java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-Reach-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/array-tiling/poly1_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a-m [2018-01-30 01:12:29,617 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-30 01:12:29,618 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-30 01:12:29,631 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-30 01:12:29,632 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-30 01:12:29,632 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-30 01:12:29,633 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-30 01:12:29,634 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-30 01:12:29,635 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-30 01:12:29,635 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-30 01:12:29,636 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-30 01:12:29,636 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-30 01:12:29,636 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-30 01:12:29,637 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-30 01:12:29,638 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-30 01:12:29,639 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-30 01:12:29,640 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-30 01:12:29,641 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-30 01:12:29,641 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-30 01:12:29,642 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-30 01:12:29,643 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-30 01:12:29,646 INFO L98 SettingsManager]: Beginning loading settings from /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-Reach-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-01-30 01:12:29,651 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-30 01:12:29,651 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-30 01:12:29,652 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-30 01:12:29,652 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-30 01:12:29,652 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-30 01:12:29,652 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-30 01:12:29,652 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-30 01:12:29,652 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-30 01:12:29,653 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-30 01:12:29,653 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-30 01:12:29,653 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-30 01:12:29,653 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-30 01:12:29,653 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-30 01:12:29,653 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-30 01:12:29,653 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-30 01:12:29,653 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-30 01:12:29,653 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-30 01:12:29,653 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-30 01:12:29,653 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-30 01:12:29,654 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-30 01:12:29,654 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-30 01:12:29,654 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-30 01:12:29,654 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-30 01:12:29,654 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 01:12:29,654 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-30 01:12:29,654 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-30 01:12:29,654 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-30 01:12:29,654 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-30 01:12:29,654 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-30 01:12:29,654 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-30 01:12:29,654 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-30 01:12:29,655 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-30 01:12:29,655 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-30 01:12:29,655 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-30 01:12:29,673 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-30 01:12:29,679 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-30 01:12:29,681 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-30 01:12:29,682 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-30 01:12:29,682 INFO L276 PluginConnector]: CDTParser initialized [2018-01-30 01:12:29,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/poly1_true-unreach-call.i [2018-01-30 01:12:29,744 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-30 01:12:29,745 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-30 01:12:29,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-30 01:12:29,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-30 01:12:29,749 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-30 01:12:29,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 01:12:29" (1/1) ... [2018-01-30 01:12:29,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d35538b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:12:29, skipping insertion in model container [2018-01-30 01:12:29,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 01:12:29" (1/1) ... [2018-01-30 01:12:29,760 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 01:12:29,769 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 01:12:29,838 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 01:12:29,846 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 01:12:29,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:12:29 WrapperNode [2018-01-30 01:12:29,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-30 01:12:29,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-30 01:12:29,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-30 01:12:29,850 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-30 01:12:29,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:12:29" (1/1) ... [2018-01-30 01:12:29,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:12:29" (1/1) ... [2018-01-30 01:12:29,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:12:29" (1/1) ... [2018-01-30 01:12:29,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:12:29" (1/1) ... [2018-01-30 01:12:29,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:12:29" (1/1) ... [2018-01-30 01:12:29,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:12:29" (1/1) ... [2018-01-30 01:12:29,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:12:29" (1/1) ... [2018-01-30 01:12:29,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-30 01:12:29,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-30 01:12:29,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-30 01:12:29,867 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-30 01:12:29,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:12:29" (1/1) ... No working directory specified, using /home/daniel/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 [2018-01-30 01:12:29,905 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-30 01:12:29,905 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-30 01:12:29,905 INFO L136 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-01-30 01:12:29,906 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-30 01:12:29,906 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-30 01:12:29,906 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-01-30 01:12:29,906 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-30 01:12:29,906 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-30 01:12:29,906 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-30 01:12:29,906 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-30 01:12:30,177 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-30 01:12:30,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:12:30 BoogieIcfgContainer [2018-01-30 01:12:30,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-30 01:12:30,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-30 01:12:30,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-30 01:12:30,180 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-30 01:12:30,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 01:12:29" (1/3) ... [2018-01-30 01:12:30,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3162d434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 01:12:30, skipping insertion in model container [2018-01-30 01:12:30,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:12:29" (2/3) ... [2018-01-30 01:12:30,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3162d434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 01:12:30, skipping insertion in model container [2018-01-30 01:12:30,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:12:30" (3/3) ... [2018-01-30 01:12:30,182 INFO L107 eAbstractionObserver]: Analyzing ICFG poly1_true-unreach-call.i [2018-01-30 01:12:30,186 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-30 01:12:30,190 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-01-30 01:12:30,214 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-30 01:12:30,214 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-30 01:12:30,214 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-30 01:12:30,214 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-30 01:12:30,214 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-30 01:12:30,214 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-30 01:12:30,214 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-30 01:12:30,214 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-30 01:12:30,215 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-30 01:12:30,223 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-01-30 01:12:30,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-30 01:12:30,227 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:12:30,227 