/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf -i ../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d9e330d [2020-02-10 22:32:14,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-02-10 22:32:14,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-02-10 22:32:14,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-02-10 22:32:14,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-02-10 22:32:14,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-02-10 22:32:14,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-02-10 22:32:14,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-02-10 22:32:14,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-02-10 22:32:14,456 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-02-10 22:32:14,457 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-02-10 22:32:14,458 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-02-10 22:32:14,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-02-10 22:32:14,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-02-10 22:32:14,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-02-10 22:32:14,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-02-10 22:32:14,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-02-10 22:32:14,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-02-10 22:32:14,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-02-10 22:32:14,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-02-10 22:32:14,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-02-10 22:32:14,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-02-10 22:32:14,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-02-10 22:32:14,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-02-10 22:32:14,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-02-10 22:32:14,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-02-10 22:32:14,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-02-10 22:32:14,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-02-10 22:32:14,489 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf [2020-02-10 22:32:14,502 INFO L113 SettingsManager]: Loading preferences was successful [2020-02-10 22:32:14,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-02-10 22:32:14,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-02-10 22:32:14,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-02-10 22:32:14,504 INFO L138 SettingsManager]: * Use SBE=true [2020-02-10 22:32:14,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-02-10 22:32:14,505 INFO L138 SettingsManager]: * sizeof long=4 [2020-02-10 22:32:14,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-02-10 22:32:14,505 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-02-10 22:32:14,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-02-10 22:32:14,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-02-10 22:32:14,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-02-10 22:32:14,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-02-10 22:32:14,506 INFO L138 SettingsManager]: * sizeof long double=12 [2020-02-10 22:32:14,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-02-10 22:32:14,506 INFO L138 SettingsManager]: * Use constant arrays=true [2020-02-10 22:32:14,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-02-10 22:32:14,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-02-10 22:32:14,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-02-10 22:32:14,507 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-02-10 22:32:14,507 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-02-10 22:32:14,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-02-10 22:32:14,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-02-10 22:32:14,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-02-10 22:32:14,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-02-10 22:32:14,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-02-10 22:32:14,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-02-10 22:32:14,509 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-02-10 22:32:14,509 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-02-10 22:32:14,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-02-10 22:32:14,509 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-02-10 22:32:14,510 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-02-10 22:32:14,818 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-02-10 22:32:14,843 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-02-10 22:32:14,846 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-02-10 22:32:14,848 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-02-10 22:32:14,849 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-02-10 22:32:14,850 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl [2020-02-10 22:32:14,850 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl' [2020-02-10 22:32:14,892 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-02-10 22:32:14,898 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-02-10 22:32:14,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-02-10 22:32:14,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-02-10 22:32:14,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-02-10 22:32:14,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:14" (1/1) ... [2020-02-10 22:32:14,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:14" (1/1) ... [2020-02-10 22:32:14,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-02-10 22:32:14,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-02-10 22:32:14,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-02-10 22:32:14,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-02-10 22:32:14,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:14" (1/1) ... [2020-02-10 22:32:14,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:14" (1/1) ... [2020-02-10 22:32:14,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:14" (1/1) ... [2020-02-10 22:32:14,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:14" (1/1) ... [2020-02-10 22:32:14,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:14" (1/1) ... [2020-02-10 22:32:14,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:14" (1/1) ... [2020-02-10 22:32:14,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:14" (1/1) ... [2020-02-10 22:32:14,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-02-10 22:32:14,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-02-10 22:32:14,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-02-10 22:32:14,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-02-10 22:32:14,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-02-10 22:32:15,044 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2020-02-10 22:32:15,044 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2020-02-10 22:32:15,044 