/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 03:46:59,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 03:46:59,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 03:46:59,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 03:46:59,462 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.epf [2021-07-14 03:46:59,513 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 03:46:59,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 03:46:59,514 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 03:46:59,514 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 03:46:59,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 03:46:59,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 03:46:59,517 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 03:46:59,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 03:46:59,517 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 03:46:59,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 03:46:59,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 03:46:59,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 03:46:59,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 03:46:59,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 03:46:59,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 03:46:59,519 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 03:46:59,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 03:46:59,519 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 03:46:59,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 03:46:59,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 03:46:59,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 03:46:59,519 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 03:46:59,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 03:46:59,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 03:46:59,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 03:46:59,520 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 03:46:59,520 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 03:46:59,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 03:46:59,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 03:46:59,520 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 03:46:59,521 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 03:46:59,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 03:46:59,521 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-14 03:46:59,521 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 03:46:59,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 03:46:59,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 03:46:59,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 03:46:59,779 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 03:46:59,780 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 03:46:59,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-4.wvr.bpl [2021-07-14 03:46:59,780 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-4.wvr.bpl' [2021-07-14 03:46:59,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 03:46:59,796 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 03:46:59,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 03:46:59,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 03:46:59,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 03:46:59,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:46:59" (1/1) ... [2021-07-14 03:46:59,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:46:59" (1/1) ... [2021-07-14 03:46:59,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 03:46:59,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 03:46:59,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 03:46:59,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 03:46:59,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:46:59" (1/1) ... [2021-07-14 03:46:59,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:46:59" (1/1) ... [2021-07-14 03:46:59,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:46:59" (1/1) ... [2021-07-14 03:46:59,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:46:59" (1/1) ... [2021-07-14 03:46:59,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:46:59" (1/1) ... [2021-07-14 03:46:59,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:46:59" (1/1) ... [2021-07-14 03:46:59,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:46:59" (1/1) ... [2021-07-14 03:46:59,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 03:46:59,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 03:46:59,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 03:46:59,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 03:46:59,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:46:59" (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 [2021-07-14 03:46:59,937 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 03:46:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 03:46:59,937 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 03:46:59,937 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 03:46:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 03:46:59,938 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 03:46:59,938 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 03:46:59,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 03:46:59,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 03:46:59,938 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 03:46:59,938 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 03:46:59,938 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 03:46:59,939 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 03:47:00,079 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 03:47:00,080 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 03:47:00,081 INFO L202 PluginConnector]: Adding new model misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:47:00 BoogieIcfgContainer [2021-07-14 03:47:00,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 03:47:00,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 03:47:00,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 03:47:00,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 03:47:00,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:46:59" (1/2) ... [2021-07-14 03:47:00,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37f5c08c and model type misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:47:00, skipping insertion in model container [2021-07-14 03:47:00,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:47:00" (2/2) ... [2021-07-14 03:47:00,085 INFO L111 eAbstractionObserver]: Analyzing ICFG misc-4.wvr.bpl [2021-07-14 03:47:00,089 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 03:47:00,089 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 03:47:00,089 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 03:47:00,090 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 03:47:00,114 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 03:47:00,128 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 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 [2021-07-14 03:47:00,169 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 03:47:00,169 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 03:47:00,170 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 03:47:00,170 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 03:47:00,170 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 03:47:00,170 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 03:47:00,170 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 03:47:00,170 