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:12:30,227 INFO L371 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0AssertViolation]=== [2018-01-30 01:12:30,230 INFO L82 PathProgramCache]: Analyzing trace with hash 543907296, now seen corresponding path program 1 times [2018-01-30 01:12:30,231 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:12:30,231 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:12:30,259 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:12:30,259 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:12:30,259 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:12:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:12:30,284 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:12:30,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:12:30,302 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:12:30,303 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-30 01:12:30,303 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-30 01:12:30,310 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-30 01:12:30,311 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-30 01:12:30,312 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-01-30 01:12:30,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:12:30,324 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2018-01-30 01:12:30,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-30 01:12:30,325 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-01-30 01:12:30,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:12:30,330 INFO L225 Difference]: With dead ends: 54 [2018-01-30 01:12:30,330 INFO L226 Difference]: Without dead ends: 31 [2018-01-30 01:12:30,332 INFO L553 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 [2018-01-30 01:12:30,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-01-30 01:12:30,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-01-30 01:12:30,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-01-30 01:12:30,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2018-01-30 01:12:30,353 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 20 [2018-01-30 01:12:30,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:12:30,353 INFO L432 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2018-01-30 01:12:30,353 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-30 01:12:30,353 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2018-01-30 01:12:30,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-30 01:12:30,354 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:12:30,354 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:12:30,354 INFO L371 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0AssertViolation]=== [2018-01-30 01:12:30,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1519701746, now seen corresponding path program 1 times [2018-01-30 01:12:30,354 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:12:30,354 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:12:30,355 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:12:30,355 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:12:30,355 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:12:30,360 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-30 01:12:30,360 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-30 01:12:30,360 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-01-30 01:12:30,373 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-30 01:12:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:12:30,405 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:12:30,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:12:30,591 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:12:30,591 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-30 01:12:30,592 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-30 01:12:30,592 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-30 01:12:30,592 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-01-30 01:12:30,593 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 4 states. [2018-01-30 01:12:30,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:12:30,744 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2018-01-30 01:12:30,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-30 01:12:30,745 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-01-30 01:12:30,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:12:30,746 INFO L225 Difference]: With dead ends: 54 [2018-01-30 01:12:30,746 INFO L226 Difference]: Without dead ends: 41 [2018-01-30 01:12:30,747 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-01-30 01:12:30,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-01-30 01:12:30,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 33. [2018-01-30 01:12:30,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-01-30 01:12:30,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2018-01-30 01:12:30,752 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 21 [2018-01-30 01:12:30,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:12:30,752 INFO L432 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2018-01-30 01:12:30,752 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-30 01:12:30,752 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-01-30 01:12:30,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-30 01:12:30,753 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:12:30,753 INFO L350 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:12:30,753 INFO L371 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0AssertViolation]=== [2018-01-30 01:12:30,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1823324486, now seen corresponding path program 1 times [2018-01-30 01:12:30,753 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:12:30,753 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:12:30,754 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:12:30,754 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:12:30,754 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:12:30,758 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-30 01:12:30,758 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-30 01:12:30,758 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-30 01:12:30,769 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:12:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:12:30,785 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:12:30,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:12:30,975 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-01-30 01:12:30,976 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-01-30 01:12:30,976 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-30 01:12:30,976 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-30 01:12:30,976 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-01-30 01:12:30,976 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 6 states. [2018-01-30 01:12:31,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:12:31,145 INFO L93 Difference]: Finished difference Result 60 states and 65 transitions. [2018-01-30 01:12:31,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-30 01:12:31,145 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2018-01-30 01:12:31,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:12:31,146 INFO L225 Difference]: With dead ends: 60 [2018-01-30 01:12:31,146 INFO L226 Difference]: Without dead ends: 47 [2018-01-30 01:12:31,146 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-01-30 01:12:31,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-01-30 01:12:31,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 39. [2018-01-30 01:12:31,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-01-30 01:12:31,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2018-01-30 01:12:31,150 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 27 [2018-01-30 01:12:31,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:12:31,150 INFO L432 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2018-01-30 01:12:31,150 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-30 01:12:31,150 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2018-01-30 01:12:31,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-01-30 01:12:31,151 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:12:31,151 INFO L350 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:12:31,151 INFO L371 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0AssertViolation]=== [2018-01-30 01:12:31,151 INFO L82 PathProgramCache]: Analyzing trace with hash 474429310, now seen corresponding path program 2 times [2018-01-30 01:12:31,151 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:12:31,151 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:12:31,152 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:12:31,152 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:12:31,152 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:12:31,155 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-30 01:12:31,155 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-30 01:12:31,155 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-30 01:12:31,177 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-30 01:12:31,183 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:12:31,185 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:12:31,187 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:12:31,188 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:12:31,213 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2018-01-30 01:12:31,214 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:12:33,409 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:12:33,409 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:42, output treesize:13 [2018-01-30 01:12:33,539 WARN L143 SmtUtils]: Spent 121ms on a formula simplification that was a NOOP. DAG size: 10 [2018-01-30 01:12:33,590 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-01-30 