/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98707888a4ba860d5b57d27ee0e051c5b948cbbf-9870788 [2021-06-02 01:52:35,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-02 01:52:35,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-02 01:52:35,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-02 01:52:35,860 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe.epf [2021-06-02 01:52:35,879 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-02 01:52:35,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-02 01:52:35,879 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-02 01:52:35,879 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-02 01:52:35,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-02 01:52:35,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-02 01:52:35,881 INFO L138 SettingsManager]: * Use SBE=true [2021-06-02 01:52:35,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-02 01:52:35,881 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-02 01:52:35,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-02 01:52:35,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-02 01:52:35,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-02 01:52:35,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-02 01:52:35,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-02 01:52:35,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-02 01:52:35,882 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-02 01:52:35,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-02 01:52:35,882 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-02 01:52:35,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-02 01:52:35,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-02 01:52:35,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-02 01:52:35,883 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-02 01:52:35,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-02 01:52:35,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-02 01:52:35,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-02 01:52:35,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-02 01:52:35,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-02 01:52:35,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-02 01:52:35,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-02 01:52:35,884 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-02 01:52:35,884 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-02 01:52:35,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-02 01:52:35,884 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-02 01:52:35,884 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-02 01:52:36,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-02 01:52:36,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-02 01:52:36,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-02 01:52:36,178 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-02 01:52:36,179 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-02 01:52:36,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring.wvr.bpl [2021-06-02 01:52:36,180 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring.wvr.bpl' [2021-06-02 01:52:36,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-02 01:52:36,218 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-02 01:52:36,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-02 01:52:36,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-02 01:52:36,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-02 01:52:36,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:36" (1/1) ... [2021-06-02 01:52:36,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:36" (1/1) ... [2021-06-02 01:52:36,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-02 01:52:36,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-02 01:52:36,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-02 01:52:36,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-02 01:52:36,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:36" (1/1) ... [2021-06-02 01:52:36,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:36" (1/1) ... [2021-06-02 01:52:36,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:36" (1/1) ... [2021-06-02 01:52:36,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:36" (1/1) ... [2021-06-02 01:52:36,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:36" (1/1) ... [2021-06-02 01:52:36,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:36" (1/1) ... [2021-06-02 01:52:36,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:36" (1/1) ... [2021-06-02 01:52:36,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-02 01:52:36,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-02 01:52:36,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-02 01:52:36,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-02 01:52:36,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:36" (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 [2021-06-02 01:52:36,358 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-02 01:52:36,358 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-02 01:52:36,359 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-02 01:52:36,359 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-02 01:52:36,359 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-02 01:52:36,359 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-02 01:52:36,359 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-02 01:52:36,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-02 01:52:36,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-02 01:52:36,361 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-02 01:52:36,361 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-02 01:52:36,361 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-02 01:52:36,362 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-02 01:52:36,685 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-02 01:52:36,693 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-02 01:52:36,695 INFO L202 PluginConnector]: Adding new model ring.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.06 01:52:36 BoogieIcfgContainer [2021-06-02 01:52:36,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-02 01:52:36,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-02 01:52:36,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-02 01:52:36,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-02 01:52:36,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:36" (1/2) ... [2021-06-02 01:52:36,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1da8f04c and model type ring.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.06 01:52:36, skipping insertion in model container [2021-06-02 01:52:36,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.06 01:52:36" (2/2) ... [2021-06-02 01:52:36,700 INFO L111 eAbstractionObserver]: Analyzing ICFG ring.wvr.bpl [2021-06-02 01:52:36,704 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-02 01:52:36,704 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-02 01:52:36,704 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-02 01:52:36,705 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-02 01:52:36,734 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-02 01:52:36,752 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 [2021-06-02 01:52:36,825 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-02 01:52:36,825 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-02 01:52:36,826 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-02 01:52:36,826 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-02 01:52:36,826 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-02 01:52:36,826 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-02 01:52:36,826 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-02 01:52:36,826 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-02 01:52:37,029 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:52:37,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:52:37,033 INFO L82 PathProgramCache]: Analyzing trace with hash -920402267, now seen corresponding path program 1 times [2021-06-02 01:52:37,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:52:37,044 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897384506] [2021-06-02 01:52:37,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:52:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:52:37,227 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:52:37,227 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:52:37,227 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897384506] [2021-06-02 