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 03:47:00,270 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 03:47:00,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 03:47:00,274 INFO L82 PathProgramCache]: Analyzing trace with hash -641381568, now seen corresponding path program 1 times [2021-07-14 03:47:00,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 03:47:00,279 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162431515] [2021-07-14 03:47:00,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 03:47:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:47:00,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 03:47:00,464 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 03:47:00,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162431515] [2021-07-14 03:47:00,465 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162431515] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 03:47:00,465 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 03:47:00,465 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-14 03:47:00,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494731825] [2021-07-14 03:47:00,468 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 03:47:00,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 03:47:00,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 03:47:00,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 03:47:00,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:47:00,482 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 03:47:00,495 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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) [2021-07-14 03:47:00,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:47:00,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:00,567 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 03:47:00,567 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 03:47:00,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 03:47:00,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1829875750, now seen corresponding path program 2 times [2021-07-14 03:47:00,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 03:47:00,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15360535] [2021-07-14 03:47:00,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 03:47:00,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:47:00,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 03:47:00,624 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 03:47:00,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15360535] [2021-07-14 03:47:00,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15360535] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:47:00,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071495631] [2021-07-14 03:47:00,624 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 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 [2021-07-14 03:47:00,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 03:47:00,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 03:47:00,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-14 03:47:00,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 03:47:00,764 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 03:47:00,765 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071495631] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:47:00,765 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 03:47:00,765 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-07-14 03:47:00,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670466208] [2021-07-14 03:47:00,766 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 03:47:00,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 03:47:00,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 03:47:00,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-14 03:47:00,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:47:00,767 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 03:47:00,767 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-07-14 03:47:00,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:00,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:47:00,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:00,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:47:01,123 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 03:47:01,123 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 03:47:01,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 03:47:01,124 INFO L82 PathProgramCache]: Analyzing trace with hash 872810010, now seen corresponding path program 1 times [2021-07-14 03:47:01,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 03:47:01,125 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331531905] [2021-07-14 03:47:01,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 03:47:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:47:01,138 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-14 03:47:01,138 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 03:47:01,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331531905] [2021-07-14 03:47:01,139 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331531905] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 03:47:01,139 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 03:47:01,139 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-14 03:47:01,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067503367] [2021-07-14 03:47:01,139 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 03:47:01,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 03:47:01,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 03:47:01,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 03:47:01,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:47:01,140 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 03:47:01,140 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-07-14 03:47:01,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:01,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:47:01,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:47:01,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:01,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:47:01,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:01,158 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 03:47:01,159 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 03:47:01,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 03:47:01,159 INFO L82 PathProgramCache]: Analyzing trace with hash -61387966, now seen corresponding path program 2 times [2021-07-14 03:47:01,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 03:47:01,159 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495633759] [2021-07-14 03:47:01,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 03:47:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:47:01,193 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-14 03:47:01,194 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 03:47:01,194 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495633759] [2021-07-14 03:47:01,194 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495633759] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 03:47:01,194 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 03:47:01,194 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 03:47:01,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217484475] [2021-07-14 03:47:01,195 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 03:47:01,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 03:47:01,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 