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2020-02-10 22:32:15,045 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2020-02-10 22:32:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2020-02-10 22:32:15,045 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2020-02-10 22:32:15,045 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2020-02-10 22:32:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2020-02-10 22:32:15,046 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2020-02-10 22:32:15,046 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2020-02-10 22:32:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2020-02-10 22:32:15,046 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2020-02-10 22:32:15,047 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2020-02-10 22:32:15,047 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2020-02-10 22:32:15,047 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2020-02-10 22:32:15,048 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-02-10 22:32:15,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-02-10 22:32:15,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-02-10 22:32:15,048 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2020-02-10 22:32:15,049 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2020-02-10 22:32:15,049 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2020-02-10 22:32:15,050 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2020-02-10 22:32:15,056 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2020-02-10 22:32:15,057 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2020-02-10 22:32:15,057 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2020-02-10 22:32:15,058 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2020-02-10 22:32:15,058 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2020-02-10 22:32:15,059 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-02-10 22:32:15,383 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-02-10 22:32:15,383 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-02-10 22:32:15,387 INFO L202 PluginConnector]: Adding new model example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:32:15 BoogieIcfgContainer [2020-02-10 22:32:15,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-02-10 22:32:15,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-02-10 22:32:15,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-02-10 22:32:15,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-02-10 22:32:15,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:14" (1/2) ... [2020-02-10 22:32:15,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6efdfd69 and model type example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:32:15, skipping insertion in model container [2020-02-10 22:32:15,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:32:15" (2/2) ... [2020-02-10 22:32:15,396 INFO L109 eAbstractionObserver]: Analyzing ICFG example_8.bpl [2020-02-10 22:32:15,410 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-02-10 22:32:15,410 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-02-10 22:32:15,419 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-02-10 22:32:15,420 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-02-10 22:32:15,662 INFO L251 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-02-10 22:32:15,683 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-02-10 22:32:15,683 INFO L376 AbstractCegarLoop]: Hoare is true [2020-02-10 22:32:15,683 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-02-10 22:32:15,684 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-02-10 22:32:15,684 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-02-10 22:32:15,684 INFO L380 AbstractCegarLoop]: Difference is false [2020-02-10 22:32:15,684 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-02-10 22:32:15,684 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-02-10 22:32:15,697 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 99 transitions [2020-02-10 22:32:29,934 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 68819 states. [2020-02-10 22:32:29,936 INFO L276 IsEmpty]: Start isEmpty. Operand 68819 states. [2020-02-10 22:32:30,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-02-10 22:32:30,293 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 22:32:30,294 INFO L415 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] [2020-02-10 22:32:30,295 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:32:30,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:32:30,302 INFO L82 PathProgramCache]: Analyzing trace with hash 322589815, now seen corresponding path program 1 times [2020-02-10 22:32:30,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:32:30,311 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819805621] [2020-02-10 22:32:30,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:32:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:32:30,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:32:30,480 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819805621] [2020-02-10 22:32:30,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:32:30,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:32:30,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1886701034] [2020-02-10 22:32:30,484 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-02-10 22:32:30,492 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-02-10 22:32:33,975 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 13122 states and 69985 transitions. [2020-02-10 22:32:33,975 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-02-10 22:32:34,096 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 9 times. [2020-02-10 22:32:34,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:32:34,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:32:34,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:32:34,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:32:34,114 INFO L87 Difference]: Start difference. First operand 68819 states. Second operand 3 states. [2020-02-10 22:32:34,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 22:32:34,730 INFO L93 Difference]: Finished difference Result 66632 states and 393219 transitions. [2020-02-10 22:32:34,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:32:34,733 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-02-10 22:32:34,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 22:32:35,726 INFO L225 Difference]: With dead ends: 66632 [2020-02-10 22:32:35,726 INFO L226 Difference]: Without dead ends: 66630 [2020-02-10 22:32:35,728 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:32:40,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66630 states. [2020-02-10 22:32:42,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66630 to 66630. [2020-02-10 