/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/concurrent_increment.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 14:41:23,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 14:41:23,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 14:41:23,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 14:41:24,005 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-POR-DelaySleep-NoLbe-Random42.epf [2021-06-06 14:41:24,038 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 14:41:24,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 14:41:24,039 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 14:41:24,039 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 14:41:24,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 14:41:24,041 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 14:41:24,041 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 14:41:24,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 14:41:24,042 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 14:41:24,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 14:41:24,043 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 14:41:24,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 14:41:24,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 14:41:24,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 14:41:24,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 14:41:24,044 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 14:41:24,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 14:41:24,044 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 14:41:24,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 14:41:24,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 14:41:24,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 14:41:24,044 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 14:41:24,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 14:41:24,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 14:41:24,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 14:41:24,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 14:41:24,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 14:41:24,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 14:41:24,046 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-06 14:41:24,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 14:41:24,046 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 14:41:24,046 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 14:41:24,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 14:41:24,047 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 14:41:24,047 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-06 14:41:24,047 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 14:41:24,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 14:41:24,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 14:41:24,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 14:41:24,353 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 14:41:24,354 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 14:41:24,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/concurrent_increment.bpl [2021-06-06 14:41:24,355 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/concurrent_increment.bpl' [2021-06-06 14:41:24,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 14:41:24,377 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 14:41:24,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 14:41:24,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 14:41:24,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 14:41:24,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:41:24" (1/1) ... [2021-06-06 14:41:24,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:41:24" (1/1) ... [2021-06-06 14:41:24,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 14:41:24,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 14:41:24,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 14:41:24,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 14:41:24,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:41:24" (1/1) ... [2021-06-06 14:41:24,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:41:24" (1/1) ... [2021-06-06 14:41:24,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:41:24" (1/1) ... [2021-06-06 14:41:24,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:41:24" (1/1) ... [2021-06-06 14:41:24,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:41:24" (1/1) ... [2021-06-06 14:41:24,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:41:24" (1/1) ... [2021-06-06 14:41:24,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:41:24" (1/1) ... [2021-06-06 14:41:24,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 14:41:24,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 14:41:24,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 14:41:24,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 14:41:24,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:41:24" (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 [2021-06-06 14:41:24,489 INFO L124 BoogieDeclarations]: Specification and implementation of procedure dec given in one single declaration [2021-06-06 14:41:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2021-06-06 14:41:24,490 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2021-06-06 14:41:24,490 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 14:41:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 14:41:24,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 14:41:24,490 INFO L124 BoogieDeclarations]: Specification and implementation of procedure inc given in one single declaration [2021-06-06 14:41:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure inc [2021-06-06 14:41:24,491 INFO L138 BoogieDeclarations]: Found implementation of procedure inc [2021-06-06 14:41:24,492 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 14:41:24,642 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 14:41:24,642 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 14:41:24,644 INFO L202 PluginConnector]: Adding new model concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 02:41:24 BoogieIcfgContainer [2021-06-06 14:41:24,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 14:41:24,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 14:41:24,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 14:41:24,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 14:41:24,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:41:24" (1/2) ... [2021-06-06 14:41:24,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d197f87 and model type concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 02:41:24, skipping insertion in model container [2021-06-06 14:41:24,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 02:41:24" (2/2) ... [2021-06-06 14:41:24,652 INFO L111 eAbstractionObserver]: Analyzing ICFG concurrent_increment.bpl [2021-06-06 14:41:24,661 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 14:41:24,661 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 14:41:24,661 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 14:41:24,662 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 14:41:24,706 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,706 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,707 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,707 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,707 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,707 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,708 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,708 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,708 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,708 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,715 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,715 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,715 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,715 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,716 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,716 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,716 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,716 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,716 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,717 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,718 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,723 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:24,732 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-06 14:41:24,751 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-06-06 14:41:24,815 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 14:41:24,816 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 14:41:24,816 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 14:41:24,816 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 14:41:24,816 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 14:41:24,816 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 14:41:24,816 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 14:41:24,816 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-06 14:41:24,842 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 14:41:24,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 14:41:24,846 INFO L82 PathProgramCache]: Analyzing trace with hash -646276028, now seen corresponding path program 1 times [2021-06-06 14:41:24,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 