01:52:37,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897384506] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 01:52:37,229 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-02 01:52:37,229 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-02 01:52:37,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536759549] [2021-06-02 01:52:37,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-02 01:52:37,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:52:37,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-02 01:52:37,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-02 01:52:37,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:37,252 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:52:37,257 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 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) [2021-06-02 01:52:37,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:37,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:37,305 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-02 01:52:37,306 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:52:37,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:52:37,309 INFO L82 PathProgramCache]: Analyzing trace with hash 695198872, now seen corresponding path program 2 times [2021-06-02 01:52:37,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:52:37,309 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416712154] [2021-06-02 01:52:37,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:52:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:52:37,495 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:52:37,496 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:52:37,496 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416712154] [2021-06-02 01:52:37,497 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416712154] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:52:37,497 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832451158] [2021-06-02 01:52:37,497 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 [2021-06-02 01:52:37,563 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-02 01:52:37,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:52:37,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-02 01:52:37,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:52:37,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-06-02 01:52:37,788 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-02 01:52:37,792 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-02 01:52:37,793 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-02 01:52:37,793 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:7 [2021-06-02 01:52:37,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-02 01:52:37,857 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-02 01:52:37,859 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-02 01:52:37,860 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-02 01:52:37,860 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-02 01:52:37,918 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:52:37,918 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832451158] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:52:37,918 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:52:37,919 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2021-06-02 01:52:37,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329424733] [2021-06-02 01:52:37,923 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-02 01:52:37,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:52:37,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-02 01:52:37,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-06-02 01:52:37,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:37,924 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:52:37,924 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 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) [2021-06-02 01:52:37,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:37,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:38,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:38,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-02 01:52:38,349 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:52:38,349 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:52:38,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:52:38,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1308760537, now seen corresponding path program 3 times [2021-06-02 01:52:38,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:52:38,350 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290376908] [2021-06-02 01:52:38,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:52:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:52:38,374 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-02 01:52:38,374 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:52:38,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290376908] [2021-06-02 01:52:38,375 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290376908] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 01:52:38,375 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-02 01:52:38,375 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-02 01:52:38,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963626439] [2021-06-02 01:52:38,376 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-02 01:52:38,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:52:38,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-02 01:52:38,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-02 01:52:38,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:38,378 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:52:38,378 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 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) [2021-06-02 01:52:38,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:38,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-02 01:52:38,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:38,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:38,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-02 01:52:38,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:38,431 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-02 01:52:38,431 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:52:38,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:52:38,432 INFO L82 PathProgramCache]: Analyzing trace with hash 219606843, now seen corresponding path program 4 times [2021-06-02 01:52:38,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:52:38,432 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694124508] [2021-06-02 01:52:38,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:52:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:52:38,477 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-02 01:52:38,477 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:52:38,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694124508] [2021-06-02 01:52:38,477 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694124508] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 01:52:38,478 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-02 01:52:38,478 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-02 01:52:38,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115321511] [2021-06-02 01:52:38,478 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-02 01:52:38,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:52:38,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-02 01:52:38,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-02 01:52:38,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:38,479 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:52:38,479 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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) [2021-06-02 01:52:38,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:38,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-02 01:52:38,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:38,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:38,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:38,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-02 01:52:38,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:38,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:38,518 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-02 01:52:38,518 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:52:38,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:52:38,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1512606040, now seen corresponding