03:47:01,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 03:47:01,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:47:01,196 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 03:47:01,196 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2021-07-14 03:47:01,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:01,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:47:01,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:01,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:47:01,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:01,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:47:01,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:01,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 03:47:01,235 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-14 03:47:01,235 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 03:47:01,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 03:47:01,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1874408734, now seen corresponding path program 1 times [2021-07-14 03:47:01,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 03:47:01,236 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687334522] [2021-07-14 03:47:01,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 03:47:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:47:01,265 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-14 03:47:01,266 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 03:47:01,266 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687334522] [2021-07-14 03:47:01,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687334522] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 03:47:01,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 03:47:01,266 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-14 03:47:01,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062994645] [2021-07-14 03:47:01,266 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 03:47:01,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 03:47:01,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 03:47:01,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 03:47:01,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:47:01,267 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 03:47:01,267 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 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) [2021-07-14 03:47:01,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:01,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:47:01,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:01,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 03:47:01,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:47:01,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:01,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:47:01,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:01,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 03:47:01,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:01,295 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-14 03:47:01,295 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 03:47:01,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 03:47:01,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1955831942, now seen corresponding path program 2 times [2021-07-14 03:47:01,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 03:47:01,296 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750419646] [2021-07-14 03:47:01,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 03:47:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:47:01,358 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-14 03:47:01,358 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 03:47:01,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750419646] [2021-07-14 03:47:01,359 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750419646] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:47:01,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307731594] [2021-07-14 03:47:01,359 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) [2021-07-14 03:47:01,406 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 03:47:01,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 03:47:01,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 03:47:01,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 03:47:01,537 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-14 03:47:01,538 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307731594] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:47:01,538 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 03:47:01,538 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-07-14 03:47:01,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93977714] [2021-07-14 03:47:01,538 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 03:47:01,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 03:47:01,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 03:47:01,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-07-14 03:47:01,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:47:01,539 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 03:47:01,539 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 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) [2021-07-14 03:47:01,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:01,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:47:01,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:01,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 03:47:01,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:01,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:47:01,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:01,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:47:01,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:01,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 03:47:01,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:01,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 03:47:01,913 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 03:47:01,913 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 03:47:01,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 03:47:01,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1664983758, now seen corresponding path program 3 times [2021-07-14 03:47:01,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 03:47:01,914 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173653028] [2021-07-14 03:47:01,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 03:47:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:47:01,932 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-07-14 03:47:01,932 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 03:47:01,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173653028] [2021-07-14 03:47:01,932 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173653028] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:47:01,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978316859] [2021-07-14 03:47:01,933 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 [2021-07-14 03:47:01,960 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-14 03:47:01,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 03:47:01,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2021-07-14 03:47:01,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 03:47:02,004 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-07-14 03:47:02,004 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978316859] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:47:02,004 