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_Default.epf -i ../../../trunk/examples/svcomp/loops/sum01_bug02_false-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-18e5b2d-m [2018-11-18 23:56:56,662 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 23:56:56,664 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 23:56:56,679 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 23:56:56,679 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 23:56:56,681 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 23:56:56,685 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 23:56:56,688 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 23:56:56,690 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 23:56:56,692 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 23:56:56,693 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 23:56:56,693 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 23:56:56,696 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 23:56:56,697 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 23:56:56,700 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 23:56:56,701 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 23:56:56,709 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 23:56:56,711 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 23:56:56,712 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 23:56:56,714 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 23:56:56,715 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 23:56:56,716 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 23:56:56,718 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-18 23:56:56,724 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 23:56:56,724 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 23:56:56,725 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 23:56:56,726 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 23:56:56,726 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 23:56:56,744 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 23:56:56,745 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 23:56:56,745 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 23:56:56,746 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 23:56:56,746 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 23:56:56,746 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 23:56:56,747 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 23:56:56,747 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 23:56:56,747 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 23:56:56,747 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 23:56:56,747 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 23:56:56,748 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 23:56:56,748 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 23:56:56,748 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 23:56:56,748 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 23:56:56,748 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 23:56:56,749 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 23:56:56,749 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 23:56:56,749 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 23:56:56,749 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 23:56:56,750 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 23:56:56,750 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 23:56:56,750 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 23:56:56,750 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 23:56:56,750 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 23:56:56,751 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 23:56:56,751 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 23:56:56,751 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 23:56:56,751 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 23:56:56,751 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 23:56:56,752 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 23:56:56,809 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 23:56:56,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 23:56:56,829 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 23:56:56,830 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 23:56:56,831 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 23:56:56,832 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum01_bug02_false-unreach-call_true-termination.i [2018-11-18 23:56:56,911 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc82bb088/c7888efb4dbb4e21ad43e9086ad6d559/FLAGfa2409d0f [2018-11-18 23:56:57,325 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 23:56:57,326 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum01_bug02_false-unreach-call_true-termination.i [2018-11-18 23:56:57,333 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc82bb088/c7888efb4dbb4e21ad43e9086ad6d559/FLAGfa2409d0f [2018-11-18 23:56:57,701 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc82bb088/c7888efb4dbb4e21ad43e9086ad6d559 [2018-11-18 23:56:57,711 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 23:56:57,712 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-18 23:56:57,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 23:56:57,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 23:56:57,717 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 23:56:57,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:56:57" (1/1) ... [2018-11-18 23:56:57,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da2cf15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:56:57, skipping insertion in model container [2018-11-18 23:56:57,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:56:57" (1/1) ... [2018-11-18 23:56:57,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 23:56:57,765 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 23:56:58,050 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 23:56:58,056 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 23:56:58,080 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 23:56:58,096 INFO L195 MainTranslator]: Completed translation [2018-11-18 23:56:58,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:56:58 WrapperNode [2018-11-18 23:56:58,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 23:56:58,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 23:56:58,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 23:56:58,098 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 23:56:58,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:56:58" (1/1) ... [2018-11-18 23:56:58,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:56:58" (1/1) ... [2018-11-18 23:56:58,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:56:58" (1/1) ... [2018-11-18 23:56:58,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:56:58" (1/1) ... [2018-11-18 23:56:58,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:56:58" (1/1) ... [2018-11-18 23:56:58,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:56:58" (1/1) ... [2018-11-18 23:56:58,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:56:58" (1/1) ... [2018-11-18 23:56:58,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 23:56:58,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 23:56:58,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 23:56:58,130 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 23:56:58,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:56:58" (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 [2018-11-18 23:56:58,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 23:56:58,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 23:56:58,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 23:56:58,259 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 23:56:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 23:56:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 23:56:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2018-11-18 23:56:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 23:56:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 23:56:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 23:56:58,721 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 23:56:58,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:56:58 BoogieIcfgContainer [2018-11-18 23:56:58,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 23:56:58,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 23:56:58,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 23:56:58,727 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 23:56:58,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:56:57" (1/3) ... [2018-11-18 23:56:58,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab226b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:56:58, skipping insertion in model container [2018-11-18 23:56:58,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:56:58" (2/3) ... [2018-11-18 23:56:58,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab226b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:56:58, skipping insertion in model container [2018-11-18 23:56:58,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:56:58" (3/3) ... [2018-11-18 23:56:58,731 INFO L112 eAbstractionObserver]: Analyzing ICFG sum01_bug02_false-unreach-call_true-termination.i [2018-11-18 23:56:58,743 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 23:56:58,753 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 23:56:58,770 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 23:56:58,804 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 23:56:58,805 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 23:56:58,805 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 23:56:58,806 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 23:56:58,806 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 23:56:58,806 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 23:56:58,806 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 23:56:58,807 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 23:56:58,807 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 23:56:58,830 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-18 23:56:58,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 23:56:58,837 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 23:56:58,838 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 23:56:58,840 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 23:56:58,847 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 23:56:58,847 INFO L82 PathProgramCache]: Analyzing trace with hash -2007171518, now seen corresponding path program 1 times [2018-11-18 23:56:58,849 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 23:56:58,850 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 23:56:58,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:56:58,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 23:56:58,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:56:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 23:56:58,994 INFO L256 TraceCheckUtils]: 0: Hoare triple {24#true} call ULTIMATE.init(); {24#true} is VALID [2018-11-18 23:56:58,998 INFO L273 TraceCheckUtils]: 1: Hoare triple {24#true} assume true; {24#true} is VALID [2018-11-18 23:56:58,998 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {24#true} {24#true} #40#return; {24#true} is VALID [2018-11-18 23:56:58,999 INFO L256 TraceCheckUtils]: 3: Hoare triple {24#true} call #t~ret3 := main(); {24#true} is VALID [2018-11-18 23:56:58,999 INFO L273 TraceCheckUtils]: 4: Hoare triple {24#true} havoc ~i~0;~j~0 := 10;~n~0 := (if #t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then #t~nondet0 % 4294967296 % 4294967296 else #t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc #t~nondet0;~sn~0 := 0;~i~0 := 1; {24#true} is VALID [2018-11-18 23:56:59,001 INFO L273 TraceCheckUtils]: 5: Hoare triple {24#true} assume !true; {25#false} is VALID [2018-11-18 23:56:59,002 INFO L256 TraceCheckUtils]: 6: Hoare triple {25#false} call __VERIFIER_assert((if ~sn~0 == 2 * ~n~0 || 0 == ~sn~0 then 1 else 0)); {25#false} is VALID [2018-11-18 23:56:59,002 INFO L273 TraceCheckUtils]: 7: Hoare triple {25#false} ~cond := #in~cond; {25#false} is VALID [2018-11-18 23:56:59,003 INFO L273 TraceCheckUtils]: 8: Hoare triple {25#false} assume 0 == ~cond; {25#false} is VALID [2018-11-18 23:56:59,003 INFO L273 TraceCheckUtils]: 9: Hoare triple {25#false} assume !false; {25#false} is VALID [2018-11-18 23:56:59,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 23:56:59,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 23:56:59,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 23:56:59,015 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-18 23:56:59,018 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 23:56:59,023 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-18 23:56:59,069 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 23:56:59,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 23:56:59,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 23:56:59,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 23:56:59,084 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2018-11-18 23:56:59,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:56:59,171 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-11-18 23:56:59,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 23:56:59,172 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-18 23:56:59,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 23:56:59,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-18 23:56:59,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 36 transitions. [2018-11-18 23:56:59,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-18 23:56:59,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 36 transitions. [2018-11-18 23:56:59,187 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 36 transitions. [2018-11-18 23:56:59,477 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 23:56:59,487 INFO L225 Difference]: With dead ends: 32 [2018-11-18 23:56:59,487 INFO L226 Difference]: Without dead ends: 15 [2018-11-18 23:56:59,490 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 23:56:59,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-18 23:56:59,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-18 23:56:59,536 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 23:56:59,537 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 15 states. [2018-11-18 23:56:59,537 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2018-11-18 23:56:59,537 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2018-11-18 