/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/threaded-sum-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98707888a4ba860d5b57d27ee0e051c5b948cbbf-9870788 [2021-06-02 01:52:46,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-02 01:52:46,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-02 01:52:46,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-02 01:52:46,494 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 01:52:46,527 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-02 01:52:46,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-02 01:52:46,528 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-02 01:52:46,528 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-02 01:52:46,529 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-02 01:52:46,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-02 01:52:46,529 INFO L138 SettingsManager]: * Use SBE=true [2021-06-02 01:52:46,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-02 01:52:46,529 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-02 01:52:46,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-02 01:52:46,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-02 01:52:46,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-02 01:52:46,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-02 01:52:46,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-02 01:52:46,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-02 01:52:46,530 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-02 01:52:46,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-02 01:52:46,530 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-02 01:52:46,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-02 01:52:46,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-02 01:52:46,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-02 01:52:46,531 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-02 01:52:46,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-02 01:52:46,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-02 01:52:46,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-02 01:52:46,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-02 01:52:46,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-02 01:52:46,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-02 01:52:46,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-02 01:52:46,532 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-02 01:52:46,532 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-02 01:52:46,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-02 01:52:46,532 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-02 01:52:46,533 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-02 01:52:46,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-02 01:52:46,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-02 01:52:46,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-02 01:52:46,827 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-02 01:52:46,828 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-02 01:52:46,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/threaded-sum-2.wvr.bpl [2021-06-02 01:52:46,829 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/threaded-sum-2.wvr.bpl' [2021-06-02 01:52:46,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-02 01:52:46,864 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-02 01:52:46,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-02 01:52:46,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-02 01:52:46,865 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-02 01:52:46,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:46" (1/1) ... [2021-06-02 01:52:46,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:46" (1/1) ... [2021-06-02 01:52:46,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-02 01:52:46,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-02 01:52:46,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-02 01:52:46,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-02 01:52:46,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:46" (1/1) ... [2021-06-02 01:52:46,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:46" (1/1) ... [2021-06-02 01:52:46,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:46" (1/1) ... [2021-06-02 01:52:46,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:46" (1/1) ... [2021-06-02 01:52:46,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:46" (1/1) ... [2021-06-02 01:52:46,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:46" (1/1) ... [2021-06-02 01:52:46,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:46" (1/1) ... [2021-06-02 01:52:46,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-02 01:52:46,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-02 01:52:46,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-02 01:52:46,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-02 01:52:46,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:46" (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 01:52:46,972 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-02 01:52:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-02 01:52:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-02 01:52:46,972 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-02 01:52:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-02 01:52:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-02 01:52:46,972 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-02 01:52:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-02 01:52:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-02 01:52:46,974 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 01:52:47,186 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-02 01:52:47,187 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-02 01:52:47,188 INFO L202 PluginConnector]: Adding new model threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.06 01:52:47 BoogieIcfgContainer [2021-06-02 01:52:47,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-02 01:52:47,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-02 01:52:47,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-02 01:52:47,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-02 01:52:47,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:52:46" (1/2) ... [2021-06-02 01:52:47,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cdcdad8 and model type threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.06 01:52:47, skipping insertion in model container [2021-06-02 01:52:47,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.06 01:52:47" (2/2) ... [2021-06-02 01:52:47,205 INFO L111 eAbstractionObserver]: Analyzing ICFG threaded-sum-2.wvr.bpl [2021-06-02 01:52:47,212 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-02 01:52:47,212 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-02 01:52:47,212 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-02 01:52:47,213 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-02 01:52:47,261 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-02 01:52:47,303 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-02 01:52:47,348 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-02 01:52:47,349 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-02 01:52:47,349 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-02 