01:12:33,591 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:12:33,597 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:12:33,597 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-01-30 01:12:33,664 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:12:33,685 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-01-30 01:12:33,685 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-01-30 01:12:33,686 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-30 01:12:33,686 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-30 01:12:33,686 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-01-30 01:12:33,686 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 10 states. [2018-01-30 01:12:33,883 WARN L146 SmtUtils]: Spent 177ms on a formula simplification. DAG size of input: 16 DAG size of output 12 [2018-01-30 01:12:34,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:12:34,290 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2018-01-30 01:12:34,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-30 01:12:34,290 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2018-01-30 01:12:34,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:12:34,291 INFO L225 Difference]: With dead ends: 79 [2018-01-30 01:12:34,291 INFO L226 Difference]: Without dead ends: 67 [2018-01-30 01:12:34,292 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-01-30 01:12:34,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-01-30 01:12:34,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 53. [2018-01-30 01:12:34,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-01-30 01:12:34,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2018-01-30 01:12:34,297 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 33 [2018-01-30 01:12:34,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:12:34,299 INFO L432 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2018-01-30 01:12:34,299 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-30 01:12:34,299 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2018-01-30 01:12:34,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-01-30 01:12:34,300 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:12:34,300 INFO L350 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:12:34,300 INFO L371 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0AssertViolation]=== [2018-01-30 01:12:34,300 INFO L82 PathProgramCache]: Analyzing trace with hash -660132938, now seen corresponding path program 3 times [2018-01-30 01:12:34,300 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:12:34,300 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:12:34,301 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:12:34,301 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:12:34,301 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:12:34,305 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-30 01:12:34,305 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-30 01:12:34,308 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-30 01:12:34,319 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-01-30 01:12:34,326 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:12:34,327 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:12:34,329 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:12:34,341 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:12:34,343 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:12:34,346 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:12:34,373 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-01-30 01:12:34,373 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:12:34,429 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-01-30 01:12:34,430 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-30 01:12:34,566 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:12:34,567 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:54, output treesize:19 [2018-01-30 01:12:34,705 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-01-30 01:12:34,706 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:12:34,713 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:12:34,713 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:17 [2018-01-30 01:12:34,751 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:12:34,752 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:12:34,755 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:12:34,756 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 61 [2018-01-30 01:12:34,757 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:12:34,947 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 46 [2018-01-30 01:12:34,948 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 4 xjuncts. [2018-01-30 01:12:35,181 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-01-30 01:12:35,181 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:74, output treesize:130 [2018-01-30 01:12:35,569 WARN L143 SmtUtils]: Spent 123ms on a formula simplification that was a NOOP. DAG size: 31 [2018-01-30 01:12:49,546 WARN L146 SmtUtils]: Spent 13870ms on a formula simplification. DAG size of input: 60 DAG size of output 47 [2018-01-30 01:12:51,333 WARN L143 SmtUtils]: Spent 1045ms on a formula simplification that was a NOOP. DAG size: 50 [2018-01-30 01:12:51,511 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 23 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:12:51,532 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-01-30 01:12:51,532 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-01-30 01:12:51,532 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-01-30 01:12:51,533 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-01-30 01:12:51,533 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=237, Unknown=11, NotChecked=0, Total=306 [2018-01-30 01:12:51,533 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand 18 states. [2018-01-30 01:12:53,425 WARN L146 SmtUtils]: Spent 1503ms on a formula simplification. DAG size of input: 61 DAG size of output 27 [2018-01-30 01:12:56,203 WARN L146 SmtUtils]: Spent 2674ms on a formula simplification. DAG size of input: 71 DAG size of output 30 [2018-01-30 01:12:59,652 WARN L146 SmtUtils]: Spent 1169ms on a formula simplification. DAG size of input: 51 DAG size of output 26 [2018-01-30 01:13:02,361 WARN L146 SmtUtils]: Spent 2544ms on a formula simplification. DAG size of input: 52 DAG size of output 27 [2018-01-30 01:13:12,583 WARN L146 SmtUtils]: Spent 7404ms on a formula simplification. DAG size of input: 60 DAG size of output 60 [2018-01-30 01:13:17,286 WARN L146 SmtUtils]: Spent 3774ms on a formula simplification. DAG size of input: 71 DAG size of output 71 [2018-01-30 01:13:21,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:13:21,780 INFO L93 Difference]: Finished difference Result 93 states and 102 transitions. [2018-01-30 01:13:21,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-01-30 01:13:21,780 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 39 [2018-01-30 01:13:21,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:13:21,782 INFO L225 Difference]: With dead ends: 93 [2018-01-30 01:13:21,782 INFO L226 Difference]: Without dead ends: 81 [2018-01-30 01:13:21,783 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 37.6s TimeCoverageRelationStatistics Valid=170, Invalid=725, Unknown=35, NotChecked=0, Total=930 [2018-01-30 01:13:21,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-01-30 01:13:21,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 59. [2018-01-30 01:13:21,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-01-30 01:13:21,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2018-01-30 01:13:21,788 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 39 [2018-01-30 01:13:21,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:13:21,788 INFO L432 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2018-01-30 01:13:21,788 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-01-30 01:13:21,788 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2018-01-30 01:13:21,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-01-30 01:13:21,788 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:13:21,789 INFO L350 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:13:21,789 INFO L371 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0AssertViolation]=== [2018-01-30 01:13:21,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1111185500, now seen corresponding path program 1 times [2018-01-30 01:13:21,789 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:13:21,789 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:13:21,789 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:13:21,790 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:13:21,790 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:13:21,792 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-30 01:13:21,793 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-30 01:13:21,793 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-30 01:13:21,809 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:13:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:13:21,824 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:13:21,850 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-01-30 01:13:21,850 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:21,851 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:21,851 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-01-30 01:13:22,032 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:13:22,049 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-01-30 01:13:22,049 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-01-30 01:13:22,049 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-30 01:13:22,049 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-30 01:13:22,049 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2018-01-30 01:13:22,049 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 