23:56:59,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:56:59,541 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-11-18 23:56:59,541 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-11-18 23:56:59,541 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:56:59,542 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 23:56:59,542 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2018-11-18 23:56:59,542 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2018-11-18 23:56:59,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:56:59,545 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-11-18 23:56:59,546 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-11-18 23:56:59,546 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:56:59,546 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 23:56:59,547 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 23:56:59,547 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 23:56:59,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-18 23:56:59,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-11-18 23:56:59,551 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2018-11-18 23:56:59,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 23:56:59,551 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2018-11-18 23:56:59,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 23:56:59,552 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-11-18 23:56:59,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 23:56:59,552 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 23:56:59,553 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 23:56:59,553 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 23:56:59,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 23:56:59,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1715017247, now seen corresponding path program 1 times [2018-11-18 23:56:59,554 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 23:56:59,554 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 23:56:59,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:56:59,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 23:56:59,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:56:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 23:56:59,797 INFO L256 TraceCheckUtils]: 0: Hoare triple {121#true} call ULTIMATE.init(); {121#true} is VALID [2018-11-18 23:56:59,798 INFO L273 TraceCheckUtils]: 1: Hoare triple {121#true} assume true; {121#true} is VALID [2018-11-18 23:56:59,798 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {121#true} {121#true} #40#return; {121#true} is VALID [2018-11-18 23:56:59,798 INFO L256 TraceCheckUtils]: 3: Hoare triple {121#true} call #t~ret3 := main(); {121#true} is VALID [2018-11-18 23:56:59,808 INFO L273 TraceCheckUtils]: 4: Hoare triple {121#true} havoc ~i~0;~j~0 := 10;~n~0 := (if #t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then #t~nondet0 % 4294967296 % 4294967296 else #t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc #t~nondet0;~sn~0 := 0;~i~0 := 1; {123#(= main_~sn~0 0)} is VALID [2018-11-18 23:56:59,821 INFO L273 TraceCheckUtils]: 5: Hoare triple {123#(= main_~sn~0 0)} assume true; {123#(= main_~sn~0 0)} is VALID [2018-11-18 23:56:59,834 INFO L273 TraceCheckUtils]: 6: Hoare triple {123#(= main_~sn~0 0)} assume !(~i~0 <= ~n~0); {123#(= main_~sn~0 0)} is VALID [2018-11-18 23:56:59,844 INFO L256 TraceCheckUtils]: 7: Hoare triple {123#(= main_~sn~0 0)} call __VERIFIER_assert((if ~sn~0 == 2 * ~n~0 || 0 == ~sn~0 then 1 else 0)); {124#(= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2018-11-18 23:56:59,845 INFO L273 TraceCheckUtils]: 8: Hoare triple {124#(= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {125#(= 1 __VERIFIER_assert_~cond)} is VALID [2018-11-18 23:56:59,849 INFO L273 TraceCheckUtils]: 9: Hoare triple {125#(= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {122#false} is VALID [2018-11-18 23:56:59,849 INFO L273 TraceCheckUtils]: 10: Hoare triple {122#false} assume !false; {122#false} is VALID [2018-11-18 23:56:59,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 23:56:59,851 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 23:56:59,851 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 23:56:59,852 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-18 23:56:59,853 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 23:56:59,854 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-18 23:56:59,896 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 23:56:59,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 23:56:59,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 23:56:59,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 23:56:59,897 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 5 states. [2018-11-18 23:57:00,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:00,216 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2018-11-18 23:57:00,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 23:57:00,217 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-18 23:57:00,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 23:57:00,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 23:57:00,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2018-11-18 23:57:00,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 23:57:00,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2018-11-18 23:57:00,224 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 27 transitions. [2018-11-18 23:57:00,271 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 23:57:00,273 INFO L225 Difference]: With dead ends: 25 [2018-11-18 23:57:00,273 INFO L226 Difference]: Without dead ends: 20 [2018-11-18 23:57:00,274 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 23:57:00,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-18 23:57:00,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-18 23:57:00,293 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 23:57:00,293 INFO L82 GeneralOperation]: Start isEquivalent. First operand 20 states. Second operand 20 states. [2018-11-18 23:57:00,293 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 20 states. [2018-11-18 23:57:00,294 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 20 states. [2018-11-18 23:57:00,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:00,297 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-11-18 23:57:00,298 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-18 23:57:00,298 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:57:00,298 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 23:57:00,299 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 20 states. [2018-11-18 23:57:00,299 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 20 states. [2018-11-18 23:57:00,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:00,301 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-11-18 23:57:00,302 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-18 23:57:00,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:57:00,302 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 23:57:00,303 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 23:57:00,303 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 23:57:00,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-18 23:57:00,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-18 23:57:00,305 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 11 [2018-11-18 23:57:00,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 23:57:00,306 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-18 23:57:00,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 23:57:00,306 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-18 23:57:00,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 23:57:00,307 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 23:57:00,307 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 23:57:00,307 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 23:57:00,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 23:57:00,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1428843034, now seen corresponding path program 1 times [2018-11-18 23:57:00,308 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 23:57:00,308 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 23:57:00,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:57:00,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 23:57:00,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:57:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 23:57:00,979 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-11-18 23:57:01,280 INFO L256 TraceCheckUtils]: 0: Hoare triple {233#true} call ULTIMATE.init(); {233#true} is VALID [2018-11-18 23:57:01,280 INFO L273 TraceCheckUtils]: 1: Hoare triple {233#true} assume true; {233#true} is VALID [2018-11-18 23:57:01,281 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {233#true} {233#true} #40#return; {233#true} is VALID [2018-11-18 23:57:01,281 INFO L256 TraceCheckUtils]: 3: Hoare triple {233#true} call #t~ret3 := main(); {233#true} is VALID [2018-11-18 23:57:01,282 INFO L273 TraceCheckUtils]: 4: Hoare triple {233#true} havoc ~i~0;~j~0 := 10;~n~0 := (if #t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then #t~nondet0 % 4294967296 % 4294967296 else #t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc #t~nondet0;~sn~0 := 0;~i~0 := 1; {235#(and (<= (+ main_~sn~0 2) (* 2 main_~i~0)) (<= (* 2 main_~i~0) (+ main_~sn~0 2)))} is VALID [2018-11-18 23:57:01,283 INFO L273 TraceCheckUtils]: 5: Hoare triple {235#(and (<= (+ main_~sn~0 2) (* 2 main_~i~0)) (<= (* 2 main_~i~0) (+ main_~sn~0 2)))} assume true; {235#(and (<= (+ main_~sn~0 2) (* 2 main_~i~0)) (<= (* 2 main_~i~0) (+ main_~sn~0 2)))} is VALID [2018-11-18 23:57:01,284 INFO L273 TraceCheckUtils]: 6: Hoare triple {235#(and (<= (+ main_~sn~0 2) (* 2 main_~i~0)) (<= (* 2 main_~i~0) (+ main_~sn~0 2)))} assume !!(~i~0 <= ~n~0); {236#(and (<= (* 2 main_~i~0) (+ main_~sn~0 2)) (<= (+ main_~sn~0 2) (* 2 main_~n~0)))} is VALID [2018-11-18 23:57:01,285 INFO L273 TraceCheckUtils]: 7: Hoare triple {236#(and (<= (* 2 main_~i~0) (+ main_~sn~0 2)) (<= (+ main_~sn~0 2) (* 2 main_~n~0)))} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {237#(and (< main_~sn~0 (+ (* 2 main_~n~0) 1)) (or (<= (* 2 main_~i~0) main_~sn~0) (<= (* 2 main_~n~0) main_~sn~0)))} is VALID [2018-11-18 23:57:01,285 INFO L273 TraceCheckUtils]: 8: Hoare triple {237#(and (< main_~sn~0 (+ (* 2 main_~n~0) 1)) (or (<= (* 2 main_~i~0) main_~sn~0) (<= (* 2 main_~n~0) main_~sn~0)))} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {237#(and (< main_~sn~0 (+ (* 2 main_~n~0) 1)) (or (<= (* 2 main_~i~0) main_~sn~0) (<= (* 2 main_~n~0) main_~sn~0)))} is VALID [2018-11-18 23:57:01,287 INFO L273 TraceCheckUtils]: 9: Hoare triple {237#(and (< main_~sn~0 (+ (* 2 main_~n~0) 1)) (or (<= (* 2 main_~i~0) main_~sn~0) (<= (* 2 main_~n~0) main_~sn~0)))} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {238#(and (< main_~sn~0 (+ (* 2 main_~n~0) 1)) (or (<= (* 2 main_~n~0) main_~sn~0) (<= (* 2 main_~i~0) (+ main_~sn~0 2))))} is VALID [2018-11-18 23:57:01,288 INFO L273 TraceCheckUtils]: 10: Hoare triple {238#(and (< main_~sn~0 (+ (* 2 main_~n~0) 1)) (or (<= (* 2 main_~n~0) main_~sn~0) (<= (* 2 main_~i~0) (+ main_~sn~0 2))))} assume true; {238#(and (< main_~sn~0 (+ (* 2 main_~n~0) 1)) (or (<= (* 2 main_~n~0) main_~sn~0) (<= (* 2 main_~i~0) (+ main_~sn~0 2))))} is VALID [2018-11-18 23:57:01,289 INFO L273 TraceCheckUtils]: 11: Hoare triple {238#(and (< main_~sn~0 (+ (* 2 main_~n~0) 1)) (or (<= (* 2 main_~n~0) main_~sn~0) (<= (* 2 main_~i~0) (+ main_~sn~0 2))))} assume !(~i~0 <= ~n~0); {239#(and (<= (* 2 main_~n~0) main_~sn~0) (< main_~sn~0 (+ (* 2 main_~n~0) 1)))} is VALID [2018-11-18 23:57:01,292 INFO L256 TraceCheckUtils]: 12: Hoare triple {239#(and (<= (* 2 main_~n~0) main_~sn~0) (< main_~sn~0 (+ (* 2 main_~n~0) 1)))} call __VERIFIER_assert((if ~sn~0 == 2 * ~n~0 || 0 == ~sn~0 then 1 else 0)); {240#(= |__VERIFIER_assert_#in~cond| 1)} is VALID [2018-11-18 23:57:01,293 INFO L273 TraceCheckUtils]: 13: Hoare triple {240#(= |__VERIFIER_assert_#in~cond| 1)} ~cond := #in~cond; {241#(= __VERIFIER_assert_~cond 1)} is VALID [2018-11-18 23:57:01,296 INFO L273 TraceCheckUtils]: 14: Hoare triple {241#(= __VERIFIER_assert_~cond 1)} assume 0 == ~cond; {234#false} is VALID [2018-11-18 23:57:01,297 INFO L273 TraceCheckUtils]: 15: Hoare triple {234#false} assume !false; {234#false} is VALID [2018-11-18 23:57:01,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 23:57:01,301 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 23:57:01,301 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 23:57:01,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 23:57:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 23:57:01,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 23:57:01,353 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 23:57:01,999 INFO L256 TraceCheckUtils]: 0: Hoare triple {233#true} call ULTIMATE.init(); {233#true} is VALID [2018-11-18 23:57:02,000 INFO L273 TraceCheckUtils]: 1: Hoare triple {233#true} assume true; {233#true} is VALID [2018-11-18 23:57:02,000 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {233#true} {233#true} #40#return; {233#true} is VALID [2018-11-18 23:57:02,000 INFO L256 TraceCheckUtils]: 3: Hoare triple {233#true} call #t~ret3 := main(); {233#true} is VALID [2018-11-18 23:57:02,010 INFO L273 TraceCheckUtils]: 4: Hoare triple {233#true} havoc ~i~0;~j~0 := 10;~n~0 := (if #t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then #t~nondet0 % 4294967296 % 4294967296 else #t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc #t~nondet0;~sn~0 := 0;~i~0 := 1; {257#(and (= main_~i~0 1) (= 0 main_~sn~0))} is VALID [2018-11-18 23:57:02,022 INFO L273 TraceCheckUtils]: 5: Hoare triple {257#(and (= main_~i~0 1) (= 0 main_~sn~0))} assume true; {257#(and (= main_~i~0 1) (= 0 main_~sn~0))} is VALID [2018-11-18 23:57:02,024 INFO L273 TraceCheckUtils]: 6: Hoare triple {257#(and (= main_~i~0 1) (= 0 main_~sn~0))} assume !!(~i~0 <= ~n~0); {264#(and (<= main_~i~0 main_~n~0) (= main_~i~0 1) (= 0 main_~sn~0))} is VALID [2018-11-18 23:57:02,027 INFO L273 TraceCheckUtils]: 7: Hoare triple {264#(and (<= main_~i~0 main_~n~0) (= main_~i~0 1) (= 0 main_~sn~0))} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {268#(and (<= main_~i~0 main_~n~0) (= main_~i~0 1) (= 2 main_~sn~0))} is VALID [2018-11-18 23:57:02,028 INFO L273 TraceCheckUtils]: 8: Hoare triple {268#(and (<= main_~i~0 main_~n~0) (= main_~i~0 1) (= 2 main_~sn~0))} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {268#(and (<= main_~i~0 main_~n~0) (= main_~i~0 1) (= 2 main_~sn~0))} is VALID [2018-11-18 23:57:02,029 INFO L273 TraceCheckUtils]: 9: Hoare triple {268#(and (<= main_~i~0 main_~n~0) (= main_~i~0 1) (= 2 main_~sn~0))} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {275#(and (<= main_~i~0 2) (<= 1 main_~n~0) (= 2 main_~sn~0))} is VALID [2018-11-18 23:57:02,030 INFO L273 TraceCheckUtils]: 10: Hoare triple {275#(and (<= main_~i~0 2) (<= 1 main_~n~0) (= 2 main_~sn~0))} assume true; {275#(and (<= main_~i~0 2) (<= 1 main_~n~0) (= 2 main_~sn~0))} is VALID [2018-11-18 23:57:02,048 INFO L273 TraceCheckUtils]: 11: Hoare triple {275#(and (<= main_~i~0 2) (<= 1 main_~n~0) (= 2 main_~sn~0))} assume !