01:52:47,349 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-02 01:52:47,349 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-02 01:52:47,349 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-02 01:52:47,349 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-02 01:52:47,349 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-02 01:52:47,436 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:52:47,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:52:47,440 INFO L82 PathProgramCache]: Analyzing trace with hash -178355778, now seen corresponding path program 1 times [2021-06-02 01:52:47,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:52:47,448 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781439381] [2021-06-02 01:52:47,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:52:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:52:47,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-02 01:52:47,583 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:52:47,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781439381] [2021-06-02 01:52:47,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781439381] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 01:52:47,585 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-02 01:52:47,586 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-02 01:52:47,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341648766] [2021-06-02 01:52:47,592 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-02 01:52:47,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:52:47,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-02 01:52:47,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-02 01:52:47,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:47,608 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:52:47,609 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 01:52:47,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:47,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:47,654 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-02 01:52:47,654 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:52:47,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:52:47,657 INFO L82 PathProgramCache]: Analyzing trace with hash 721160386, now seen corresponding path program 2 times [2021-06-02 01:52:47,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:52:47,658 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997573958] [2021-06-02 01:52:47,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:52:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:52:47,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-02 01:52:47,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:52:47,724 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997573958] [2021-06-02 01:52:47,724 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997573958] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 01:52:47,724 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-02 01:52:47,724 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-02 01:52:47,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368833230] [2021-06-02 01:52:47,728 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-02 01:52:47,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:52:47,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-02 01:52:47,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-02 01:52:47,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:47,729 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:52:47,730 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 01:52:47,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:47,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:47,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:47,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:47,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-02 01:52:47,760 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:52:47,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:52:47,762 INFO L82 PathProgramCache]: Analyzing trace with hash 658702084, now seen corresponding path program 3 times [2021-06-02 01:52:47,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:52:47,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701297630] [2021-06-02 01:52:47,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:52:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:52:48,035 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:52:48,035 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:52:48,035 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701297630] [2021-06-02 01:52:48,035 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701297630] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:52:48,036 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957558924] [2021-06-02 01:52:48,036 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 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 01:52:48,078 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-02 01:52:48,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:52:48,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-02 01:52:48,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:52:48,474 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:52:48,474 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957558924] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:52:48,474 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:52:48,474 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-06-02 01:52:48,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415480335] [2021-06-02 01:52:48,476 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-02 01:52:48,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:52:48,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-02 01:52:48,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2021-06-02 01:52:48,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:48,479 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:52:48,479 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.0) internal successors, (42), 20 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 01:52:48,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:48,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:48,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:48,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:48,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:48,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-02 01:52:48,808 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:52:48,809 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:52:48,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:52:48,810 INFO L82 PathProgramCache]: Analyzing trace with hash 892677834, now seen corresponding path program 4 times [2021-06-02 01:52:48,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:52:48,810 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116065605] [2021-06-02 01:52:48,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:52:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:52:49,189 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-02 01:52:49,190 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:52:49,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116065605] [2021-06-02 