java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-bitfields-2.1_false-valid-free.i_19.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:47:56,384 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:47:56,387 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:47:56,405 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:47:56,406 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:47:56,407 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:47:56,408 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:47:56,410 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:47:56,413 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:47:56,414 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:47:56,422 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:47:56,422 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:47:56,423 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:47:56,424 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:47:56,426 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:47:56,426 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:47:56,427 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:47:56,429 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:47:56,431 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:47:56,433 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:47:56,434 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:47:56,435 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:47:56,437 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 15:47:56,437 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 15:47:56,438 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 15:47:56,439 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 15:47:56,439 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 15:47:56,440 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 15:47:56,442 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 15:47:56,443 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 15:47:56,443 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 15:47:56,447 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-10 15:47:56,452 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-10 15:47:56,463 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:47:56,463 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:47:56,464 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:47:56,464 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:47:56,464 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:47:56,464 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:47:56,465 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:47:56,465 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:47:56,465 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:47:56,466 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:47:56,466 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:47:56,466 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:47:56,466 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:47:56,467 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:47:56,467 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:47:56,515 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:47:56,531 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:47:56,538 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:47:56,540 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:47:56,540 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:47:56,541 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-bitfields-2.1_false-valid-free.i_19.bpl [2018-10-10 15:47:56,541 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-bitfields-2.1_false-valid-free.i_19.bpl' [2018-10-10 15:47:56,626 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:47:56,628 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:47:56,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:47:56,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:47:56,629 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:47:56,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:47:56" (1/1) ... [2018-10-10 15:47:56,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:47:56" (1/1) ... [2018-10-10 15:47:56,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:47:56" (1/1) ... [2018-10-10 15:47:56,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:47:56" (1/1) ... [2018-10-10 15:47:56,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:47:56" (1/1) ... [2018-10-10 15:47:56,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:47:56" (1/1) ... [2018-10-10 15:47:56,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:47:56" (1/1) ... [2018-10-10 15:47:56,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:47:56,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:47:56,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:47:56,713 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:47:56,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "test-bitfields-2.1_false-valid-free.i_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:47:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-10 15:47:56,779 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:47:56,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:47:56,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:47:57,904 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:47:57,906 INFO L202 PluginConnector]: Adding new model test-bitfields-2.1_false-valid-free.i_19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:47:57 BoogieIcfgContainer [2018-10-10 15:47:57,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:47:57,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:47:57,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:47:57,911 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:47:57,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "test-bitfields-2.1_false-valid-free.i_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:47:56" (1/2) ... [2018-10-10 15:47:57,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1337321f and model type test-bitfields-2.1_false-valid-free.i_19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:47:57, skipping insertion in model container [2018-10-10 15:47:57,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "test-bitfields-2.1_false-valid-free.i_19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:47:57" (2/2) ... [2018-10-10 15:47:57,915 INFO L112 eAbstractionObserver]: Analyzing ICFG test-bitfields-2.1_false-valid-free.i_19.bpl [2018-10-10 15:47:57,925 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:47:57,935 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:47:57,953 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:47:57,982 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:47:57,983 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:47:57,983 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:47:57,984 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:47:57,984 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:47:57,984 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:47:57,984 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:47:57,984 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:47:57,984 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:47:58,007 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2018-10-10 15:47:58,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-10-10 15:47:58,027 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:47:58,029 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 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, 1, 1] [2018-10-10 15:47:58,030 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:47:58,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:47:58,038 INFO L82 PathProgramCache]: Analyzing trace with hash -130042027, now seen corresponding path program 1 times [2018-10-10 15:47:58,106 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:47:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:47:58,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:47:58,589 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:47:58,590 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 15:47:58,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 15:47:58,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 15:47:58,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 15:47:58,616 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 4 states. [2018-10-10 15:47:58,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:47:58,736 INFO L93 Difference]: Finished difference Result 158 states and 158 transitions. [2018-10-10 15:47:58,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 15:47:58,739 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2018-10-10 15:47:58,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:47:58,755 INFO L225 Difference]: With dead ends: 158 [2018-10-10 15:47:58,755 INFO L226 Difference]: Without dead ends: 158 [2018-10-10 15:47:58,758 