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/cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 20:59:45,780 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 20:59:45,783 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 20:59:45,795 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 20:59:45,795 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 20:59:45,796 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 20:59:45,798 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 20:59:45,800 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 20:59:45,801 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 20:59:45,802 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 20:59:45,803 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 20:59:45,803 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 20:59:45,804 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 20:59:45,805 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 20:59:45,807 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 20:59:45,807 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 20:59:45,808 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 20:59:45,810 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 20:59:45,812 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 20:59:45,814 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 20:59:45,815 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 20:59:45,816 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 20:59:45,819 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-12 20:59:45,828 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-12 20:59:45,837 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 20:59:45,838 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 20:59:45,838 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 20:59:45,839 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 20:59:45,839 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 20:59:45,839 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 20:59:45,840 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 20:59:45,840 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 20:59:45,840 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 20:59:45,841 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 20:59:45,841 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 20:59:45,841 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 20:59:45,841 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 20:59:45,842 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 20:59:45,843 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 20:59:45,884 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 20:59:45,897 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 20:59:45,900 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 20:59:45,902 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 20:59:45,903 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 20:59:45,903 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl [2018-10-12 20:59:45,904 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl' [2018-10-12 20:59:45,966 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 20:59:45,968 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 20:59:45,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 20:59:45,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 20:59:45,969 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 20:59:45,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:59:45" (1/1) ... [2018-10-12 20:59:45,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:59:45" (1/1) ... [2018-10-12 20:59:46,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:59:45" (1/1) ... [2018-10-12 20:59:46,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:59:45" (1/1) ... [2018-10-12 20:59:46,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:59:45" (1/1) ... [2018-10-12 20:59:46,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:59:45" (1/1) ... [2018-10-12 20:59:46,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:59:45" (1/1) ... [2018-10-12 20:59:46,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 20:59:46,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 20:59:46,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 20:59:46,030 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 20:59:46,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:59:45" (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 [2018-10-12 20:59:46,093 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 20:59:46,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 20:59:46,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 20:59:46,692 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 20:59:46,693 INFO L202 PluginConnector]: Adding new model cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:59:46 BoogieIcfgContainer [2018-10-12 20:59:46,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 20:59:46,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 20:59:46,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 20:59:46,701 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 20:59:46,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:59:45" (1/2) ... [2018-10-12 20:59:46,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cce64d and model type cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:59:46, skipping insertion in model container [2018-10-12 20:59:46,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:59:46" (2/2) ... [2018-10-12 20:59:46,705 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl [2018-10-12 20:59:46,717 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 20:59:46,728 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 20:59:46,746 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 20:59:46,781 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 20:59:46,782 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 20:59:46,782 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 20:59:46,783 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 20:59:46,783 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 20:59:46,783 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 20:59:46,783 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 20:59:46,783 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 20:59:46,783 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 20:59:46,810 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2018-10-12 20:59:46,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-10-12 20:59:46,831 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:59:46,832 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] [2018-10-12 20:59:46,833 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:59:46,841 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:59:46,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1037118093, now seen corresponding path program 1 times [2018-10-12 20:59:46,907 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:59:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:59:47,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:59:47,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 20:59:47,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-12 20:59:47,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-12 20:59:47,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-12 20:59:47,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2018-10-12 20:59:47,923 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 13 states. [2018-10-12 20:59:48,407 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-12 20:59:49,332 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2018-10-12 20:59:49,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:59:49,457 INFO L93 Difference]: Finished difference Result 120 states and 120 transitions. [2018-10-12 20:59:49,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-12 20:59:49,460 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 65 [2018-10-12 20:59:49,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:59:49,484 INFO L225 Difference]: With dead ends: 120 [2018-10-12 20:59:49,484 INFO L226 Difference]: Without dead ends: 120 [2018-10-12 20:59:49,487 