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/add_last-alloca_true-valid-memsafety_true-termination.i_11.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:25:53,740 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:25:53,742 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:25:53,760 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:25:53,761 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:25:53,762 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:25:53,763 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:25:53,765 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:25:53,767 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:25:53,768 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:25:53,777 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:25:53,778 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:25:53,781 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:25:53,782 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:25:53,783 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:25:53,784 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:25:53,787 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:25:53,789 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:25:53,795 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:25:53,799 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:25:53,800 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:25:53,805 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:25:53,807 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-10 15:25:53,820 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 15:25:53,833 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:25:53,834 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:25:53,835 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:25:53,835 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:25:53,835 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:25:53,835 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:25:53,836 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:25:53,836 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:25:53,836 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:25:53,836 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:25:53,837 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:25:53,837 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:25:53,837 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:25:53,838 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:25:53,838 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:25:53,881 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:25:53,896 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:25:53,902 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:25:53,903 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:25:53,904 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:25:53,905 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/add_last-alloca_true-valid-memsafety_true-termination.i_11.bpl [2018-10-10 15:25:53,905 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/add_last-alloca_true-valid-memsafety_true-termination.i_11.bpl' [2018-10-10 15:25:53,988 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:25:53,990 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:25:53,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:25:53,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:25:53,991 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:25:54,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "add_last-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:25:53" (1/1) ... [2018-10-10 15:25:54,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "add_last-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:25:53" (1/1) ... [2018-10-10 15:25:54,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "add_last-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:25:53" (1/1) ... [2018-10-10 15:25:54,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "add_last-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:25:53" (1/1) ... [2018-10-10 15:25:54,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "add_last-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:25:53" (1/1) ... [2018-10-10 15:25:54,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "add_last-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:25:53" (1/1) ... [2018-10-10 15:25:54,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "add_last-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:25:53" (1/1) ... [2018-10-10 15:25:54,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:25:54,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:25:54,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:25:54,059 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:25:54,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "add_last-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:25:53" (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 15:25:54,142 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:25:54,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:25:54,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:25:54,739 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:25:54,740 INFO L202 PluginConnector]: Adding new model add_last-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:25:54 BoogieIcfgContainer [2018-10-10 15:25:54,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:25:54,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:25:54,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:25:54,744 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:25:54,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "add_last-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:25:53" (1/2) ... [2018-10-10 15:25:54,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54462da7 and model type add_last-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:25:54, skipping insertion in model container [2018-10-10 15:25:54,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "add_last-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:25:54" (2/2) ... [2018-10-10 15:25:54,747 INFO L112 eAbstractionObserver]: Analyzing ICFG add_last-alloca_true-valid-memsafety_true-termination.i_11.bpl [2018-10-10 15:25:54,757 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:25:54,765 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:25:54,781 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:25:54,809 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:25:54,810 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:25:54,810 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:25:54,810 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:25:54,810 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:25:54,810 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:25:54,811 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:25:54,811 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:25:54,811 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:25:54,830 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-10-10 15:25:54,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-10-10 15:25:54,841 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:25:54,842 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] [2018-10-10 15:25:54,843 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:25:54,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:25:54,849 INFO L82 PathProgramCache]: Analyzing trace with hash -467121395, now seen corresponding path program 1 times [2018-10-10 15:25:54,897 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:25:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:25:55,679 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 15:25:55,682 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:25:55,683 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-10-10 15:25:55,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-10 15:25:55,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-10 15:25:55,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-10-10 15:25:55,709 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 10 states. [2018-10-10 15:25:56,573 WARN L178 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-10-10 15:25:56,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:25:56,910 INFO L93 Difference]: Finished difference Result 159 states and 159 transitions. [2018-10-10 