(~i~0 <= ~n~0); {282#(and (<= 1 main_~n~0) (<= main_~n~0 1) (= 2 main_~sn~0))} is VALID [2018-11-18 23:57:02,058 INFO L256 TraceCheckUtils]: 12: Hoare triple {282#(and (<= 1 main_~n~0) (<= main_~n~0 1) (= 2 main_~sn~0))} call __VERIFIER_assert((if ~sn~0 == 2 * ~n~0 || 0 == ~sn~0 then 1 else 0)); {240#(= |__VERIFIER_assert_#in~cond| 1)} is VALID [2018-11-18 23:57:02,071 INFO L273 TraceCheckUtils]: 13: Hoare triple {240#(= |__VERIFIER_assert_#in~cond| 1)} ~cond := #in~cond; {241#(= __VERIFIER_assert_~cond 1)} is VALID [2018-11-18 23:57:02,082 INFO L273 TraceCheckUtils]: 14: Hoare triple {241#(= __VERIFIER_assert_~cond 1)} assume 0 == ~cond; {234#false} is VALID [2018-11-18 23:57:02,082 INFO L273 TraceCheckUtils]: 15: Hoare triple {234#false} assume !false; {234#false} is VALID [2018-11-18 23:57:02,084 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 23:57:02,113 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 23:57:02,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2018-11-18 23:57:02,114 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2018-11-18 23:57:02,114 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 23:57:02,114 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states. [2018-11-18 23:57:02,189 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 23:57:02,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 23:57:02,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 23:57:02,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2018-11-18 23:57:02,191 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 14 states. [2018-11-18 23:57:03,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:03,016 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2018-11-18 23:57:03,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 23:57:03,016 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2018-11-18 23:57:03,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 23:57:03,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 23:57:03,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 45 transitions. [2018-11-18 23:57:03,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 23:57:03,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 45 transitions. [2018-11-18 23:57:03,023 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 45 transitions. [2018-11-18 23:57:03,140 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 23:57:03,143 INFO L225 Difference]: With dead ends: 45 [2018-11-18 23:57:03,143 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 23:57:03,144 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2018-11-18 23:57:03,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 23:57:03,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2018-11-18 23:57:03,169 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 23:57:03,169 INFO L82 GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand 32 states. [2018-11-18 23:57:03,169 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 32 states. [2018-11-18 23:57:03,170 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 32 states. [2018-11-18 23:57:03,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:03,174 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2018-11-18 23:57:03,174 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2018-11-18 23:57:03,175 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:57:03,175 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 23:57:03,175 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand 39 states. [2018-11-18 23:57:03,175 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 39 states. [2018-11-18 23:57:03,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:03,179 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2018-11-18 23:57:03,179 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2018-11-18 23:57:03,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:57:03,180 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 23:57:03,181 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 23:57:03,181 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 23:57:03,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-18 23:57:03,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2018-11-18 23:57:03,184 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 16 [2018-11-18 23:57:03,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 23:57:03,184 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2018-11-18 23:57:03,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 23:57:03,185 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2018-11-18 23:57:03,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 23:57:03,185 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 23:57:03,186 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 23:57:03,186 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 23:57:03,186 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 23:57:03,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1947322111, now seen corresponding path program 1 times [2018-11-18 23:57:03,187 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 23:57:03,187 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 23:57:03,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:57:03,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 23:57:03,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:57:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 23:57:03,299 INFO L256 TraceCheckUtils]: 0: Hoare triple {482#true} call ULTIMATE.init(); {482#true} is VALID [2018-11-18 23:57:03,300 INFO L273 TraceCheckUtils]: 1: Hoare triple {482#true} assume true; {482#true} is VALID [2018-11-18 23:57:03,300 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {482#true} {482#true} #40#return; {482#true} is VALID [2018-11-18 23:57:03,301 INFO L256 TraceCheckUtils]: 3: Hoare triple {482#true} call #t~ret3 := main(); {482#true} is VALID [2018-11-18 23:57:03,303 INFO L273 TraceCheckUtils]: 4: Hoare triple {482#true} havoc ~i~0;~j~0 := 10;~n~0 := (if #t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then #t~nondet0 % 4294967296 % 4294967296 else #t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc #t~nondet0;~sn~0 := 0;~i~0 := 1; {484#(<= (+ main_~i~0 9) main_~j~0)} is VALID [2018-11-18 23:57:03,303 INFO L273 TraceCheckUtils]: 5: Hoare triple {484#(<= (+ main_~i~0 9) main_~j~0)} assume true; {484#(<= (+ main_~i~0 9) main_~j~0)} is VALID [2018-11-18 23:57:03,305 INFO L273 TraceCheckUtils]: 6: Hoare triple {484#(<= (+ main_~i~0 9) main_~j~0)} assume !!(~i~0 <= ~n~0); {484#(<= (+ main_~i~0 9) main_~j~0)} is VALID [2018-11-18 23:57:03,306 INFO L273 TraceCheckUtils]: 7: Hoare triple {484#(<= (+ main_~i~0 9) main_~j~0)} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {484#(<= (+ main_~i~0 9) main_~j~0)} is VALID [2018-11-18 23:57:03,308 INFO L273 TraceCheckUtils]: 8: Hoare triple {484#(<= (+ main_~i~0 9) main_~j~0)} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {485#(<= (+ main_~i~0 8) main_~j~0)} is VALID [2018-11-18 23:57:03,310 INFO L273 TraceCheckUtils]: 9: Hoare triple {485#(<= (+ main_~i~0 8) main_~j~0)} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {486#(<= (+ main_~i~0 7) main_~j~0)} is VALID [2018-11-18 23:57:03,315 INFO L273 TraceCheckUtils]: 10: Hoare triple {486#(<= (+ main_~i~0 7) main_~j~0)} assume true; {486#(<= (+ main_~i~0 7) main_~j~0)} is VALID [2018-11-18 23:57:03,316 INFO L273 TraceCheckUtils]: 11: Hoare triple {486#(<= (+ main_~i~0 7) main_~j~0)} assume !!(~i~0 <= ~n~0); {486#(<= (+ main_~i~0 7) main_~j~0)} is VALID [2018-11-18 23:57:03,317 INFO L273 TraceCheckUtils]: 12: Hoare triple {486#(<= (+ main_~i~0 7) main_~j~0)} assume !(~i~0 < ~j~0); {483#false} is VALID [2018-11-18 23:57:03,317 INFO L273 TraceCheckUtils]: 13: Hoare triple {483#false} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {483#false} is VALID [2018-11-18 23:57:03,317 INFO L273 TraceCheckUtils]: 14: Hoare triple {483#false} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {483#false} is VALID [2018-11-18 23:57:03,317 INFO L273 TraceCheckUtils]: 15: Hoare triple {483#false} assume true; {483#false} is VALID [2018-11-18 23:57:03,318 INFO L273 TraceCheckUtils]: 16: Hoare triple {483#false} assume !(~i~0 <= ~n~0); {483#false} is VALID [2018-11-18 23:57:03,318 INFO L256 TraceCheckUtils]: 17: Hoare triple {483#false} call __VERIFIER_assert((if ~sn~0 == 2 * ~n~0 || 0 == ~sn~0 then 1 else 0)); {483#false} is VALID [2018-11-18 23:57:03,318 INFO L273 TraceCheckUtils]: 18: Hoare triple {483#false} ~cond := #in~cond; {483#false} is VALID [2018-11-18 23:57:03,319 INFO L273 TraceCheckUtils]: 19: Hoare triple {483#false} assume 0 == ~cond; {483#false} is VALID [2018-11-18 23:57:03,319 INFO L273 TraceCheckUtils]: 20: Hoare triple {483#false} assume !false; {483#false} is VALID [2018-11-18 23:57:03,320 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 23:57:03,321 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 23:57:03,321 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 23:57:03,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 23:57:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 23:57:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 23:57:03,353 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 23:57:03,536 INFO L256 TraceCheckUtils]: 0: Hoare triple {482#true} call ULTIMATE.init(); {482#true} is VALID [2018-11-18 23:57:03,537 INFO L273 TraceCheckUtils]: 1: Hoare triple {482#true} assume true; {482#true} is VALID [2018-11-18 23:57:03,538 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {482#true} {482#true} #40#return; {482#true} is VALID [2018-11-18 23:57:03,538 INFO L256 TraceCheckUtils]: 3: Hoare triple {482#true} call #t~ret3 := main(); {482#true} is VALID [2018-11-18 23:57:03,539 INFO L273 TraceCheckUtils]: 4: Hoare triple {482#true} havoc ~i~0;~j~0 := 10;~n~0 := (if #t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then #t~nondet0 % 4294967296 % 4294967296 else #t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc #t~nondet0;~sn~0 := 0;~i~0 := 1; {502#(and (<= main_~i~0 1) (<= 10 main_~j~0))} is VALID [2018-11-18 23:57:03,540 INFO L273 TraceCheckUtils]: 5: Hoare triple {502#(and (<= main_~i~0 1) (<= 10 main_~j~0))} assume true; {502#(and (<= main_~i~0 1) (<= 10 main_~j~0))} is VALID [2018-11-18 23:57:03,542 INFO L273 TraceCheckUtils]: 6: Hoare triple {502#(and (<= main_~i~0 1) (<= 10 main_~j~0))} assume !!(~i~0 <= ~n~0); {502#(and (<= main_~i~0 1) (<= 10 main_~j~0))} is VALID [2018-11-18 23:57:03,543 INFO L273 TraceCheckUtils]: 7: Hoare triple {502#(and (<= main_~i~0 1) (<= 10 main_~j~0))} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {502#(and (<= main_~i~0 1) (<= 10 main_~j~0))} is VALID [2018-11-18 23:57:03,545 INFO L273 TraceCheckUtils]: 8: Hoare triple {502#(and (<= main_~i~0 1) (<= 10 main_~j~0))} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {515#(and (<= main_~i~0 1) (<= 9 main_~j~0))} is VALID [2018-11-18 23:57:03,546 INFO L273 TraceCheckUtils]: 9: Hoare triple {515#(and (<= main_~i~0 1) (<= 9 main_~j~0))} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {519#(and (<= main_~i~0 2) (<= 9 main_~j~0))} is VALID [2018-11-18 23:57:03,548 INFO L273 TraceCheckUtils]: 10: Hoare triple {519#(and (<= main_~i~0 2) (<= 9 main_~j~0))} assume true; {519#(and (<= main_~i~0 2) (<= 9 main_~j~0))} is VALID [2018-11-18 23:57:03,549 INFO L273 TraceCheckUtils]: 11: Hoare triple {519#(and (<= main_~i~0 2) (<= 9 main_~j~0))} assume !!(~i~0 <= ~n~0); {519#(and (<= main_~i~0 2) (<= 9 main_~j~0))} is VALID [2018-11-18 23:57:03,550 INFO L273 TraceCheckUtils]: 12: Hoare triple {519#(and (<= main_~i~0 2) (<= 9 main_~j~0))} assume !(~i~0 < ~j~0); {483#false} is VALID [2018-11-18 23:57:03,550 INFO L273 TraceCheckUtils]: 13: Hoare triple {483#false} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {483#false} is VALID [2018-11-18 23:57:03,551 INFO L273 TraceCheckUtils]: 14: Hoare triple {483#false} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {483#false} is VALID [2018-11-18 23:57:03,551 INFO L273 TraceCheckUtils]: 15: Hoare triple {483#false} assume true; {483#false} is VALID [2018-11-18 23:57:03,551 INFO L273 TraceCheckUtils]: 16: Hoare triple {483#false} assume !