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 15:47:58,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-10-10 15:47:58,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 156. [2018-10-10 15:47:58,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-10-10 15:47:58,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 156 transitions. [2018-10-10 15:47:58,812 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 156 transitions. Word has length 152 [2018-10-10 15:47:58,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:47:58,815 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 156 transitions. [2018-10-10 15:47:58,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 15:47:58,818 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 156 transitions. [2018-10-10 15:47:58,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-10-10 15:47:58,828 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:47:58,828 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1] [2018-10-10 15:47:58,828 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:47:58,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:47:58,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1686803982, now seen corresponding path program 1 times [2018-10-10 15:47:58,830 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:47:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:47:59,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:47:59,182 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:47:59,182 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-10 15:47:59,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 15:47:59,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 15:47:59,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 15:47:59,186 INFO L87 Difference]: Start difference. First operand 156 states and 156 transitions. Second operand 5 states. [2018-10-10 15:47:59,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:47:59,291 INFO L93 Difference]: Finished difference Result 161 states and 161 transitions. [2018-10-10 15:47:59,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 15:47:59,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2018-10-10 15:47:59,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:47:59,295 INFO L225 Difference]: With dead ends: 161 [2018-10-10 15:47:59,295 INFO L226 Difference]: Without dead ends: 161 [2018-10-10 15:47:59,296 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-10 15:47:59,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2018-10-10 15:47:59,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 159. [2018-10-10 15:47:59,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-10-10 15:47:59,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 159 transitions. [2018-10-10 15:47:59,312 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 159 transitions. Word has length 155 [2018-10-10 15:47:59,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:47:59,313 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 159 transitions. [2018-10-10 15:47:59,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 15:47:59,314 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 159 transitions. [2018-10-10 15:47:59,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-10-10 15:47:59,317 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:47:59,317 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1] [2018-10-10 15:47:59,317 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:47:59,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:47:59,318 INFO L82 PathProgramCache]: Analyzing trace with hash -2126573387, now seen corresponding path program 2 times [2018-10-10 15:47:59,319 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:47:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:47:59,530 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:47:59,531 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:47:59,531 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-10-10 15:47:59,532 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 15:47:59,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 15:47:59,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-10 15:47:59,533 INFO L87 Difference]: Start difference. First operand 159 states and 159 transitions. Second operand 6 states. [2018-10-10 15:47:59,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:47:59,794 INFO L93 Difference]: Finished difference Result 164 states and 164 transitions. [2018-10-10 15:47:59,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 15:47:59,795 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2018-10-10 15:47:59,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:47:59,797 INFO L225 Difference]: With dead ends: 164 [2018-10-10 15:47:59,797 INFO L226 Difference]: Without dead ends: 164 [2018-10-10 15:47:59,798 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-10 15:47:59,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-10-10 15:47:59,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162. [2018-10-10 15:47:59,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2018-10-10 15:47:59,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 162 transitions. [2018-10-10 15:47:59,809 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 162 transitions. Word has length 158 [2018-10-10 15:47:59,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:47:59,810 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 162 transitions. [2018-10-10 15:47:59,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 15:47:59,810 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 162 transitions. [2018-10-10 15:47:59,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-10-10 15:47:59,813 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:47:59,813 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 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, 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, 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, 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, 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, 1, 1] [2018-10-10 15:47:59,814 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:47:59,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:47:59,815 INFO L82 PathProgramCache]: Analyzing trace with hash -271826770, now seen corresponding path program 3 times [2018-10-10 15:47:59,816 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:47:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:48:00,006 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:48:00,006 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:48:00,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-10-10 15:48:00,007 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 15:48:00,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 15:48:00,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-10 15:48:00,008 INFO L87 Difference]: Start difference. First operand 162 states and 162 transitions. Second operand 7 states. [2018-10-10 15:48:00,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:48:00,768 INFO L93 Difference]: Finished difference Result 165 states and 165 transitions. [2018-10-10 15:48:00,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-10 15:48:00,774 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2018-10-10 15:48:00,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:48:00,776 INFO L225 Difference]: With dead ends: 165 [2018-10-10 15:48:00,776 INFO L226 Difference]: Without dead ends: 165 [2018-10-10 15:48:00,777 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-10 15:48:00,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-10-10 15:48:00,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2018-10-10 15:48:00,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-10-10 15:48:00,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 165 transitions. [2018-10-10 15:48:00,796 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 165 transitions. Word has length 161 [2018-10-10 15:48:00,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:48:00,796 INFO L481 AbstractCegarLoop]: Abstraction has 165 states and 165 transitions. [2018-10-10 15:48:00,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 15:48:00,797 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 165 transitions. [2018-10-10 15:48:00,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-10-10 15:48:00,803 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:48:00,804 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 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, 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, 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, 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, 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, 1, 1] [2018-10-10 15:48:00,804 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:48:00,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:48:00,805 INFO L82 PathProgramCache]: Analyzing trace with hash -269622763, now seen