14:41:24,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833429426] [2021-06-06 14:41:24,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 14:41:24,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 14:41:25,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 14:41:25,004 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 14:41:25,004 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833429426] [2021-06-06 14:41:25,005 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833429426] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 14:41:25,005 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106766084] [2021-06-06 14:41:25,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 14:41:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 14:41:25,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 14:41:25,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 14:41:25,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 14:41:25,224 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106766084] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 14:41:25,224 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 14:41:25,224 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2021-06-06 14:41:25,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371255850] [2021-06-06 14:41:25,228 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 14:41:25,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 14:41:25,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 14:41:25,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-06 14:41:25,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:41:25,240 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 14:41:25,246 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 14:41:25,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:41:25,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:41:25,492 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-06 14:41:25,493 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 14:41:25,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 14:41:25,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1651993423, now seen corresponding path program 2 times [2021-06-06 14:41:25,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 14:41:25,494 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704690341] [2021-06-06 14:41:25,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 14:41:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 14:41:25,551 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 14:41:25,551 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 14:41:25,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704690341] [2021-06-06 14:41:25,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704690341] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 14:41:25,552 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940548074] [2021-06-06 14:41:25,552 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 14:41:25,586 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 14:41:25,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 14:41:25,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-06 14:41:25,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 14:41:25,749 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 14:41:25,750 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940548074] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 14:41:25,750 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 14:41:25,750 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-06 14:41:25,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747878130] [2021-06-06 14:41:25,751 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-06 14:41:25,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 14:41:25,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-06 14:41:25,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-06-06 14:41:25,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:41:25,752 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 14:41:25,753 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 14:41:25,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:41:25,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:41:25,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:41:25,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 14:41:26,160 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 14:41:26,161 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 14:41:26,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 14:41:26,161 INFO L82 PathProgramCache]: Analyzing trace with hash 342771210, now seen corresponding path program 3 times [2021-06-06 14:41:26,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 14:41:26,162 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235056433] [2021-06-06 14:41:26,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 14:41:26,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 14:41:26,209 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-06 14:41:26,209 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 14:41:26,209 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235056433] [2021-06-06 14:41:26,209 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235056433] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 14:41:26,209 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600533103] [2021-06-06 14:41:26,210 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 14:41:26,243 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-06 14:41:26,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 14:41:26,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 14:41:26,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 14:41:26,390 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 14:41:26,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600533103] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 14:41:26,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 14:41:26,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-06-06 14:41:26,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452145755] [2021-06-06 14:41:26,392 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-06 14:41:26,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 14:41:26,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-06 14:41:26,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-06-06 14:41:26,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:41:26,393 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 14:41:26,393 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 14:41:26,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:41:26,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 14:41:26,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:41:26,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:41:26,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 14:41:26,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 14:41:26,752 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 14:41:26,753 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 14:41:26,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 14:41:26,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1303027861, now seen corresponding path program 4 times [2021-06-06 14:41:26,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 14:41:26,757 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675957759] [2021-06-06 14:41:26,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 14:41:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 14:41:26,861 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-06 14:41:26,861 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 14:41:26,861 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675957759] [2021-06-06 14:41:26,861 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675957759] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 14:41:26,861 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899935942] [2021-06-06 14:41:26,861 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 14:41:26,898 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 14:41:26,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 14:41:26,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-06 14:41:26,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 14:41:27,073 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 14:41:27,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899935942] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 14:41:27,073 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 14:41:27,073 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 13 [2021-06-06 14:41:27,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31218167] [2021-06-06 14:41:27,074 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-06 14:41:27,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 14:41:27,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-06 14:41:27,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-06-06 14:41:27,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:41:27,075 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 14:41:27,075 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 14:41:27,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:41:27,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 14:41:27,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 