01:52:49,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116065605] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:52:49,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150967242] [2021-06-02 01:52:49,190 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 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 01:52:49,231 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-02 01:52:49,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:52:49,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 18 conjunts are in the unsatisfiable core [2021-06-02 01:52:49,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:52:50,034 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:52:50,034 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150967242] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:52:50,035 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:52:50,035 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 24 [2021-06-02 01:52:50,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518393132] [2021-06-02 01:52:50,035 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-02 01:52:50,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:52:50,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-02 01:52:50,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2021-06-02 01:52:50,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:50,037 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:52:50,037 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.04) internal successors, (51), 24 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 01:52:50,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:50,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:50,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-02 01:52:50,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:50,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:50,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:50,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-02 01:52:50,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-02 01:52:50,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:52:50,533 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:52:50,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:52:50,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1904474506, now seen corresponding path program 5 times [2021-06-02 01:52:50,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:52:50,533 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733465445] [2021-06-02 01:52:50,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:52:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:52:50,861 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-02 01:52:50,861 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:52:50,862 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733465445] [2021-06-02 01:52:50,862 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733465445] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:52:50,862 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812889117] [2021-06-02 01:52:50,862 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 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 01:52:50,902 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-06-02 01:52:50,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:52:50,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2021-06-02 01:52:50,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:52:51,735 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2021-06-02 01:52:52,093 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:52:52,093 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812889117] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:52:52,093 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:52:52,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16] total 26 [2021-06-02 01:52:52,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660357509] [2021-06-02 01:52:52,094 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-02 01:52:52,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:52:52,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-02 01:52:52,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2021-06-02 01:52:52,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:52,095 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:52:52,095 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.037037037037037) internal successors, (55), 26 states have internal predecessors, (55), 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 01:52:52,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:52,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:52,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-02 01:52:52,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-02 01:52:52,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:52,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:52,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:52,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-02 01:52:52,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-02 01:52:52,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-02 01:52:52,906 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:52:52,906 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:52:52,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:52:52,906 INFO L82 PathProgramCache]: Analyzing trace with hash -72906826, now seen corresponding path program 6 times [2021-06-02 01:52:52,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:52:52,907 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208130105] [2021-06-02 01:52:52,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:52:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:52:53,388 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-06-02 01:52:53,389 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:52:53,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208130105] [2021-06-02 01:52:53,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208130105] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:52:53,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807760398] [2021-06-02 01:52:53,389 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 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 01:52:53,433 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2021-06-02 01:52:53,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:52:53,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 26 conjunts are in the unsatisfiable core [2021-06-02 01:52:53,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:52:54,222 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2021-06-02 01:52:54,828 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2021-06-02 01:52:55,161 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:52:55,161 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807760398] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:52:55,161 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:52:55,162 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 21] total 33 [2021-06-02 01:52:55,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771987992] [2021-06-02 01:52:55,162 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-02 01:52:55,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:52:55,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-02 