corresponding path program 4 times [2018-10-10 15:48:00,805 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:48:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:48:01,716 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 9 [2018-10-10 15:48:03,193 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2018-10-10 15:48:03,504 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 30 [2018-10-10 15:48:04,358 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:48:04,359 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:48:04,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-10-10 15:48:04,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-10-10 15:48:04,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-10-10 15:48:04,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=957, Unknown=0, NotChecked=0, Total=1056 [2018-10-10 15:48:04,361 INFO L87 Difference]: Start difference. First operand 165 states and 165 transitions. Second operand 33 states. [2018-10-10 15:48:06,739 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2018-10-10 15:48:08,045 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2018-10-10 15:48:08,416 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2018-10-10 15:48:08,768 WARN L178 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 67 [2018-10-10 15:48:09,125 WARN L178 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 73 [2018-10-10 15:48:09,328 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2018-10-10 15:48:09,531 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2018-10-10 15:48:09,734 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2018-10-10 15:48:09,926 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2018-10-10 15:48:10,139 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2018-10-10 15:48:10,359 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2018-10-10 15:48:10,686 WARN L178 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2018-10-10 15:48:10,962 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2018-10-10 15:48:11,614 WARN L178 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2018-10-10 15:48:11,925 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2018-10-10 15:48:12,174 WARN L178 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2018-10-10 15:48:12,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:48:12,443 INFO L93 Difference]: Finished difference Result 190 states and 190 transitions. [2018-10-10 15:48:12,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-10-10 15:48:12,445 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 164 [2018-10-10 15:48:12,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:48:12,447 INFO L225 Difference]: With dead ends: 190 [2018-10-10 15:48:12,448 INFO L226 Difference]: Without dead ends: 168 [2018-10-10 15:48:12,450 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 5 SyntacticMatches, 10 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=791, Invalid=3115, Unknown=0, NotChecked=0, Total=3906 [2018-10-10 15:48:12,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2018-10-10 15:48:12,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2018-10-10 15:48:12,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-10-10 15:48:12,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 168 transitions. [2018-10-10 15:48:12,456 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 168 transitions. Word has length 164 [2018-10-10 15:48:12,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:48:12,457 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 168 transitions. [2018-10-10 15:48:12,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-10-10 15:48:12,457 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 168 transitions. [2018-10-10 15:48:12,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-10-10 15:48:12,459 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:48:12,460 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 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, 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, 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, 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, 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, 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, 1, 1] [2018-10-10 15:48:12,460 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:48:12,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:48:12,461 INFO L82 PathProgramCache]: Analyzing trace with hash 965440334, now seen corresponding path program 5 times [2018-10-10 15:48:12,461 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:48:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:48:13,154 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:48:13,154 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:48:13,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-10-10 15:48:13,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-10 15:48:13,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-10 15:48:13,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-10 15:48:13,156 INFO L87 Difference]: Start difference. First operand 168 states and 168 transitions. Second operand 8 states. [2018-10-10 15:48:13,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:48:13,244 INFO L93 Difference]: Finished difference Result 132 states and 131 transitions. [2018-10-10 15:48:13,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 15:48:13,245 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 167 [2018-10-10 15:48:13,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:48:13,246 INFO L225 Difference]: With dead ends: 132 [2018-10-10 15:48:13,246 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:48:13,247 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-10 15:48:13,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:48:13,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:48:13,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:48:13,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:48:13,249 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 167 [2018-10-10 15:48:13,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:48:13,249 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:48:13,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-10 15:48:13,249 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:48:13,249 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:48:13,254 INFO L202 PluginConnector]: Adding new model test-bitfields-2.1_false-valid-free.i_19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:48:13 BoogieIcfgContainer [2018-10-10 15:48:13,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:48:13,255 INFO L168 Benchmark]: Toolchain (without parser) took 16628.29 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 125.3 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 327.4 MB). Peak memory consumption was 452.7 MB. Max. memory is 7.1 GB. [2018-10-10 15:48:13,257 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:48:13,257 INFO L168 Benchmark]: Boogie Preprocessor took 82.88 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:48:13,258 INFO L168 Benchmark]: RCFGBuilder took 1194.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-10 15:48:13,259 INFO L168 Benchmark]: TraceAbstraction took 15347.00 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 125.3 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 285.1 MB). Peak memory consumption was 410.4 MB. Max. memory is 7.1 GB. [2018-10-10 15:48:13,262 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.88 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 1194.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15347.00 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 125.3 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 285.1 MB). Peak memory consumption was 410.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 224]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 157 locations, 1 error locations. SAFE Result, 15.2s OverallTime, 6 OverallIterations, 5 TraceHistogramMax, 9.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 773 SDtfs, 1482 SDslu, 2525 SDs, 0 SdLazy, 2254 SolverSat, 229 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 15 SyntacticMatches, 10 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 9.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=168occurred in iteration=5, 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, 6 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 957 NumberOfCodeBlocks, 957 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 951 ConstructedInterpolants, 0 QuantifiedInterpolants, 649448 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 25/75 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/test-bitfields-2.1_false-valid-free.i_19.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-48-13-274.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/test-bitfields-2.1_false-valid-free.i_19.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-48-13-274.csv Received shutdown request...