path program 5 times [2021-06-02 01:52:38,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:52:38,519 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86786988] [2021-06-02 01:52:38,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:52:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:52:38,580 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-02 01:52:38,580 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:52:38,580 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86786988] [2021-06-02 01:52:38,580 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86786988] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:52:38,580 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425851932] [2021-06-02 01:52:38,580 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 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 [2021-06-02 01:52:38,638 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-06-02 01:52:38,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:52:38,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-02 01:52:38,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:52:38,726 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-06-02 01:52:38,726 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425851932] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 01:52:38,727 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-02 01:52:38,727 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2021-06-02 01:52:38,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379161408] [2021-06-02 01:52:38,727 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-02 01:52:38,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:52:38,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-02 01:52:38,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-02 01:52:38,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:38,728 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:52:38,728 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 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) [2021-06-02 01:52:38,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:38,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-02 01:52:38,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:38,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:38,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:38,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:38,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-02 01:52:38,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:38,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:38,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:38,975 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:52:38,976 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:52:38,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:52:38,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1376445765, now seen corresponding path program 6 times [2021-06-02 01:52:38,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:52:38,977 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621666399] [2021-06-02 01:52:38,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:52:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:52:39,098 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 132 proven. 16 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-06-02 01:52:39,098 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:52:39,098 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621666399] [2021-06-02 01:52:39,098 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621666399] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:52:39,098 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576287264] [2021-06-02 01:52:39,098 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE 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 [2021-06-02 01:52:39,177 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-06-02 01:52:39,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:52:39,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-02 01:52:39,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:52:39,443 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 135 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-06-02 01:52:39,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576287264] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:52:39,443 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:52:39,443 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 7 [2021-06-02 01:52:39,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977604333] [2021-06-02 01:52:39,444 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-02 01:52:39,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:52:39,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-02 01:52:39,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-06-02 01:52:39,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:39,445 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:52:39,445 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 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) [2021-06-02 01:52:39,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:39,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-02 01:52:39,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:39,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:39,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:39,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:39,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:39,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-02 01:52:39,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:39,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:39,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:39,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:39,668 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:52:39,669 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:52:39,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:52:39,670 INFO L82 PathProgramCache]: Analyzing trace with hash -228495265, now seen corresponding path program 7 times [2021-06-02 01:52:39,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:52:39,670 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829297894] [2021-06-02 01:52:39,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:52:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:52:39,808 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 21 proven. 13 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-06-02 01:52:39,808 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:52:39,808 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829297894] [2021-06-02 01:52:39,808 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829297894] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:52:39,808 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845966785] [2021-06-02 01:52:39,808 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY 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 [2021-06-02 01:52:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:52:39,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-02 01:52:39,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:52:39,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-02 01:52:39,982 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-02 01:52:39,984 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-02 01:52:39,984 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-02 01:52:39,984 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-02 01:52:40,023 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 21 proven. 