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=190, Invalid=410, Unknown=0, NotChecked=0, Total=600 [2018-10-12 20:59:49,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-10-12 20:59:49,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 94. [2018-10-12 20:59:49,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-10-12 20:59:49,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2018-10-12 20:59:49,549 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 65 [2018-10-12 20:59:49,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:59:49,550 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2018-10-12 20:59:49,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-12 20:59:49,550 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2018-10-12 20:59:49,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-10-12 20:59:49,555 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:59:49,555 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 20:59:49,556 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:59:49,556 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:59:49,556 INFO L82 PathProgramCache]: Analyzing trace with hash 2049876257, now seen corresponding path program 1 times [2018-10-12 20:59:49,558 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:59:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:59:50,733 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:59:50,734 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:59:50,734 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-10-12 20:59:50,736 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-12 20:59:50,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-12 20:59:50,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2018-10-12 20:59:50,740 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand 21 states. [2018-10-12 20:59:51,935 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-10-12 20:59:52,228 WARN L178 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-10-12 20:59:52,567 WARN L178 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2018-10-12 20:59:52,943 WARN L178 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2018-10-12 20:59:53,325 WARN L178 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2018-10-12 20:59:53,718 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2018-10-12 20:59:54,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:59:54,614 INFO L93 Difference]: Finished difference Result 148 states and 148 transitions. [2018-10-12 20:59:54,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-10-12 20:59:54,615 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 93 [2018-10-12 20:59:54,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:59:54,618 INFO L225 Difference]: With dead ends: 148 [2018-10-12 20:59:54,618 INFO L226 Difference]: Without dead ends: 148 [2018-10-12 20:59:54,619 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=386, Invalid=1336, Unknown=0, NotChecked=0, Total=1722 [2018-10-12 20:59:54,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-10-12 20:59:54,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 122. [2018-10-12 20:59:54,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-10-12 20:59:54,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 122 transitions. [2018-10-12 20:59:54,631 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 122 transitions. Word has length 93 [2018-10-12 20:59:54,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:59:54,632 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 122 transitions. [2018-10-12 20:59:54,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-10-12 20:59:54,632 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 122 transitions. [2018-10-12 20:59:54,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-10-12 20:59:54,636 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:59:54,637 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 20:59:54,637 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:59:54,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:59:54,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1137886257, now seen corresponding path program 2 times [2018-10-12 20:59:54,638 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:59:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:59:56,418 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:59:56,419 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:59:56,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-10-12 20:59:56,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-10-12 20:59:56,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-10-12 20:59:56,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1181, Unknown=0, NotChecked=0, Total=1260 [2018-10-12 20:59:56,421 INFO L87 Difference]: Start difference. First operand 122 states and 122 transitions. Second operand 36 states. [2018-10-12 20:59:57,976 WARN L178 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2018-10-12 20:59:58,422 WARN L178 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2018-10-12 20:59:58,764 WARN L178 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2018-10-12 20:59:59,114 WARN L178 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2018-10-12 20:59:59,499 WARN L178 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 100 [2018-10-12 20:59:59,893 WARN L178 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 104 [2018-10-12 21:00:00,441 WARN L178 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 117 [2018-10-12 21:00:01,042 WARN L178 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 121 [2018-10-12 21:00:01,498 WARN L178 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 118 [2018-10-12 21:00:02,194 WARN L178 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 131 [2018-10-12 21:00:02,750 WARN L178 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 134 [2018-10-12 21:00:03,539 WARN L178 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 141 [2018-10-12 21:00:04,234 WARN L178 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 127 [2018-10-12 21:00:04,694 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2018-10-12 21:00:04,948 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2018-10-12 21:00:05,160 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2018-10-12 21:00:05,475 WARN L178 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2018-10-12 21:00:05,708 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2018-10-12 21:00:05,998 WARN L178 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2018-10-12 21:00:06,321 WARN L178 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2018-10-12 21:00:06,699 WARN L178 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2018-10-12 21:00:07,075 WARN L178 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2018-10-12 21:00:07,372 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2018-10-12 21:00:07,744 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2018-10-12 21:00:08,077 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2018-10-12 21:00:08,613 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2018-10-12 21:00:08,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:00:08,741 INFO L93 Difference]: Finished difference Result 176 states and 176 transitions. [2018-10-12 21:00:08,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-10-12 21:00:08,741 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 121 [2018-10-12 21:00:08,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:00:08,744 INFO L225 Difference]: With dead ends: 176 [2018-10-12 21:00:08,744 INFO L226 Difference]: Without dead ends: 176 [2018-10-12 21:00:08,747 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=891, Invalid=4659, Unknown=0, NotChecked=0, Total=5550 [2018-10-12 21:00:08,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-10-12 21:00:08,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 150. [2018-10-12 21:00:08,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-10-12 21:00:08,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 150 transitions. [2018-10-12 21:00:08,762 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 150 transitions. Word has length 121 [2018-10-12 21:00:08,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:00:08,762 