15:25:56,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-10 15:25:56,914 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 64 [2018-10-10 15:25:56,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:25:56,934 INFO L225 Difference]: With dead ends: 159 [2018-10-10 15:25:56,934 INFO L226 Difference]: Without dead ends: 159 [2018-10-10 15:25:56,937 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2018-10-10 15:25:56,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-10-10 15:25:56,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 113. [2018-10-10 15:25:56,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-10-10 15:25:56,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 113 transitions. [2018-10-10 15:25:56,991 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 113 transitions. Word has length 64 [2018-10-10 15:25:56,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:25:56,992 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 113 transitions. [2018-10-10 15:25:56,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-10 15:25:56,993 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2018-10-10 15:25:56,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-10-10 15:25:56,997 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:25:56,999 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:25:56,999 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:25:57,000 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:25:57,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1063587003, now seen corresponding path program 1 times [2018-10-10 15:25:57,001 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:25:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:25:57,517 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:25:57,518 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:25:57,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-10-10 15:25:57,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-10 15:25:57,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-10 15:25:57,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-10-10 15:25:57,521 INFO L87 Difference]: Start difference. First operand 113 states and 113 transitions. Second operand 11 states. [2018-10-10 15:25:58,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:25:58,315 INFO L93 Difference]: Finished difference Result 207 states and 207 transitions. [2018-10-10 15:25:58,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-10 15:25:58,316 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 112 [2018-10-10 15:25:58,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:25:58,319 INFO L225 Difference]: With dead ends: 207 [2018-10-10 15:25:58,320 INFO L226 Difference]: Without dead ends: 207 [2018-10-10 15:25:58,323 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2018-10-10 15:25:58,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2018-10-10 15:25:58,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 161. [2018-10-10 15:25:58,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-10-10 15:25:58,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 161 transitions. [2018-10-10 15:25:58,345 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 161 transitions. Word has length 112 [2018-10-10 15:25:58,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:25:58,346 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 161 transitions. [2018-10-10 15:25:58,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-10 15:25:58,346 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 161 transitions. [2018-10-10 15:25:58,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-10-10 15:25:58,352 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:25:58,352 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:25:58,353 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:25:58,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:25:58,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1681345405, now seen corresponding path program 2 times [2018-10-10 15:25:58,354 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:25:58,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:25:58,777 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 38 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:25:58,777 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:25:58,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-10-10 15:25:58,778 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-10 15:25:58,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-10 15:25:58,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2018-10-10 15:25:58,779 INFO L87 Difference]: Start difference. First operand 161 states and 161 transitions. Second operand 13 states. [2018-10-10 15:25:59,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:25:59,868 INFO L93 Difference]: Finished difference Result 205 states and 205 transitions. [2018-10-10 15:25:59,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-10 15:25:59,869 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 160 [2018-10-10 15:25:59,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:25:59,871 INFO L225 Difference]: With dead ends: 205 [2018-10-10 15:25:59,871 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:25:59,873 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=244, Invalid=686, Unknown=0, NotChecked=0, Total=930 [2018-10-10 15:25:59,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:25:59,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:25:59,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:25:59,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:25:59,874 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 160 [2018-10-10 15:25:59,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:25:59,875 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:25:59,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-10 15:25:59,875 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:25:59,876 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:25:59,881 INFO L202 PluginConnector]: Adding new model add_last-alloca_true-valid-memsafety_true-termination.i_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:25:59 BoogieIcfgContainer [2018-10-10 15:25:59,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:25:59,882 INFO L168 Benchmark]: Toolchain (without parser) took 5893.82 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 383.3 MB). Peak memory consumption was 383.3 MB. Max. memory is 7.1 GB. [2018-10-10 15:25:59,884 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 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 15:25:59,884 INFO L168 Benchmark]: Boogie Preprocessor took 66.28 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 15:25:59,885 INFO L168 Benchmark]: RCFGBuilder took 680.92 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-10 15:25:59,886 INFO L168 Benchmark]: TraceAbstraction took 5140.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 351.6 MB). Peak memory consumption was 351.6 MB. Max. memory is 7.1 GB. [2018-10-10 15:25:59,890 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 0.19 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 66.28 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 680.92 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5140.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 351.6 MB). Peak memory consumption was 351.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 131]: 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, 76 locations, 1 error locations. SAFE Result, 5.0s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 3.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 330 SDtfs, 1962 SDslu, 1197 SDs, 0 SdLazy, 724 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred in iteration=2, 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, 3 MinimizatonAttempts, 92 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 336 NumberOfCodeBlocks, 336 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 333 ConstructedInterpolants, 0 QuantifiedInterpolants, 215685 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 38/165 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/add_last-alloca_true-valid-memsafety_true-termination.i_11.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-25-59-901.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/add_last-alloca_true-valid-memsafety_true-termination.i_11.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-25-59-901.csv Received shutdown request...