/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-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/multiply-verify.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 23:48:23,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 23:48:23,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 23:48:23,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-13 23:48:23,585 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-Lockstep.epf [2021-06-13 23:48:23,634 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 23:48:23,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 23:48:23,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-13 23:48:23,635 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-13 23:48:23,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 23:48:23,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 23:48:23,636 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 23:48:23,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 23:48:23,636 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 23:48:23,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 23:48:23,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 23:48:23,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 23:48:23,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 23:48:23,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 23:48:23,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 23:48:23,637 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 23:48:23,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 23:48:23,638 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 23:48:23,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 23:48:23,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 23:48:23,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 23:48:23,638 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 23:48:23,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 23:48:23,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 23:48:23,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 23:48:23,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 23:48:23,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 23:48:23,639 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 23:48:23,639 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-13 23:48:23,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 23:48:23,639 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 23:48:23,640 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-13 23:48:23,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-13 23:48:23,640 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-13 23:48:23,640 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 23:48:23,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 23:48:23,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 23:48:23,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 23:48:23,968 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-13 23:48:23,969 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-13 23:48:23,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/multiply-verify.wvr.bpl [2021-06-13 23:48:23,970 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/multiply-verify.wvr.bpl' [2021-06-13 23:48:24,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 23:48:24,071 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-13 23:48:24,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 23:48:24,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 23:48:24,072 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 23:48:24,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:24" (1/1) ... [2021-06-13 23:48:24,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:24" (1/1) ... [2021-06-13 23:48:24,109 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 23:48:24,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 23:48:24,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 23:48:24,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 23:48:24,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:24" (1/1) ... [2021-06-13 23:48:24,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:24" (1/1) ... [2021-06-13 23:48:24,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:24" (1/1) ... [2021-06-13 23:48:24,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:24" (1/1) ... [2021-06-13 23:48:24,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:24" (1/1) ... [2021-06-13 23:48:24,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:24" (1/1) ... [2021-06-13 23:48:24,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:24" (1/1) ... [2021-06-13 23:48:24,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 23:48:24,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 23:48:24,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 23:48:24,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 23:48:24,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 23:48:24,209 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-13 23:48:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-13 23:48:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-13 23:48:24,209 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-13 23:48:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-13 23:48:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-13 23:48:24,210 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-13 23:48:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 23:48:24,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 23:48:24,211 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-13 23:48:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-13 23:48:24,212 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-13 23:48:24,212 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 23:48:24,468 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 23:48:24,469 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-13 23:48:24,470 INFO L202 PluginConnector]: Adding new model multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 11:48:24 BoogieIcfgContainer [2021-06-13 23:48:24,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 23:48:24,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 23:48:24,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 23:48:24,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 23:48:24,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:48:24" (1/2) ... [2021-06-13 23:48:24,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbda867 and model type multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 11:48:24, skipping insertion in model container [2021-06-13 23:48:24,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 11:48:24" (2/2) ... [2021-06-13 23:48:24,477 INFO L111 eAbstractionObserver]: Analyzing ICFG multiply-verify.wvr.bpl [2021-06-13 23:48:24,497 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-13 23:48:24,498 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 23:48:24,498 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 23:48:24,498 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 23:48:24,532 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-13 23:48:24,549 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 [2021-06-13 23:48:24,586 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 23:48:24,587 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 23:48:24,587 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 23:48:24,587 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 23:48:24,587 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 