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 150 transitions. [2018-10-12 21:00:08,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-10-12 21:00:08,763 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 150 transitions. [2018-10-12 21:00:08,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-10-12 21:00:08,765 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:00:08,765 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 21:00:08,765 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:00:08,766 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:00:08,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1492002173, now seen corresponding path program 3 times [2018-10-12 21:00:08,767 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:00:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:00:10,374 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-12 21:00:10,375 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:00:10,375 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2018-10-12 21:00:10,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-10-12 21:00:10,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-10-12 21:00:10,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1461, Unknown=0, NotChecked=0, Total=1560 [2018-10-12 21:00:10,377 INFO L87 Difference]: Start difference. First operand 150 states and 150 transitions. Second operand 40 states. [2018-10-12 21:00:11,464 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2018-10-12 21:00:11,762 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2018-10-12 21:00:12,088 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2018-10-12 21:00:12,349 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2018-10-12 21:00:12,567 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2018-10-12 21:00:12,944 WARN L178 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2018-10-12 21:00:13,210 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2018-10-12 21:00:13,715 WARN L178 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2018-10-12 21:00:14,043 WARN L178 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 93 [2018-10-12 21:00:14,389 WARN L178 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 103 [2018-10-12 21:00:14,805 WARN L178 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 120 [2018-10-12 21:00:15,248 WARN L178 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 122 [2018-10-12 21:00:15,753 WARN L178 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 125 [2018-10-12 21:00:16,240 WARN L178 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 128 [2018-10-12 21:00:16,818 WARN L178 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 133 [2018-10-12 21:00:17,291 WARN L178 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 127 [2018-10-12 21:00:17,551 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2018-10-12 21:00:17,782 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2018-10-12 21:00:17,973 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2018-10-12 21:00:18,144 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2018-10-12 21:00:18,431 WARN L178 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2018-10-12 21:00:18,729 WARN L178 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2018-10-12 21:00:19,074 WARN L178 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 94 [2018-10-12 21:00:19,536 WARN L178 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 99 [2018-10-12 21:00:20,167 WARN L178 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 102 [2018-10-12 21:00:20,541 WARN L178 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2018-10-12 21:00:20,822 WARN L178 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2018-10-12 21:00:21,074 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2018-10-12 21:00:21,305 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2018-10-12 21:00:21,505 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2018-10-12 21:00:21,824 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2018-10-12 21:00:22,104 WARN L178 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2018-10-12 21:00:22,377 WARN L178 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2018-10-12 21:00:22,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:00:22,391 INFO L93 Difference]: Finished difference Result 148 states and 148 transitions. [2018-10-12 21:00:22,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-10-12 21:00:22,392 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 149 [2018-10-12 21:00:22,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:00:22,393 INFO L225 Difference]: With dead ends: 148 [2018-10-12 21:00:22,393 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 21:00:22,396 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 911 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=1370, Invalid=5602, Unknown=0, NotChecked=0, Total=6972 [2018-10-12 21:00:22,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 21:00:22,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 21:00:22,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 21:00:22,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 21:00:22,397 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 149 [2018-10-12 21:00:22,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:00:22,397 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 21:00:22,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-10-12 21:00:22,398 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 21:00:22,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 21:00:22,403 INFO L202 PluginConnector]: Adding new model cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 09:00:22 BoogieIcfgContainer [2018-10-12 21:00:22,403 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 21:00:22,404 INFO L168 Benchmark]: Toolchain (without parser) took 36437.25 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 368.6 MB). Free memory was 1.5 GB in the beginning and 962.0 MB in the end (delta: 492.6 MB). Peak memory consumption was 861.2 MB. Max. memory is 7.1 GB. [2018-10-12 21:00:22,406 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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. [2018-10-12 21:00:22,406 INFO L168 Benchmark]: Boogie Preprocessor took 59.74 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. [2018-10-12 21:00:22,407 INFO L168 Benchmark]: RCFGBuilder took 664.23 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. [2018-10-12 21:00:22,408 INFO L168 Benchmark]: TraceAbstraction took 35708.95 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 368.6 MB). Free memory was 1.4 GB in the beginning and 962.0 MB in the end (delta: 460.9 MB). Peak memory consumption was 829.4 MB. Max. memory is 7.1 GB. [2018-10-12 21:00:22,411 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 0.20 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 59.74 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 664.23 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 35708.95 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 368.6 MB). Free memory was 1.4 GB in the beginning and 962.0 MB in the end (delta: 460.9 MB). Peak memory consumption was 829.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 166]: 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, 85 locations, 1 error locations. SAFE Result, 35.6s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 29.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 287 SDtfs, 4199 SDslu, 3542 SDs, 0 SdLazy, 3819 SolverSat, 256 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1720 ImplicationChecksByTransitivity, 27.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred in iteration=3, 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, 4 MinimizatonAttempts, 78 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 428 NumberOfCodeBlocks, 428 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 424 ConstructedInterpolants, 0 QuantifiedInterpolants, 729204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 6/178 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/cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_21-00-22-423.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_21-00-22-423.csv Received shutdown request...