(~i~0 <= ~n~0); {483#false} is VALID [2018-11-18 23:57:03,552 INFO L256 TraceCheckUtils]: 17: Hoare triple {483#false} call __VERIFIER_assert((if ~sn~0 == 2 * ~n~0 || 0 == ~sn~0 then 1 else 0)); {483#false} is VALID [2018-11-18 23:57:03,552 INFO L273 TraceCheckUtils]: 18: Hoare triple {483#false} ~cond := #in~cond; {483#false} is VALID [2018-11-18 23:57:03,552 INFO L273 TraceCheckUtils]: 19: Hoare triple {483#false} assume 0 == ~cond; {483#false} is VALID [2018-11-18 23:57:03,553 INFO L273 TraceCheckUtils]: 20: Hoare triple {483#false} assume !false; {483#false} is VALID [2018-11-18 23:57:03,554 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 23:57:03,578 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 23:57:03,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-11-18 23:57:03,579 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2018-11-18 23:57:03,580 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 23:57:03,580 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2018-11-18 23:57:03,668 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 23:57:03,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 23:57:03,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 23:57:03,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-11-18 23:57:03,669 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 8 states. [2018-11-18 23:57:03,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:03,963 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2018-11-18 23:57:03,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 23:57:03,963 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2018-11-18 23:57:03,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 23:57:03,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-18 23:57:03,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2018-11-18 23:57:03,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-18 23:57:03,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2018-11-18 23:57:03,968 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 38 transitions. [2018-11-18 23:57:04,030 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 23:57:04,031 INFO L225 Difference]: With dead ends: 42 [2018-11-18 23:57:04,031 INFO L226 Difference]: Without dead ends: 27 [2018-11-18 23:57:04,032 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-11-18 23:57:04,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-18 23:57:04,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-18 23:57:04,054 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 23:57:04,054 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand 27 states. [2018-11-18 23:57:04,054 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 27 states. [2018-11-18 23:57:04,055 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 27 states. [2018-11-18 23:57:04,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:04,058 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2018-11-18 23:57:04,058 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-11-18 23:57:04,059 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:57:04,059 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 23:57:04,059 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 27 states. [2018-11-18 23:57:04,059 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 27 states. [2018-11-18 23:57:04,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:04,061 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2018-11-18 23:57:04,061 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-11-18 23:57:04,062 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:57:04,062 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 23:57:04,062 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 23:57:04,063 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 23:57:04,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-18 23:57:04,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-11-18 23:57:04,065 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 21 [2018-11-18 23:57:04,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 23:57:04,065 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-11-18 23:57:04,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 23:57:04,065 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-11-18 23:57:04,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 23:57:04,066 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 23:57:04,067 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 23:57:04,067 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 23:57:04,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 23:57:04,068 INFO L82 PathProgramCache]: Analyzing trace with hash 994455866, now seen corresponding path program 2 times [2018-11-18 23:57:04,068 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 23:57:04,068 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 23:57:04,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:57:04,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 23:57:04,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:57:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 23:57:05,011 INFO L256 TraceCheckUtils]: 0: Hoare triple {699#true} call ULTIMATE.init(); {699#true} is VALID [2018-11-18 23:57:05,011 INFO L273 TraceCheckUtils]: 1: Hoare triple {699#true} assume true; {699#true} is VALID [2018-11-18 23:57:05,012 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {699#true} {699#true} #40#return; {699#true} is VALID [2018-11-18 23:57:05,012 INFO L256 TraceCheckUtils]: 3: Hoare triple {699#true} call #t~ret3 := main(); {699#true} is VALID [2018-11-18 23:57:05,014 INFO L273 TraceCheckUtils]: 4: Hoare triple {699#true} havoc ~i~0;~j~0 := 10;~n~0 := (if #t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then #t~nondet0 % 4294967296 % 4294967296 else #t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc #t~nondet0;~sn~0 := 0;~i~0 := 1; {701#(and (<= (+ main_~sn~0 2) (* 2 main_~i~0)) (<= (* 2 main_~i~0) (+ main_~sn~0 2)))} is VALID [2018-11-18 23:57:05,016 INFO L273 TraceCheckUtils]: 5: Hoare triple {701#(and (<= (+ main_~sn~0 2) (* 2 main_~i~0)) (<= (* 2 main_~i~0) (+ main_~sn~0 2)))} assume true; {701#(and (<= (+ main_~sn~0 2) (* 2 main_~i~0)) (<= (* 2 main_~i~0) (+ main_~sn~0 2)))} is VALID [2018-11-18 23:57:05,017 INFO L273 TraceCheckUtils]: 6: Hoare triple {701#(and (<= (+ main_~sn~0 2) (* 2 main_~i~0)) (<= (* 2 main_~i~0) (+ main_~sn~0 2)))} assume !!(~i~0 <= ~n~0); {701#(and (<= (+ main_~sn~0 2) (* 2 main_~i~0)) (<= (* 2 main_~i~0) (+ main_~sn~0 2)))} is VALID [2018-11-18 23:57:05,018 INFO L273 TraceCheckUtils]: 7: Hoare triple {701#(and (<= (+ main_~sn~0 2) (* 2 main_~i~0)) (<= (* 2 main_~i~0) (+ main_~sn~0 2)))} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {702#(and (<= (* 2 main_~i~0) main_~sn~0) (<= main_~sn~0 (* 2 main_~i~0)))} is VALID [2018-11-18 23:57:05,019 INFO L273 TraceCheckUtils]: 8: Hoare triple {702#(and (<= (* 2 main_~i~0) main_~sn~0) (<= main_~sn~0 (* 2 main_~i~0)))} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {702#(and (<= (* 2 main_~i~0) main_~sn~0) (<= main_~sn~0 (* 2 main_~i~0)))} is VALID [2018-11-18 23:57:05,024 INFO L273 TraceCheckUtils]: 9: Hoare triple {702#(and (<= (* 2 main_~i~0) main_~sn~0) (<= main_~sn~0 (* 2 main_~i~0)))} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {701#(and (<= (+ main_~sn~0 2) (* 2 main_~i~0)) (<= (* 2 main_~i~0) (+ main_~sn~0 2)))} is VALID [2018-11-18 23:57:05,029 INFO L273 TraceCheckUtils]: 10: Hoare triple {701#(and (<= (+ main_~sn~0 2) (* 2 main_~i~0)) (<= (* 2 main_~i~0) (+ main_~sn~0 2)))} assume true; {701#(and (<= (+ main_~sn~0 2) (* 2 main_~i~0)) (<= (* 2 main_~i~0) (+ main_~sn~0 2)))} is VALID [2018-11-18 23:57:05,031 INFO L273 TraceCheckUtils]: 11: Hoare triple {701#(and (<= (+ main_~sn~0 2) (* 2 main_~i~0)) (<= (* 2 main_~i~0) (+ main_~sn~0 2)))} assume !!(~i~0 <= ~n~0); {701#(and (<= (+ main_~sn~0 2) (* 2 main_~i~0)) (<= (* 2 main_~i~0) (+ main_~sn~0 2)))} is VALID [2018-11-18 23:57:05,032 INFO L273 TraceCheckUtils]: 12: Hoare triple {701#(and (<= (+ main_~sn~0 2) (* 2 main_~i~0)) (<= (* 2 main_~i~0) (+ main_~sn~0 2)))} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {702#(and (<= (* 2 main_~i~0) main_~sn~0) (<= main_~sn~0 (* 2 main_~i~0)))} is VALID [2018-11-18 23:57:05,038 INFO L273 TraceCheckUtils]: 13: Hoare triple {702#(and (<= (* 2 main_~i~0) main_~sn~0) (<= main_~sn~0 (* 2 main_~i~0)))} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {702#(and (<= (* 2 main_~i~0) main_~sn~0) (<= main_~sn~0 (* 2 main_~i~0)))} is VALID [2018-11-18 23:57:05,045 INFO L273 TraceCheckUtils]: 14: Hoare triple {702#(and (<= (* 2 main_~i~0) main_~sn~0) (<= main_~sn~0 (* 2 main_~i~0)))} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {701#(and (<= (+ main_~sn~0 2) (* 2 main_~i~0)) (<= (* 2 main_~i~0) (+ main_~sn~0 2)))} is VALID [2018-11-18 23:57:05,046 INFO L273 TraceCheckUtils]: 15: Hoare triple {701#(and (<= (+ main_~sn~0 2) (* 2 main_~i~0)) (<= (* 2 main_~i~0) (+ main_~sn~0 2)))} assume true; {701#(and (<= (+ main_~sn~0 2) (* 2 main_~i~0)) (<= (* 2 main_~i~0) (+ main_~sn~0 2)))} is VALID [2018-11-18 23:57:05,048 INFO L273 TraceCheckUtils]: 16: Hoare triple {701#(and (<= (+ main_~sn~0 2) (* 2 main_~i~0)) (<= (* 2 main_~i~0) (+ main_~sn~0 2)))} assume !!(~i~0 <= ~n~0); {703#(and (<= (* 2 main_~i~0) (+ main_~sn~0 2)) (<= (+ main_~sn~0 2) (* 2 main_~n~0)))} is VALID [2018-11-18 23:57:05,049 INFO L273 TraceCheckUtils]: 17: Hoare triple {703#(and (<= (* 2 main_~i~0) (+ main_~sn~0 2)) (<= (+ main_~sn~0 2) (* 2 main_~n~0)))} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {704#(and (< main_~sn~0 (+ (* 2 main_~n~0) 1)) (or (<= (* 2 main_~i~0) main_~sn~0) (<= (* 2 main_~n~0) main_~sn~0)))} is VALID [2018-11-18 23:57:05,050 INFO L273 TraceCheckUtils]: 18: Hoare triple {704#(and (< main_~sn~0 (+ (* 2 main_~n~0) 1)) (or (<= (* 2 main_~i~0) main_~sn~0) (<= (* 2 main_~n~0) main_~sn~0)))} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {704#(and (< main_~sn~0 (+ (* 2 main_~n~0) 1)) (or (<= (* 2 main_~i~0) main_~sn~0) (<= (* 2 main_~n~0) main_~sn~0)))} is VALID [2018-11-18 23:57:05,051 INFO L273 TraceCheckUtils]: 19: Hoare triple {704#(and (< main_~sn~0 (+ (* 2 main_~n~0) 1)) (or (<= (* 2 main_~i~0) main_~sn~0) (<= (* 2 main_~n~0) main_~sn~0)))} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {705#(and (< main_~sn~0 (+ (* 2 main_~n~0) 1)) (or (<= (* 2 main_~n~0) main_~sn~0) (<= (* 2 main_~i~0) (+ main_~sn~0 2))))} is VALID [2018-11-18 23:57:05,053 INFO L273 TraceCheckUtils]: 20: Hoare triple {705#(and (< main_~sn~0 (+ (* 2 main_~n~0) 1)) (or (<= (* 2 main_~n~0) main_~sn~0) (<= (* 2 main_~i~0) (+ main_~sn~0 2))))} assume true; {705#(and (< main_~sn~0 (+ (* 2 main_~n~0) 1)) (or (<= (* 2 main_~n~0) main_~sn~0) (<= (* 2 main_~i~0) (+ main_~sn~0 2))))} is VALID [2018-11-18 23:57:05,054 INFO L273 TraceCheckUtils]: 21: Hoare triple {705#(and (< main_~sn~0 (+ (* 2 main_~n~0) 1)) (or (<= (* 2 main_~n~0) main_~sn~0) (<= (* 2 main_~i~0) (+ main_~sn~0 2))))} assume !(~i~0 <= ~n~0); {706#(and (<= (* 2 main_~n~0) main_~sn~0) (< main_~sn~0 (+ (* 2 main_~n~0) 1)))} is VALID [2018-11-18 23:57:05,059 INFO L256 TraceCheckUtils]: 22: Hoare triple {706#(and (<= (* 2 main_~n~0) main_~sn~0) (< main_~sn~0 (+ (* 2 main_~n~0) 1)))} call __VERIFIER_assert((if ~sn~0 == 2 * ~n~0 || 0 == ~sn~0 then 1 else 0)); {707#(= |__VERIFIER_assert_#in~cond| 1)} is VALID [2018-11-18 23:57:05,061 INFO L273 TraceCheckUtils]: 23: Hoare triple {707#(= |__VERIFIER_assert_#in~cond| 1)} ~cond := #in~cond; {708#(= __VERIFIER_assert_~cond 1)} is VALID [2018-11-18 23:57:05,061 INFO L273 TraceCheckUtils]: 24: Hoare triple {708#(= __VERIFIER_assert_~cond 1)} assume 0 == ~cond; {700#false} is VALID [2018-11-18 23:57:05,061 INFO L273 TraceCheckUtils]: 25: Hoare triple {700#false} assume !false; {700#false} is VALID [2018-11-18 23:57:05,065 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 23:57:05,065 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 23:57:05,066 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 23:57:05,083 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 23:57:05,102 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 23:57:05,102 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 23:57:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 23:57:05,113 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 23:57:05,613 INFO L256 TraceCheckUtils]: 0: Hoare triple {699#true} call ULTIMATE.init(); {699#true} is VALID [2018-11-18 23:57:05,613 INFO L273 TraceCheckUtils]: 1: Hoare triple {699#true} assume true; {699#true} is VALID [2018-11-18 23:57:05,614 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {699#true} {699#true} #40#return; {699#true} is VALID [2018-11-18 23:57:05,614 INFO L256 TraceCheckUtils]: 3: Hoare triple {699#true} call #t~ret3 := main(); {699#true} is VALID [2018-11-18 23:57:05,615 INFO L273 TraceCheckUtils]: 4: Hoare triple {699#true} havoc ~i~0;~j~0 := 10;~n~0 := (if #t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then #t~nondet0 % 4294967296 % 4294967296 else #t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc #t~nondet0;~sn~0 := 0;~i~0 := 1; {724#(and (= main_~i~0 1) (= 0 main_~sn~0))} is VALID [2018-11-18 23:57:05,616 INFO L273 TraceCheckUtils]: 5: Hoare triple {724#(and (= main_~i~0 1) (= 0 main_~sn~0))} assume true; {724#(and (= main_~i~0 1) (= 0 main_~sn~0))} is VALID [2018-11-18 23:57:05,617 INFO L273 TraceCheckUtils]: 6: Hoare triple {724#(and (= main_~i~0 1) (= 0 main_~sn~0))} assume !!(~i~0 <= ~n~0); {724#(and (= main_~i~0 1) (= 0 main_~sn~0))} is VALID [2018-11-18 23:57:05,623 INFO L273 TraceCheckUtils]: 7: Hoare triple {724#(and (= main_~i~0 1) (= 0 main_~sn~0))} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {734#(and (= main_~i~0 1) (= 2 main_~sn~0))} is VALID [2018-11-18 23:57:05,624 INFO L273 TraceCheckUtils]: 8: Hoare triple {734#(and (= main_~i~0 1) (= 2 main_~sn~0))} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {734#(and (= main_~i~0 1) (= 2 main_~sn~0))} is VALID [2018-11-18 23:57:05,625 INFO L273 TraceCheckUtils]: 9: Hoare triple {734#(and (= main_~i~0 1) (= 2 main_~sn~0))} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {741#(and (= main_~i~0 2) (= 2 main_~sn~0))} is VALID [2018-11-18 23:57:05,625 INFO L273 TraceCheckUtils]: 10: Hoare triple {741#(and (= main_~i~0 2) (= 2 main_~sn~0))} assume true; {741#(and (= main_~i~0 2) (= 2 main_~sn~0))} is VALID [2018-11-18 23:57:05,627 INFO L273 TraceCheckUtils]: 11: Hoare triple {741#(and (= main_~i~0 2) (= 2 main_~sn~0))} assume !!(~i~0 <= ~n~0); {741#(and (= main_~i~0 2) (= 2 main_~sn~0))} is VALID [2018-11-18 23:57:05,628 INFO L273 TraceCheckUtils]: 12: Hoare triple {741#(and (= main_~i~0 2) (= 2 main_~sn~0))} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {751#(and (= 4 main_~sn~0) (= main_~i~0 2))} is VALID [2018-11-18 23:57:05,629 INFO L273 TraceCheckUtils]: 13: Hoare triple {751#(and (= 4 main_~sn~0) (= main_~i~0 2))} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {751#(and (= 4 main_~sn~0) (= main_~i~0 2))} is VALID [2018-11-18 23:57:05,629 INFO L273 TraceCheckUtils]: 14: Hoare triple {751#(and (= 4 main_~sn~0) (= main_~i~0 2))} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {758#(and (= 4 main_~sn~0) (= main_~i~0 3))} is VALID [2018-11-18 23:57:05,630 INFO L273 TraceCheckUtils]: 15: Hoare triple {758#(and (= 4 main_~sn~0) (= main_~i~0 3))} assume true; {758#(and (= 4 main_~sn~0) (= main_~i~0 3))} is VALID [2018-11-18 23:57:05,631 INFO L273 TraceCheckUtils]: 16: Hoare triple {758#(and (= 4 main_~sn~0) (= main_~i~0 3))} assume !!(~i~0 <= ~n~0); {765#(and (= 4 main_~sn~0) (= main_~i~0 3) (<= main_~i~0 main_~n~0))} is VALID [2018-11-18 23:57:05,633 INFO L273 TraceCheckUtils]: 17: Hoare triple {765#(and (= 4 main_~sn~0) (= main_~i~0 3) (<= main_~i~0 main_~n~0))} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {769#(and (= main_~i~0 3) (<= main_~i~0 main_~n~0) (= 6 main_~sn~0))} is VALID [2018-11-18 23:57:05,634 INFO L273 TraceCheckUtils]: 18: Hoare triple {769#(and (= main_~i~0 3) (<= main_~i~0 main_~n~0) (= 6 main_~sn~0))} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {769#(and (= main_~i~0 3) (<= main_~i~0 main_~n~0) (= 6 main_~sn~0))} is VALID [2018-11-18 23:57:05,640 INFO L273 TraceCheckUtils]: 19: Hoare triple {769#(and (= main_~i~0 3) (<= main_~i~0 main_~n~0) (= 6 main_~sn~0))} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {776#(and (<= 3 main_~n~0) (<= main_~i~0 4) (= 6 main_~sn~0))} is VALID [2018-11-18 23:57:05,641 INFO L273 TraceCheckUtils]: 20: Hoare triple {776#(and (<= 3 main_~n~0) (<= main_~i~0 4) (= 6 main_~sn~0))} assume true; {776#(and (<= 3 main_~n~0) (<= main_~i~0 4) (= 6 main_~sn~0))} is VALID [2018-11-18 23:57:05,641 INFO L273 TraceCheckUtils]: 21: Hoare triple {776#(and (<= 3 main_~n~0) (<= main_~i~0 4) (= 6 main_~sn~0))} assume !