14:41:27,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:41:27,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:41:27,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 14:41:27,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 14:41:27,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-06 14:41:27,751 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 14:41:27,751 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 14:41:27,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 14:41:27,752 INFO L82 PathProgramCache]: Analyzing trace with hash -674192705, now seen corresponding path program 1 times [2021-06-06 14:41:27,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 14:41:27,752 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774016517] [2021-06-06 14:41:27,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 14:41:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 14:41:27,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 14:41:27,775 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 14:41:27,775 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774016517] [2021-06-06 14:41:27,775 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774016517] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 14:41:27,775 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549647631] [2021-06-06 14:41:27,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 14:41:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 14:41:27,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-06 14:41:27,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 14:41:27,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 14:41:27,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549647631] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 14:41:27,841 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 14:41:27,842 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-06-06 14:41:27,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432700264] [2021-06-06 14:41:27,842 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-06 14:41:27,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 14:41:27,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-06 14:41:27,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-06 14:41:27,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:41:27,843 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 14:41:27,843 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 14:41:27,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:41:27,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 14:41:27,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 14:41:27,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-06 14:41:27,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:41:27,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:41:27,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 14:41:27,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 14:41:27,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-06 14:41:27,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 14:41:28,145 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 14:41:28,145 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 14:41:28,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 14:41:28,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1475226567, now seen corresponding path program 1 times [2021-06-06 14:41:28,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 14:41:28,146 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950738998] [2021-06-06 14:41:28,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 14:41:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 14:41:28,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 14:41:28,172 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 14:41:28,173 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950738998] [2021-06-06 14:41:28,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950738998] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 14:41:28,173 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 14:41:28,173 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-06 14:41:28,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673957721] [2021-06-06 14:41:28,173 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-06 14:41:28,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 14:41:28,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-06 14:41:28,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-06 14:41:28,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:41:28,174 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 14:41:28,174 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 14:41:28,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:41:28,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 14:41:28,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 14:41:28,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-06 14:41:28,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 14:41:28,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:41:28,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:41:28,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 14:41:28,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 14:41:28,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-06 14:41:28,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 14:41:28,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 14:41:28,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-06 14:41:28,256 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-06 14:41:28,258 INFO L202 PluginConnector]: Adding new model concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.06 02:41:28 BasicIcfg [2021-06-06 14:41:28,258 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-06 14:41:28,258 INFO L168 Benchmark]: Toolchain (without parser) took 3881.03 ms. Allocated memory is still 373.3 MB. Free memory was 352.7 MB in the beginning and 188.0 MB in the end (delta: 164.7 MB). Peak memory consumption was 164.0 MB. Max. memory is 16.0 GB. [2021-06-06 14:41:28,258 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 373.3 MB. Free memory was 353.8 MB in the beginning and 353.7 MB in the end (delta: 71.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-06 14:41:28,259 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.70 ms. Allocated memory is still 373.3 MB. Free memory was 352.6 MB in the beginning and 351.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-06 14:41:28,259 INFO L168 Benchmark]: Boogie Preprocessor took 15.77 ms. Allocated memory is still 373.3 MB. Free memory was 351.2 MB in the beginning and 350.3 MB in the end (delta: 884.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-06 14:41:28,259 INFO L168 Benchmark]: RCFGBuilder took 222.65 ms. Allocated memory is still 373.3 MB. Free memory was 350.2 MB in the beginning and 340.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-06 14:41:28,259 INFO L168 Benchmark]: TraceAbstraction took 3611.53 ms. Allocated memory is still 373.3 MB. Free memory was 339.9 MB in the beginning and 188.0 MB in the end (delta: 151.9 MB). Peak memory consumption was 151.4 MB. Max. memory is 16.0 GB. [2021-06-06 14:41:28,259 INFO L339 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 0.15 ms. Allocated memory is still 373.3 MB. Free memory was 353.8 MB in the beginning and 353.7 MB in the end (delta: 71.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.70 ms. Allocated memory is still 373.3 MB. Free memory was 352.6 MB in the beginning and 351.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.77 ms. Allocated memory is still 373.3 MB. Free memory was 351.2 MB in the beginning and 350.3 MB in the end (delta: 884.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 222.65 ms. Allocated memory is still 373.3 MB. Free memory was 350.2 MB in the beginning and 340.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3611.53 ms. Allocated memory is still 373.3 MB. Free memory was 339.9 MB in the beginning and 188.0 MB in the end (delta: 151.9 MB). Peak memory consumption was 151.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1674, positive: 1313, positive conditional: 1313, positive unconditional: 0, negative: 361, negative conditional: 361, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1313, positive: 1313, positive conditional: 1313, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1313, positive: 1313, positive conditional: 0, positive unconditional: 1313, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 67, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 67, positive: 65, positive conditional: 0, positive unconditional: 65, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1313, positive: 1246, positive conditional: 0, positive unconditional: 1246, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 67, unknown conditional: 0, unknown unconditional: 67] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 361 - PositiveResult [Line: 25]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 35 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3468.6ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.7ms, PartialOrderReductionTime: 1019.2ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.9ms SsaConstructionTime, 105.2ms SatisfiabilityAnalysisTime, 973.5ms InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 834 SizeOfPredicates, 12 NumberOfNonLiveVariables, 200 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 23/79 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...