/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Symm.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 21:10:29,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 21:10:29,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 21:10:29,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-16 21:10:29,871 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Symm.epf [2021-06-16 21:10:29,897 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 21:10:29,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 21:10:29,897 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-16 21:10:29,898 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-16 21:10:29,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 21:10:29,899 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 21:10:29,899 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 21:10:29,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 21:10:29,900 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 21:10:29,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 21:10:29,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 21:10:29,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 21:10:29,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 21:10:29,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 21:10:29,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 21:10:29,901 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 21:10:29,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 21:10:29,901 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 21:10:29,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 21:10:29,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 21:10:29,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 21:10:29,902 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 21:10:29,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 21:10:29,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 21:10:29,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 21:10:29,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 21:10:29,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 21:10:29,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 21:10:29,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 21:10:29,903 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 21:10:29,903 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-16 21:10:29,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 21:10:29,903 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-16 21:10:29,903 INFO L138 SettingsManager]: * Limit POR to symmetric independence in concurrent analysis=true [2021-06-16 21:10:29,903 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 21:10:30,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 21:10:30,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 21:10:30,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 21:10:30,188 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-16 21:10:30,189 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-16 21:10:30,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl [2021-06-16 21:10:30,190 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl' [2021-06-16 21:10:30,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 21:10:30,280 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-16 21:10:30,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 21:10:30,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 21:10:30,281 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 21:10:30,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:10:30" (1/1) ... [2021-06-16 21:10:30,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:10:30" (1/1) ... [2021-06-16 21:10:30,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 21:10:30,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 21:10:30,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 21:10:30,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 21:10:30,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:10:30" (1/1) ... [2021-06-16 21:10:30,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:10:30" (1/1) ... [2021-06-16 21:10:30,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:10:30" (1/1) ... [2021-06-16 21:10:30,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:10:30" (1/1) ... [2021-06-16 21:10:30,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:10:30" (1/1) ... [2021-06-16 21:10:30,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:10:30" (1/1) ... [2021-06-16 21:10:30,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:10:30" (1/1) ... [2021-06-16 21:10:30,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 21:10:30,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 21:10:30,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 21:10:30,318 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 21:10:30,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:10:30" (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 [2021-06-16 21:10:30,463 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-16 21:10:30,463 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-16 21:10:30,463 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-16 21:10:30,463 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-16 21:10:30,463 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-16 21:10:30,463 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-16 21:10:30,464 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-16 21:10:30,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 21:10:30,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 21:10:30,464 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-16 21:10:30,464 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-16 21:10:30,464 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-16 21:10:30,465 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 21:10:30,617 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 21:10:30,617 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-16 21:10:30,618 INFO L202 PluginConnector]: Adding new model threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 09:10:30 BoogieIcfgContainer [2021-06-16 21:10:30,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 21:10:30,619 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 21:10:30,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 21:10:30,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 21:10:30,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:10:30" (1/2) ... [2021-06-16 21:10:30,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec34f35 and model type threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 09:10:30, skipping insertion in model container [2021-06-16 21:10:30,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 09:10:30" (2/2) ... [2021-06-16 21:10:30,623 INFO L111 eAbstractionObserver]: Analyzing ICFG threaded-sum-3.wvr.bpl [2021-06-16 21:10:30,626 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 21:10:30,627 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 21:10:30,627 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 21:10:30,627 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 21:10:30,651 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-16 21:10:30,664 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 [2021-06-16 21:10:30,741 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 21:10:30,742 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 21:10:30,742 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 21:10:30,742 