22:32:42,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66630 states. [2020-02-10 22:32:45,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66630 states to 66630 states and 393217 transitions. [2020-02-10 22:32:45,911 INFO L78 Accepts]: Start accepts. Automaton has 66630 states and 393217 transitions. Word has length 33 [2020-02-10 22:32:45,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 22:32:45,912 INFO L479 AbstractCegarLoop]: Abstraction has 66630 states and 393217 transitions. [2020-02-10 22:32:45,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:32:45,912 INFO L276 IsEmpty]: Start isEmpty. Operand 66630 states and 393217 transitions. [2020-02-10 22:32:46,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-02-10 22:32:46,146 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 22:32:46,146 INFO L415 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] [2020-02-10 22:32:46,147 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:32:46,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:32:46,147 INFO L82 PathProgramCache]: Analyzing trace with hash -469237921, now seen corresponding path program 1 times [2020-02-10 22:32:46,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:32:46,148 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165720769] [2020-02-10 22:32:46,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:32:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:32:46,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:32:46,206 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165720769] [2020-02-10 22:32:46,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:32:46,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:32:46,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1146958001] [2020-02-10 22:32:46,207 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-02-10 22:32:46,210 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-02-10 22:32:47,938 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 13122 states and 69985 transitions. [2020-02-10 22:32:47,938 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-02-10 22:32:48,027 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 14 times. [2020-02-10 22:32:48,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:32:48,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:32:48,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:32:48,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:32:48,030 INFO L87 Difference]: Start difference. First operand 66630 states and 393217 transitions. Second operand 3 states. [2020-02-10 22:32:48,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 22:32:48,735 INFO L93 Difference]: Finished difference Result 59340 states and 340729 transitions. [2020-02-10 22:32:48,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:32:48,736 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-02-10 22:32:48,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 22:32:49,203 INFO L225 Difference]: With dead ends: 59340 [2020-02-10 22:32:49,204 INFO L226 Difference]: Without dead ends: 59340 [2020-02-10 22:32:49,205 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:32:51,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59340 states. [2020-02-10 22:32:56,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59340 to 59340. [2020-02-10 22:32:56,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59340 states. [2020-02-10 22:32:56,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59340 states to 59340 states and 340729 transitions. [2020-02-10 22:32:56,606 INFO L78 Accepts]: Start accepts. Automaton has 59340 states and 340729 transitions. Word has length 33 [2020-02-10 22:32:56,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 22:32:56,607 INFO L479 AbstractCegarLoop]: Abstraction has 59340 states and 340729 transitions. [2020-02-10 22:32:56,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:32:56,607 INFO L276 IsEmpty]: Start isEmpty. Operand 59340 states and 340729 transitions. [2020-02-10 22:32:56,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-02-10 22:32:56,797 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 22:32:56,797 INFO L415 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] [2020-02-10 22:32:56,797 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:32:56,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:32:56,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1980580347, now seen corresponding path program 1 times [2020-02-10 22:32:56,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:32:56,798 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66447860] [2020-02-10 22:32:56,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:32:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:32:56,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:32:56,833 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66447860] [2020-02-10 22:32:56,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:32:56,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:32:56,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2106385013] [2020-02-10 22:32:56,833 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-02-10 22:32:56,837 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-02-10 22:32:58,581 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 13122 states and 69985 transitions. [2020-02-10 22:32:58,582 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-02-10 22:32:58,641 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 16 times. [2020-02-10 22:32:58,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:32:58,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:32:58,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:32:58,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:32:58,642 INFO L87 Difference]: Start difference. First operand 59340 states and 340729 transitions. Second operand 3 states. [2020-02-10 22:32:59,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 22:32:59,134 INFO L93 Difference]: Finished difference Result 43707 states and 246391 transitions. [2020-02-10 22:32:59,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:32:59,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-02-10 22:32:59,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 22:32:59,324 INFO L225 Difference]: With dead ends: 43707 [2020-02-10 22:32:59,324 INFO L226 Difference]: Without dead ends: 43707 [2020-02-10 22:32:59,325 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:33:01,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43707 states. [2020-02-10 22:33:02,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43707 to 43707. [2020-02-10 22:33:02,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43707 states. [2020-02-10 22:33:02,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43707 states to 43707 states