01:52:55,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=990, Unknown=0, NotChecked=0, Total=1122 [2021-06-02 01:52:55,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:55,163 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:52:55,163 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 1.911764705882353) internal successors, (65), 33 states have internal predecessors, (65), 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 01:52:55,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:55,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:55,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-02 01:52:55,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-02 01:52:55,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-02 01:52:55,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:56,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:56,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:56,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-02 01:52:56,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-02 01:52:56,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-02 01:52:56,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-02 01:52:56,423 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-06-02 01:52:56,424 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:52:56,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:52:56,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1873519174, now seen corresponding path program 7 times [2021-06-02 01:52:56,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:52:56,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586660217] [2021-06-02 01:52:56,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:52:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:52:56,459 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-06-02 01:52:56,460 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:52:56,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586660217] [2021-06-02 01:52:56,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586660217] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 01:52:56,460 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-02 01:52:56,460 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-02 01:52:56,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758120395] [2021-06-02 01:52:56,461 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-02 01:52:56,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:52:56,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-02 01:52:56,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-02 01:52:56,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:56,465 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:52:56,465 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 01:52:56,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:56,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:56,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-02 01:52:56,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-02 01:52:56,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-02 01:52:56,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-02 01:52:56,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:56,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:56,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:56,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-02 01:52:56,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-02 01:52:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-02 01:52:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-02 01:52:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:56,486 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-02 01:52:56,486 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:52:56,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:52:56,487 INFO L82 PathProgramCache]: Analyzing trace with hash 478880434, now seen corresponding path program 8 times [2021-06-02 01:52:56,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:52:56,487 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315523504] [2021-06-02 01:52:56,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:52:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:52:56,941 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-06-02 01:52:56,942 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:52:56,942 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315523504] [2021-06-02 01:52:56,942 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315523504] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:52:56,942 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817033971] [2021-06-02 01:52:56,942 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 01:52:56,991 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-02 01:52:56,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:52:56,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 29 conjunts are in the unsatisfiable core [2021-06-02 01:52:56,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:52:58,670 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:52:58,670 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817033971] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:52:58,670 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:52:58,670 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 22] total 33 [2021-06-02 01:52:58,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808002676] [2021-06-02 01:52:58,671 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-02 01:52:58,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:52:58,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-02 01:52:58,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1001, Unknown=0, NotChecked=0, Total=1122 [2021-06-02 01:52:58,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:58,672 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:52:58,672 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.0588235294117645) internal successors, (70), 33 states have internal predecessors, (70), 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 01:52:58,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:58,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:58,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-02 01:52:58,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-02 01:52:58,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-02 01:52:58,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-02 01:52:58,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:52:58,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:52:59,520 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2021-06-02 01:53:00,641 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-06-02 01:53:01,415 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 55 [2021-06-02 01:53:02,892 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-06-02 01:53:03,484 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2021-06-02 01:53:03,629 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 50 [2021-06-02 01:53:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:53:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:53:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-02 01:53:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-02 01:53:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-02 