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 21:10:30,742 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 21:10:30,742 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 21:10:30,759 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 21:10:30,760 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 21:10:30,846 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:10:30,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:10:30,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1056072297, now seen corresponding path program 1 times [2021-06-16 21:10:30,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:10:30,855 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633816705] [2021-06-16 21:10:30,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:10:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:10:30,956 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-16 21:10:30,957 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:10:30,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633816705] [2021-06-16 21:10:30,957 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633816705] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 21:10:30,958 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 21:10:30,958 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-16 21:10:30,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110760578] [2021-06-16 21:10:30,961 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-16 21:10:30,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:10:30,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-16 21:10:30,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-16 21:10:30,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:10:30,972 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:10:30,973 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2021-06-16 21:10:30,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:10:31,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:10:31,077 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 21:10:31,077 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:10:31,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:10:31,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1812327050, now seen corresponding path program 2 times [2021-06-16 21:10:31,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:10:31,078 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201565164] [2021-06-16 21:10:31,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:10:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:10:31,149 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-16 21:10:31,149 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:10:31,149 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201565164] [2021-06-16 21:10:31,149 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201565164] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:10:31,149 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893590076] [2021-06-16 21:10:31,149 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 [2021-06-16 21:10:31,205 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-16 21:10:31,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:10:31,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-16 21:10:31,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:10:31,326 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-16 21:10:31,326 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893590076] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:10:31,326 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:10:31,326 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-06-16 21:10:31,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480833031] [2021-06-16 21:10:31,327 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-16 21:10:31,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:10:31,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-16 21:10:31,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-16 21:10:31,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:10:31,329 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:10:31,329 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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) [2021-06-16 21:10:31,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:10:31,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:10:31,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:10:31,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:10:31,624 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:10:31,624 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:10:31,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:10:31,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1884014649, now seen corresponding path program 3 times [2021-06-16 21:10:31,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:10:31,625 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519778680] [2021-06-16 21:10:31,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:10:31,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:10:31,654 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-16 21:10:31,654 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:10:31,654 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519778680] [2021-06-16 21:10:31,655 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519778680] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 21:10:31,655 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 21:10:31,655 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-16 21:10:31,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196550285] [2021-06-16 21:10:31,655 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-16 21:10:31,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:10:31,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-16 21:10:31,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-16 21:10:31,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:10:31,656 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:10:31,656 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-06-16 21:10:31,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:10:31,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:10:31,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:10:31,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:10:31,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:10:31,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:31,725 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-16 21:10:31,725 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:10:31,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:10:31,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1009993817, now seen corresponding path program 4 times [2021-06-16 21:10:31,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:10:31,726 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084962876] [2021-06-16 21:10:31,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:10:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:10:31,808 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-16 21:10:31,809 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:10:31,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084962876] [2021-06-16 21:10:31,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084962876] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:10:31,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326938886] [2021-06-16 21:10:31,809 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 [2021-06-16 