(~i~0 <= ~n~0); {783#(and (<= 3 main_~n~0) (<= main_~n~0 3) (= 6 main_~sn~0))} is VALID [2018-11-18 23:57:05,642 INFO L256 TraceCheckUtils]: 22: Hoare triple {783#(and (<= 3 main_~n~0) (<= main_~n~0 3) (= 6 main_~sn~0))} call __VERIFIER_assert((if ~sn~0 == 2 * ~n~0 || 0 == ~sn~0 then 1 else 0)); {707#(= |__VERIFIER_assert_#in~cond| 1)} is VALID [2018-11-18 23:57:05,643 INFO L273 TraceCheckUtils]: 23: Hoare triple {707#(= |__VERIFIER_assert_#in~cond| 1)} ~cond := #in~cond; {708#(= __VERIFIER_assert_~cond 1)} is VALID [2018-11-18 23:57:05,643 INFO L273 TraceCheckUtils]: 24: Hoare triple {708#(= __VERIFIER_assert_~cond 1)} assume 0 == ~cond; {700#false} is VALID [2018-11-18 23:57:05,644 INFO L273 TraceCheckUtils]: 25: Hoare triple {700#false} assume !false; {700#false} is VALID [2018-11-18 23:57:05,647 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 23:57:05,667 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 23:57:05,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 19 [2018-11-18 23:57:05,668 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 26 [2018-11-18 23:57:05,668 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 23:57:05,668 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states. [2018-11-18 23:57:05,741 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 23:57:05,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-18 23:57:05,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-18 23:57:05,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2018-11-18 23:57:05,742 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 19 states. [2018-11-18 23:57:07,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:07,284 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2018-11-18 23:57:07,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 23:57:07,284 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 26 [2018-11-18 23:57:07,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 23:57:07,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-18 23:57:07,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 55 transitions. [2018-11-18 23:57:07,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-18 23:57:07,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 55 transitions. [2018-11-18 23:57:07,291 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 55 transitions. [2018-11-18 23:57:07,394 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 55 edges. 55 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 23:57:07,396 INFO L225 Difference]: With dead ends: 50 [2018-11-18 23:57:07,397 INFO L226 Difference]: Without dead ends: 44 [2018-11-18 23:57:07,398 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=155, Invalid=901, Unknown=0, NotChecked=0, Total=1056 [2018-11-18 23:57:07,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-18 23:57:07,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 28. [2018-11-18 23:57:07,425 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 23:57:07,425 INFO L82 GeneralOperation]: Start isEquivalent. First operand 44 states. Second operand 28 states. [2018-11-18 23:57:07,425 INFO L74 IsIncluded]: Start isIncluded. First operand 44 states. Second operand 28 states. [2018-11-18 23:57:07,425 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 28 states. [2018-11-18 23:57:07,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:07,428 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2018-11-18 23:57:07,428 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2018-11-18 23:57:07,429 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:57:07,429 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 23:57:07,429 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand 44 states. [2018-11-18 23:57:07,429 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 44 states. [2018-11-18 23:57:07,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:07,432 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2018-11-18 23:57:07,432 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2018-11-18 23:57:07,433 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:57:07,433 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 23:57:07,433 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 23:57:07,433 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 23:57:07,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-18 23:57:07,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2018-11-18 23:57:07,435 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 26 [2018-11-18 23:57:07,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 23:57:07,436 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2018-11-18 23:57:07,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-18 23:57:07,436 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-11-18 23:57:07,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 23:57:07,437 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 23:57:07,437 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 23:57:07,437 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 23:57:07,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 23:57:07,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1674514236, now seen corresponding path program 2 times [2018-11-18 23:57:07,438 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 23:57:07,438 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 23:57:07,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:57:07,439 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 23:57:07,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:57:07,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 23:57:07,646 INFO L256 TraceCheckUtils]: 0: Hoare triple {1014#true} call ULTIMATE.init(); {1014#true} is VALID [2018-11-18 23:57:07,647 INFO L273 TraceCheckUtils]: 1: Hoare triple {1014#true} assume true; {1014#true} is VALID [2018-11-18 23:57:07,647 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {1014#true} {1014#true} #40#return; {1014#true} is VALID [2018-11-18 23:57:07,647 INFO L256 TraceCheckUtils]: 3: Hoare triple {1014#true} call #t~ret3 := main(); {1014#true} is VALID [2018-11-18 23:57:07,649 INFO L273 TraceCheckUtils]: 4: Hoare triple {1014#true} havoc ~i~0;~j~0 := 10;~n~0 := (if #t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then #t~nondet0 % 4294967296 % 4294967296 else #t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc #t~nondet0;~sn~0 := 0;~i~0 := 1; {1016#(<= (+ main_~i~0 9) main_~j~0)} is VALID [2018-11-18 23:57:07,650 INFO L273 TraceCheckUtils]: 5: Hoare triple {1016#(<= (+ main_~i~0 9) main_~j~0)} assume true; {1016#(<= (+ main_~i~0 9) main_~j~0)} is VALID [2018-11-18 23:57:07,651 INFO L273 TraceCheckUtils]: 6: Hoare triple {1016#(<= (+ main_~i~0 9) main_~j~0)} assume !!(~i~0 <= ~n~0); {1016#(<= (+ main_~i~0 9) main_~j~0)} is VALID [2018-11-18 23:57:07,651 INFO L273 TraceCheckUtils]: 7: Hoare triple {1016#(<= (+ main_~i~0 9) main_~j~0)} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {1016#(<= (+ main_~i~0 9) main_~j~0)} is VALID [2018-11-18 23:57:07,653 INFO L273 TraceCheckUtils]: 8: Hoare triple {1016#(<= (+ main_~i~0 9) main_~j~0)} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1017#(<= (+ main_~i~0 8) main_~j~0)} is VALID [2018-11-18 23:57:07,654 INFO L273 TraceCheckUtils]: 9: Hoare triple {1017#(<= (+ main_~i~0 8) main_~j~0)} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1018#(<= (+ main_~i~0 7) main_~j~0)} is VALID [2018-11-18 23:57:07,654 INFO L273 TraceCheckUtils]: 10: Hoare triple {1018#(<= (+ main_~i~0 7) main_~j~0)} assume true; {1018#(<= (+ main_~i~0 7) main_~j~0)} is VALID [2018-11-18 23:57:07,655 INFO L273 TraceCheckUtils]: 11: Hoare triple {1018#(<= (+ main_~i~0 7) main_~j~0)} assume !!(~i~0 <= ~n~0); {1018#(<= (+ main_~i~0 7) main_~j~0)} is VALID [2018-11-18 23:57:07,656 INFO L273 TraceCheckUtils]: 12: Hoare triple {1018#(<= (+ main_~i~0 7) main_~j~0)} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {1018#(<= (+ main_~i~0 7) main_~j~0)} is VALID [2018-11-18 23:57:07,657 INFO L273 TraceCheckUtils]: 13: Hoare triple {1018#(<= (+ main_~i~0 7) main_~j~0)} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1019#(<= (+ main_~i~0 6) main_~j~0)} is VALID [2018-11-18 23:57:07,658 INFO L273 TraceCheckUtils]: 14: Hoare triple {1019#(<= (+ main_~i~0 6) main_~j~0)} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1020#(<= (+ main_~i~0 5) main_~j~0)} is VALID [2018-11-18 23:57:07,659 INFO L273 TraceCheckUtils]: 15: Hoare triple {1020#(<= (+ main_~i~0 5) main_~j~0)} assume true; {1020#(<= (+ main_~i~0 5) main_~j~0)} is VALID [2018-11-18 23:57:07,660 INFO L273 TraceCheckUtils]: 16: Hoare triple {1020#(<= (+ main_~i~0 5) main_~j~0)} assume !!(~i~0 <= ~n~0); {1020#(<= (+ main_~i~0 5) main_~j~0)} is VALID [2018-11-18 23:57:07,661 INFO L273 TraceCheckUtils]: 17: Hoare triple {1020#(<= (+ main_~i~0 5) main_~j~0)} assume !(~i~0 < ~j~0); {1015#false} is VALID [2018-11-18 23:57:07,661 INFO L273 TraceCheckUtils]: 18: Hoare triple {1015#false} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1015#false} is VALID [2018-11-18 23:57:07,661 INFO L273 TraceCheckUtils]: 19: Hoare triple {1015#false} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1015#false} is VALID [2018-11-18 23:57:07,662 INFO L273 TraceCheckUtils]: 20: Hoare triple {1015#false} assume true; {1015#false} is VALID [2018-11-18 23:57:07,662 INFO L273 TraceCheckUtils]: 21: Hoare triple {1015#false} assume !(~i~0 <= ~n~0); {1015#false} is VALID [2018-11-18 23:57:07,662 INFO L256 TraceCheckUtils]: 22: Hoare triple {1015#false} call __VERIFIER_assert((if ~sn~0 == 2 * ~n~0 || 0 == ~sn~0 then 1 else 0)); {1015#false} is VALID [2018-11-18 23:57:07,663 INFO L273 TraceCheckUtils]: 23: Hoare triple {1015#false} ~cond := #in~cond; {1015#false} is VALID [2018-11-18 23:57:07,663 INFO L273 TraceCheckUtils]: 24: Hoare triple {1015#false} assume 0 == ~cond; {1015#false} is VALID [2018-11-18 23:57:07,663 INFO L273 TraceCheckUtils]: 25: Hoare triple {1015#false} assume !false; {1015#false} is VALID [2018-11-18 23:57:07,666 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 23:57:07,666 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 23:57:07,666 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 23:57:07,699 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 23:57:07,714 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 23:57:07,714 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 23:57:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 23:57:07,736 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 23:57:08,366 INFO L256 TraceCheckUtils]: 0: Hoare triple {1014#true} call ULTIMATE.init(); {1014#true} is VALID [2018-11-18 23:57:08,366 INFO L273 TraceCheckUtils]: 1: Hoare triple {1014#true} assume true; {1014#true} is VALID [2018-11-18 23:57:08,366 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {1014#true} {1014#true} #40#return; {1014#true} is VALID [2018-11-18 23:57:08,367 INFO L256 TraceCheckUtils]: 3: Hoare triple {1014#true} call #t~ret3 := main(); {1014#true} is VALID [2018-11-18 23:57:08,368 INFO L273 TraceCheckUtils]: 4: Hoare triple {1014#true} havoc ~i~0;~j~0 := 10;~n~0 := (if #t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then #t~nondet0 % 4294967296 % 4294967296 else #t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc #t~nondet0;~sn~0 := 0;~i~0 := 1; {1036#(and (<= main_~i~0 1) (<= 10 main_~j~0))} is VALID [2018-11-18 23:57:08,368 INFO L273 TraceCheckUtils]: 5: Hoare triple {1036#(and (<= main_~i~0 1) (<= 10 main_~j~0))} assume true; {1036#(and (<= main_~i~0 1) (<= 10 main_~j~0))} is VALID [2018-11-18 23:57:08,370 INFO L273 TraceCheckUtils]: 6: Hoare triple {1036#(and (<= main_~i~0 1) (<= 10 main_~j~0))} assume !!(~i~0 <= ~n~0); {1036#(and (<= main_~i~0 1) (<= 10 main_~j~0))} is VALID [2018-11-18 23:57:08,371 INFO L273 TraceCheckUtils]: 7: Hoare triple {1036#(and (<= main_~i~0 1) (<= 10 main_~j~0))} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {1036#(and (<= main_~i~0 1) (<= 10 main_~j~0))} is VALID [2018-11-18 23:57:08,371 INFO L273 TraceCheckUtils]: 8: Hoare triple {1036#(and (<= main_~i~0 1) (<= 10 main_~j~0))} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1049#(and (<= main_~i~0 1) (<= 9 main_~j~0))} is VALID [2018-11-18 23:57:08,372 INFO L273 TraceCheckUtils]: 9: Hoare triple {1049#(and (<= main_~i~0 1) (<= 9 main_~j~0))} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1053#(and (<= main_~i~0 2) (<= 9 main_~j~0))} is VALID [2018-11-18 23:57:08,372 INFO L273 TraceCheckUtils]: 10: Hoare triple {1053#(and (<= main_~i~0 2) (<= 9 main_~j~0))} assume true; {1053#(and (<= main_~i~0 2) (<= 9 main_~j~0))} is VALID [2018-11-18 23:57:08,373 INFO L273 TraceCheckUtils]: 11: Hoare triple {1053#(and (<= main_~i~0 2) (<= 9 main_~j~0))} assume !!(~i~0 <= ~n~0); {1053#(and (<= main_~i~0 2) (<= 9 main_~j~0))} is VALID [2018-11-18 23:57:08,373 INFO L273 TraceCheckUtils]: 12: Hoare triple {1053#(and (<= main_~i~0 2) (<= 9 main_~j~0))} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {1053#(and (<= main_~i~0 2) (<= 9 main_~j~0))} is VALID [2018-11-18 23:57:08,374 INFO L273 TraceCheckUtils]: 13: Hoare triple {1053#(and (<= main_~i~0 2) (<= 9 main_~j~0))} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1066#(and (<= 8 main_~j~0) (<= main_~i~0 2))} is VALID [2018-11-18 23:57:08,375 INFO L273 TraceCheckUtils]: 14: Hoare triple {1066#(and (<= 8 main_~j~0) (<= main_~i~0 2))} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1070#(and (<= main_~i~0 3) (<= 8 main_~j~0))} is VALID [2018-11-18 23:57:08,375 INFO L273 TraceCheckUtils]: 15: Hoare triple {1070#(and (<= main_~i~0 3) (<= 8 main_~j~0))} assume true; {1070#(and (<= main_~i~0 3) (<= 8 main_~j~0))} is VALID [2018-11-18 23:57:08,376 INFO L273 TraceCheckUtils]: 16: Hoare triple {1070#(and (<= main_~i~0 3) (<= 8 main_~j~0))} assume !!(~i~0 <= ~n~0); {1070#(and (<= main_~i~0 3) (<= 8 main_~j~0))} is VALID [2018-11-18 23:57:08,377 INFO L273 TraceCheckUtils]: 17: Hoare triple {1070#(and (<= main_~i~0 3) (<= 8 main_~j~0))} assume !(~i~0 < ~j~0); {1015#false} is VALID [2018-11-18 23:57:08,377 INFO L273 TraceCheckUtils]: 18: Hoare triple {1015#false} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1015#false} is VALID [2018-11-18 23:57:08,378 INFO L273 TraceCheckUtils]: 19: Hoare triple {1015#false} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1015#false} is VALID [2018-11-18 23:57:08,378 INFO L273 TraceCheckUtils]: 20: Hoare triple {1015#false} assume true; {1015#false} is VALID [2018-11-18 23:57:08,379 INFO L273 TraceCheckUtils]: 21: Hoare triple {1015#false} assume !