01:53:06,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-02 01:53:06,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:53:06,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-06-02 01:53:06,248 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:53:06,256 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-02 01:53:06,257 INFO L202 PluginConnector]: Adding new model threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.06 01:53:06 BasicIcfg [2021-06-02 01:53:06,257 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-02 01:53:06,258 INFO L168 Benchmark]: Toolchain (without parser) took 19394.09 ms. Allocated memory was 350.2 MB in the beginning and 507.5 MB in the end (delta: 157.3 MB). Free memory was 330.2 MB in the beginning and 223.2 MB in the end (delta: 107.0 MB). Peak memory consumption was 266.2 MB. Max. memory is 16.0 GB. [2021-06-02 01:53:06,258 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 350.2 MB. Free memory was 331.4 MB in the beginning and 331.3 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-02 01:53:06,258 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.72 ms. Allocated memory is still 350.2 MB. Free memory was 330.2 MB in the beginning and 328.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-02 01:53:06,258 INFO L168 Benchmark]: Boogie Preprocessor took 13.30 ms. Allocated memory is still 350.2 MB. Free memory was 328.7 MB in the beginning and 327.8 MB in the end (delta: 908.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-02 01:53:06,258 INFO L168 Benchmark]: RCFGBuilder took 281.68 ms. Allocated memory is still 350.2 MB. Free memory was 327.7 MB in the beginning and 315.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-02 01:53:06,258 INFO L168 Benchmark]: TraceAbstraction took 19057.07 ms. Allocated memory was 350.2 MB in the beginning and 507.5 MB in the end (delta: 157.3 MB). Free memory was 315.5 MB in the beginning and 223.2 MB in the end (delta: 92.3 MB). Peak memory consumption was 251.6 MB. Max. memory is 16.0 GB. [2021-06-02 01:53:06,259 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 350.2 MB. Free memory was 331.4 MB in the beginning and 331.3 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 26.72 ms. Allocated memory is still 350.2 MB. Free memory was 330.2 MB in the beginning and 328.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.30 ms. Allocated memory is still 350.2 MB. Free memory was 328.7 MB in the beginning and 327.8 MB in the end (delta: 908.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 281.68 ms. Allocated memory is still 350.2 MB. Free memory was 327.7 MB in the beginning and 315.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 19057.07 ms. Allocated memory was 350.2 MB in the beginning and 507.5 MB in the end (delta: 157.3 MB). Free memory was 315.5 MB in the beginning and 223.2 MB in the end (delta: 92.3 MB). Peak memory consumption was 251.6 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: 1106, positive: 816, positive conditional: 816, positive unconditional: 0, negative: 290, negative conditional: 290, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 882, positive: 816, positive conditional: 816, positive unconditional: 0, negative: 66, negative conditional: 66, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 882, positive: 746, positive conditional: 0, positive unconditional: 746, negative: 136, negative conditional: 0, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 27, positive: 24, positive conditional: 0, positive unconditional: 24, 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: 27, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 81, positive: 15, positive conditional: 13, positive unconditional: 2, negative: 66, negative conditional: 63, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 249, positive: 51, positive conditional: 48, positive unconditional: 3, negative: 198, negative conditional: 146, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 882, positive: 722, positive conditional: 0, positive unconditional: 722, negative: 133, negative conditional: 0, negative unconditional: 133, unknown: 27, unknown conditional: 0, unknown unconditional: 27] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 37, Positive conditional cache size: 13, Positive unconditional cache size: 24, Negative cache size: 66, Negative conditional cache size: 63, Negative unconditional cache size: 3, SemanticConditionEliminator.Independence Queries: [ total: 639, positive: 70, positive conditional: 70, positive unconditional: 0, negative: 569, negative conditional: 248, negative unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 639, positive: 70, positive conditional: 70, positive unconditional: 0, negative: 569, negative conditional: 248, negative unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 81, positive: 15, positive conditional: 13, positive unconditional: 2, negative: 66, negative conditional: 63, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 249, positive: 51, positive conditional: 48, positive unconditional: 3, negative: 198, negative conditional: 146, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 639, positive: 57, positive conditional: 57, positive unconditional: 0, negative: 506, negative conditional: 185, negative unconditional: 321, unknown: 76, unknown conditional: 76, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 37, Positive conditional cache size: 13, Positive unconditional cache size: 24, Negative cache size: 66, Negative conditional cache size: 63, Negative unconditional cache size: 3, Eliminated conditions: 321, SemanticConditionEliminator.Independence Queries: [ total: 639, positive: 70, positive conditional: 70, positive unconditional: 0, negative: 569, negative conditional: 248, negative unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 639, positive: 70, positive conditional: 70, positive unconditional: 0, negative: 569, negative conditional: 248, negative unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 81, positive: 15, positive conditional: 13, positive unconditional: 2, negative: 66, negative conditional: 63, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 249, positive: 51, positive conditional: 48, positive unconditional: 3, negative: 198, negative conditional: 146, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 639, positive: 57, positive conditional: 57, positive unconditional: 0, negative: 506, negative conditional: 185, negative unconditional: 321, unknown: 76, unknown conditional: 76, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 37, Positive conditional cache size: 13, Positive unconditional cache size: 24, Negative cache size: 66, Negative conditional cache size: 63, Negative unconditional cache size: 3, Eliminated conditions: 321, SemanticConditionEliminator.Independence Queries: [ total: 639, positive: 70, positive conditional: 70, positive unconditional: 0, negative: 569, negative conditional: 248, negative unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 639, positive: 70, positive conditional: 70, positive unconditional: 0, negative: 569, negative conditional: 248, negative unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 81, positive: 15, positive conditional: 13, positive unconditional: 2, negative: 66, negative conditional: 63, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 249, positive: 51, positive conditional: 48, positive unconditional: 3, negative: 198, negative conditional: 146, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 639, positive: 57, positive conditional: 57, positive unconditional: 0, negative: 506, negative conditional: 185, negative unconditional: 321, unknown: 76, unknown conditional: 76, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 37, Positive conditional cache size: 13, Positive unconditional cache size: 24, Negative cache size: 66, Negative conditional cache size: 63, Negative unconditional cache size: 3, Eliminated conditions: 321, SemanticConditionEliminator.Independence Queries: [ total: 639, positive: 70, positive conditional: 70, positive unconditional: 0, negative: 569, negative conditional: 248, negative unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 639, positive: 70, positive conditional: 70, positive unconditional: 0, negative: 569, negative conditional: 248, negative unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 81, positive: 15, positive conditional: 13, positive unconditional: 2, negative: 66, negative conditional: 63, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 249, positive: 51, positive conditional: 48, positive unconditional: 3, negative: 198, negative conditional: 146, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 639, positive: 57, positive conditional: 57, positive unconditional: 0, negative: 506, negative conditional: 185, negative unconditional: 321, unknown: 76, unknown conditional: 76, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 37, Positive conditional cache size: 13, Positive unconditional cache size: 24, Negative cache size: 66, Negative conditional cache size: 63, Negative unconditional cache size: 3, Eliminated conditions: 321, SemanticConditionEliminator.Independence Queries: [ total: 639, positive: 70, positive conditional: 70, positive unconditional: 0, negative: 569, negative conditional: 248, negative unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 639, positive: 70, positive conditional: 70, positive unconditional: 0, negative: 569, negative conditional: 248, negative unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 81, positive: 15, positive conditional: 13, positive unconditional: 2, negative: 66, negative conditional: 63, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 249, positive: 51, positive conditional: 48, positive unconditional: 3, negative: 198, negative conditional: 146, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 639, positive: 57, positive conditional: 57, positive unconditional: 0, negative: 506, negative conditional: 185, negative unconditional: 321, unknown: 76, unknown conditional: 76, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 37, Positive conditional cache size: 13, Positive unconditional cache size: 24, Negative cache size: 66, Negative conditional cache size: 63, Negative unconditional cache size: 3, Eliminated conditions: 321, SemanticConditionEliminator.Independence Queries: [ total: 639, positive: 70, positive conditional: 70, positive unconditional: 0, negative: 569, negative conditional: 248, negative unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 639, positive: 70, positive conditional: 70, positive unconditional: 0, negative: 569, negative conditional: 248, negative unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 81, positive: 15, positive conditional: 13, positive unconditional: 2, negative: 66, negative conditional: 63, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 249, positive: 51, positive conditional: 48, positive unconditional: 3, negative: 198, negative conditional: 146, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 639, positive: 57, positive conditional: 57, positive unconditional: 0, negative: 506, negative conditional: 185, negative unconditional: 321, unknown: 76, unknown conditional: 76, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 37, Positive conditional cache size: 13, Positive unconditional cache size: 24, Negative cache size: 66, Negative conditional cache size: 63, Negative unconditional cache size: 3, Eliminated conditions: 321, SemanticConditionEliminator.Independence Queries: [ total: 639, positive: 70, positive conditional: 70, positive unconditional: 0, negative: 569, negative conditional: 248, negative unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 639, positive: 70, positive conditional: 70, positive unconditional: 0, negative: 569, negative conditional: 248, negative unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 81, positive: 15, positive conditional: 13, positive unconditional: 2, negative: 66, negative conditional: 63, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 249, positive: 51, positive conditional: 48, positive unconditional: 3, negative: 198, negative conditional: 146, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 639, positive: 57, positive conditional: 57, positive unconditional: 0, negative: 506, negative conditional: 185, negative unconditional: 321, unknown: 76, unknown conditional: 76, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 37, Positive conditional cache size: 13, Positive unconditional cache size: 24, Negative cache size: 66, Negative conditional cache size: 63, Negative unconditional cache size: 3, Eliminated conditions: 321, SemanticConditionEliminator.Independence Queries: [ total: 639, positive: 70, positive conditional: 70, positive unconditional: 0, negative: 569, negative conditional: 248, negative unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 639, positive: 70, positive conditional: 70, positive unconditional: 0, negative: 569, negative conditional: 248, negative unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 81, positive: 15, positive conditional: 13, positive unconditional: 2, negative: 66, negative conditional: 63, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 249, positive: 51, positive conditional: 48, positive unconditional: 3, negative: 198, negative conditional: 146, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 639, positive: 57, positive conditional: 57, positive unconditional: 0, negative: 506, negative conditional: 185, negative unconditional: 321, unknown: 76, unknown conditional: 76, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 37, Positive conditional cache size: 13, Positive unconditional cache size: 24, Negative cache size: 66, Negative conditional cache size: 63, Negative unconditional cache size: 3, Eliminated conditions: 321 ], Maximal queried relation: 8, Independence queries for same thread: 224 - PositiveResult [Line: 55]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 34 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18938.6ms, OverallIterations: 8, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.2ms, PartialOrderReductionTime: 9594.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 186, 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: 42.6ms SsaConstructionTime, 203.9ms SatisfiabilityAnalysisTime, 7727.8ms InterpolantComputationTime, 414 NumberOfCodeBlocks, 414 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 401 ConstructedInterpolants, 0 QuantifiedInterpolants, 12804 SizeOfPredicates, 25 NumberOfNonLiveVariables, 248 ConjunctsInSsa, 109 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 222/723 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...