and 246391 transitions. [2020-02-10 22:33:02,957 INFO L78 Accepts]: Start accepts. Automaton has 43707 states and 246391 transitions. Word has length 33 [2020-02-10 22:33:02,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 22:33:02,958 INFO L479 AbstractCegarLoop]: Abstraction has 43707 states and 246391 transitions. [2020-02-10 22:33:02,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:33:02,958 INFO L276 IsEmpty]: Start isEmpty. Operand 43707 states and 246391 transitions. [2020-02-10 22:33:03,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-02-10 22:33:03,040 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 22:33:03,040 INFO L415 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] [2020-02-10 22:33:03,040 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:33:03,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:33:03,041 INFO L82 PathProgramCache]: Analyzing trace with hash -876254783, now seen corresponding path program 1 times [2020-02-10 22:33:03,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:33:03,041 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748874557] [2020-02-10 22:33:03,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:33:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:33:03,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:33:03,070 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748874557] [2020-02-10 22:33:03,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:33:03,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:33:03,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [502790359] [2020-02-10 22:33:03,072 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-02-10 22:33:03,075 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-02-10 22:33:05,124 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 13122 states and 69985 transitions. [2020-02-10 22:33:05,124 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-02-10 22:33:05,173 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 15 times. [2020-02-10 22:33:05,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:33:05,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:33:05,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:33:05,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:33:05,174 INFO L87 Difference]: Start difference. First operand 43707 states and 246391 transitions. Second operand 3 states. [2020-02-10 22:33:05,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 22:33:05,553 INFO L93 Difference]: Finished difference Result 32205 states and 178297 transitions. [2020-02-10 22:33:05,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:33:05,556 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-02-10 22:33:05,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 22:33:05,695 INFO L225 Difference]: With dead ends: 32205 [2020-02-10 22:33:05,695 INFO L226 Difference]: Without dead ends: 32205 [2020-02-10 22:33:05,697 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:33:09,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32205 states. [2020-02-10 22:33:10,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32205 to 32205. [2020-02-10 22:33:10,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32205 states. [2020-02-10 22:33:10,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32205 states to 32205 states and 178297 transitions. [2020-02-10 22:33:10,360 INFO L78 Accepts]: Start accepts. Automaton has 32205 states and 178297 transitions. Word has length 33 [2020-02-10 22:33:10,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 22:33:10,361 INFO L479 AbstractCegarLoop]: Abstraction has 32205 states and 178297 transitions. [2020-02-10 22:33:10,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:33:10,361 INFO L276 IsEmpty]: Start isEmpty. Operand 32205 states and 178297 transitions. [2020-02-10 22:33:10,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-02-10 22:33:10,420 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 22:33:10,420 INFO L415 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] [2020-02-10 22:33:10,420 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:33:10,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:33:10,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1891952389, now seen corresponding path program 1 times [2020-02-10 22:33:10,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:33:10,421 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718943492] [2020-02-10 22:33:10,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:33:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:33:10,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:33:10,466 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718943492] [2020-02-10 22:33:10,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:33:10,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:33:10,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [914069134] [2020-02-10 22:33:10,467 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-02-10 22:33:10,470 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-02-10 22:33:12,119 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 13122 states and 69985 transitions. [2020-02-10 22:33:12,120 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-02-10 22:33:12,153 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 16 times. [2020-02-10 22:33:12,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:33:12,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:33:12,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:33:12,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:33:12,154 INFO L87 Difference]: Start difference. First operand 32205 states and 178297 transitions. Second operand 3 states. [2020-02-10 22:33:12,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 22:33:12,308 INFO L93 Difference]: Finished difference Result 24672 states and 133261 transitions. [2020-02-10 22:33:12,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:33:12,309 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-02-10 22:33:12,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 22:33:12,375 INFO L225 Difference]: With dead ends: 24672 [2020-02-10 22:33:12,376 INFO L226 Difference]: Without dead ends: 24672 [2020-02-10 22:33:12,377 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:33:13,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24672 states. [2020-02-10 22:33:14,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24672 to 24672. [2020-02-10 22:33:14,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24672 states. [2020-02-10 22:33:14,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24672 states to 24672 states and 133261 transitions. [2020-02-10 22:33:14,294 INFO L78 Accepts]: Start accepts. Automaton has 24672 states and 133261 transitions. Word has length 33 [2020-02-10 