(~i~0 <= ~n~0); {1015#false} is VALID [2018-11-18 23:57:08,379 INFO L256 TraceCheckUtils]: 22: Hoare triple {1015#false} call __VERIFIER_assert((if ~sn~0 == 2 * ~n~0 || 0 == ~sn~0 then 1 else 0)); {1015#false} is VALID [2018-11-18 23:57:08,379 INFO L273 TraceCheckUtils]: 23: Hoare triple {1015#false} ~cond := #in~cond; {1015#false} is VALID [2018-11-18 23:57:08,380 INFO L273 TraceCheckUtils]: 24: Hoare triple {1015#false} assume 0 == ~cond; {1015#false} is VALID [2018-11-18 23:57:08,380 INFO L273 TraceCheckUtils]: 25: Hoare triple {1015#false} assume !false; {1015#false} is VALID [2018-11-18 23:57:08,382 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 23:57:08,412 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 23:57:08,413 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-11-18 23:57:08,413 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2018-11-18 23:57:08,413 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 23:57:08,413 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states. [2018-11-18 23:57:08,535 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 23:57:08,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 23:57:08,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 23:57:08,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2018-11-18 23:57:08,537 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 12 states. [2018-11-18 23:57:08,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:08,719 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2018-11-18 23:57:08,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 23:57:08,720 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2018-11-18 23:57:08,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 23:57:08,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-18 23:57:08,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 42 transitions. [2018-11-18 23:57:08,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-18 23:57:08,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 42 transitions. [2018-11-18 23:57:08,724 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 42 transitions. [2018-11-18 23:57:08,914 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 23:57:08,916 INFO L225 Difference]: With dead ends: 44 [2018-11-18 23:57:08,917 INFO L226 Difference]: Without dead ends: 34 [2018-11-18 23:57:08,917 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2018-11-18 23:57:08,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-18 23:57:08,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2018-11-18 23:57:08,972 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 23:57:08,972 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand 33 states. [2018-11-18 23:57:08,973 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 33 states. [2018-11-18 23:57:08,973 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 33 states. [2018-11-18 23:57:08,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:08,975 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-11-18 23:57:08,975 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-11-18 23:57:08,976 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:57:08,976 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 23:57:08,976 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 34 states. [2018-11-18 23:57:08,976 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 34 states. [2018-11-18 23:57:08,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:08,978 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-11-18 23:57:08,978 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-11-18 23:57:08,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:57:08,978 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 23:57:08,979 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 23:57:08,979 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 23:57:08,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-18 23:57:08,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2018-11-18 23:57:08,980 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 26 [2018-11-18 23:57:08,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 23:57:08,981 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2018-11-18 23:57:08,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 23:57:08,981 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-11-18 23:57:08,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 23:57:08,982 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 23:57:08,982 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 23:57:08,982 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 23:57:08,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 23:57:08,982 INFO L82 PathProgramCache]: Analyzing trace with hash 162653665, now seen corresponding path program 3 times [2018-11-18 23:57:08,983 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 23:57:08,983 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 23:57:08,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:57:08,984 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 23:57:08,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:57:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 23:57:09,201 INFO L256 TraceCheckUtils]: 0: Hoare triple {1273#true} call ULTIMATE.init(); {1273#true} is VALID [2018-11-18 23:57:09,202 INFO L273 TraceCheckUtils]: 1: Hoare triple {1273#true} assume true; {1273#true} is VALID [2018-11-18 23:57:09,203 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {1273#true} {1273#true} #40#return; {1273#true} is VALID [2018-11-18 23:57:09,203 INFO L256 TraceCheckUtils]: 3: Hoare triple {1273#true} call #t~ret3 := main(); {1273#true} is VALID [2018-11-18 23:57:09,210 INFO L273 TraceCheckUtils]: 4: Hoare triple {1273#true} havoc ~i~0;~j~0 := 10;~n~0 := (if #t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then #t~nondet0 % 4294967296 % 4294967296 else #t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc #t~nondet0;~sn~0 := 0;~i~0 := 1; {1275#(<= (+ main_~i~0 9) main_~j~0)} is VALID [2018-11-18 23:57:09,210 INFO L273 TraceCheckUtils]: 5: Hoare triple {1275#(<= (+ main_~i~0 9) main_~j~0)} assume true; {1275#(<= (+ main_~i~0 9) main_~j~0)} is VALID [2018-11-18 23:57:09,211 INFO L273 TraceCheckUtils]: 6: Hoare triple {1275#(<= (+ main_~i~0 9) main_~j~0)} assume !!(~i~0 <= ~n~0); {1275#(<= (+ main_~i~0 9) main_~j~0)} is VALID [2018-11-18 23:57:09,211 INFO L273 TraceCheckUtils]: 7: Hoare triple {1275#(<= (+ main_~i~0 9) main_~j~0)} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {1275#(<= (+ main_~i~0 9) main_~j~0)} is VALID [2018-11-18 23:57:09,212 INFO L273 TraceCheckUtils]: 8: Hoare triple {1275#(<= (+ main_~i~0 9) main_~j~0)} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1276#(<= (+ main_~i~0 8) main_~j~0)} is VALID [2018-11-18 23:57:09,212 INFO L273 TraceCheckUtils]: 9: Hoare triple {1276#(<= (+ main_~i~0 8) main_~j~0)} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1277#(<= (+ main_~i~0 7) main_~j~0)} is VALID [2018-11-18 23:57:09,213 INFO L273 TraceCheckUtils]: 10: Hoare triple {1277#(<= (+ main_~i~0 7) main_~j~0)} assume true; {1277#(<= (+ main_~i~0 7) main_~j~0)} is VALID [2018-11-18 23:57:09,213 INFO L273 TraceCheckUtils]: 11: Hoare triple {1277#(<= (+ main_~i~0 7) main_~j~0)} assume !!(~i~0 <= ~n~0); {1277#(<= (+ main_~i~0 7) main_~j~0)} is VALID [2018-11-18 23:57:09,214 INFO L273 TraceCheckUtils]: 12: Hoare triple {1277#(<= (+ main_~i~0 7) main_~j~0)} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {1277#(<= (+ main_~i~0 7) main_~j~0)} is VALID [2018-11-18 23:57:09,221 INFO L273 TraceCheckUtils]: 13: Hoare triple {1277#(<= (+ main_~i~0 7) main_~j~0)} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1278#(<= (+ main_~i~0 6) main_~j~0)} is VALID [2018-11-18 23:57:09,222 INFO L273 TraceCheckUtils]: 14: Hoare triple {1278#(<= (+ main_~i~0 6) main_~j~0)} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1279#(<= (+ main_~i~0 5) main_~j~0)} is VALID [2018-11-18 23:57:09,224 INFO L273 TraceCheckUtils]: 15: Hoare triple {1279#(<= (+ main_~i~0 5) main_~j~0)} assume true; {1279#(<= (+ main_~i~0 5) main_~j~0)} is VALID [2018-11-18 23:57:09,225 INFO L273 TraceCheckUtils]: 16: Hoare triple {1279#(<= (+ main_~i~0 5) main_~j~0)} assume !!(~i~0 <= ~n~0); {1279#(<= (+ main_~i~0 5) main_~j~0)} is VALID [2018-11-18 23:57:09,226 INFO L273 TraceCheckUtils]: 17: Hoare triple {1279#(<= (+ main_~i~0 5) main_~j~0)} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {1279#(<= (+ main_~i~0 5) main_~j~0)} is VALID [2018-11-18 23:57:09,228 INFO L273 TraceCheckUtils]: 18: Hoare triple {1279#(<= (+ main_~i~0 5) main_~j~0)} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1280#(<= (+ main_~i~0 4) main_~j~0)} is VALID [2018-11-18 23:57:09,229 INFO L273 TraceCheckUtils]: 19: Hoare triple {1280#(<= (+ main_~i~0 4) main_~j~0)} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1281#(<= (+ main_~i~0 3) main_~j~0)} is VALID [2018-11-18 23:57:09,229 INFO L273 TraceCheckUtils]: 20: Hoare triple {1281#(<= (+ main_~i~0 3) main_~j~0)} assume true; {1281#(<= (+ main_~i~0 3) main_~j~0)} is VALID [2018-11-18 23:57:09,229 INFO L273 TraceCheckUtils]: 21: Hoare triple {1281#(<= (+ main_~i~0 3) main_~j~0)} assume !!(~i~0 <= ~n~0); {1281#(<= (+ main_~i~0 3) main_~j~0)} is VALID [2018-11-18 23:57:09,230 INFO L273 TraceCheckUtils]: 22: Hoare triple {1281#(<= (+ main_~i~0 3) main_~j~0)} assume !(~i~0 < ~j~0); {1274#false} is VALID [2018-11-18 23:57:09,231 INFO L273 TraceCheckUtils]: 23: Hoare triple {1274#false} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1274#false} is VALID [2018-11-18 23:57:09,231 INFO L273 TraceCheckUtils]: 24: Hoare triple {1274#false} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1274#false} is VALID [2018-11-18 23:57:09,231 INFO L273 TraceCheckUtils]: 25: Hoare triple {1274#false} assume true; {1274#false} is VALID [2018-11-18 23:57:09,232 INFO L273 TraceCheckUtils]: 26: Hoare triple {1274#false} assume !(~i~0 <= ~n~0); {1274#false} is VALID [2018-11-18 23:57:09,232 INFO L256 TraceCheckUtils]: 27: Hoare triple {1274#false} call __VERIFIER_assert((if ~sn~0 == 2 * ~n~0 || 0 == ~sn~0 then 1 else 0)); {1274#false} is VALID [2018-11-18 23:57:09,232 INFO L273 TraceCheckUtils]: 28: Hoare triple {1274#false} ~cond := #in~cond; {1274#false} is VALID [2018-11-18 23:57:09,232 INFO L273 TraceCheckUtils]: 29: Hoare triple {1274#false} assume 0 == ~cond; {1274#false} is VALID [2018-11-18 23:57:09,233 INFO L273 TraceCheckUtils]: 30: Hoare triple {1274#false} assume !false; {1274#false} is VALID [2018-11-18 23:57:09,234 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 14 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 23:57:09,234 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 23:57:09,234 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 23:57:09,243 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 23:57:09,261 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-11-18 23:57:09,261 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 23:57:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 23:57:09,270 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 23:57:09,563 INFO L256 TraceCheckUtils]: 0: Hoare triple {1273#true} call ULTIMATE.init(); {1273#true} is VALID [2018-11-18 23:57:09,563 INFO L273 TraceCheckUtils]: 1: Hoare triple {1273#true} assume true; {1273#true} is VALID [2018-11-18 23:57:09,564 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {1273#true} {1273#true} #40#return; {1273#true} is VALID [2018-11-18 23:57:09,564 INFO L256 TraceCheckUtils]: 3: Hoare triple {1273#true} call #t~ret3 := main(); {1273#true} is VALID [2018-11-18 23:57:09,566 INFO L273 TraceCheckUtils]: 4: Hoare triple {1273#true} havoc ~i~0;~j~0 := 10;~n~0 := (if #t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then #t~nondet0 % 4294967296 % 4294967296 else #t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc #t~nondet0;~sn~0 := 0;~i~0 := 1; {1297#(and (<= main_~i~0 1) (<= 10 main_~j~0))} is VALID [2018-11-18 23:57:09,567 INFO L273 TraceCheckUtils]: 5: Hoare triple {1297#(and (<= main_~i~0 1) (<= 10 main_~j~0))} assume true; {1297#(and (<= main_~i~0 1) (<= 10 main_~j~0))} is VALID [2018-11-18 23:57:09,567 INFO L273 TraceCheckUtils]: 6: Hoare triple {1297#(and (<= main_~i~0 1) (<= 10 main_~j~0))} assume !!(~i~0 <= ~n~0); {1297#(and (<= main_~i~0 1) (<= 10 main_~j~0))} is VALID [2018-11-18 23:57:09,568 INFO L273 TraceCheckUtils]: 7: Hoare triple {1297#(and (<= main_~i~0 1) (<= 10 main_~j~0))} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {1297#(and (<= main_~i~0 1) (<= 10 main_~j~0))} is VALID [2018-11-18 23:57:09,569 INFO L273 TraceCheckUtils]: 8: Hoare triple {1297#(and (<= main_~i~0 1) (<= 10 main_~j~0))} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1310#(and (<= main_~i~0 1) (<= 9 main_~j~0))} is VALID [2018-11-18 23:57:09,569 INFO L273 TraceCheckUtils]: 9: Hoare triple {1310#(and (<= main_~i~0 1) (<= 9 main_~j~0))} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1314#(and (<= main_~i~0 2) (<= 9 main_~j~0))} is VALID [2018-11-18 23:57:09,570 INFO L273 TraceCheckUtils]: 10: Hoare triple {1314#(and (<= main_~i~0 2) (<= 9 main_~j~0))} assume true; {1314#(and (<= main_~i~0 2) (<= 9 main_~j~0))} is VALID [2018-11-18 23:57:09,570 INFO L273 TraceCheckUtils]: 11: Hoare triple {1314#(and (<= main_~i~0 2) (<= 9 main_~j~0))} assume !!(~i~0 <= ~n~0); {1314#(and (<= main_~i~0 2) (<= 9 main_~j~0))} is VALID [2018-11-18 23:57:09,571 INFO L273 TraceCheckUtils]: 12: Hoare triple {1314#(and (<= main_~i~0 2) (<= 9 main_~j~0))} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {1314#(and (<= main_~i~0 2) (<= 9 main_~j~0))} is VALID [2018-11-18 23:57:09,573 INFO L273 TraceCheckUtils]: 13: Hoare triple {1314#(and (<= main_~i~0 2) (<= 9 main_~j~0))} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1327#(and (<= 8 main_~j~0) (<= main_~i~0 2))} is VALID [2018-11-18 23:57:09,574 INFO L273 TraceCheckUtils]: 14: Hoare triple {1327#(and (<= 8 main_~j~0) (<= main_~i~0 2))} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1331#(and (<= main_~i~0 3) (<= 8 main_~j~0))} is VALID [2018-11-18 23:57:09,576 INFO L273 TraceCheckUtils]: 15: Hoare triple {1331#(and (<= main_~i~0 3) (<= 8 main_~j~0))} assume true; {1331#(and (<= main_~i~0 3) (<= 8 main_~j~0))} is VALID [2018-11-18 23:57:09,577 INFO L273 TraceCheckUtils]: 16: Hoare triple {1331#(and (<= main_~i~0 3) (<= 8 main_~j~0))} assume !!