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 03:47:02,004 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-07-14 03:47:02,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330084664] [2021-07-14 03:47:02,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 03:47:02,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 03:47:02,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 03:47:02,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 03:47:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:47:02,005 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 03:47:02,006 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-07-14 03:47:02,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:02,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:47:02,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:02,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 03:47:02,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:02,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 03:47:02,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:47:02,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:02,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:47:02,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:02,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 03:47:02,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 03:47:02,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 03:47:02,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 03:47:02,279 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 03:47:02,285 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-14 03:47:02,286 INFO L202 PluginConnector]: Adding new model misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 03:47:02 BasicIcfg [2021-07-14 03:47:02,286 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-14 03:47:02,286 INFO L168 Benchmark]: Toolchain (without parser) took 2490.40 ms. Allocated memory is still 200.3 MB. Free memory was 180.3 MB in the beginning and 96.9 MB in the end (delta: 83.3 MB). Peak memory consumption was 83.3 MB. Max. memory is 8.0 GB. [2021-07-14 03:47:02,287 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 200.3 MB. Free memory is still 181.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 03:47:02,287 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.37 ms. Allocated memory is still 200.3 MB. Free memory was 180.2 MB in the beginning and 178.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 03:47:02,287 INFO L168 Benchmark]: Boogie Preprocessor took 9.98 ms. Allocated memory is still 200.3 MB. Free memory was 178.8 MB in the beginning and 177.8 MB in the end (delta: 983.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 03:47:02,287 INFO L168 Benchmark]: RCFGBuilder took 255.66 ms. Allocated memory is still 200.3 MB. Free memory was 177.7 MB in the beginning and 166.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-07-14 03:47:02,287 INFO L168 Benchmark]: TraceAbstraction took 2204.10 ms. Allocated memory is still 200.3 MB. Free memory was 166.3 MB in the beginning and 96.9 MB in the end (delta: 69.4 MB). Peak memory consumption was 69.7 MB. Max. memory is 8.0 GB. [2021-07-14 03:47:02,287 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 0.10 ms. Allocated memory is still 200.3 MB. Free memory is still 181.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 17.37 ms. Allocated memory is still 200.3 MB. Free memory was 180.2 MB in the beginning and 178.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 9.98 ms. Allocated memory is still 200.3 MB. Free memory was 178.8 MB in the beginning and 177.8 MB in the end (delta: 983.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 255.66 ms. Allocated memory is still 200.3 MB. Free memory was 177.7 MB in the beginning and 166.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2204.10 ms. Allocated memory is still 200.3 MB. Free memory was 166.3 MB in the beginning and 96.9 MB in the end (delta: 69.4 MB). Peak memory consumption was 69.7 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: 6005, positive: 5268, positive conditional: 5268, positive unconditional: 0, negative: 737, negative conditional: 737, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 5412, positive: 5268, positive conditional: 5268, positive unconditional: 0, negative: 144, negative conditional: 144, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 5412, positive: 4690, positive conditional: 0, positive unconditional: 4690, negative: 722, negative conditional: 0, negative unconditional: 722, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 160, positive: 152, positive conditional: 0, positive unconditional: 152, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 160, positive: 146, positive conditional: 0, positive unconditional: 146, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 33, positive conditional: 27, positive unconditional: 6, negative: 17, negative conditional: 9, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 172, positive: 98, positive conditional: 70, positive unconditional: 28, negative: 74, negative conditional: 22, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5412, positive: 4538, positive conditional: 0, positive unconditional: 4538, negative: 714, negative conditional: 0, negative unconditional: 714, unknown: 160, unknown conditional: 0, unknown unconditional: 160] , Statistics on independence cache: Total cache size (in pairs): 196, Positive cache size: 179, Positive conditional cache size: 27, Positive unconditional cache size: 152, Negative cache size: 17, Negative conditional cache size: 9, Negative unconditional cache size: 8, SemanticConditionEliminator.Independence Queries: [ total: 2110, positive: 578, positive conditional: 578, positive unconditional: 0, negative: 1532, negative conditional: 370, negative unconditional: 1162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2110, positive: 578, positive conditional: 578, positive unconditional: 0, negative: 1532, negative conditional: 370, negative unconditional: 1162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 33, positive conditional: 27, positive unconditional: 6, negative: 17, negative conditional: 9, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 172, positive: 98, positive conditional: 70, positive unconditional: 28, negative: 74, negative conditional: 22, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2110, positive: 551, positive conditional: 551, positive unconditional: 0, negative: 1523, negative conditional: 361, negative unconditional: 1162, unknown: 36, unknown conditional: 36, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 196, Positive cache size: 179, Positive conditional cache size: 27, Positive unconditional cache size: 152, Negative cache size: 17, Negative conditional cache size: 9, Negative unconditional cache size: 8, Eliminated conditions: 1162, SemanticConditionEliminator.Independence Queries: [ total: 2110, positive: 578, positive conditional: 578, positive unconditional: 0, negative: 1532, negative conditional: 370, negative unconditional: 1162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2110, positive: 578, positive conditional: 578, positive unconditional: 0, negative: 1532, negative conditional: 370, negative unconditional: 1162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 33, positive conditional: 27, positive unconditional: 6, negative: 17, negative conditional: 9, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 172, positive: 98, positive conditional: 70, positive unconditional: 28, negative: 74, negative