/usr/bin/java -Xmx8000000000 -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-NewStatesSleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/concurrent_increment.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-14 03:22:01,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-14 03:22:01,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-14 03:22:01,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-14 03:22:01,788 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-NewStatesSleep-NoLbe-Random42.epf [2021-06-14 03:22:01,820 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-14 03:22:01,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-14 03:22:01,820 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-14 03:22:01,821 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-14 03:22:01,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-14 03:22:01,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-14 03:22:01,823 INFO L138 SettingsManager]: * Use SBE=true [2021-06-14 03:22:01,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-14 03:22:01,823 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-14 03:22:01,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-14 03:22:01,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-14 03:22:01,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-14 03:22:01,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-14 03:22:01,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-14 03:22:01,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-14 03:22:01,824 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-14 03:22:01,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-14 03:22:01,825 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-14 03:22:01,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-14 03:22:01,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-14 03:22:01,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-14 03:22:01,825 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-14 03:22:01,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-14 03:22:01,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 03:22:01,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-14 03:22:01,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-14 03:22:01,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-14 03:22:01,826 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-14 03:22:01,833 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-14 03:22:01,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-14 03:22:01,834 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-14 03:22:01,834 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-14 03:22:01,834 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-14 03:22:01,834 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-14 03:22:01,834 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-14 03:22:01,834 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-14 03:22:02,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-14 03:22:02,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-14 03:22:02,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-14 03:22:02,094 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-14 03:22:02,095 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-14 03:22:02,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/concurrent_increment.bpl [2021-06-14 03:22:02,096 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/concurrent_increment.bpl' [2021-06-14 03:22:02,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-14 03:22:02,123 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-14 03:22:02,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-14 03:22:02,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-14 03:22:02,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-14 03:22:02,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:22:02" (1/1) ... [2021-06-14 03:22:02,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:22:02" (1/1) ... [2021-06-14 03:22:02,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-14 03:22:02,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-14 03:22:02,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-14 03:22:02,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-14 03:22:02,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:22:02" (1/1) ... [2021-06-14 03:22:02,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:22:02" (1/1) ... [2021-06-14 03:22:02,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:22:02" (1/1) ... [2021-06-14 03:22:02,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:22:02" (1/1) ... [2021-06-14 03:22:02,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:22:02" (1/1) ... [2021-06-14 03:22:02,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:22:02" (1/1) ... [2021-06-14 03:22:02,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:22:02" (1/1) ... [2021-06-14 03:22:02,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-14 03:22:02,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-14 03:22:02,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-14 03:22:02,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-14 03:22:02,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:22:02" (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 [2021-06-14 03:22:02,203 INFO L124 BoogieDeclarations]: Specification and implementation of procedure dec given in one single declaration [2021-06-14 03:22:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2021-06-14 03:22:02,203 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2021-06-14 03:22:02,203 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-14 03:22:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-14 03:22:02,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-14 03:22:02,204 INFO L124 BoogieDeclarations]: Specification and implementation of procedure inc given in one single declaration [2021-06-14 03:22:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure inc [2021-06-14 03:22:02,204 INFO L138 BoogieDeclarations]: Found implementation of procedure inc [2021-06-14 03:22:02,204 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-14 03:22:02,310 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-14 03:22:02,310 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-14 03:22:02,311 INFO L202 PluginConnector]: Adding new model concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 03:22:02 BoogieIcfgContainer [2021-06-14 03:22:02,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-14 03:22:02,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-14 03:22:02,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-14 03:22:02,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-14 03:22:02,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:22:02" (1/2) ... [2021-06-14 03:22:02,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa0084e and model type concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 03:22:02, skipping insertion in model container [2021-06-14 03:22:02,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 03:22:02" (2/2) ... [2021-06-14 03:22:02,316 INFO L111 eAbstractionObserver]: Analyzing ICFG concurrent_increment.bpl [2021-06-14 03:22:02,319 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-14 03:22:02,319 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-14 03:22:02,320 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-14 03:22:02,320 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-14 03:22:02,333 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,333 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,333 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,333 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,333 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,334 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,334 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,334 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,334 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,334 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,334 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,335 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,335 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,335 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,335 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,335 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,335 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,336 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,336 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,336 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,337 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,347 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 03:22:02,356 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-14 03:22:02,369 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) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-14 03:22:02,398 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-14 03:22:02,398 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-14 03:22:02,398 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-14 03:22:02,398 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-14 03:22:02,398 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-14 03:22:02,398 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-14 03:22:02,398 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-14 03:22:02,398 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-14 03:22:02,466 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 03:22:02,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 03:22:02,470 INFO L82 PathProgramCache]: Analyzing trace with hash -646276028, now seen corresponding path program 1 times [2021-06-14 03:22:02,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 03:22:02,479 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148888163] [2021-06-14 03:22:02,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 03:22:02,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 03:22:02,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 03:22:02,677 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 03:22:02,678 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148888163] [2021-06-14 03:22:02,678 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148888163] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 03:22:02,678 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059480935] [2021-06-14 03:22:02,678 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 [2021-06-14 03:22:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 03:22:02,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-14 03:22:02,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 03:22:02,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 03:22:02,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059480935] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 03:22:02,826 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 03:22:02,826 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2021-06-14 03:22:02,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511686713] [2021-06-14 03:22:02,830 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-14 03:22:02,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 03:22:02,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-14 03:22:02,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-14 03:22:02,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 03:22:02,839 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 03:22:02,841 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) [2021-06-14 03:22:02,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 03:22:02,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 03:22:03,069 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-14 03:22:03,069 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 03:22:03,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 03:22:03,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1651993423, now seen corresponding path program 2 times [2021-06-14 03:22:03,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 03:22:03,070 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800197597] [2021-06-14 03:22:03,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 03:22:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 03:22:03,115 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 03:22:03,118 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 03:22:03,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800197597] [2021-06-14 03:22:03,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800197597] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 03:22:03,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656525919] [2021-06-14 03:22:03,118 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) [2021-06-14 03:22:03,162 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 03:22:03,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 03:22:03,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-14 03:22:03,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 03:22:03,301 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 03:22:03,301 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656525919] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 03:22:03,301 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 03:22:03,302 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-14 03:22:03,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436311141] [2021-06-14 03:22:03,303 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-14 03:22:03,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 03:22:03,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-14 03:22:03,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-06-14 03:22:03,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 03:22:03,307 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 03:22:03,307 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) [2021-06-14 03:22:03,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 03:22:03,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 03:22:03,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 03:22:03,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 03:22:03,664 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 03:22:03,665 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 03:22:03,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 03:22:03,665 INFO L82 PathProgramCache]: Analyzing trace with hash -2078995404, now seen corresponding path program 3 times [2021-06-14 03:22:03,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 03:22:03,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121272186] [2021-06-14 03:22:03,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 03:22:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 03:22:03,717 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-06-14 03:22:03,718 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 03:22:03,718 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121272186] [2021-06-14 03:22:03,718 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121272186] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 03:22:03,718 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470156100] [2021-06-14 03:22:03,718 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) [2021-06-14 03:22:03,766 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-14 03:22:03,766 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 03:22:03,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-14 03:22:03,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 03:22:03,926 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 5 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 03:22:03,926 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470156100] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 03:22:03,926 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 03:22:03,926 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10] total 13 [2021-06-14 03:22:03,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506120584] [2021-06-14 03:22:03,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-14 03:22:03,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 03:22:03,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-14 03:22:03,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-06-14 03:22:03,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 03:22:03,928 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 03:22:03,928 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 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) [2021-06-14 03:22:03,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 03:22:03,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 03:22:03,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 03:22:04,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 03:22:04,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 03:22:04,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 03:22:04,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 03:22:04,365 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 03:22:04,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 03:22:04,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1291587327, now seen corresponding path program 4 times [2021-06-14 03:22:04,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 03:22:04,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769373237] [2021-06-14 03:22:04,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 03:22:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 03:22:04,415 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-06-14 03:22:04,415 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 03:22:04,415 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769373237] [2021-06-14 03:22:04,415 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769373237] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 03:22:04,415 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558503005] [2021-06-14 03:22:04,415 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 [2021-06-14 03:22:04,439 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 03:22:04,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 03:22:04,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-14 03:22:04,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 03:22:04,630 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 5 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 03:22:04,630 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558503005] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 03:22:04,630 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 03:22:04,630 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11] total 15 [2021-06-14 03:22:04,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500197242] [2021-06-14 03:22:04,631 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-14 03:22:04,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 03:22:04,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-14 03:22:04,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-06-14 03:22:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 03:22:04,631 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 03:22:04,632 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 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) [2021-06-14 