23:48:24,587 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 23:48:24,587 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 23:48:24,587 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 23:48:24,662 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:48:24,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:48:24,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1509653392, now seen corresponding path program 1 times [2021-06-13 23:48:24,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:48:24,679 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067922037] [2021-06-13 23:48:24,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:48:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:48:24,842 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-06-13 23:48:24,843 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:48:24,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067922037] [2021-06-13 23:48:24,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067922037] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 23:48:24,855 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 23:48:24,856 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-13 23:48:24,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655025273] [2021-06-13 23:48:24,862 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 23:48:24,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:48:24,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 23:48:24,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 23:48:24,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:24,879 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:48:24,880 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 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) [2021-06-13 23:48:24,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:24,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:48:24,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 23:48:24,980 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:48:24,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:48:24,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1406159752, now seen corresponding path program 2 times [2021-06-13 23:48:24,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:48:24,981 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280284875] [2021-06-13 23:48:24,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:48:24,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:48:25,068 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 23:48:25,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:48:25,069 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280284875] [2021-06-13 23:48:25,069 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280284875] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:48:25,069 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869125720] [2021-06-13 23:48:25,069 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 [2021-06-13 23:48:25,126 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 23:48:25,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 23:48:25,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-13 23:48:25,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:48:25,348 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 23:48:25,348 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869125720] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:48:25,349 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 23:48:25,349 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-13 23:48:25,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30766680] [2021-06-13 23:48:25,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 23:48:25,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:48:25,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 23:48:25,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-06-13 23:48:25,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:25,351 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:48:25,351 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 23:48:25,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:48:25,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:25,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:48:25,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-13 23:48:25,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:48:25,689 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:48:25,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:48:25,689 INFO L82 PathProgramCache]: Analyzing trace with hash -592209546, now seen corresponding path program 3 times [2021-06-13 23:48:25,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:48:25,690 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483053702] [2021-06-13 23:48:25,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:48:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:48:25,784 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-06-13 23:48:25,784 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:48:25,784 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483053702] [2021-06-13 23:48:25,784 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483053702] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:48:25,784 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236904908] [2021-06-13 23:48:25,785 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:48:25,830 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-13 23:48:25,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 23:48:25,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 23:48:25,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:48:26,042 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 13 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 23:48:26,043 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236904908] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:48:26,043 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 23:48:26,043 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2021-06-13 23:48:26,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458730210] [2021-06-13 23:48:26,044 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-13 23:48:26,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:48:26,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-13 23:48:26,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-06-13 23:48:26,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:26,045 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:48:26,045 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 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) [2021-06-13 23:48:26,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:48:26,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-13 23:48:26,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:26,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:48:26,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-13 23:48:26,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-13 23:48:26,468 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:48:26,469 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:48:26,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:48:26,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1849043762, now seen corresponding path program 4 times [2021-06-13 23:48:26,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:48:26,470 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014217261] [2021-06-13 