14 states. [2018-01-30 01:13:22,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:13:22,265 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2018-01-30 01:13:22,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-01-30 01:13:22,265 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2018-01-30 01:13:22,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:13:22,267 INFO L225 Difference]: With dead ends: 100 [2018-01-30 01:13:22,267 INFO L226 Difference]: Without dead ends: 88 [2018-01-30 01:13:22,268 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2018-01-30 01:13:22,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-01-30 01:13:22,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 73. [2018-01-30 01:13:22,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-01-30 01:13:22,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2018-01-30 01:13:22,274 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 43 [2018-01-30 01:13:22,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:13:22,274 INFO L432 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2018-01-30 01:13:22,274 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-01-30 01:13:22,274 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2018-01-30 01:13:22,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-01-30 01:13:22,275 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:13:22,275 INFO L350 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:13:22,275 INFO L371 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0AssertViolation]=== [2018-01-30 01:13:22,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1801644562, now seen corresponding path program 4 times [2018-01-30 01:13:22,276 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:13:22,276 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:13:22,276 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:13:22,276 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:13:22,276 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:13:22,279 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-30 01:13:22,279 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-30 01:13:22,279 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-30 01:13:22,296 INFO L101 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-01-30 01:13:22,315 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:13:22,317 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:13:22,359 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-01-30 01:13:22,359 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:22,426 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-01-30 01:13:22,426 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:22,485 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:22,486 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:13 [2018-01-30 01:13:22,584 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-01-30 01:13:22,584 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:22,589 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:22,589 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:22,590 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 29 [2018-01-30 01:13:22,590 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:22,595 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:22,595 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:52, output treesize:18 [2018-01-30 01:13:22,643 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:22,644 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:22,644 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:22,645 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:22,646 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 56 [2018-01-30 01:13:22,646 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:22,663 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:22,663 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:62, output treesize:23 [2018-01-30 01:13:22,724 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:22,725 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:22,725 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:22,726 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:22,726 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:22,727 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 11 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 55 [2018-01-30 01:13:22,727 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:22,734 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:22,734 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:21 [2018-01-30 01:13:22,792 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:13:22,808 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-01-30 01:13:22,808 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-01-30 01:13:22,809 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-01-30 01:13:22,809 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-01-30 01:13:22,809 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2018-01-30 01:13:22,809 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand 16 states. [2018-01-30 01:13:23,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:13:23,418 INFO L93 Difference]: Finished difference Result 115 states and 126 transitions. [2018-01-30 01:13:23,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-01-30 01:13:23,419 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 45 [2018-01-30 01:13:23,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:13:23,419 INFO L225 Difference]: With dead ends: 115 [2018-01-30 01:13:23,419 INFO L226 Difference]: Without dead ends: 103 [2018-01-30 01:13:23,420 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2018-01-30 01:13:23,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-01-30 01:13:23,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 80. [2018-01-30 01:13:23,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-01-30 01:13:23,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 86 transitions. [2018-01-30 01:13:23,426 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 86 transitions. Word has length 45 [2018-01-30 01:13:23,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:13:23,426 INFO L432 AbstractCegarLoop]: Abstraction has 80 states and 86 transitions. [2018-01-30 01:13:23,426 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-01-30 01:13:23,426 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 86 transitions. [2018-01-30 01:13:23,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-01-30 01:13:23,427 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:13:23,427 INFO L350 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:13:23,427 INFO L371 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0AssertViolation]=== [2018-01-30 01:13:23,427 INFO L82 PathProgramCache]: Analyzing trace with hash -532584812, now seen corresponding path program 2 times [2018-01-30 01:13:23,427 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:13:23,427 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:13:23,428 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:13:23,428 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:13:23,428 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:13:23,431 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-30 01:13:23,431 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-30 01:13:23,431 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-30 01:13:23,435 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-30 01:13:23,439 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:13:23,442 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:13:23,447 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:13:23,449 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:13:23,461 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-01-30 01:13:23,461 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:23,465 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-01-30 01:13:23,465 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:23,467 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:23,467 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:13 [2018-01-30 01:13:23,510 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:23,511 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 17 [2018-01-30 01:13:23,511 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:23,513 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:23,514 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-01-30 01:13:23,645 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:13:23,662 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-01-30 01:13:23,662 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-01-30 01:13:23,662 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-01-30 01:13:23,662 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-01-30 01:13:23,663 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2018-01-30 01:13:23,663 INFO L87 Difference]: Start difference. First operand 80 states and 86 transitions. Second operand 17 states. [2018-01-30 01:13:24,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:13:24,108 INFO L93 Difference]: Finished difference Result 120 states and 134 transitions. [2018-01-30 01:13:24,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-01-30 01:13:24,108 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 49 [2018-01-30 01:13:24,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:13:24,109 INFO L225 Difference]: With dead ends: 120 [2018-01-30 01:13:24,109 INFO L226 Difference]: Without dead ends: 108 [2018-01-30 01:13:24,110 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2018-01-30 01:13:24,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-01-30 01:13:24,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 76. [2018-01-30 01:13:24,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-01-30 