13 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-06-02 01:52:40,024 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845966785] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:52:40,024 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:52:40,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-06-02 01:52:40,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870102729] [2021-06-02 01:52:40,025 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-02 01:52:40,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:52:40,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-02 01:52:40,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-06-02 01:52:40,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:40,026 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:52:40,026 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 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) [2021-06-02 01:52:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-02 01:52:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:40,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:40,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:40,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-02 01:52:40,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:40,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:40,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:40,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:40,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:52:40,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-06-02 01:52:40,397 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:52:40,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:52:40,397 INFO L82 PathProgramCache]: Analyzing trace with hash -2096125410, now seen corresponding path program 8 times [2021-06-02 01:52:40,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:52:40,398 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171302626] [2021-06-02 01:52:40,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:52:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:52:41,143 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-02 01:52:41,144 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:52:41,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171302626] [2021-06-02 01:52:41,144 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171302626] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:52:41,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992100306] [2021-06-02 01:52:41,144 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:52:41,203 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-02 01:52:41,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:52:41,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 55 conjunts are in the unsatisfiable core [2021-06-02 01:52:41,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:52:41,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-02 01:52:41,596 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-02 01:52:41,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 19 [2021-06-02 01:52:41,599 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-02 01:52:41,618 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-02 01:52:41,621 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-02 01:52:41,622 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:76, output treesize:44 [2021-06-02 01:52:41,728 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-06-02 01:52:41,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 19 [2021-06-02 01:52:41,731 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-02 01:52:41,739 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-02 01:52:41,740 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-02 01:52:41,740 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:52, output treesize:28 [2021-06-02 01:52:41,821 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-06-02 01:52:41,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 18 [2021-06-02 01:52:41,824 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-02 01:52:41,831 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-02 01:52:41,831 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-02 01:52:41,832 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:15 [2021-06-02 01:52:42,000 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:52:42,001 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992100306] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:52:42,001 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:52:42,001 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 32 [2021-06-02 01:52:42,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490333775] [2021-06-02 01:52:42,002 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-06-02 01:52:42,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:52:42,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-06-02 01:52:42,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=941, Unknown=0, NotChecked=0, Total=1056 [2021-06-02 01:52:42,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:42,003 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:52:42,003 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 3.0303030303030303) internal successors, (100), 32 states have internal predecessors, (100), 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) [2021-06-02 01:52:42,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:42,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-02 01:52:42,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:42,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:42,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:42,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:42,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:52:42,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:42,914 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2021-06-02 01:52:44,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:44,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-02 01:52:44,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:44,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:44,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:44,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:52:44,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-02 01:52:44,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-02 01:52:44,285 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:52:44,294 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-02 01:52:44,296 INFO L202 PluginConnector]: Adding new model ring.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.06 01:52:44 BasicIcfg [2021-06-02 01:52:44,296 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-02 01:52:44,296 INFO L168 Benchmark]: Toolchain (without parser) took 8078.22 ms. Allocated memory was 350.2 MB in the beginning and 421.5 MB in the end (delta: 71.3 MB). Free memory was 328.8 MB in the beginning and 265.4 MB in the end (delta: 63.3 MB). Peak memory consumption was 135.6 MB. Max. memory is 16.0 GB. [2021-06-02 01:52:44,297 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 350.2 MB. Free memory was 330.0 MB in the beginning and 330.0 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-02 01:52:44,297 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.07 ms. Allocated memory is still 350.2 MB. Free memory was 328.7 MB in the beginning and 327.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-02 01:52:44,297 INFO L168 Benchmark]: Boogie Preprocessor took 15.28 ms. Allocated memory is still 350.2 MB. Free memory was 327.3 MB in the beginning and 326.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-02 01:52:44,297 INFO L168 Benchmark]: RCFGBuilder took 431.56 ms. Allocated memory is still 350.2 MB. Free memory was 326.2 MB in the beginning and 334.5 MB in the end (delta: -8.3 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.0 GB. [2021-06-02 01:52:44,297 INFO L168 Benchmark]: TraceAbstraction took 7600.09 ms. Allocated memory was 350.2 MB in the beginning and 421.5 MB in the end (delta: 71.3 MB). Free memory was 334.5 MB in the beginning and 265.4 MB in the end (delta: 69.0 MB). Peak memory consumption was 139.7 MB. Max. memory is 16.0 GB. [2021-06-02 01:52:44,297 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 0.14 ms. Allocated memory is still 350.2 MB. Free memory was 330.0 MB in the beginning and 330.0 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 27.07 ms. Allocated memory is still 350.2 MB. Free memory was 328.7 MB in the beginning and 327.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.28 ms. Allocated memory is still 350.2 MB. Free memory was 327.3 MB in the beginning and 326.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 431.56 ms. Allocated memory is still 350.2 MB. Free memory was 326.2 MB in the beginning and 334.5 MB in the end (delta: -8.3 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7600.09 ms. Allocated memory was 350.2 MB in the beginning and 421.5 MB in the end (delta: 71.3 MB). Free memory was 334.5 MB in the beginning and 265.4 MB in the end (delta: 69.0 MB). Peak memory consumption was 139.