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/loops/terminator_02_false-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 11:24:24,560 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 11:24:24,562 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 11:24:24,581 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 11:24:24,581 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 11:24:24,583 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 11:24:24,585 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 11:24:24,587 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 11:24:24,590 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 11:24:24,591 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 11:24:24,593 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 11:24:24,593 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 11:24:24,595 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 11:24:24,596 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 11:24:24,597 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 11:24:24,606 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 11:24:24,607 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 11:24:24,611 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 11:24:24,613 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 11:24:24,617 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 11:24:24,619 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 11:24:24,621 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 11:24:24,624 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-23 11:24:24,637 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 11:24:24,665 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 11:24:24,670 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 11:24:24,671 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 11:24:24,671 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 11:24:24,672 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 11:24:24,672 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 11:24:24,672 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 11:24:24,672 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 11:24:24,672 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 11:24:24,673 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 11:24:24,673 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 11:24:24,673 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 11:24:24,673 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 11:24:24,673 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 11:24:24,673 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 11:24:24,674 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 11:24:24,674 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 11:24:24,674 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 11:24:24,674 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 11:24:24,674 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 11:24:24,675 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 11:24:24,675 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 11:24:24,675 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 11:24:24,675 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 11:24:24,675 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 11:24:24,675 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 11:24:24,676 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 11:24:24,676 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 11:24:24,676 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 11:24:24,676 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 11:24:24,676 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 11:24:24,677 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 11:24:24,677 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 11:24:24,720 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 11:24:24,733 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 11:24:24,737 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 11:24:24,739 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 11:24:24,739 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 11:24:24,740 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02_false-unreach-call_true-termination.i [2018-11-23 11:24:24,800 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9126c31d3/c72d71c256b042d784cad19ba207aee4/FLAG1571b728f [2018-11-23 11:24:25,280 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 11:24:25,281 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02_false-unreach-call_true-termination.i [2018-11-23 11:24:25,288 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9126c31d3/c72d71c256b042d784cad19ba207aee4/FLAG1571b728f [2018-11-23 11:24:25,632 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9126c31d3/c72d71c256b042d784cad19ba207aee4 [2018-11-23 11:24:25,643 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 11:24:25,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 11:24:25,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 11:24:25,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 11:24:25,650 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 11:24:25,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:24:25" (1/1) ... [2018-11-23 11:24:25,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@519e8533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:25, skipping insertion in model container [2018-11-23 11:24:25,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:24:25" (1/1) ... [2018-11-23 11:24:25,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 11:24:25,688 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 11:24:25,951 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:24:25,957 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 11:24:25,978 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:24:25,996 INFO L195 MainTranslator]: Completed translation [2018-11-23 11:24:25,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:25 WrapperNode [2018-11-23 11:24:25,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 11:24:25,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 11:24:25,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 11:24:25,998 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 11:24:26,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:25" (1/1) ... [2018-11-23 11:24:26,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:25" (1/1) ... [2018-11-23 11:24:26,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 11:24:26,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 11:24:26,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 11:24:26,025 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 11:24:26,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:25" (1/1) ... [2018-11-23 11:24:26,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:25" (1/1) ... [2018-11-23 11:24:26,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:25" (1/1) ... [2018-11-23 11:24:26,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:25" (1/1) ... [2018-11-23 11:24:26,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:25" (1/1) ... [2018-11-23 