01:13:24,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2018-01-30 01:13:24,115 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 49 [2018-01-30 01:13:24,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:13:24,116 INFO L432 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2018-01-30 01:13:24,116 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-01-30 01:13:24,116 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2018-01-30 01:13:24,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-01-30 01:13:24,116 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:13:24,116 INFO L350 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:13:24,116 INFO L371 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0AssertViolation]=== [2018-01-30 01:13:24,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1004174266, now seen corresponding path program 3 times [2018-01-30 01:13:24,117 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:13:24,117 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:13:24,117 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:13:24,117 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:13:24,117 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:13:24,120 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-30 01:13:24,120 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-30 01:13:24,120 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-30 01:13:24,126 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-01-30 01:13:24,130 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:13:24,133 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:13:24,276 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:13:24,276 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:13:24,278 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:13:24,470 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-01-30 01:13:24,487 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-01-30 01:13:24,487 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-01-30 01:13:24,487 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-01-30 01:13:24,487 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-01-30 01:13:24,488 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2018-01-30 01:13:24,488 INFO L87 Difference]: Start difference. First operand 76 states and 81 transitions. Second operand 13 states. [2018-01-30 01:13:24,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:13:24,985 INFO L93 Difference]: Finished difference Result 119 states and 127 transitions. [2018-01-30 01:13:24,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-01-30 01:13:24,985 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 53 [2018-01-30 01:13:24,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:13:24,985 INFO L225 Difference]: With dead ends: 119 [2018-01-30 01:13:24,986 INFO L226 Difference]: Without dead ends: 84 [2018-01-30 01:13:24,986 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2018-01-30 01:13:24,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-01-30 01:13:24,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 76. [2018-01-30 01:13:24,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-01-30 01:13:24,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 80 transitions. [2018-01-30 01:13:24,994 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 80 transitions. Word has length 53 [2018-01-30 01:13:24,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:13:24,994 INFO L432 AbstractCegarLoop]: Abstraction has 76 states and 80 transitions. [2018-01-30 01:13:24,994 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-01-30 01:13:24,994 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 80 transitions. [2018-01-30 01:13:24,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-01-30 01:13:24,995 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:13:24,995 INFO L350 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:13:24,995 INFO L371 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0AssertViolation]=== [2018-01-30 01:13:24,995 INFO L82 PathProgramCache]: Analyzing trace with hash -916949466, now seen corresponding path program 5 times [2018-01-30 01:13:24,995 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:13:24,995 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:13:24,998 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:13:24,998 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:13:24,998 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:13:25,000 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-30 01:13:25,000 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-30 01:13:25,000 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-01-30 01:13:25,006 INFO L101 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-30 01:13:25,012 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:13:25,013 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:13:25,014 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:13:25,031 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:13:25,039 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:13:25,060 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:13:25,075 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:13:25,076 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:13:25,107 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2018-01-30 01:13:25,108 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:25,191 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:25,191 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:42, output treesize:13 [2018-01-30 01:13:25,296 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,296 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,297 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 37 [2018-01-30 01:13:25,297 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:25,309 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:25,309 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:52, output treesize:18 [2018-01-30 01:13:25,349 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-01-30 01:13:25,350 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:25,372 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,372 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,373 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,373 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,374 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 48 [2018-01-30 01:13:25,374 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:25,382 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:25,382 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:62, output treesize:23 [2018-01-30 01:13:25,421 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,422 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,422 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,423 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,423 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,424 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,424 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,425 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,425 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 11 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 91 [2018-01-30 01:13:25,426 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:25,447 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:25,447 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:72, output treesize:28 [2018-01-30 01:13:25,492 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,494 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,495 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,495 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,496 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,496 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,497 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:25,498 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 17 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 74 [2018-01-30 01:13:25,498 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:25,507 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:25,507 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:26 [2018-01-30 01:13:25,607 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:13:25,627 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-01-30 01:13:25,627 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-01-30 01:13:25,627 INFO L409 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-01-30 01:13:25,627 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-01-30 01:13:25,628 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2018-01-30 01:13:25,628 INFO L87 Difference]: Start difference. First operand 76 states and 80 transitions. Second operand 19 states. [2018-01-30 01:13:26,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:13:26,333 INFO L93 Difference]: Finished difference Result 125 states and 135 transitions. [2018-01-30 01:13:26,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-01-30 01:13:26,333 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 51 [2018-01-30 01:13:26,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:13:26,334 INFO L225 Difference]: With dead ends: 125 [2018-01-30 01:13:26,334 INFO L226 Difference]: Without dead ends: 113 [2018-01-30 01:13:26,334 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2018-01-30 01:13:26,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-01-30 01:13:26,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 82. [2018-01-30 01:13:26,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-01-30 01:13:26,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 87 transitions. [2018-01-30 01:13:26,346 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 87 transitions. Word has length 51 [2018-01-30 01:13:26,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:13:26,346 INFO L432 AbstractCegarLoop]: Abstraction has 82 states