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6870, positive: 6344, positive conditional: 6344, positive unconditional: 0, negative: 526, negative conditional: 526, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 6391, positive: 6344, positive conditional: 6344, positive unconditional: 0, negative: 47, negative conditional: 47, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 6391, positive: 6344, positive conditional: 0, positive unconditional: 6344, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 336, positive: 333, positive conditional: 0, positive unconditional: 333, 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: 336, positive: 330, positive conditional: 0, positive unconditional: 330, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 17, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 14, negative conditional: 11, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 118, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 61, negative conditional: 28, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6391, positive: 6011, positive conditional: 0, positive unconditional: 6011, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 336, unknown conditional: 0, unknown unconditional: 336] , Statistics on independence cache: Total cache size (in pairs): 347, Positive cache size: 333, Positive conditional cache size: 0, Positive unconditional cache size: 333, Negative cache size: 14, Negative conditional cache size: 11, Negative unconditional cache size: 3, SemanticConditionEliminator.Independence Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 238, negative conditional: 70, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 238, negative conditional: 70, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 14, negative conditional: 11, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 118, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 61, negative conditional: 28, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 227, negative conditional: 59, negative unconditional: 168, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 347, Positive cache size: 333, Positive conditional cache size: 0, Positive unconditional cache size: 333, Negative cache size: 14, Negative conditional cache size: 11, Negative unconditional cache size: 3, Eliminated conditions: 168, SemanticConditionEliminator.Independence Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 238, negative conditional: 70, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 238, negative conditional: 70, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 14, negative conditional: 11, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 118, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 61, negative conditional: 28, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 227, negative conditional: 59, negative unconditional: 168, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 347, Positive cache size: 333, Positive conditional cache size: 0, Positive unconditional cache size: 333, Negative cache size: 14, Negative conditional cache size: 11, Negative unconditional cache size: 3, Eliminated conditions: 168, SemanticConditionEliminator.Independence Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 238, negative conditional: 70, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 238, negative conditional: 70, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 14, negative conditional: 11, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 118, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 61, negative conditional: 28, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 227, negative conditional: 59, negative unconditional: 168, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 347, Positive cache size: 333, Positive conditional cache size: 0, Positive unconditional cache size: 333, Negative cache size: 14, Negative conditional cache size: 11, Negative unconditional cache size: 3, Eliminated conditions: 168, SemanticConditionEliminator.Independence Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 238, negative conditional: 70, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 238, negative conditional: 70, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 14, negative conditional: 11, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 118, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 61, negative conditional: 28, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 227, negative conditional: 59, negative unconditional: 168, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 347, Positive cache size: 333, Positive conditional cache size: 0, Positive unconditional cache size: 333, Negative cache size: 14, Negative conditional cache size: 11, Negative unconditional cache size: 3, Eliminated conditions: 168, SemanticConditionEliminator.Independence Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 238, negative conditional: 70, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 238, negative conditional: 70, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 14, negative conditional: 11, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 118, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 61, negative conditional: 28, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 227, negative conditional: 59, negative unconditional: 168, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 347, Positive cache size: 333, Positive conditional cache size: 0, Positive unconditional cache size: 333, Negative cache size: 14, Negative conditional cache size: 11, Negative unconditional cache size: 3, Eliminated conditions: 168, SemanticConditionEliminator.Independence Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 238, negative conditional: 70, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 238, negative conditional: 70, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 14, negative conditional: 11, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 118, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 61, negative conditional: 28, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 227, negative conditional: 59, negative unconditional: 168, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 347, Positive cache size: 333, Positive conditional cache size: 0, Positive unconditional cache size: 333, Negative cache size: 14, Negative conditional cache size: 11, Negative unconditional cache size: 3, Eliminated conditions: 168, SemanticConditionEliminator.Independence Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 238, negative conditional: 70, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 238, negative conditional: 70, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 14, negative conditional: 11, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 118, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 61, negative conditional: 28, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 227, negative conditional: 59, negative unconditional: 168, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 347, Positive cache size: 333, Positive conditional cache size: 0, Positive unconditional cache size: 333, Negative cache size: 14, Negative conditional cache size: 11, Negative unconditional cache size: 3, Eliminated conditions: 168, SemanticConditionEliminator.Independence Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 238, negative conditional: 70, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 238, negative conditional: 70, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 14, negative conditional: 11, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 118, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 61, negative conditional: 28, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 238, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 227, negative conditional: 59, negative unconditional: 168, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 347, Positive cache size: 333, Positive conditional cache size: 0, Positive unconditional cache size: 333, Negative cache size: 14, Negative conditional cache size: 11, Negative unconditional cache size: 3, Eliminated conditions: 168 ], Maximal queried relation: 8, Independence queries for same thread: 479 - PositiveResult [Line: 104]: 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, 71 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7526.9ms, OverallIterations: 8, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.7ms, PartialOrderReductionTime: 2784.6ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 73, 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: 79.2ms SsaConstructionTime, 351.3ms SatisfiabilityAnalysisTime, 2849.7ms InterpolantComputationTime, 791 NumberOfCodeBlocks, 791 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 778 ConstructedInterpolants, 0 QuantifiedInterpolants, 4701 SizeOfPredicates, 20 NumberOfNonLiveVariables, 848 ConjunctsInSsa, 100 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 552/696 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...