11:24:26,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:25" (1/1) ... [2018-11-23 11:24:26,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:25" (1/1) ... [2018-11-23 11:24:26,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 11:24:26,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 11:24:26,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 11:24:26,060 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 11:24:26,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:25" (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 11:24:26,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 11:24:26,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 11:24:26,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 11:24:26,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 11:24:26,192 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 11:24:26,192 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 11:24:26,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 11:24:26,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 11:24:26,678 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 11:24:26,679 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 11:24:26,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:24:26 BoogieIcfgContainer [2018-11-23 11:24:26,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 11:24:26,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 11:24:26,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 11:24:26,685 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 11:24:26,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:24:25" (1/3) ... [2018-11-23 11:24:26,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590e7f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:24:26, skipping insertion in model container [2018-11-23 11:24:26,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:25" (2/3) ... [2018-11-23 11:24:26,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590e7f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:24:26, skipping insertion in model container [2018-11-23 11:24:26,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:24:26" (3/3) ... [2018-11-23 11:24:26,689 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_02_false-unreach-call_true-termination.i [2018-11-23 11:24:26,699 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 11:24:26,706 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 11:24:26,725 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 11:24:26,759 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 11:24:26,760 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 11:24:26,760 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 11:24:26,760 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 11:24:26,761 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 11:24:26,761 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 11:24:26,761 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 11:24:26,762 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 11:24:26,762 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 11:24:26,781 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-23 11:24:26,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 11:24:26,788 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:24:26,789 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:24:26,791 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:24:26,797 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:24:26,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1712329921, now seen corresponding path program 1 times [2018-11-23 11:24:26,802 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 11:24:26,803 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 11:24:26,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:24:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:24:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:24:26,897 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 11:24:26,952 INFO L256 TraceCheckUtils]: 0: Hoare triple {22#true} call ULTIMATE.init(); {22#true} is VALID [2018-11-23 11:24:26,957 INFO L273 TraceCheckUtils]: 1: Hoare triple {22#true} assume true; {22#true} is VALID [2018-11-23 11:24:26,960 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {22#true} {22#true} #38#return; {22#true} is VALID [2018-11-23 11:24:26,960 INFO L256 TraceCheckUtils]: 3: Hoare triple {22#true} call #t~ret7 := main(); {22#true} is VALID [2018-11-23 11:24:26,960 INFO L273 TraceCheckUtils]: 4: Hoare triple {22#true} ~x~0 := #t~nondet0;havoc #t~nondet0;~y~0 := #t~nondet1;havoc #t~nondet1;~z~0 := #t~nondet2;havoc #t~nondet2; {22#true} is VALID [2018-11-23 11:24:26,963 INFO L273 TraceCheckUtils]: 5: Hoare triple {22#true} assume !true; {23#false} is VALID [2018-11-23 11:24:26,963 INFO L256 TraceCheckUtils]: 6: Hoare triple {23#false} call __VERIFIER_assert(0bv32); {23#false} is VALID [2018-11-23 11:24:26,964 INFO L273 TraceCheckUtils]: 7: Hoare triple {23#false} ~cond := #in~cond; {23#false} is VALID [2018-11-23 11:24:26,964 INFO L273 TraceCheckUtils]: 8: Hoare triple {23#false} assume 0bv32 == ~cond; {23#false} is VALID [2018-11-23 11:24:26,964 INFO L273 TraceCheckUtils]: 9: Hoare triple {23#false} assume !false; {23#false} is VALID [2018-11-23 11:24:26,970 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 11:24:26,970 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 11:24:26,978 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:24:26,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 11:24:26,985 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-23 11:24:26,994 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 11:24:26,998 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-23 11:24:27,039 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:24:27,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 11:24:27,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 11:24:27,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 11:24:27,051 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2018-11-23 11:24:27,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:24:27,144 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2018-11-23 11:24:27,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 11:24:27,145 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-23 11:24:27,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:24:27,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 11:24:27,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 35 transitions. [2018-11-23 11:24:27,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 11:24:27,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 35 transitions. [2018-11-23 11:24:27,160 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 35 transitions. [2018-11-23 11:24:27,491 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:24:27,501 INFO L225 Difference]: With dead ends: 31 [2018-11-23 11:24:27,501 INFO L226 Difference]: Without dead ends: 12 [2018-11-23 11:24:27,505 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 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 