22:33:14,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 22:33:14,294 INFO L479 AbstractCegarLoop]: Abstraction has 24672 states and 133261 transitions. [2020-02-10 22:33:14,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:33:14,294 INFO L276 IsEmpty]: Start isEmpty. Operand 24672 states and 133261 transitions. [2020-02-10 22:33:14,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-02-10 22:33:14,339 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 22:33:14,340 INFO L415 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] [2020-02-10 22:33:14,340 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:33:14,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:33:14,340 INFO L82 PathProgramCache]: Analyzing trace with hash -201567345, now seen corresponding path program 1 times [2020-02-10 22:33:14,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:33:14,341 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052036933] [2020-02-10 22:33:14,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:33:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:33:14,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:33:14,379 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052036933] [2020-02-10 22:33:14,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:33:14,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:33:14,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [828047418] [2020-02-10 22:33:14,382 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-02-10 22:33:14,387 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-02-10 22:33:16,189 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 13122 states and 69985 transitions. [2020-02-10 22:33:16,189 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-02-10 22:33:16,225 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 22 times. [2020-02-10 22:33:16,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:33:16,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:33:16,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:33:16,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:33:16,226 INFO L87 Difference]: Start difference. First operand 24672 states and 133261 transitions. Second operand 3 states. [2020-02-10 22:33:16,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 22:33:16,342 INFO L93 Difference]: Finished difference Result 17820 states and 95581 transitions. [2020-02-10 22:33:16,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:33:16,343 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-02-10 22:33:16,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 22:33:16,391 INFO L225 Difference]: With dead ends: 17820 [2020-02-10 22:33:16,391 INFO L226 Difference]: Without dead ends: 17820 [2020-02-10 22:33:16,391 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:33:17,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17820 states. [2020-02-10 22:33:17,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17820 to 17820. [2020-02-10 22:33:17,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17820 states. [2020-02-10 22:33:17,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17820 states to 17820 states and 95581 transitions. [2020-02-10 22:33:17,681 INFO L78 Accepts]: Start accepts. Automaton has 17820 states and 95581 transitions. Word has length 33 [2020-02-10 22:33:17,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 22:33:17,682 INFO L479 AbstractCegarLoop]: Abstraction has 17820 states and 95581 transitions. [2020-02-10 22:33:17,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:33:17,682 INFO L276 IsEmpty]: Start isEmpty. Operand 17820 states and 95581 transitions. [2020-02-10 22:33:17,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-02-10 22:33:17,712 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 22:33:17,712 INFO L415 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] [2020-02-10 22:33:17,712 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:33:17,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:33:17,713 INFO L82 PathProgramCache]: Analyzing trace with hash 519047745, now seen corresponding path program 1 times [2020-02-10 22:33:17,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:33:17,713 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565540998] [2020-02-10 22:33:17,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:33:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:33:17,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:33:17,741 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565540998] [2020-02-10 22:33:17,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:33:17,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:33:17,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1613428210] [2020-02-10 22:33:17,742 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-02-10 22:33:17,746 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-02-10 22:33:19,486 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 13122 states and 69985 transitions. [2020-02-10 22:33:19,487 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-02-10 22:33:19,521 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 18 times. [2020-02-10 22:33:19,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:33:19,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:33:19,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:33:19,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:33:19,522 INFO L87 Difference]: Start difference. First operand 17820 states and 95581 transitions. Second operand 3 states. [2020-02-10 22:33:19,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 22:33:19,610 INFO L93 Difference]: Finished difference Result 13122 states and 69985 transitions. [2020-02-10 22:33:19,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:33:19,611 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-02-10 22:33:19,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 22:33:19,646 INFO L225 Difference]: With dead ends: 13122 [2020-02-10 22:33:19,646 INFO L226 Difference]: Without dead ends: 13122 [2020-02-10 22:33:19,646 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:33:20,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13122 states. [2020-02-10 22:33:20,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13122 to 13122. [2020-02-10 22:33:20,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13122 states. [2020-02-10 22:33:20,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13122 states to 13122 states and 69985 transitions. [2020-02-10 22:33:20,880 INFO L78 Accepts]: Start accepts. Automaton has 13122 states and 69985 transitions. Word has length 33 [2020-02-10 22:33:20,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 22:33:20,880 INFO L479 AbstractCegarLoop]: Abstraction has 13122 states and 69985 transitions. [2020-02-10 