23:48:26,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:48:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:48:26,691 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-06-13 23:48:26,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:48:26,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014217261] [2021-06-13 23:48:26,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014217261] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:48:26,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786210722] [2021-06-13 23:48:26,692 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:48:26,741 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 23:48:26,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 23:48:26,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 30 conjunts are in the unsatisfiable core [2021-06-13 23:48:26,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:48:27,171 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 23:48:27,171 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786210722] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:48:27,171 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 23:48:27,172 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15] total 19 [2021-06-13 23:48:27,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553972995] [2021-06-13 23:48:27,172 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-13 23:48:27,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:48:27,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-13 23:48:27,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2021-06-13 23:48:27,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:27,174 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:48:27,174 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 19 states have internal predecessors, (64), 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) [2021-06-13 23:48:27,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:48:27,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-13 23:48:27,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-13 23:48:27,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:27,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:48:27,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-13 23:48:27,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-13 23:48:27,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 23:48:27,656 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:48:27,656 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:48:27,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:48:27,657 INFO L82 PathProgramCache]: Analyzing trace with hash -972960344, now seen corresponding path program 5 times [2021-06-13 23:48:27,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:48:27,657 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957467145] [2021-06-13 23:48:27,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:48:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:48:27,727 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-06-13 23:48:27,727 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:48:27,727 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957467145] [2021-06-13 23:48:27,728 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957467145] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:48:27,728 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145316958] [2021-06-13 23:48:27,728 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 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 [2021-06-13 23:48:27,786 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-13 23:48:27,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 23:48:27,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-13 23:48:27,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:48:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 13 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 23:48:28,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145316958] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:48:28,003 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 23:48:28,003 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 13] total 17 [2021-06-13 23:48:28,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11706187] [2021-06-13 23:48:28,004 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-13 23:48:28,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:48:28,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-13 23:48:28,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2021-06-13 23:48:28,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:28,011 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:48:28,011 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 states have internal predecessors, (60), 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) [2021-06-13 23:48:28,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:48:28,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-13 23:48:28,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-13 23:48:28,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-13 23:48:28,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:29,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:48:29,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-13 23:48:29,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-13 23:48:29,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-13 23:48:29,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-13 23:48:29,332 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-13 23:48:29,333 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:48:29,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:48:29,333 INFO L82 PathProgramCache]: Analyzing trace with hash -777164216, now seen corresponding path program 1 times [2021-06-13 23:48:29,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:48:29,334 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613877968] [2021-06-13 23:48:29,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:48:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:48:29,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 23:48:29,361 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:48:29,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613877968] [2021-06-13 23:48:29,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613877968] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 23:48:29,361 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 23:48:29,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-13 23:48:29,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951954974] [2021-06-13 23:48:29,361 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-13 23:48:29,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:48:29,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-13 23:48:29,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-13 23:48:29,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:29,362 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:48:29,362 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 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) [2021-06-13 23:48:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:48:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-13 23:48:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-13 23:48:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-13 23:48:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-06-13 23:48:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:29,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:48:29,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-13 23:48:29,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-13 23:48:29,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-13 23:48:29,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-13 23:48:29,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 23:48:29,503 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-13 23:48:29,503 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:48:29,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:48:29,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1376958624, now seen corresponding path program 1 times [2021-06-13 23:48:29,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:48:29,503 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706216350] [2021-06-13 23:48:29,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:48:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:48:29,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 23:48:29,543 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:48:29,543 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706216350] [2021-06-13 23:48:29,544 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706216350] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 23:48:29,544 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 23:48:29,544 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-13 23:48:29,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735451668] [2021-06-13 23:48:29,545 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-13 23:48:29,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:48:29,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-13 23:48:29,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-13 23:48:29,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:29,548 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:48:29,548 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 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) [2021-06-13 23:48:29,549 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:48:29,549 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-13 23:48:29,549 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-13 23:48:29,549 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-13 23:48:29,549 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-06-13 23:48:29,549 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 23:48:29,549 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:48:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:48:29,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 23:48:29,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-13 23:48:29,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-13 23:48:29,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-13 23:48:29,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 23:48:29,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 23:48:29,749 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-13 23:48:29,755 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-13 23:48:29,757 INFO L202 PluginConnector]: Adding new model multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.06 11:48:29 BasicIcfg [2021-06-13 23:48:29,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-13 23:48:29,757 INFO L168 Benchmark]: Toolchain (without parser) took 5687.09 ms. Allocated memory was 168.8 MB in the beginning and 244.3 MB in the end (delta: 75.5 MB). Free memory was 150.1 MB in the beginning and 143.0 MB in the end (delta: 7.0 MB). Peak memory consumption was 83.6 MB. Max. memory is 8.0 GB. [2021-06-13 23:48:29,758 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 168.8 MB. Free memory is still 151.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 23:48:29,758 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.26 ms. Allocated memory is still 168.8 MB. Free memory was 150.0 MB in the beginning and 148.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-13 23:48:29,758 INFO L168 Benchmark]: Boogie Preprocessor took 17.77 ms. Allocated memory is still 168.8 MB. Free memory was 148.5 MB in the beginning and 147.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-13 23:48:29,758 INFO L168 Benchmark]: RCFGBuilder took 341.42 ms. Allocated memory is still 168.8 MB. Free memory was 147.5 MB in the beginning and 134.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-06-13 23:48:29,758 INFO L168 Benchmark]: TraceAbstraction took 5285.07 ms. Allocated memory was 168.8 MB in the beginning and 244.3 MB in the end (delta: 75.5 MB). Free memory was 133.8 MB in the beginning and 143.0 MB in the end (delta: -9.2 MB). Peak memory consumption was 67.9 MB. Max. memory is 8.0 GB. [2021-06-13 23:48:29,758 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 0.12 ms. Allocated memory is still 168.8 MB. Free memory is still 151.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 37.26 ms. Allocated memory is still 168.8 MB. Free memory was 150.0 MB in the beginning and 148.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 17.77 ms. Allocated memory is still 168.8 MB. Free memory was 148.5 MB in the beginning and 147.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 341.42 ms. Allocated memory is still 168.8 MB. Free memory was 147.5 MB in the beginning and 134.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5285.07 ms. Allocated memory was 168.8 MB in the beginning and 244.3 MB in the end (delta: 75.5 MB). Free memory was 133.8 MB in the beginning and 143.0 MB in the end (delta: -9.2 MB). Peak memory consumption was 67.9 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: 7451, positive: 6881, positive conditional: 6881, positive unconditional: 0, negative: 570, negative conditional: 570, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 6924, positive: 6881, positive conditional: 6881, positive unconditional: 0, negative: 43, negative conditional: 43, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 6924, positive: 6566, positive conditional: 0, positive unconditional: 6566, negative: 358, negative conditional: 0, negative unconditional: 358, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 162, positive: 159, positive conditional: 0, positive unconditional: 159, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 162, positive: 159, positive conditional: 0, positive unconditional: 159, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 8, negative conditional: 5, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 64, negative conditional: 12, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6924, positive: 6407, positive conditional: 0, positive unconditional: 6407, negative: 355, negative conditional: 0, negative unconditional: 355, unknown: 162, unknown conditional: 0, unknown unconditional: 162] , Statistics on independence cache: Total cache size (in pairs): 175, Positive cache size: 167, Positive conditional cache size: 8, Positive unconditional cache size: 159, Negative cache size: 8, Negative conditional cache size: 5, Negative unconditional cache size: 3, SemanticConditionEliminator.Independence Queries: [ total: 619, positive: 315, positive conditional: 315, positive unconditional: 0, negative: 304, negative conditional: 61, negative unconditional: 243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 619, positive: 315, positive conditional: 315, positive unconditional: 0, negative: 304, negative conditional: 61, negative unconditional: 243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 8, negative conditional: 5, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 64, negative conditional: 12, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 619, positive: 307, positive conditional: 307, positive unconditional: 0, negative: 299, negative conditional: 56, negative unconditional: 243, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 175, Positive cache size: 167, Positive conditional cache size: 8, Positive unconditional cache size: 159, Negative cache size: 8, Negative conditional cache size: 5, Negative unconditional cache size: 3, Eliminated conditions: 243, SemanticConditionEliminator.Independence Queries: [ total: 619, positive: 315, positive conditional: 315, positive unconditional: 0, negative: 304, negative conditional: 61, negative unconditional: 243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 619, positive: 315, positive conditional: 315, positive unconditional: 0, negative: 304, negative conditional: 61, negative unconditional: 243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 8, negative conditional: 5, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 64, negative conditional: 12, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 619, positive: 307, positive conditional: 307, positive unconditional: 0, negative: 299, negative conditional: 56, negative unconditional: 243, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 175, Positive cache size: 167, Positive conditional cache size: 8, Positive unconditional cache size: 159, Negative cache size: 8, Negative conditional cache size: 5, Negative unconditional cache size: 3, Eliminated conditions: 243, SemanticConditionEliminator.Independence Queries: [ total: 619, positive: 315, positive conditional: 315, positive unconditional: 0, negative: 304, negative conditional: 61, negative unconditional: 243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 619, positive: 315, positive conditional: 315, positive unconditional: 0, negative: 304, negative conditional: 61, negative unconditional: 243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 8, negative conditional: 5, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 64, negative conditional: 12, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 619, positive: 307, positive conditional: 307, positive unconditional: 0, negative: 299, negative conditional: 56, negative unconditional: 243, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 175, Positive cache size: 167, Positive conditional cache size: 8, Positive unconditional cache size: 159, Negative cache size: 8, Negative conditional cache size: 5, Negative unconditional cache size: 3, Eliminated conditions: 243, SemanticConditionEliminator.Independence Queries: [ total: 619, positive: 315, positive conditional: 315, positive unconditional: 0, negative: 304, negative conditional: 61, negative unconditional: 243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 619, positive: 315, positive conditional: 315, positive unconditional: 0, negative: 304, negative conditional: 61, negative unconditional: 243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 8, negative conditional: 5, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 64, negative conditional: 12, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 619, positive: 307, positive conditional: 307, positive unconditional: 0, negative: 299, negative conditional: 56, negative unconditional: 243, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 175, Positive cache size: 167, Positive conditional cache size: 8, Positive unconditional cache size: 159, Negative cache size: 8, Negative conditional cache size: 5, Negative unconditional cache size: 3, Eliminated conditions: 243, SemanticConditionEliminator.Independence Queries: [ total: 619, positive: 315, positive conditional: 315, positive unconditional: 0, negative: 304, negative conditional: 61, negative unconditional: 243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 619, positive: 315, positive conditional: 315, positive unconditional: 0, negative: 304, negative conditional: 61, negative unconditional: 243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 8, negative conditional: 5, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 64, negative conditional: 12, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 619, positive: 307, positive conditional: 307, positive unconditional: 0, negative: 299, negative conditional: 56, negative unconditional: 243, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 175, Positive cache size: 167, Positive conditional cache size: 8, Positive unconditional cache size: 159, Negative cache size: 8, Negative conditional cache size: 5, Negative unconditional cache size: 3, Eliminated conditions: 243, SemanticConditionEliminator.Independence Queries: [ total: 619, positive: 315, positive conditional: 315, positive unconditional: 0, negative: 304, negative conditional: 61, negative unconditional: 243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 619, positive: 315, positive conditional: 315, positive unconditional: 0, negative: 304, negative conditional: 61, negative unconditional: 243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 8, negative conditional: 5, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 64, negative conditional: 12, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 619, positive: 307, positive conditional: 307, positive unconditional: 0, negative: 299, negative conditional: 56, negative unconditional: 243, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 175, Positive cache size: 167, Positive conditional cache size: 8, Positive unconditional cache size: 159, Negative cache size: 8, Negative conditional cache size: 5, Negative unconditional cache size: 3, Eliminated conditions: 243, SemanticConditionEliminator.Independence Queries: [ total: 619, positive: 315, positive conditional: 315, positive unconditional: 0, negative: 304, negative conditional: 61, negative unconditional: 243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 619, positive: 315, positive conditional: 315, positive unconditional: 0, negative: 304, negative conditional: 61, negative unconditional: 243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 8, negative conditional: 5, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 64, negative conditional: 12, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 619, positive: 307, positive conditional: 307, positive unconditional: 0, negative: 299, negative conditional: 56, negative unconditional: 243, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 175, Positive cache size: 167, Positive conditional cache size: 8, Positive unconditional cache size: 159, Negative cache size: 8, Negative conditional cache size: 5, Negative unconditional cache size: 3, Eliminated conditions: 243 ], Maximal queried relation: 7, Independence queries for same thread: 527 - PositiveResult [Line: 68]: 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, 55 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5192.4ms, OverallIterations: 7, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.3ms, PartialOrderReductionTime: 2200.8ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 121, 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: 50.7ms SsaConstructionTime, 171.6ms SatisfiabilityAnalysisTime, 1592.9ms InterpolantComputationTime, 416 NumberOfCodeBlocks, 416 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 405 ConstructedInterpolants, 0 QuantifiedInterpolants, 2055 SizeOfPredicates, 14 NumberOfNonLiveVariables, 346 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 151/283 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...