true} is VALID [2018-11-14 16:47:58,645 INFO L273 TraceCheckUtils]: 2: Hoare triple {31#true} assume true; {31#true} is VALID [2018-11-14 16:47:58,645 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {31#true} {31#true} #70#return; {31#true} is VALID [2018-11-14 16:47:58,646 INFO L256 TraceCheckUtils]: 4: Hoare triple {31#true} call #t~ret4 := main(); {31#true} is VALID [2018-11-14 16:47:58,646 INFO L273 TraceCheckUtils]: 5: Hoare triple {31#true} havoc ~main__x~0;~main__y~0 := 1bv32; {31#true} is VALID [2018-11-14 16:47:58,647 INFO L273 TraceCheckUtils]: 6: Hoare triple {31#true} havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet0;havoc #t~nondet0; {31#true} is VALID [2018-11-14 16:47:58,647 INFO L273 TraceCheckUtils]: 7: Hoare triple {31#true} assume !(~main____CPAchecker_TMP_0~0 == 0bv32); {31#true} is VALID [2018-11-14 16:48:00,659 INFO L273 TraceCheckUtils]: 8: Hoare triple {31#true} assume ~bvurem32(~main__x~0, 3bv32) == 1bv32;~main__x~0 := ~bvadd32(2bv32, ~main__x~0);~main__y~0 := 0bv32;~__tmp_31_0~0 := ~main____CPAchecker_TMP_0~0; {60#(= (_ bv1 32) (bvurem (bvadd main_~main__x~0 (_ bv4294967294 32)) (_ bv3 32)))} is UNKNOWN [2018-11-14 16:48:00,661 INFO L273 TraceCheckUtils]: 9: Hoare triple {60#(= (_ bv1 32) (bvurem (bvadd main_~main__x~0 (_ bv4294967294 32)) (_ bv3 32)))} ~main____CPAchecker_TMP_0~0 := ~__tmp_31_0~0; {60#(= (_ bv1 32) (bvurem (bvadd main_~main__x~0 (_ bv4294967294 32)) (_ bv3 32)))} is VALID [2018-11-14 16:48:00,661 INFO L273 TraceCheckUtils]: 10: Hoare triple {60#(= (_ bv1 32) (bvurem (bvadd main_~main__x~0 (_ bv4294967294 32)) (_ bv3 32)))} havoc ~main____CPAchecker_TMP_0~1;~main____CPAchecker_TMP_0~1 := #t~nondet1;havoc #t~nondet1; {60#(= (_ bv1 32) (bvurem (bvadd main_~main__x~0 (_ bv4294967294 32)) (_ bv3 32)))} is VALID [2018-11-14 16:48:00,662 INFO L273 TraceCheckUtils]: 11: Hoare triple {60#(= (_ bv1 32) (bvurem (bvadd main_~main__x~0 (_ bv4294967294 32)) (_ bv3 32)))} assume !!(~main____CPAchecker_TMP_0~1 == 0bv32); {60#(= (_ bv1 32) (bvurem (bvadd main_~main__x~0 (_ bv4294967294 32)) (_ bv3 32)))} is VALID [2018-11-14 16:48:00,699 INFO L273 TraceCheckUtils]: 12: Hoare triple {60#(= (_ bv1 32) (bvurem (bvadd main_~main__x~0 (_ bv4294967294 32)) (_ bv3 32)))} assume ~main__y~0 == 0bv32;havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvurem32(~main__x~0, 3bv32) == 0bv32 then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {73#(or (= (bvadd main_~__VERIFIER_assert__cond~0 (_ bv4294967295 32)) (_ bv0 32)) (and (exists ((main_~main__x~0 (_ BitVec 32))) (and (not (= (_ bv0 32) (bvurem main_~main__x~0 (_ bv3 32)))) (= (_ bv1 32) (bvurem (bvadd main_~main__x~0 (_ bv4294967294 32)) (_ bv3 32))))) (= main_~__VERIFIER_assert__cond~0 (_ bv0 32))))} is VALID [2018-11-14 16:48:00,701 INFO L273 TraceCheckUtils]: 13: Hoare triple {73#(or (= (bvadd main_~__VERIFIER_assert__cond~0 (_ bv4294967295 32)) (_ bv0 32)) (and (exists ((main_~main__x~0 (_ BitVec 32))) (and (not (= (_ bv0 32) (bvurem main_~main__x~0 (_ bv3 32)))) (= (_ bv1 32) (bvurem (bvadd main_~main__x~0 (_ bv4294967294 32)) (_ bv3 32))))) (= main_~__VERIFIER_assert__cond~0 (_ bv0 32))))} assume ~__VERIFIER_assert__cond~0 == 0bv32; {77#(exists ((main_~main__x~0 (_ BitVec 32))) (and (not (= (_ bv0 32) (bvurem main_~main__x~0 (_ bv3 32)))) (= (_ bv1 32) (bvurem (bvadd main_~main__x~0 (_ bv4294967294 32)) (_ bv3 32)))))} is VALID [2018-11-14 16:48:02,715 INFO L273 TraceCheckUtils]: 14: Hoare triple {77#(exists ((main_~main__x~0 (_ BitVec 32))) (and (not (= (_ bv0 32) (bvurem main_~main__x~0 (_ bv3 32)))) (= (_ bv1 32) (bvurem (bvadd main_~main__x~0 (_ bv4294967294 32)) (_ bv3 32)))))} assume !false; {32#false} is UNKNOWN [2018-11-14 16:48:02,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-14 16:48:02,719 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-14 16:48:02,725 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 16:48:02,726 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-14 16:48:02,732 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-11-14 16:48:02,735 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 16:48:02,739 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-14 16:48:06,924 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 13 inductive. 0 not inductive. 2 times theorem prover too weak to decide inductivity. [2018-11-14 16:48:06,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-14 16:48:06,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-14 16:48:06,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=7, Unknown=2, NotChecked=4, Total=20 [2018-11-14 16:48:06,940 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 5 states.