and 87 transitions. [2018-01-30 01:13:26,346 INFO L433 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-01-30 01:13:26,346 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 87 transitions. [2018-01-30 01:13:26,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-01-30 01:13:26,347 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:13:26,347 INFO L350 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:13:26,347 INFO L371 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0AssertViolation]=== [2018-01-30 01:13:26,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1956517172, now seen corresponding path program 4 times [2018-01-30 01:13:26,347 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:13:26,347 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:13:26,348 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:13:26,348 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:13:26,348 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:13:26,353 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-30 01:13:26,353 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-30 01:13:26,353 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-30 01:13:26,360 INFO L101 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-01-30 01:13:26,383 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:13:26,385 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:13:26,403 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-01-30 01:13:26,404 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:26,407 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-01-30 01:13:26,408 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:26,410 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:26,410 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:13 [2018-01-30 01:13:26,429 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-01-30 01:13:26,430 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:26,466 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:26,466 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:26,467 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 29 [2018-01-30 01:13:26,467 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:26,491 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:26,491 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:52, output treesize:18 [2018-01-30 01:13:26,519 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:26,519 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:26,520 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:26,520 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 36 [2018-01-30 01:13:26,521 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:26,525 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:26,525 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2018-01-30 01:13:26,704 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 1 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:13:26,721 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-01-30 01:13:26,722 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-01-30 01:13:26,722 INFO L409 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-01-30 01:13:26,722 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-01-30 01:13:26,722 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2018-01-30 01:13:26,722 INFO L87 Difference]: Start difference. First operand 82 states and 87 transitions. Second operand 20 states. [2018-01-30 01:13:27,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:13:27,454 INFO L93 Difference]: Finished difference Result 126 states and 140 transitions. [2018-01-30 01:13:27,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-01-30 01:13:27,454 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 55 [2018-01-30 01:13:27,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:13:27,455 INFO L225 Difference]: With dead ends: 126 [2018-01-30 01:13:27,455 INFO L226 Difference]: Without dead ends: 114 [2018-01-30 01:13:27,455 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=826, Unknown=0, NotChecked=0, Total=930 [2018-01-30 01:13:27,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-01-30 01:13:27,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 96. [2018-01-30 01:13:27,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-01-30 01:13:27,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 102 transitions. [2018-01-30 01:13:27,463 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 102 transitions. Word has length 55 [2018-01-30 01:13:27,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:13:27,463 INFO L432 AbstractCegarLoop]: Abstraction has 96 states and 102 transitions. [2018-01-30 01:13:27,463 INFO L433 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-01-30 01:13:27,463 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 102 transitions. [2018-01-30 01:13:27,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-01-30 01:13:27,464 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:13:27,464 INFO L350 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:13:27,464 INFO L371 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0AssertViolation]=== [2018-01-30 01:13:27,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1641143310, now seen corresponding path program 5 times [2018-01-30 01:13:27,464 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:13:27,464 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:13:27,464 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:13:27,465 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:13:27,465 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:13:27,467 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-30 01:13:27,467 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-30 01:13:27,467 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-30 01:13:27,489 INFO L101 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-01-30 01:13:27,492 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:13:27,494 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:13:27,508 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:13:27,815 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:13:27,818 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:13:27,820 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:13:27,835 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-01-30 01:13:27,836 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:27,860 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:27,860 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-01-30 01:13:28,041 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-01-30 01:13:28,057 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-01-30 01:13:28,057 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-01-30 01:13:28,058 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-01-30 01:13:28,058 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-01-30 01:13:28,058 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2018-01-30 01:13:28,058 INFO L87 Difference]: Start difference. First operand 96 states and 102 transitions. Second operand 18 states. [2018-01-30 01:13:28,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:13:28,548 INFO L93 Difference]: Finished difference Result 136 states and 150 transitions. [2018-01-30 01:13:28,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-01-30 01:13:28,548 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 59 [2018-01-30 01:13:28,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:13:28,549 INFO L225 Difference]: With dead ends: 136 [2018-01-30 01:13:28,549 INFO L226 Difference]: Without dead ends: 124 [2018-01-30 01:13:28,549 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=709, Unknown=0, NotChecked=0, Total=812 [2018-01-30 01:13:28,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-01-30 01:13:28,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 96. [2018-01-30 01:13:28,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-01-30 01:13:28,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 102 transitions. [2018-01-30 01:13:28,556 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 102 transitions. Word has length 59 [2018-01-30 01:13:28,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:13:28,556 INFO L432 AbstractCegarLoop]: Abstraction has 96 states and 102 transitions. [2018-01-30 01:13:28,556 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-01-30 01:13:28,556 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 102 transitions. [2018-01-30 01:13:28,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-01-30 01:13:28,557 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:13:28,557 INFO L350 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:13:28,557 INFO L371 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0AssertViolation]=== [2018-01-30 01:13:28,557 INFO L82 PathProgramCache]: Analyzing trace with hash 778619998, now seen corresponding path program 6 times [2018-01-30 01:13:28,557 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:13:28,557 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:13:28,557 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:13:28,558 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:13:28,558 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:13:28,560 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-30 01:13:28,560 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-30 01:13:28,560 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-30 01:13:28,565 INFO L101 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-01-30 01:13:28,569 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:13:28,571 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:13:28,572 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:13:28,573 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:13:28,578 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:13:28,654 