conditional: 22, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2110, positive: 551, positive conditional: 551, positive unconditional: 0, negative: 1523, negative conditional: 361, negative unconditional: 1162, unknown: 36, unknown conditional: 36, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 196, Positive cache size: 179, Positive conditional cache size: 27, Positive unconditional cache size: 152, Negative cache size: 17, Negative conditional cache size: 9, Negative unconditional cache size: 8, Eliminated conditions: 1162, SemanticConditionEliminator.Independence Queries: [ total: 2110, positive: 578, positive conditional: 578, positive unconditional: 0, negative: 1532, negative conditional: 370, negative unconditional: 1162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2110, positive: 578, positive conditional: 578, positive unconditional: 0, negative: 1532, negative conditional: 370, negative unconditional: 1162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 33, positive conditional: 27, positive unconditional: 6, negative: 17, negative conditional: 9, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 172, positive: 98, positive conditional: 70, positive unconditional: 28, negative: 74, negative conditional: 22, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2110, positive: 551, positive conditional: 551, positive unconditional: 0, negative: 1523, negative conditional: 361, negative unconditional: 1162, unknown: 36, unknown conditional: 36, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 196, Positive cache size: 179, Positive conditional cache size: 27, Positive unconditional cache size: 152, Negative cache size: 17, Negative conditional cache size: 9, Negative unconditional cache size: 8, Eliminated conditions: 1162, SemanticConditionEliminator.Independence Queries: [ total: 2110, positive: 578, positive conditional: 578, positive unconditional: 0, negative: 1532, negative conditional: 370, negative unconditional: 1162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2110, positive: 578, positive conditional: 578, positive unconditional: 0, negative: 1532, negative conditional: 370, negative unconditional: 1162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 33, positive conditional: 27, positive unconditional: 6, negative: 17, negative conditional: 9, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 172, positive: 98, positive conditional: 70, positive unconditional: 28, negative: 74, negative conditional: 22, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2110, positive: 551, positive conditional: 551, positive unconditional: 0, negative: 1523, negative conditional: 361, negative unconditional: 1162, unknown: 36, unknown conditional: 36, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 196, Positive cache size: 179, Positive conditional cache size: 27, Positive unconditional cache size: 152, Negative cache size: 17, Negative conditional cache size: 9, Negative unconditional cache size: 8, Eliminated conditions: 1162, SemanticConditionEliminator.Independence Queries: [ total: 2110, positive: 578, positive conditional: 578, positive unconditional: 0, negative: 1532, negative conditional: 370, negative unconditional: 1162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2110, positive: 578, positive conditional: 578, positive unconditional: 0, negative: 1532, negative conditional: 370, negative unconditional: 1162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 33, positive conditional: 27, positive unconditional: 6, negative: 17, negative conditional: 9, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 172, positive: 98, positive conditional: 70, positive unconditional: 28, negative: 74, negative conditional: 22, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2110, positive: 551, positive conditional: 551, positive unconditional: 0, negative: 1523, negative conditional: 361, negative unconditional: 1162, unknown: 36, unknown conditional: 36, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 196, Positive cache size: 179, Positive conditional cache size: 27, Positive unconditional cache size: 152, Negative cache size: 17, Negative conditional cache size: 9, Negative unconditional cache size: 8, Eliminated conditions: 1162, SemanticConditionEliminator.Independence Queries: [ total: 2110, positive: 578, positive conditional: 578, positive unconditional: 0, negative: 1532, negative conditional: 370, negative unconditional: 1162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2110, positive: 578, positive conditional: 578, positive unconditional: 0, negative: 1532, negative conditional: 370, negative unconditional: 1162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 33, positive conditional: 27, positive unconditional: 6, negative: 17, negative conditional: 9, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 172, positive: 98, positive conditional: 70, positive unconditional: 28, negative: 74, negative conditional: 22, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2110, positive: 551, positive conditional: 551, positive unconditional: 0, negative: 1523, negative conditional: 361, negative unconditional: 1162, unknown: 36, unknown conditional: 36, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 196, Positive cache size: 179, Positive conditional cache size: 27, Positive unconditional cache size: 152, Negative cache size: 17, Negative conditional cache size: 9, Negative unconditional cache size: 8, Eliminated conditions: 1162, SemanticConditionEliminator.Independence Queries: [ total: 2110, positive: 578, positive conditional: 578, positive unconditional: 0, negative: 1532, negative conditional: 370, negative unconditional: 1162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2110, positive: 578, positive conditional: 578, positive unconditional: 0, negative: 1532, negative conditional: 370, negative unconditional: 1162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 33, positive conditional: 27, positive unconditional: 6, negative: 17, negative conditional: 9, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 172, positive: 98, positive conditional: 70, positive unconditional: 28, negative: 74, negative conditional: 22, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2110, positive: 551, positive conditional: 551, positive unconditional: 0, negative: 1523, negative conditional: 361, negative unconditional: 1162, unknown: 36, unknown conditional: 36, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 196, Positive cache size: 179, Positive conditional cache size: 27, Positive unconditional cache size: 152, Negative cache size: 17, Negative conditional cache size: 9, Negative unconditional cache size: 8, Eliminated conditions: 1162 ], Maximal queried relation: 7, Independence queries for same thread: 593 - PositiveResult [Line: 62]: 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 7 procedures, 48 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2145.1ms, OverallIterations: 7, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.3ms, PartialOrderReductionTime: 593.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 28, 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: 18.2ms SsaConstructionTime, 120.3ms SatisfiabilityAnalysisTime, 476.0ms InterpolantComputationTime, 316 NumberOfCodeBlocks, 308 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 306 ConstructedInterpolants, 0 QuantifiedInterpolants, 440 SizeOfPredicates, 2 NumberOfNonLiveVariables, 179 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 181/207 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...