22:33:20,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:33:20,880 INFO L276 IsEmpty]: Start isEmpty. Operand 13122 states and 69985 transitions. [2020-02-10 22:33:20,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-02-10 22:33:20,903 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 22:33:20,903 INFO L415 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] [2020-02-10 22:33:20,903 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:33:20,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:33:20,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1645366767, now seen corresponding path program 1 times [2020-02-10 22:33:20,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:33:20,904 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008668715] [2020-02-10 22:33:20,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:33:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:33:21,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:33:21,651 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008668715] [2020-02-10 22:33:21,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:33:21,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-02-10 22:33:21,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [235813839] [2020-02-10 22:33:21,652 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-02-10 22:33:21,655 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-02-10 22:33:22,932 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 13122 states and 69985 transitions. [2020-02-10 22:33:22,933 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-02-10 22:33:34,467 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 454 times. [2020-02-10 22:33:34,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 257 states [2020-02-10 22:33:34,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:33:34,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 257 interpolants. [2020-02-10 22:33:34,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6307, Invalid=59485, Unknown=0, NotChecked=0, Total=65792 [2020-02-10 22:33:34,494 INFO L87 Difference]: Start difference. First operand 13122 states and 69985 transitions. Second operand 257 states. [2020-02-10 22:34:04,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 22:34:04,051 INFO L93 Difference]: Finished difference Result 13121 states and 69984 transitions. [2020-02-10 22:34:04,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 257 states. [2020-02-10 22:34:04,051 INFO L78 Accepts]: Start accepts. Automaton has 257 states. Word has length 33 [2020-02-10 22:34:04,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 22:34:04,052 INFO L225 Difference]: With dead ends: 13121 [2020-02-10 22:34:04,052 INFO L226 Difference]: Without dead ends: 0 [2020-02-10 22:34:04,056 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55865 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=6564, Invalid=59742, Unknown=0, NotChecked=0, Total=66306 [2020-02-10 22:34:04,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-02-10 22:34:04,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-02-10 22:34:04,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-02-10 22:34:04,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-02-10 22:34:04,057 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2020-02-10 22:34:04,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 22:34:04,057 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-02-10 22:34:04,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 257 states. [2020-02-10 22:34:04,057 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-02-10 22:34:04,057 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-02-10 22:34:04,062 INFO L202 PluginConnector]: Adding new model example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 10:34:04 BasicIcfg [2020-02-10 22:34:04,063 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-02-10 22:34:04,065 INFO L168 Benchmark]: Toolchain (without parser) took 109170.37 ms. Allocated memory was 144.7 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 119.8 MB in the beginning and 1.0 GB in the end (delta: -917.5 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2020-02-10 22:34:04,066 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-02-10 22:34:04,067 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.96 ms. Allocated memory is still 144.7 MB. Free memory was 119.6 MB in the beginning and 117.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2020-02-10 22:34:04,067 INFO L168 Benchmark]: Boogie Preprocessor took 24.81 ms. Allocated memory is still 144.7 MB. Free memory was 117.9 MB in the beginning and 116.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. [2020-02-10 22:34:04,068 INFO L168 Benchmark]: RCFGBuilder took 424.80 ms. Allocated memory is still 144.7 MB. Free memory was 116.6 MB in the beginning and 103.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2020-02-10 22:34:04,069 INFO L168 Benchmark]: TraceAbstraction took 108673.82 ms. Allocated memory was 144.7 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 102.9 MB in the beginning and 1.0 GB in the end (delta: -934.5 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2020-02-10 22:34:04,073 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 144.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 38.96 ms. Allocated memory is still 144.7 MB. Free memory was 119.6 MB in the beginning and 117.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.81 ms. Allocated memory is still 144.7 MB. Free memory was 117.9 MB in the beginning and 116.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 424.80 ms. Allocated memory is still 144.7 MB. Free memory was 116.6 MB in the beginning and 103.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 108673.82 ms. Allocated memory was 144.7 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 102.9 MB in the beginning and 1.0 GB in the end (delta: -934.5 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 29]: 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 9 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. Result: SAFE, OverallTime: 108.3s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 34.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 14.2s, HoareTripleCheckerStatistics: 3072 SDtfs, 3108 SDslu, 158817 SDs, 0 SdLazy, 33969 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 595 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 263 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55865 ImplicationChecksByTransitivity, 12.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68819occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 30.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 256 ConstructedInterpolants, 0 QuantifiedInterpolants, 43968 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...