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:13:28,694 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:13:28,710 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:13:28,712 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:13:29,014 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2018-01-30 01:13:29,015 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:29,130 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:29,130 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:54, output treesize:19 [2018-01-30 01:13:29,197 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-01-30 01:13:29,197 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:29,203 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,204 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,204 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 29 [2018-01-30 01:13:29,205 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:29,211 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:29,211 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:64, output treesize:24 [2018-01-30 01:13:29,250 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-01-30 01:13:29,250 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:29,257 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,258 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,258 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,259 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,259 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 48 [2018-01-30 01:13:29,259 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:29,269 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:29,269 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:74, output treesize:29 [2018-01-30 01:13:29,349 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-01-30 01:13:29,349 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:29,358 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,358 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,359 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,359 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,360 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,360 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,360 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,361 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,361 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 11 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 83 [2018-01-30 01:13:29,362 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:29,375 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:29,375 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:84, output treesize:34 [2018-01-30 01:13:29,436 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-01-30 01:13:29,437 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:29,465 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,466 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,466 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,467 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,467 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,468 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,468 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,469 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,469 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,470 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,470 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,470 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,471 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,471 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 19 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 126 [2018-01-30 01:13:29,472 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:29,494 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:29,495 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:94, output treesize:39 [2018-01-30 01:13:29,604 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-01-30 01:13:29,604 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:29,615 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,616 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,616 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,617 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,617 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,618 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,618 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,619 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,619 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,620 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,620 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,624 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,625 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,625 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,626 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,626 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,627 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:29,628 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 27 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 161 [2018-01-30 01:13:29,628 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:29,654 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:29,654 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:104, output treesize:44 [2018-01-30 01:13:29,815 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:13:29,832 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-01-30 01:13:29,832 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-01-30 01:13:29,832 INFO L409 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-01-30 01:13:29,832 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-01-30 01:13:29,832 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=756, Unknown=0, NotChecked=0, Total=870 [2018-01-30 01:13:29,833 INFO L87 Difference]: Start difference. First operand 96 states and 102 transitions. Second operand 30 states. [2018-01-30 01:13:31,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:13:31,704 INFO L93 Difference]: Finished difference Result 154 states and 167 transitions. [2018-01-30 01:13:31,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-01-30 01:13:31,705 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 57 [2018-01-30 01:13:31,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:13:31,706 INFO L225 Difference]: With dead ends: 154 [2018-01-30 01:13:31,706 INFO L226 Difference]: Without dead ends: 142 [2018-01-30 01:13:31,706 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=231, Invalid=1931, Unknown=0, NotChecked=0, Total=2162 [2018-01-30 01:13:31,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2018-01-30 01:13:31,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 116. [2018-01-30 01:13:31,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-01-30 01:13:31,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 124 transitions. [2018-01-30 01:13:31,715 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 124 transitions. Word has length 57 [2018-01-30 01:13:31,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:13:31,715 INFO L432 AbstractCegarLoop]: Abstraction has 116 states and 124 transitions. [2018-01-30 01:13:31,715 INFO L433 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-01-30 01:13:31,715 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 124 transitions. [2018-01-30 01:13:31,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-01-30 01:13:31,715 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:13:31,716 INFO L350 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:13:31,716 INFO L371 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0AssertViolation]=== [2018-01-30 01:13:31,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1486068476, now seen corresponding path program 6 times [2018-01-30 01:13:31,716 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:13:31,716 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:13:31,717 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:13:31,717 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:13:31,717 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:13:31,719 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-30 01:13:31,719 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-30 01:13:31,719 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-30 01:13:31,727 INFO L101 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-01-30 01:13:31,732 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:13:31,734 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:13:31,736 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:13:31,746 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:13:31,748 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:13:31,806 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:13:31,808 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:13:31,839 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2018-01-30 01:13:31,839 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:31,913 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:31,913 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:54, output treesize:19 [2018-01-30 01:13:31,956 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:31,957 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 17 [2018-01-30 01:13:31,957 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:31,961 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:13:31,961 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:17 [2018-01-30 01:13:31,991 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:32,019 WARN L686 Elim1Store]: solver failed to check if following not equals relation is implied: (= (* main_~i~6 main_~i~6) (select v_prenex_28 1)) [2018-01-30 01:13:32,063 WARN L686 Elim1Store]: solver failed to check if following not equals relation is implied: (= (* main_~i~6 main_~i~6) (select v_prenex_28 2)) [2018-01-30 01:13:32,090 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 43 [2018-01-30 01:13:32,090 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 4 xjuncts. [2018-01-30 01:13:32,134 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:32,135 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:32,135 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:34,143 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (select v_main_~a~6_35 1) (* main_~i~6 main_~i~6)) [2018-01-30 01:13:36,149 WARN L686 Elim1Store]: solver failed to check if following not equals relation is implied: (= (select v_main_~a~6_35 2) (* main_~i~6 main_~i~6)) [2018-01-30 01:13:36,149 INFO L303 Elim1Store]: Index analysis took 4017 ms [2018-01-30 01:13:36,149 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 58 [2018-01-30 01:13:36,150 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:36,205 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-01-30 01:13:36,205 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:68, output treesize:118 [2018-01-30 01:13:37,176 WARN L143 SmtUtils]: Spent 270ms on a formula simplification that was a NOOP. DAG size: 35 [2018-01-30 01:13:37,294 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,295 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,295 INFO L682 Elim1Store]: detected equality via solver [2018-01-30 01:13:37,298 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,300 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,305 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 91 [2018-01-30 01:13:37,305 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:37,567 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,568 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,569 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,572 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,576 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,578 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,579 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 102 [2018-01-30 01:13:37,579 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:37,838 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,842 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,843 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,844 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,845 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,850 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,858 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,863 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,865 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,875 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,883 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:37,884 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 163 [2018-01-30 01:13:37,884 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:38,778 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:38,778 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:38,779 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:38,780 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:38,780 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:38,789 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:38,794 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:38,795 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:38,850 WARN L686 Elim1Store]: solver failed to check if following not equals relation is implied: (= (* main_~i~6 main_~i~6) (select v_prenex_29 1)) [2018-01-30 01:13:38,904 WARN L686 Elim1Store]: solver failed to check if following not equals relation is implied: (= (select v_prenex_29 2) (* main_~i~6 main_~i~6)) [2018-01-30 01:13:38,904 INFO L303 Elim1Store]: Index analysis took 133 ms [2018-01-30 01:13:38,905 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 138 [2018-01-30 01:13:38,905 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:40,568 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:41,936 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (select v_prenex_31 (mod (+ main_~i~6 4294967295) 4294967296)) (* main_~i~6 main_~i~6)) [2018-01-30 01:13:41,938 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:41,940 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:41,951 INFO L303 Elim1Store]: Index analysis took 1389 ms [2018-01-30 01:13:41,997 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 84 [2018-01-30 01:13:41,998 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-01-30 01:13:43,373 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:43,374 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:43,377 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:43,378 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:43,379 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:43,381 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:43,395 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:43,397 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 01:13:43,406 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 147 [2018-01-30 01:13:43,406 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-01-30 01:13:43,945 INFO L267 ElimStorePlain]: Start of recursive call 1: 8 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-01-30 01:13:43,945 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 8 variables, input treesize:453, output treesize:366 [2018-01-30 01:13:44,255 WARN L143 SmtUtils]: Spent 222ms on a formula simplification that was a NOOP. DAG size: 49 Received shutdown request... [2018-01-30 01:13:54,066 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-30 01:13:54,066 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-30 01:13:54,069 WARN L185 ceAbstractionStarter]: Timeout [2018-01-30 01:13:54,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 01:13:54 BoogieIcfgContainer [2018-01-30 01:13:54,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-30 01:13:54,069 INFO L168 Benchmark]: Toolchain (without parser) took 84325.11 ms. Allocated memory was 150.5 MB in the beginning and 276.8 MB in the end (delta: 126.4 MB). Free memory was 114.3 MB in the beginning and 245.4 MB in the end (delta: -131.1 MB). Peak memory consumption was 145.4 MB. Max. memory is 5.3 GB. [2018-01-30 01:13:54,070 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 150.5 MB. Free memory is still 118.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 01:13:54,070 INFO L168 Benchmark]: CACSL2BoogieTranslator took 104.13 ms. Allocated memory is still 150.5 MB. Free memory was 114.1 MB in the beginning and 105.9 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 5.3 GB. [2018-01-30 01:13:54,070 INFO L168 Benchmark]: Boogie Preprocessor took 17.28 ms. Allocated memory is still 150.5 MB. Free memory was 105.9 MB in the beginning and 104.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 5.3 GB. [2018-01-30 01:13:54,070 INFO L168 Benchmark]: RCFGBuilder took 310.40 ms. Allocated memory is still 150.5 MB. Free memory was 104.3 MB in the beginning and 92.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-01-30 01:13:54,070 INFO L168 Benchmark]: TraceAbstraction took 83891.13 ms. Allocated memory was 150.5 MB in the beginning and 276.8 MB in the end (delta: 126.4 MB). Free memory was 92.2 MB in the beginning and 245.4 MB in the end (delta: -153.2 MB). Peak memory consumption was 123.3 MB. Max. memory is 5.3 GB. [2018-01-30 01:13:54,071 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 150.5 MB. Free memory is still 118.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 104.13 ms. Allocated memory is still 150.5 MB. Free memory was 114.1 MB in the beginning and 105.9 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 17.28 ms. Allocated memory is still 150.5 MB. Free memory was 105.9 MB in the beginning and 104.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 5.3 GB. * RCFGBuilder took 310.40 ms. Allocated memory is still 150.5 MB. Free memory was 104.3 MB in the beginning and 92.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 83891.13 ms. Allocated memory was 150.5 MB in the beginning and 276.8 MB in the end (delta: 126.4 MB). Free memory was 92.2 MB in the beginning and 245.4 MB in the end (delta: -153.2 MB). Peak memory consumption was 123.3 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 5]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 5). Cancelled while BasicCegarLoop was analyzing trace of length 62 with TraceHistMax 6, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 145. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 36 locations, 1 error locations. TIMEOUT Result, 83.8s OverallTime, 14 OverallIterations, 7 TraceHistogramMax, 36.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 455 SDtfs, 682 SDslu, 3449 SDs, 0 SdLazy, 4050 SolverSat, 202 SolverUnsat, 35 SolverUnknown, 0 SolverNotchecked, 12.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 625 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 264 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1397 ImplicationChecksByTransitivity, 42.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 233 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 23.2s InterpolantComputationTime, 552 NumberOfCodeBlocks, 552 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 539 ConstructedInterpolants, 8 QuantifiedInterpolants, 250287 SizeOfPredicates, 111 NumberOfNonLiveVariables, 884 ConjunctsInSsa, 283 ConjunctsInUnsatCore, 13 InterpolantComputations, 2 PerfectInterpolantSequences, 27/419 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/poly1_true-unreach-call.i_svcomp-Reach-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-30_01-13-54-075.csv Written .csv to /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/poly1_true-unreach-call.i_svcomp-Reach-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-30_01-13-54-075.csv Completed graceful shutdown