21:10:31,843 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-16 21:10:31,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:10:31,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-16 21:10:31,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:10:31,938 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-16 21:10:31,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326938886] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:10:31,939 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:10:31,939 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 10 [2021-06-16 21:10:31,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258584523] [2021-06-16 21:10:31,939 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-16 21:10:31,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:10:31,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-16 21:10:31,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-06-16 21:10:31,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:10:31,941 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:10:31,941 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) [2021-06-16 21:10:31,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:10:31,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:10:31,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:31,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:10:32,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:10:32,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:10:32,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:32,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:10:32,279 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:10:32,279 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:10:32,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:10:32,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1350895805, now seen corresponding path program 5 times [2021-06-16 21:10:32,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:10:32,280 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207652397] [2021-06-16 21:10:32,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:10:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:10:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:10:32,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:10:32,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207652397] [2021-06-16 21:10:32,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207652397] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:10:32,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804935993] [2021-06-16 21:10:32,603 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 [2021-06-16 21:10:32,665 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-16 21:10:32,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:10:32,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 24 conjunts are in the unsatisfiable core [2021-06-16 21:10:32,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:10:33,436 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:10:33,436 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804935993] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:10:33,436 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:10:33,436 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 35 [2021-06-16 21:10:33,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805700419] [2021-06-16 21:10:33,437 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-06-16 21:10:33,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:10:33,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-06-16 21:10:33,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1068, Unknown=0, NotChecked=0, Total=1260 [2021-06-16 21:10:33,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:10:33,439 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:10:33,439 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.0277777777777777) internal successors, (73), 35 states have internal predecessors, (73), 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) [2021-06-16 21:10:33,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:10:33,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:10:33,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:33,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:10:33,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:10:33,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:10:33,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:10:33,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:33,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:10:33,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-16 21:10:33,964 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:10:33,967 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:10:33,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:10:33,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1055673943, now seen corresponding path program 6 times [2021-06-16 21:10:33,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:10:33,968 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026865096] [2021-06-16 21:10:33,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:10:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:10:34,108 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 6 proven. 71 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-16 21:10:34,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:10:34,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026865096] [2021-06-16 21:10:34,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026865096] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:10:34,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537051148] [2021-06-16 21:10:34,109 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 [2021-06-16 21:10:34,161 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-06-16 21:10:34,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:10:34,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 20 conjunts are in the unsatisfiable core [2021-06-16 21:10:34,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:10:34,381 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 8 proven. 58 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-16 21:10:34,381 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537051148] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:10:34,381 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:10:34,381 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 21 [2021-06-16 21:10:34,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759516756] [2021-06-16 21:10:34,382 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-16 21:10:34,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:10:34,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-16 21:10:34,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2021-06-16 21:10:34,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:10:34,382 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:10:34,383 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 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) [2021-06-16 21:10:34,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:10:34,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:10:34,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:34,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:10:34,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-16 