03:22:04,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 03:22:04,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 03:22:04,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 03:22:04,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 03:22:05,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 03:22:05,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 03:22:05,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-14 03:22:05,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-14 03:22:05,410 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 03:22:05,411 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 03:22:05,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 03:22:05,411 INFO L82 PathProgramCache]: Analyzing trace with hash -674192705, now seen corresponding path program 1 times [2021-06-14 03:22:05,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 03:22:05,411 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915887121] [2021-06-14 03:22:05,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 03:22:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 03:22:05,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 03:22:05,427 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 03:22:05,427 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915887121] [2021-06-14 03:22:05,428 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915887121] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 03:22:05,428 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660768443] [2021-06-14 03:22:05,428 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 [2021-06-14 03:22:05,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 03:22:05,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-14 03:22:05,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 03:22:05,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 03:22:05,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660768443] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 03:22:05,485 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 03:22:05,485 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-06-14 03:22:05,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443843238] [2021-06-14 03:22:05,486 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-14 03:22:05,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 03:22:05,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-14 03:22:05,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-14 03:22:05,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 03:22:05,487 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 03:22:05,487 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) [2021-06-14 03:22:05,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 03:22:05,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 03:22:05,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-14 03:22:05,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-06-14 03:22:05,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 03:22:05,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 03:22:05,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 03:22:05,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-14 03:22:05,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-14 03:22:05,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 03:22:05,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 03:22:05,760 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 03:22:05,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 03:22:05,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1475226567, now seen corresponding path program 1 times [2021-06-14 03:22:05,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 03:22:05,761 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620129715] [2021-06-14 03:22:05,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 03:22:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 03:22:05,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 03:22:05,778 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 03:22:05,778 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620129715] [2021-06-14 03:22:05,778 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620129715] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-14 03:22:05,778 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-14 03:22:05,778 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-14 03:22:05,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960697] [2021-06-14 03:22:05,779 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-14 03:22:05,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 03:22:05,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-14 03:22:05,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-14 03:22:05,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 03:22:05,780 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 03:22:05,780 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) [2021-06-14 03:22:05,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 03:22:05,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 03:22:05,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-14 03:22:05,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-06-14 03:22:05,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 03:22:05,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 03:22:05,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 03:22:05,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 03:22:05,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-14 03:22:05,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 03:22:05,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 03:22:05,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 03:22:05,828 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-14 03:22:05,832 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-14 03:22:05,833 INFO L202 PluginConnector]: Adding new model concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 03:22:05 BasicIcfg [2021-06-14 03:22:05,834 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-14 03:22:05,834 INFO L168 Benchmark]: Toolchain (without parser) took 3711.31 ms. Allocated memory was 188.7 MB in the beginning and 243.3 MB in the end (delta: 54.5 MB). Free memory was 168.9 MB in the beginning and 96.9 MB in the end (delta: 72.0 MB). Peak memory consumption was 126.9 MB. Max. memory is 8.0 GB. [2021-06-14 03:22:05,834 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 188.7 MB. Free memory is still 169.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-14 03:22:05,834 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.78 ms. Allocated memory is still 188.7 MB. Free memory was 168.7 MB in the beginning and 167.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-14 03:22:05,834 INFO L168 Benchmark]: Boogie Preprocessor took 12.17 ms. Allocated memory is still 188.7 MB. Free memory was 167.3 MB in the beginning and 166.3 MB in the end (delta: 954.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-14 03:22:05,834 INFO L168 Benchmark]: RCFGBuilder took 156.06 ms. Allocated memory is still 188.7 MB. Free memory was 166.3 MB in the beginning and 156.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-06-14 03:22:05,834 INFO L168 Benchmark]: TraceAbstraction took 3521.20 ms. Allocated memory was 188.7 MB in the beginning and 243.3 MB in the end (delta: 54.5 MB). Free memory was 156.0 MB in the beginning and 96.9 MB in the end (delta: 59.1 MB). Peak memory consumption was 114.4 MB. Max. memory is 8.0 GB. [2021-06-14 03:22:05,835 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 0.13 ms. Allocated memory is still 188.7 MB. Free memory is still 169.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 17.78 ms. Allocated memory is still 188.7 MB. Free memory was 168.7 MB in the beginning and 167.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.17 ms. Allocated memory is still 188.7 MB. Free memory was 167.3 MB in the beginning and 166.3 MB in the end (delta: 954.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 156.06 ms. Allocated memory is still 188.7 MB. Free memory was 166.3 MB in the beginning and 156.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3521.20 ms. Allocated memory was 188.7 MB in the beginning and 243.3 MB in the end (delta: 54.5 MB). Free memory was 156.0 MB in the beginning and 96.9 MB in the end (delta: 59.1 MB). Peak memory consumption was 114.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2056, positive: 1599, positive conditional: 1599, positive unconditional: 0, negative: 457, negative conditional: 457, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1599, positive: 1599, positive conditional: 1599, 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: 1599, positive: 1599, positive conditional: 0, positive unconditional: 1599, 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: 1599, positive: 1532, positive conditional: 0, positive unconditional: 1532, 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: 457 - 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: 3452.2ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.4ms, PartialOrderReductionTime: 1136.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 87, 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: 22.2ms SsaConstructionTime, 87.1ms SatisfiabilityAnalysisTime, 890.3ms InterpolantComputationTime, 249 NumberOfCodeBlocks, 249 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 238 ConstructedInterpolants, 0 QuantifiedInterpolants, 962 SizeOfPredicates, 12 NumberOfNonLiveVariables, 220 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 45/141 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...