(~i~0 <= ~n~0); {1331#(and (<= main_~i~0 3) (<= 8 main_~j~0))} is VALID [2018-11-18 23:57:09,578 INFO L273 TraceCheckUtils]: 17: Hoare triple {1331#(and (<= main_~i~0 3) (<= 8 main_~j~0))} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {1331#(and (<= main_~i~0 3) (<= 8 main_~j~0))} is VALID [2018-11-18 23:57:09,579 INFO L273 TraceCheckUtils]: 18: Hoare triple {1331#(and (<= main_~i~0 3) (<= 8 main_~j~0))} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1344#(and (<= main_~i~0 3) (<= 7 main_~j~0))} is VALID [2018-11-18 23:57:09,581 INFO L273 TraceCheckUtils]: 19: Hoare triple {1344#(and (<= main_~i~0 3) (<= 7 main_~j~0))} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1348#(and (<= 7 main_~j~0) (<= main_~i~0 4))} is VALID [2018-11-18 23:57:09,581 INFO L273 TraceCheckUtils]: 20: Hoare triple {1348#(and (<= 7 main_~j~0) (<= main_~i~0 4))} assume true; {1348#(and (<= 7 main_~j~0) (<= main_~i~0 4))} is VALID [2018-11-18 23:57:09,582 INFO L273 TraceCheckUtils]: 21: Hoare triple {1348#(and (<= 7 main_~j~0) (<= main_~i~0 4))} assume !!(~i~0 <= ~n~0); {1348#(and (<= 7 main_~j~0) (<= main_~i~0 4))} is VALID [2018-11-18 23:57:09,582 INFO L273 TraceCheckUtils]: 22: Hoare triple {1348#(and (<= 7 main_~j~0) (<= main_~i~0 4))} assume !(~i~0 < ~j~0); {1274#false} is VALID [2018-11-18 23:57:09,583 INFO L273 TraceCheckUtils]: 23: Hoare triple {1274#false} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1274#false} is VALID [2018-11-18 23:57:09,583 INFO L273 TraceCheckUtils]: 24: Hoare triple {1274#false} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1274#false} is VALID [2018-11-18 23:57:09,584 INFO L273 TraceCheckUtils]: 25: Hoare triple {1274#false} assume true; {1274#false} is VALID [2018-11-18 23:57:09,584 INFO L273 TraceCheckUtils]: 26: Hoare triple {1274#false} assume !(~i~0 <= ~n~0); {1274#false} is VALID [2018-11-18 23:57:09,584 INFO L256 TraceCheckUtils]: 27: Hoare triple {1274#false} call __VERIFIER_assert((if ~sn~0 == 2 * ~n~0 || 0 == ~sn~0 then 1 else 0)); {1274#false} is VALID [2018-11-18 23:57:09,585 INFO L273 TraceCheckUtils]: 28: Hoare triple {1274#false} ~cond := #in~cond; {1274#false} is VALID [2018-11-18 23:57:09,585 INFO L273 TraceCheckUtils]: 29: Hoare triple {1274#false} assume 0 == ~cond; {1274#false} is VALID [2018-11-18 23:57:09,585 INFO L273 TraceCheckUtils]: 30: Hoare triple {1274#false} assume !false; {1274#false} is VALID [2018-11-18 23:57:09,588 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 14 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 23:57:09,618 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 23:57:09,618 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-11-18 23:57:09,619 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 31 [2018-11-18 23:57:09,619 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 23:57:09,619 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states. [2018-11-18 23:57:09,679 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 23:57:09,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 23:57:09,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 23:57:09,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2018-11-18 23:57:09,681 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 16 states. [2018-11-18 23:57:09,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:09,929 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2018-11-18 23:57:09,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 23:57:09,930 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 31 [2018-11-18 23:57:09,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 23:57:09,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 23:57:09,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 47 transitions. [2018-11-18 23:57:09,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 23:57:09,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 47 transitions. [2018-11-18 23:57:09,934 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 47 transitions. [2018-11-18 23:57:10,000 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 23:57:10,002 INFO L225 Difference]: With dead ends: 49 [2018-11-18 23:57:10,002 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 23:57:10,004 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2018-11-18 23:57:10,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 23:57:10,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2018-11-18 23:57:10,036 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 23:57:10,036 INFO L82 GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand 38 states. [2018-11-18 23:57:10,037 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 38 states. [2018-11-18 23:57:10,037 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 38 states. [2018-11-18 23:57:10,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:10,040 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2018-11-18 23:57:10,040 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2018-11-18 23:57:10,040 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:57:10,040 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 23:57:10,041 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 39 states. [2018-11-18 23:57:10,041 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 39 states. [2018-11-18 23:57:10,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:10,043 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2018-11-18 23:57:10,044 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2018-11-18 23:57:10,044 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:57:10,044 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 23:57:10,044 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 23:57:10,044 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 23:57:10,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 23:57:10,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2018-11-18 23:57:10,046 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 31 [2018-11-18 23:57:10,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 23:57:10,046 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2018-11-18 23:57:10,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 23:57:10,047 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2018-11-18 23:57:10,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 23:57:10,047 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 23:57:10,048 INFO L375 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 23:57:10,048 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 23:57:10,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 23:57:10,048 INFO L82 PathProgramCache]: Analyzing trace with hash 129265244, now seen corresponding path program 4 times [2018-11-18 23:57:10,048 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 23:57:10,048 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 23:57:10,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:57:10,049 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 23:57:10,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:57:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 23:57:10,403 INFO L256 TraceCheckUtils]: 0: Hoare triple {1573#true} call ULTIMATE.init(); {1573#true} is VALID [2018-11-18 23:57:10,403 INFO L273 TraceCheckUtils]: 1: Hoare triple {1573#true} assume true; {1573#true} is VALID [2018-11-18 23:57:10,403 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {1573#true} {1573#true} #40#return; {1573#true} is VALID [2018-11-18 23:57:10,404 INFO L256 TraceCheckUtils]: 3: Hoare triple {1573#true} call #t~ret3 := main(); {1573#true} is VALID [2018-11-18 23:57:10,405 INFO L273 TraceCheckUtils]: 4: Hoare triple {1573#true} havoc ~i~0;~j~0 := 10;~n~0 := (if #t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then #t~nondet0 % 4294967296 % 4294967296 else #t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc #t~nondet0;~sn~0 := 0;~i~0 := 1; {1575#(<= (+ main_~i~0 9) main_~j~0)} is VALID [2018-11-18 23:57:10,405 INFO L273 TraceCheckUtils]: 5: Hoare triple {1575#(<= (+ main_~i~0 9) main_~j~0)} assume true; {1575#(<= (+ main_~i~0 9) main_~j~0)} is VALID [2018-11-18 23:57:10,407 INFO L273 TraceCheckUtils]: 6: Hoare triple {1575#(<= (+ main_~i~0 9) main_~j~0)} assume !!(~i~0 <= ~n~0); {1575#(<= (+ main_~i~0 9) main_~j~0)} is VALID [2018-11-18 23:57:10,407 INFO L273 TraceCheckUtils]: 7: Hoare triple {1575#(<= (+ main_~i~0 9) main_~j~0)} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {1575#(<= (+ main_~i~0 9) main_~j~0)} is VALID [2018-11-18 23:57:10,409 INFO L273 TraceCheckUtils]: 8: Hoare triple {1575#(<= (+ main_~i~0 9) main_~j~0)} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1576#(<= (+ main_~i~0 8) main_~j~0)} is VALID [2018-11-18 23:57:10,410 INFO L273 TraceCheckUtils]: 9: Hoare triple {1576#(<= (+ main_~i~0 8) main_~j~0)} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1577#(<= (+ main_~i~0 7) main_~j~0)} is VALID [2018-11-18 23:57:10,411 INFO L273 TraceCheckUtils]: 10: Hoare triple {1577#(<= (+ main_~i~0 7) main_~j~0)} assume true; {1577#(<= (+ main_~i~0 7) main_~j~0)} is VALID [2018-11-18 23:57:10,411 INFO L273 TraceCheckUtils]: 11: Hoare triple {1577#(<= (+ main_~i~0 7) main_~j~0)} assume !!(~i~0 <= ~n~0); {1577#(<= (+ main_~i~0 7) main_~j~0)} is VALID [2018-11-18 23:57:10,412 INFO L273 TraceCheckUtils]: 12: Hoare triple {1577#(<= (+ main_~i~0 7) main_~j~0)} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {1577#(<= (+ main_~i~0 7) main_~j~0)} is VALID [2018-11-18 23:57:10,413 INFO L273 TraceCheckUtils]: 13: Hoare triple {1577#(<= (+ main_~i~0 7) main_~j~0)} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1578#(<= (+ main_~i~0 6) main_~j~0)} is VALID [2018-11-18 23:57:10,414 INFO L273 TraceCheckUtils]: 14: Hoare triple {1578#(<= (+ main_~i~0 6) main_~j~0)} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1579#(<= (+ main_~i~0 5) main_~j~0)} is VALID [2018-11-18 23:57:10,415 INFO L273 TraceCheckUtils]: 15: Hoare triple {1579#(<= (+ main_~i~0 5) main_~j~0)} assume true; {1579#(<= (+ main_~i~0 5) main_~j~0)} is VALID [2018-11-18 23:57:10,415 INFO L273 TraceCheckUtils]: 16: Hoare triple {1579#(<= (+ main_~i~0 5) main_~j~0)} assume !!(~i~0 <= ~n~0); {1579#(<= (+ main_~i~0 5) main_~j~0)} is VALID [2018-11-18 23:57:10,417 INFO L273 TraceCheckUtils]: 17: Hoare triple {1579#(<= (+ main_~i~0 5) main_~j~0)} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {1579#(<= (+ main_~i~0 5) main_~j~0)} is VALID [2018-11-18 23:57:10,418 INFO L273 TraceCheckUtils]: 18: Hoare triple {1579#(<= (+ main_~i~0 5) main_~j~0)} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1580#(<= (+ main_~i~0 4) main_~j~0)} is VALID [2018-11-18 23:57:10,419 INFO L273 TraceCheckUtils]: 19: Hoare triple {1580#(<= (+ main_~i~0 4) main_~j~0)} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1581#(<= (+ main_~i~0 3) main_~j~0)} is VALID [2018-11-18 23:57:10,419 INFO L273 TraceCheckUtils]: 20: Hoare triple {1581#(<= (+ main_~i~0 3) main_~j~0)} assume true; {1581#(<= (+ main_~i~0 3) main_~j~0)} is VALID [2018-11-18 23:57:10,421 INFO L273 TraceCheckUtils]: 21: Hoare triple {1581#(<= (+ main_~i~0 3) main_~j~0)} assume !!(~i~0 <= ~n~0); {1581#(<= (+ main_~i~0 3) main_~j~0)} is VALID [2018-11-18 23:57:10,421 INFO L273 TraceCheckUtils]: 22: Hoare triple {1581#(<= (+ main_~i~0 3) main_~j~0)} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {1581#(<= (+ main_~i~0 3) main_~j~0)} is VALID [2018-11-18 23:57:10,423 INFO L273 TraceCheckUtils]: 23: Hoare triple {1581#(<= (+ main_~i~0 3) main_~j~0)} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1582#(<= (+ main_~i~0 2) main_~j~0)} is VALID [2018-11-18 23:57:10,424 INFO L273 TraceCheckUtils]: 24: Hoare triple {1582#(<= (+ main_~i~0 2) main_~j~0)} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1583#(<= (+ main_~i~0 1) main_~j~0)} is VALID [2018-11-18 23:57:10,425 INFO L273 TraceCheckUtils]: 25: Hoare triple {1583#(<= (+ main_~i~0 1) main_~j~0)} assume true; {1583#(<= (+ main_~i~0 1) main_~j~0)} is VALID [2018-11-18 23:57:10,425 INFO L273 TraceCheckUtils]: 26: Hoare triple {1583#(<= (+ main_~i~0 1) main_~j~0)} assume !!(~i~0 <= ~n~0); {1583#(<= (+ main_~i~0 1) main_~j~0)} is VALID [2018-11-18 23:57:10,427 INFO L273 TraceCheckUtils]: 27: Hoare triple {1583#(<= (+ main_~i~0 1) main_~j~0)} assume !(~i~0 < ~j~0); {1574#false} is VALID [2018-11-18 23:57:10,427 INFO L273 TraceCheckUtils]: 28: Hoare triple {1574#false} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1574#false} is VALID [2018-11-18 23:57:10,427 INFO L273 TraceCheckUtils]: 29: Hoare triple {1574#false} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1574#false} is VALID [2018-11-18 23:57:10,428 INFO L273 TraceCheckUtils]: 30: Hoare triple {1574#false} assume true; {1574#false} is VALID [2018-11-18 23:57:10,428 INFO L273 TraceCheckUtils]: 31: Hoare triple {1574#false} assume !(~i~0 <= ~n~0); {1574#false} is VALID [2018-11-18 23:57:10,428 INFO L256 TraceCheckUtils]: 32: Hoare triple {1574#false} call __VERIFIER_assert((if ~sn~0 == 2 * ~n~0 || 0 == ~sn~0 then 1 else 0)); {1574#false} is VALID [2018-11-18 23:57:10,428 INFO L273 TraceCheckUtils]: 33: Hoare triple {1574#false} ~cond := #in~cond; {1574#false} is VALID [2018-11-18 23:57:10,429 INFO L273 TraceCheckUtils]: 34: Hoare triple {1574#false} assume 0 == ~cond; {1574#false} is VALID [2018-11-18 23:57:10,429 INFO L273 TraceCheckUtils]: 35: Hoare triple {1574#false} assume !false; {1574#false} is VALID [2018-11-18 23:57:10,430 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 18 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 23:57:10,430 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 23:57:10,430 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 23:57:10,439 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-18 23:57:10,452 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-18 23:57:10,452 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 23:57:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 23:57:10,464 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 23:57:10,772 INFO L256 TraceCheckUtils]: 0: Hoare triple {1573#true} call ULTIMATE.init(); {1573#true} is VALID [2018-11-18 23:57:10,772 INFO L273 TraceCheckUtils]: 1: Hoare triple {1573#true} assume true; {1573#true} is VALID [2018-11-18 23:57:10,773 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {1573#true} {1573#true} #40#return; {1573#true} is VALID [2018-11-18 23:57:10,773 INFO L256 TraceCheckUtils]: 3: Hoare triple {1573#true} call #t~ret3 := main(); {1573#true} is VALID [2018-11-18 23:57:10,774 INFO L273 TraceCheckUtils]: 4: Hoare triple {1573#true} havoc ~i~0;~j~0 := 10;~n~0 := (if #t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then #t~nondet0 % 4294967296 % 4294967296 else #t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc #t~nondet0;~sn~0 := 0;~i~0 := 1; {1599#(and (<= main_~i~0 1) (<= 10 main_~j~0))} is VALID [2018-11-18 23:57:10,774 INFO L273 TraceCheckUtils]: 5: Hoare triple {1599#(and (<= main_~i~0 1) (<= 10 main_~j~0))} assume true; {1599#(and (<= main_~i~0 1) (<= 10 main_~j~0))} is VALID [2018-11-18 23:57:10,781 INFO L273 TraceCheckUtils]: 6: Hoare triple {1599#(and (<= main_~i~0 1) (<= 10 main_~j~0))} assume !!(~i~0 <= ~n~0); {1599#(and (<= main_~i~0 1) (<= 10 main_~j~0))} is VALID [2018-11-18 23:57:10,781 INFO L273 TraceCheckUtils]: 7: Hoare triple {1599#(and (<= main_~i~0 1) (<= 10 main_~j~0))} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {1599#(and (<= main_~i~0 1) (<= 10 main_~j~0))} is VALID [2018-11-18 23:57:10,782 INFO L273 TraceCheckUtils]: 8: Hoare triple {1599#(and (<= main_~i~0 1) (<= 10 main_~j~0))} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1612#(and (<= main_~i~0 1) (<= 9 main_~j~0))} is VALID [2018-11-18 23:57:10,783 INFO L273 TraceCheckUtils]: 9: Hoare triple {1612#(and (<= main_~i~0 1) (<= 9 main_~j~0))} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1616#(and (<= main_~i~0 2) (<= 9 main_~j~0))} is VALID [2018-11-18 23:57:10,784 INFO L273 TraceCheckUtils]: 10: Hoare triple {1616#(and (<= main_~i~0 2) (<= 9 main_~j~0))} assume true; {1616#(and (<= main_~i~0 2) (<= 9 main_~j~0))} is VALID [2018-11-18 23:57:10,784 INFO L273 TraceCheckUtils]: 11: Hoare triple {1616#(and (<= main_~i~0 2) (<= 9 main_~j~0))} assume !!(~i~0 <= ~n~0); {1616#(and (<= main_~i~0 2) (<= 9 main_~j~0))} is VALID [2018-11-18 23:57:10,785 INFO L273 TraceCheckUtils]: 12: Hoare triple {1616#(and (<= main_~i~0 2) (<= 9 main_~j~0))} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {1616#(and (<= main_~i~0 2) (<= 9 main_~j~0))} is VALID [2018-11-18 23:57:10,786 INFO L273 TraceCheckUtils]: 13: Hoare triple {1616#(and (<= main_~i~0 2) (<= 9 main_~j~0))} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1629#(and (<= 8 main_~j~0) (<= main_~i~0 2))} is VALID [2018-11-18 23:57:10,788 INFO L273 TraceCheckUtils]: 14: Hoare triple {1629#(and (<= 8 main_~j~0) (<= main_~i~0 2))} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1633#(and (<= main_~i~0 3) (<= 8 main_~j~0))} is VALID [2018-11-18 23:57:10,789 INFO L273 TraceCheckUtils]: 15: Hoare triple {1633#(and (<= main_~i~0 3) (<= 8 main_~j~0))} assume true; {1633#(and (<= main_~i~0 3) (<= 8 main_~j~0))} is VALID [2018-11-18 23:57:10,789 INFO L273 TraceCheckUtils]: 16: Hoare triple {1633#(and (<= main_~i~0 3) (<= 8 main_~j~0))} assume !!(~i~0 <= ~n~0); {1633#(and (<= main_~i~0 3) (<= 8 main_~j~0))} is VALID [2018-11-18 23:57:10,790 INFO L273 TraceCheckUtils]: 17: Hoare triple {1633#(and (<= main_~i~0 3) (<= 8 main_~j~0))} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {1633#(and (<= main_~i~0 3) (<= 8 main_~j~0))} is VALID [2018-11-18 23:57:10,790 INFO L273 TraceCheckUtils]: 18: Hoare triple {1633#(and (<= main_~i~0 3) (<= 8 main_~j~0))} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1646#(and (<= main_~i~0 3) (<= 7 main_~j~0))} is VALID [2018-11-18 23:57:10,791 INFO L273 TraceCheckUtils]: 19: Hoare triple {1646#(and (<= main_~i~0 3) (<= 7 main_~j~0))} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1650#(and (<= 7 main_~j~0) (<= main_~i~0 4))} is VALID [2018-11-18 23:57:10,792 INFO L273 TraceCheckUtils]: 20: Hoare triple {1650#(and (<= 7 main_~j~0) (<= main_~i~0 4))} assume true; {1650#(and (<= 7 main_~j~0) (<= main_~i~0 4))} is VALID [2018-11-18 23:57:10,792 INFO L273 TraceCheckUtils]: 21: Hoare triple {1650#(and (<= 7 main_~j~0) (<= main_~i~0 4))} assume !!(~i~0 <= ~n~0); {1650#(and (<= 7 main_~j~0) (<= main_~i~0 4))} is VALID [2018-11-18 23:57:10,793 INFO L273 TraceCheckUtils]: 22: Hoare triple {1650#(and (<= 7 main_~j~0) (<= main_~i~0 4))} assume ~i~0 < ~j~0;~sn~0 := 2 + ~sn~0; {1650#(and (<= 7 main_~j~0) (<= main_~i~0 4))} is VALID [2018-11-18 23:57:10,794 INFO L273 TraceCheckUtils]: 23: Hoare triple {1650#(and (<= 7 main_~j~0) (<= main_~i~0 4))} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1663#(and (<= 6 main_~j~0) (<= main_~i~0 4))} is VALID [2018-11-18 23:57:10,795 INFO L273 TraceCheckUtils]: 24: Hoare triple {1663#(and (<= 6 main_~j~0) (<= main_~i~0 4))} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1667#(and (<= 6 main_~j~0) (<= main_~i~0 5))} is VALID [2018-11-18 23:57:10,796 INFO L273 TraceCheckUtils]: 25: Hoare triple {1667#(and (<= 6 main_~j~0) (<= main_~i~0 5))} assume true; {1667#(and (<= 6 main_~j~0) (<= main_~i~0 5))} is VALID [2018-11-18 23:57:10,796 INFO L273 TraceCheckUtils]: 26: Hoare triple {1667#(and (<= 6 main_~j~0) (<= main_~i~0 5))} assume !!(~i~0 <= ~n~0); {1667#(and (<= 6 main_~j~0) (<= main_~i~0 5))} is VALID [2018-11-18 23:57:10,797 INFO L273 TraceCheckUtils]: 27: Hoare triple {1667#(and (<= 6 main_~j~0) (<= main_~i~0 5))} assume !(~i~0 < ~j~0); {1574#false} is VALID [2018-11-18 23:57:10,797 INFO L273 TraceCheckUtils]: 28: Hoare triple {1574#false} #t~post2 := ~j~0;~j~0 := #t~post2 - 1;havoc #t~post2; {1574#false} is VALID [2018-11-18 23:57:10,798 INFO L273 TraceCheckUtils]: 29: Hoare triple {1574#false} #t~post1 := ~i~0;~i~0 := 1 + #t~post1;havoc #t~post1; {1574#false} is VALID [2018-11-18 23:57:10,798 INFO L273 TraceCheckUtils]: 30: Hoare triple {1574#false} assume true; {1574#false} is VALID [2018-11-18 23:57:10,798 INFO L273 TraceCheckUtils]: 31: Hoare triple {1574#false} assume !(~i~0 <= ~n~0); {1574#false} is VALID [2018-11-18 23:57:10,798 INFO L256 TraceCheckUtils]: 32: Hoare triple {1574#false} call __VERIFIER_assert((if ~sn~0 == 2 * ~n~0 || 0 == ~sn~0 then 1 else 0)); {1574#false} is VALID [2018-11-18 23:57:10,799 INFO L273 TraceCheckUtils]: 33: Hoare triple {1574#false} ~cond := #in~cond; {1574#false} is VALID [2018-11-18 23:57:10,799 INFO L273 TraceCheckUtils]: 34: Hoare triple {1574#false} assume 0 == ~cond; {1574#false} is VALID [2018-11-18 23:57:10,799 INFO L273 TraceCheckUtils]: 35: Hoare triple {1574#false} assume !false; {1574#false} is VALID [2018-11-18 23:57:10,801 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 18 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 23:57:10,820 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 23:57:10,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2018-11-18 23:57:10,820 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 36 [2018-11-18 23:57:10,821 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 23:57:10,821 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states. [2018-11-18 23:57:10,887 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 60 edges. 60 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 23:57:10,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-18 23:57:10,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-18 23:57:10,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=226, Unknown=0, NotChecked=0, Total=380 [2018-11-18 23:57:10,888 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 20 states. [2018-11-18 23:57:11,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:11,198 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2018-11-18 23:57:11,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 23:57:11,198 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 36 [2018-11-18 23:57:11,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 23:57:11,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-18 23:57:11,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 53 transitions. [2018-11-18 23:57:11,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-18 23:57:11,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 53 transitions. [2018-11-18 23:57:11,202 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 53 transitions. [2018-11-18 23:57:11,269 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 23:57:11,272 INFO L225 Difference]: With dead ends: 55 [2018-11-18 23:57:11,272 INFO L226 Difference]: Without dead ends: 45 [2018-11-18 23:57:11,273 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=226, Unknown=0, NotChecked=0, Total=380 [2018-11-18 23:57:11,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-18 23:57:11,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2018-11-18 23:57:11,321 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 23:57:11,321 INFO L82 GeneralOperation]: Start isEquivalent. First operand 45 states. Second operand 43 states. [2018-11-18 23:57:11,321 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 43 states. [2018-11-18 23:57:11,321 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 43 states. [2018-11-18 23:57:11,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:11,324 INFO L93 Difference]: Finished difference Result 45 states and 47 transitions. [2018-11-18 23:57:11,324 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2018-11-18 23:57:11,324 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:57:11,324 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 23:57:11,324 INFO L74 IsIncluded]: Start isIncluded. First operand 43 states. Second operand 45 states. [2018-11-18 23:57:11,325 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 45 states. [2018-11-18 23:57:11,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:57:11,326 INFO L93 Difference]: Finished difference Result 45 states and 47 transitions. [2018-11-18 23:57:11,326 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2018-11-18 23:57:11,327 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:57:11,327 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 23:57:11,327 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 23:57:11,327 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 23:57:11,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-18 23:57:11,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2018-11-18 23:57:11,329 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 36 [2018-11-18 23:57:11,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 23:57:11,329 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2018-11-18 23:57:11,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-18 23:57:11,330 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2018-11-18 23:57:11,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 23:57:11,330 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 23:57:11,331 INFO L375 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 23:57:11,331 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 23:57:11,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 23:57:11,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1609235137, now seen corresponding path program 5 times [2018-11-18 23:57:11,331 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 23:57:11,331 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 23:57:11,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:57:11,332 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 23:57:11,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:57:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 23:57:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 23:57:11,384 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 23:57:11,424 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-18 23:57:11,425 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-11-18 23:57:11,425 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-11-18 23:57:11,425 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2018-11-18 23:57:11,425 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2018-11-18 23:57:11,425 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-18 23:57:11,425 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2018-11-18 23:57:11,425 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2018-11-18 23:57:11,425 WARN L170 areAnnotationChecker]: L13-4 has no Hoare annotation [2018-11-18 23:57:11,425 WARN L170 areAnnotationChecker]: L13-4 has no Hoare annotation [2018-11-18 23:57:11,425 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-18 23:57:11,425 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-18 23:57:11,425 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-18 23:57:11,426 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2018-11-18 23:57:11,426 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2018-11-18 23:57:11,426 WARN L170 areAnnotationChecker]: L13-5 has no Hoare annotation [2018-11-18 23:57:11,426 WARN L170 areAnnotationChecker]: L13-5 has no Hoare annotation [2018-11-18 23:57:11,426 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2018-11-18 23:57:11,426 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2018-11-18 23:57:11,426 WARN L170 areAnnotationChecker]: L4-2 has no Hoare annotation [2018-11-18 23:57:11,426 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2018-11-18 23:57:11,426 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2018-11-18 23:57:11,426 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-18 23:57:11,426 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2018-11-18 23:57:11,426 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2018-11-18 23:57:11,426 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-18 23:57:11,426 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2018-11-18 23:57:11,427 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-18 23:57:11,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:57:11 BoogieIcfgContainer [2018-11-18 23:57:11,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 23:57:11,430 INFO L168 Benchmark]: Toolchain (without parser) took 13718.62 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 859.3 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -517.5 MB). Peak memory consumption was 341.8 MB. Max. memory is 7.1 GB. [2018-11-18 23:57:11,431 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-18 23:57:11,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-18 23:57:11,432 INFO L168 Benchmark]: Boogie Preprocessor took 32.03 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-18 23:57:11,432 INFO L168 Benchmark]: RCFGBuilder took 592.42 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -789.7 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2018-11-18 23:57:11,433 INFO L168 Benchmark]: TraceAbstraction took 12705.53 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 120.6 MB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 261.6 MB). Peak memory consumption was 382.2 MB. Max. memory is 7.1 GB. [2018-11-18 23:57:11,437 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 384.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.03 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 592.42 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -789.7 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12705.53 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 120.6 MB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 261.6 MB). Peak memory consumption was 382.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] int i, j=10, n=__VERIFIER_nondet_uint(), sn=0; [L12] int i, j=10, n=__VERIFIER_nondet_uint(), sn=0; [L13] i=1 VAL [i=1, j=10, n=6, n=0] [L13] COND TRUE i<=n VAL [i=1, j=10, n=6, n=0] [L14] COND TRUE i