21:10:34,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:10:34,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:10:34,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:10:34,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:34,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:10:34,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-16 21:10:34,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-16 21:10:35,094 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-16 21:10:35,094 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:10:35,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:10:35,094 INFO L82 PathProgramCache]: Analyzing trace with hash 2010959725, now seen corresponding path program 7 times [2021-06-16 21:10:35,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:10:35,095 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234694851] [2021-06-16 21:10:35,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:10:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:10:35,112 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-06-16 21:10:35,112 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:10:35,112 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234694851] [2021-06-16 21:10:35,112 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234694851] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 21:10:35,112 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 21:10:35,112 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-16 21:10:35,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896535304] [2021-06-16 21:10:35,112 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-16 21:10:35,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:10:35,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-16 21:10:35,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-16 21:10:35,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:10:35,113 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:10:35,113 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-06-16 21:10:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:10:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:10:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:10:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-16 21:10:35,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-16 21:10:35,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:10:35,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:10:35,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:10:35,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:35,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:10:35,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-16 21:10:35,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-16 21:10:35,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:35,155 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-16 21:10:35,155 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:10:35,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:10:35,155 INFO L82 PathProgramCache]: Analyzing trace with hash 456180111, now seen corresponding path program 8 times [2021-06-16 21:10:35,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:10:35,155 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109320109] [2021-06-16 21:10:35,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:10:35,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:10:35,279 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 8 proven. 72 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-06-16 21:10:35,279 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:10:35,280 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109320109] [2021-06-16 21:10:35,280 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109320109] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:10:35,280 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343256780] [2021-06-16 21:10:35,280 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 [2021-06-16 21:10:35,309 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-16 21:10:35,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:10:35,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 21 conjunts are in the unsatisfiable core [2021-06-16 21:10:35,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:10:35,635 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 71 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-06-16 21:10:35,635 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343256780] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:10:35,635 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:10:35,636 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18] total 27 [2021-06-16 21:10:35,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583571895] [2021-06-16 21:10:35,636 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-16 21:10:35,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:10:35,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-16 21:10:35,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2021-06-16 21:10:35,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:10:35,637 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:10:35,637 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.4444444444444446) internal successors, (66), 27 states have internal predecessors, (66), 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) [2021-06-16 21:10:35,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:10:35,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:10:35,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:35,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:10:35,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-16 21:10:35,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-16 21:10:35,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:35,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:10:36,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:10:36,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:10:36,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:36,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:10:36,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-16 21:10:36,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-16 21:10:36,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:36,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-16 21:10:36,892 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-06-16 21:10:36,892 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:10:36,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:10:36,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1678142472, now seen corresponding path program 9 times [2021-06-16 21:10:36,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:10:36,893 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133320337] [2021-06-16 21:10:36,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:10:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:10:37,101 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 25 proven. 132 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-16 21:10:37,102 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:10:37,102 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133320337] [2021-06-16 21:10:37,102 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133320337] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:10:37,102 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660520398] [2021-06-16 21:10:37,102 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:10:37,141 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2021-06-16 21:10:37,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:10:37,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-16 21:10:37,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:10:37,625 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 25 proven. 