11:24:27,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-23 11:24:27,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-23 11:24:27,545 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 11:24:27,546 INFO L82 GeneralOperation]: Start isEquivalent. First operand 12 states. Second operand 12 states. [2018-11-23 11:24:27,546 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand 12 states. [2018-11-23 11:24:27,546 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 12 states. [2018-11-23 11:24:27,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:24:27,549 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2018-11-23 11:24:27,549 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-11-23 11:24:27,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:24:27,550 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:24:27,550 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand 12 states. [2018-11-23 11:24:27,551 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 12 states. [2018-11-23 11:24:27,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:24:27,554 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2018-11-23 11:24:27,554 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-11-23 11:24:27,554 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:24:27,555 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:24:27,555 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 11:24:27,555 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 11:24:27,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-23 11:24:27,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2018-11-23 11:24:27,559 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 10 [2018-11-23 11:24:27,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:24:27,560 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2018-11-23 11:24:27,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 11:24:27,560 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-11-23 11:24:27,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 11:24:27,561 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:24:27,561 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:24:27,562 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:24:27,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:24:27,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1703094711, now seen corresponding path program 1 times [2018-11-23 11:24:27,562 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 11:24:27,563 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 11:24:27,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:24:27,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 11:24:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 11:24:27,635 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #38#return; [?] CALL call #t~ret7 := main(); [?] ~x~0 := #t~nondet0;havoc #t~nondet0;~y~0 := #t~nondet1;havoc #t~nondet1;~z~0 := #t~nondet2;havoc #t~nondet2; VAL [main_~x~0=(_ bv100 32), main_~y~0=(_ bv0 32), main_~z~0=(_ bv0 32)] [?] assume !(~bvslt32(~x~0, 100bv32) && ~bvslt32(100bv32, ~z~0)); VAL [main_~x~0=(_ bv100 32), main_~y~0=(_ bv0 32), main_~z~0=(_ bv0 32)] [?] CALL call __VERIFIER_assert(0bv32); VAL [|__VERIFIER_assert_#in~cond|=(_ bv0 32)] [?] ~cond := #in~cond; VAL [__VERIFIER_assert_~cond=(_ bv0 32), |__VERIFIER_assert_#in~cond|=(_ bv0 32)] [?] assume 0bv32 == ~cond; VAL [__VERIFIER_assert_~cond=(_ bv0 32), |__VERIFIER_assert_#in~cond|=(_ bv0 32)] [?] assume !false; VAL [__VERIFIER_assert_~cond=(_ bv0 32), |__VERIFIER_assert_#in~cond|=(_ bv0 32)] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret7 := main(); [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] ~y~0 := #t~nondet1; [L15] havoc #t~nondet1; [L16] ~z~0 := #t~nondet2; [L16] havoc #t~nondet2; VAL [~x~0=100bv32, ~y~0=0bv32, ~z~0=0bv32] [L18-L30] assume !(~bvslt32(~x~0, 100bv32) && ~bvslt32(100bv32, ~z~0)); VAL [~x~0=100bv32, ~y~0=0bv32, ~z~0=0bv32] [L32] CALL call __VERIFIER_assert(0bv32); VAL [#in~cond=0bv32] [L3-L8] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L4-L6] assume 0bv32 == ~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L5] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret7 := main(); [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] ~y~0 := #t~nondet1; [L15] havoc #t~nondet1; [L16] ~z~0 := #t~nondet2; [L16] havoc #t~nondet2; VAL [~x~0=100bv32, ~y~0=0bv32, ~z~0=0bv32] [L18-L30] assume !(~bvslt32(~x~0, 100bv32) && ~bvslt32(100bv32, ~z~0)); VAL [~x~0=100bv32, ~y~0=0bv32, ~z~0=0bv32] [L32] CALL call __VERIFIER_assert(0bv32); VAL [#in~cond=0bv32] [L3-L8] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L4-L6] assume 0bv32 == ~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L5] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret7 := main(); [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] ~y~0 := #t~nondet1; [L15] havoc #t~nondet1; [L16] ~z~0 := #t~nondet2; [L16] havoc #t~nondet2; VAL [~x~0=100bv32, ~y~0=0bv32, ~z~0=0bv32] [L18-L30] COND TRUE !(~bvslt32(~x~0, 100bv32) && ~bvslt32(100bv32, ~z~0)) VAL [~x~0=100bv32, ~y~0=0bv32, ~z~0=0bv32] [L32] CALL call __VERIFIER_assert(0bv32); VAL [#in~cond=0bv32] [L3-L8] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L4] COND TRUE 0bv32 == ~cond VAL [#in~cond=0bv32, ~cond=0bv32] [L5] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret7 := main(); [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] ~y~0 := #t~nondet1; [L15] havoc #t~nondet1; [L16] ~z~0 := #t~nondet2; [L16] havoc #t~nondet2; VAL [~x~0=100bv32, ~y~0=0bv32, ~z~0=0bv32] [L18-L30] COND TRUE !(~bvslt32(~x~0, 100bv32) && ~bvslt32(100bv32, ~z~0)) VAL [~x~0=100bv32, ~y~0=0bv32, ~z~0=0bv32] [L32] CALL call __VERIFIER_assert(0bv32); VAL [#in~cond=0bv32] [L3-L8] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L4] COND TRUE 0bv32 == ~cond VAL [#in~cond=0bv32, ~cond=0bv32] [L5] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret7 := main(); [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] ~y~0 := #t~nondet1; [L15] havoc #t~nondet1; [L16] ~z~0 := #t~nondet2; [L16] havoc #t~nondet2; VAL [~x~0=100bv32, ~y~0=0bv32, ~z~0=0bv32] [L18-L30] COND TRUE !(~bvslt32(~x~0, 100bv32) && ~bvslt32(100bv32, ~z~0)) VAL [~x~0=100bv32, ~y~0=0bv32, ~z~0=0bv32] [L32] CALL call __VERIFIER_assert(0bv32); VAL [#in~cond=0bv32] [L3-L8] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L4] COND TRUE 0bv32 == ~cond VAL [#in~cond=0bv32, ~cond=0bv32] [L5] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret7 := main(); [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] ~y~0 := #t~nondet1; [L15] havoc #t~nondet1; [L16] ~z~0 := #t~nondet2; [L16] havoc #t~nondet2; VAL [~x~0=100bv32, ~y~0=0bv32, ~z~0=0bv32] [L18-L30] COND TRUE !(~bvslt32(~x~0, 100bv32) && ~bvslt32(100bv32, ~z~0)) VAL [~x~0=100bv32, ~y~0=0bv32, ~z~0=0bv32] [L32] CALL call __VERIFIER_assert(0bv32); VAL [#in~cond=0bv32] [L3-L8] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L4] COND TRUE 0bv32 == ~cond VAL [#in~cond=0bv32, ~cond=0bv32] [L5] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] [L14] int x=__VERIFIER_nondet_int(); [L15] int y=__VERIFIER_nondet_int(); [L16] int z=__VERIFIER_nondet_int(); [L18] COND FALSE !(x<100 && 100