131 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-06-16 21:10:37,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660520398] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:10:37,626 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:10:37,626 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21] total 33 [2021-06-16 21:10:37,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350252582] [2021-06-16 21:10:37,626 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-06-16 21:10:37,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:10:37,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-06-16 21:10:37,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=849, Unknown=0, NotChecked=0, Total=1056 [2021-06-16 21:10:37,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:10:37,627 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:10:37,627 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.696969696969697) internal successors, (89), 33 states have internal predecessors, (89), 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) [2021-06-16 21:10:37,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:10:37,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:10:37,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:37,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:10:37,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-16 21:10:37,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-16 21:10:37,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:37,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-16 21:10:37,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:10:39,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:10:39,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:10:39,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:39,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:10:39,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-16 21:10:39,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-16 21:10:39,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:39,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-16 21:10:39,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-06-16 21:10:39,776 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:10:39,777 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:10:39,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:10:39,777 INFO L82 PathProgramCache]: Analyzing trace with hash -970826234, now seen corresponding path program 10 times [2021-06-16 21:10:39,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:10:39,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512666544] [2021-06-16 21:10:39,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:10:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:10:40,121 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 60 proven. 308 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-06-16 21:10:40,121 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:10:40,121 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512666544] [2021-06-16 21:10:40,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512666544] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:10:40,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848767392] [2021-06-16 21:10:40,122 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:10:40,160 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-16 21:10:40,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:10:40,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 41 conjunts are in the unsatisfiable core [2021-06-16 21:10:40,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:10:40,838 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 47 proven. 316 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-06-16 21:10:40,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848767392] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:10:40,838 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:10:40,838 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 25] total 39 [2021-06-16 21:10:40,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946540268] [2021-06-16 21:10:40,839 INFO L462 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-06-16 21:10:40,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:10:40,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-06-16 21:10:40,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=1196, Unknown=0, NotChecked=0, Total=1482 [2021-06-16 21:10:40,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:10:40,840 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:10:40,840 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 39 states, 39 states have (on average 2.9743589743589745) internal successors, (116), 39 states have internal predecessors, (116), 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) [2021-06-16 21:10:40,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:10:40,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:10:40,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:40,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:10:40,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-16 21:10:40,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-16 21:10:40,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:40,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-16 21:10:40,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-06-16 21:10:40,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:10:44,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:10:44,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:10:44,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:44,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:10:44,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-16 21:10:44,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-16 21:10:44,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:10:44,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-16 21:10:44,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-16 21:10:44,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-06-16 21:10:44,382 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2021-06-16 21:10:44,382 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:10:44,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:10:44,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1115294103, now seen corresponding path program 11 times [2021-06-16 21:10:44,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:10:44,383 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725856690] [2021-06-16 21:10:44,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:10:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:10:51,541 WARN L205 SmtUtils]: Spent 3.47 s on a formula simplification. DAG size of input: 122 DAG size of output: 37 [2021-06-16 21:10:56,395 WARN L205 SmtUtils]: Spent 4.80 s on a formula simplification. DAG size of input: 152 DAG size of output: 45 [2021-06-16 21:11:01,756 WARN L205 SmtUtils]: Spent 5.29 s on a formula simplification. DAG size of input: 159 DAG size of output: 41 [2021-06-16 21:11:09,107 WARN L205 SmtUtils]: Spent 7.28 s on a formula simplification. DAG size of input: 187 DAG size of output: 51 [2021-06-16 21:11:16,063 WARN L205 SmtUtils]: Spent 6.87 s on a formula simplification. DAG size of input: 174 DAG size of output: 48 [2021-06-16 21:11:23,595 WARN L205 SmtUtils]: Spent 7.46 s on a formula simplification. DAG size of input: 180 DAG size of output: 49 [2021-06-16 21:11:32,187 WARN L205 SmtUtils]: Spent 8.52 s on a formula simplification. DAG size of input: 168 DAG size of output: 39 [2021-06-16 21:11:55,082 WARN L205 SmtUtils]: Spent 22.82 s on a formula simplification. DAG size of input: 252 DAG size of output: 42 [2021-06-16 21:12:14,155 WARN L205 SmtUtils]: Spent 18.97 s on a formula simplification. DAG size of input: 243 DAG size of output: 39 [2021-06-16 21:12:22,685 WARN L205 SmtUtils]: Spent 8.48 s on a formula simplification. DAG size of input: 166 DAG size of output: 39 [2021-06-16 21:12:31,370 WARN L205 SmtUtils]: Spent 8.61 s on a formula simplification. DAG size of input: 165 DAG size of output: 38 [2021-06-16 21:12:43,796 WARN L205 SmtUtils]: Spent 12.36 s on a formula simplification. DAG size of input: 165 DAG size of output: 37 [2021-06-16 21:12:54,296 WARN L205 SmtUtils]: Spent 10.44 s on a formula simplification. DAG size of input: 198 DAG size of output: 39 [2021-06-16 21:13:09,044 WARN L205 SmtUtils]: Spent 14.66 s on a formula simplification. DAG size of input: 203 DAG size of output: 45 [2021-06-16 21:13:09,205 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 48 [2021-06-16 21:13:09,507 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 51 [2021-06-16 21:13:09,745 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 48 [2021-06-16 21:13:10,052 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 50 [2021-06-16 21:13:10,486 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 48 [2021-06-16 21:13:10,705 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 48 [2021-06-16 21:13:11,063 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 47 [2021-06-16 21:13:11,438 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 52 [2021-06-16 21:13:11,817 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 62 [2021-06-16 21:13:12,203 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 63 [2021-06-16 21:13:12,755 WARN L205 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 54 [2021-06-16 21:13:13,210 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 53 [2021-06-16 21:13:13,781 WARN L205 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 51 [2021-06-16 21:13:14,486 WARN L205 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 58 [2021-06-16 21:13:15,207 WARN L205 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 51 [2021-06-16 21:13:16,542 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 223 DAG size of output: 59 [2021-06-16 21:13:18,872 WARN L205 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 188 DAG size of output: 49 [2021-06-16 21:13:20,814 WARN L205 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 188 DAG size of output: 49 [2021-06-16 21:13:22,837 WARN L205 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 192 DAG size of output: 50 [2021-06-16 21:13:25,577 WARN L205 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 201 DAG size of output: 53 [2021-06-16 21:13:29,358 WARN L205 SmtUtils]: Spent 3.76 s on a formula simplification. DAG size of input: 198 DAG size of output: 75 [2021-06-16 21:13:32,339 WARN L205 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 199 DAG size of output: 74 [2021-06-16 21:13:36,595 WARN L205 SmtUtils]: Spent 4.23 s on a formula simplification. DAG size of input: 204 DAG size of output: 72 [2021-06-16 21:13:36,753 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 22 [2021-06-16 21:13:38,458 WARN L205 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 207 DAG size of output: 60 [2021-06-16 21:13:45,725 WARN L205 SmtUtils]: Spent 7.13 s on a formula simplification. DAG size of input: 263 DAG size of output: 53 [2021-06-16 21:13:55,132 WARN L205 SmtUtils]: Spent 9.36 s on a formula simplification. DAG size of input: 268 DAG size of output: 51 [2021-06-16 21:14:04,373 WARN L205 SmtUtils]: Spent 9.19 s on a formula simplification. DAG size of input: 268 DAG size of output: 59 [2021-06-16 21:14:13,925 WARN L205 SmtUtils]: Spent 9.41 s on a formula simplification. DAG size of input: 260 DAG size of output: 52 [2021-06-16 21:14:23,575 WARN L205 SmtUtils]: Spent 9.62 s on a formula simplification. DAG size of input: 313 DAG size of output: 51 [2021-06-16 21:14:30,228 WARN L205 SmtUtils]: Spent 6.53 s on a formula simplification. DAG size of input: 306 DAG size of output: 52 [2021-06-16 21:14:48,932 WARN L205 SmtUtils]: Spent 18.64 s on a formula simplification. DAG size of input: 318 DAG size of output: 69 [2021-06-16 21:14:49,119 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 28 [2021-06-16 21:15:08,233 WARN L205 SmtUtils]: Spent 19.11 s on a formula simplification. DAG size of input: 318 DAG size of output: 72 [2021-06-16 21:15:08,437 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 29 [2021-06-16 21:15:32,362 WARN L205 SmtUtils]: Spent 23.92 s on a formula simplification. DAG size of input: 320 DAG size of output: 75 [2021-06-16 21:15:32,560 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 29 [2021-06-16 21:15:53,364 WARN L205 SmtUtils]: Spent 20.80 s on a formula simplification. DAG size of input: 320 DAG size of output: 75 [2021-06-16 21:15:53,551 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 27 [2021-06-16 21:16:25,159 WARN L205 SmtUtils]: Spent 31.60 s on a formula simplification. DAG size of input: 288 DAG size of output: 62 [2021-06-16 21:16:49,500 WARN L205 SmtUtils]: Spent 24.31 s on a formula simplification. DAG size of input: 288 DAG size of output: 67 [2021-06-16 21:17:22,172 WARN L205 SmtUtils]: Spent 32.55 s on a formula simplification. DAG size of input: 278 DAG size of output: 64 [2021-06-16 21:17:48,972 WARN L205 SmtUtils]: Spent 26.67 s on a formula simplification. DAG size of input: 278 DAG size of output: 64 [2021-06-16 21:18:14,794 WARN L205 SmtUtils]: Spent 25.69 s on a formula simplification. DAG size of input: 277 DAG size of output: 67 [2021-06-16 21:18:43,542 WARN L205 SmtUtils]: Spent 28.61 s on a formula simplification. DAG size of input: 314 DAG size of output: 72 [2021-06-16 21:19:30,096 WARN L205 SmtUtils]: Spent 46.42 s on a formula simplification. DAG size of input: 316 DAG size of output: 72 [2021-06-16 21:20:07,961 WARN L205 SmtUtils]: Spent 37.73 s on a formula simplification. DAG size of input: 349 DAG size of output: 68 [2021-06-16 21:20:35,041 WARN L205 SmtUtils]: Spent 26.98 s on a formula simplification. DAG size of input: 386 DAG size of output: 73 [2021-06-16 21:21:03,658 WARN L205 SmtUtils]: Spent 28.48 s on a formula simplification. DAG size of input: 348 DAG size of output: 83 [2021-06-16 21:21:33,639 WARN L205 SmtUtils]: Spent 29.82 s on a formula simplification. DAG size of input: 340 DAG size of output: 90 [2021-06-16 21:22:01,850 WARN L205 SmtUtils]: Spent 28.05 s on a formula simplification. DAG size of input: 335 DAG size of output: 87 [2021-06-16 21:22:35,696 WARN L205 SmtUtils]: Spent 33.69 s on a formula simplification. DAG size of input: 338 DAG size of output: 80 [2021-06-16 21:23:13,356 WARN L205 SmtUtils]: Spent 37.51 s on a formula simplification. DAG size of input: 341 DAG size of output: 77 [2021-06-16 21:23:54,783 WARN L205 SmtUtils]: Spent 41.27 s on a formula simplification. DAG size of input: 346 DAG size of output: 78 [2021-06-16 21:24:32,950 WARN L205 SmtUtils]: Spent 38.01 s on a formula simplification. DAG size of input: 346 DAG size of output: 67 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown