/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-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc-dec.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-07 03:35:54,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-07 03:35:54,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-07 03:35:54,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-07 03:35:54,448 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-Random7777.epf [2021-06-07 03:35:54,471 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-07 03:35:54,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-07 03:35:54,474 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-07 03:35:54,474 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-07 03:35:54,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-07 03:35:54,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-07 03:35:54,476 INFO L138 SettingsManager]: * Use SBE=true [2021-06-07 03:35:54,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-07 03:35:54,477 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-07 03:35:54,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-07 03:35:54,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-07 03:35:54,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-07 03:35:54,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-07 03:35:54,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-07 03:35:54,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-07 03:35:54,478 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-07 03:35:54,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-07 03:35:54,478 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-07 03:35:54,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-07 03:35:54,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-07 03:35:54,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-07 03:35:54,479 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-07 03:35:54,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-07 03:35:54,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 03:35:54,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-07 03:35:54,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-07 03:35:54,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-07 03:35:54,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-07 03:35:54,480 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-07 03:35:54,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-07 03:35:54,480 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-07 03:35:54,480 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-07 03:35:54,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-07 03:35:54,480 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-07 03:35:54,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-07 03:35:54,481 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-07 03:35:54,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-07 03:35:54,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-07 03:35:54,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-07 03:35:54,843 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-07 03:35:54,844 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-07 03:35:54,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc-dec.wvr.bpl [2021-06-07 03:35:54,845 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc-dec.wvr.bpl' [2021-06-07 03:35:54,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-07 03:35:54,879 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-07 03:35:54,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-07 03:35:54,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-07 03:35:54,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-07 03:35:54,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:35:54" (1/1) ... [2021-06-07 03:35:54,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:35:54" (1/1) ... [2021-06-07 03:35:54,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-07 03:35:54,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-07 03:35:54,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-07 03:35:54,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-07 03:35:54,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:35:54" (1/1) ... [2021-06-07 03:35:54,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:35:54" (1/1) ... [2021-06-07 03:35:54,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:35:54" (1/1) ... [2021-06-07 03:35:54,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:35:54" (1/1) ... [2021-06-07 03:35:54,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:35:54" (1/1) ... [2021-06-07 03:35:54,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:35:54" (1/1) ... [2021-06-07 03:35:54,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:35:54" (1/1) ... [2021-06-07 03:35:54,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-07 03:35:54,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-07 03:35:54,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-07 03:35:54,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-07 03:35:54,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:35:54" (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 [2021-06-07 03:35:55,001 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-07 03:35:55,002 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-07 03:35:55,002 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-07 03:35:55,002 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-07 03:35:55,002 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-07 03:35:55,002 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-07 03:35:55,002 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-07 03:35:55,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-07 03:35:55,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-07 03:35:55,003 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-07 03:35:55,003 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-07 03:35:55,003 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-07 03:35:55,004 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-07 03:35:55,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-07 03:35:55,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-07 03:35:55,004 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-06-07 03:35:55,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-06-07 03:35:55,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-06-07 03:35:55,006 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-07 03:35:55,251 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-07 03:35:55,251 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-07 03:35:55,252 INFO L202 PluginConnector]: Adding new model min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 03:35:55 BoogieIcfgContainer [2021-06-07 03:35:55,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-07 03:35:55,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-07 03:35:55,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-07 03:35:55,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-07 03:35:55,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:35:54" (1/2) ... [2021-06-07 03:35:55,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ed2915 and model type min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.06 03:35:55, skipping insertion in model container [2021-06-07 03:35:55,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 03:35:55" (2/2) ... [2021-06-07 03:35:55,258 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-inc-dec.wvr.bpl [2021-06-07 03:35:55,279 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-07 03:35:55,279 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-07 03:35:55,279 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-07 03:35:55,280 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-07 03:35:55,366 INFO L149 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-06-07 03:35:55,384 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 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 [2021-06-07 03:35:55,421 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 03:35:55,421 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 03:35:55,421 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 03:35:55,421 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 03:35:55,421 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 03:35:55,421 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 03:35:55,421 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 03:35:55,421 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-07 03:35:55,514 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:35:55,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:35:55,523 INFO L82 PathProgramCache]: Analyzing trace with hash -170741892, now seen corresponding path program 1 times [2021-06-07 03:35:55,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:35:55,532 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140876590] [2021-06-07 03:35:55,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:35:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:35:55,702 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:35:55,702 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:35:55,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140876590] [2021-06-07 03:35:55,703 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140876590] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:35:55,703 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820486399] [2021-06-07 03:35:55,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-06-07 03:35:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:35:55,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjunts are in the unsatisfiable core [2021-06-07 03:35:55,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:35:55,911 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-07 03:35:55,912 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820486399] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 03:35:55,912 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-07 03:35:55,912 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-06-07 03:35:55,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393529098] [2021-06-07 03:35:55,917 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-07 03:35:55,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:35:55,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-07 03:35:55,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-07 03:35:55,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:35:55,933 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:35:55,934 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 8.25) 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) [2021-06-07 03:35:55,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:35:56,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:56,290 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-07 03:35:56,290 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:35:56,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:35:56,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1106763558, now seen corresponding path program 1 times [2021-06-07 03:35:56,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:35:56,291 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756574654] [2021-06-07 03:35:56,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:35:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:35:56,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:35:56,373 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:35:56,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756574654] [2021-06-07 03:35:56,374 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756574654] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 03:35:56,374 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 03:35:56,374 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-07 03:35:56,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619358213] [2021-06-07 03:35:56,375 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-07 03:35:56,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:35:56,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-07 03:35:56,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-07 03:35:56,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:35:56,377 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:35:56,377 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-06-07 03:35:56,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:56,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:35:56,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:56,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:56,479 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-07 03:35:56,479 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:35:56,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:35:56,481 INFO L82 PathProgramCache]: Analyzing trace with hash -393413622, now seen corresponding path program 1 times [2021-06-07 03:35:56,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:35:56,481 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666300939] [2021-06-07 03:35:56,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:35:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:35:56,616 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:35:56,616 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:35:56,616 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666300939] [2021-06-07 03:35:56,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666300939] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:35:56,616 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124295439] [2021-06-07 03:35:56,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-06-07 03:35:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:35:56,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-07 03:35:56,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:35:56,752 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-07 03:35:56,752 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124295439] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:35:56,752 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:35:56,753 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2021-06-07 03:35:56,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237686698] [2021-06-07 03:35:56,753 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-07 03:35:56,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:35:56,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-07 03:35:56,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-06-07 03:35:56,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:35:56,754 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:35:56,754 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 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) [2021-06-07 03:35:56,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:56,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:56,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:35:56,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:56,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:56,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:35:57,118 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:35:57,118 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:35:57,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:35:57,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1990172644, now seen corresponding path program 2 times [2021-06-07 03:35:57,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:35:57,119 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651894946] [2021-06-07 03:35:57,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:35:57,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:35:57,170 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-07 03:35:57,170 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:35:57,170 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651894946] [2021-06-07 03:35:57,170 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651894946] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:35:57,170 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51966740] [2021-06-07 03:35:57,170 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 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 [2021-06-07 03:35:57,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 03:35:57,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:35:57,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-07 03:35:57,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:35:57,347 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-07 03:35:57,347 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51966740] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:35:57,347 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:35:57,347 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-06-07 03:35:57,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137897283] [2021-06-07 03:35:57,348 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-07 03:35:57,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:35:57,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-07 03:35:57,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-06-07 03:35:57,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:35:57,349 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:35:57,349 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 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) [2021-06-07 03:35:57,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:57,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:57,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:35:57,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:35:57,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:57,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:57,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:35:57,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:35:57,756 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:35:57,756 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:35:57,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:35:57,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1276452514, now seen corresponding path program 3 times [2021-06-07 03:35:57,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:35:57,757 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184367732] [2021-06-07 03:35:57,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:35:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:35:57,824 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-07 03:35:57,825 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:35:57,825 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184367732] [2021-06-07 03:35:57,825 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184367732] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:35:57,825 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680764976] [2021-06-07 03:35:57,825 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 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 [2021-06-07 03:35:57,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-07 03:35:57,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:35:57,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-07 03:35:57,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:35:57,999 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-07 03:35:58,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680764976] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:35:58,000 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:35:58,000 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-06-07 03:35:58,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474071405] [2021-06-07 03:35:58,000 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-07 03:35:58,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:35:58,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-07 03:35:58,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-06-07 03:35:58,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:35:58,001 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:35:58,001 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 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) [2021-06-07 03:35:58,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:58,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:58,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:35:58,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:35:58,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:35:58,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:58,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:58,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:35:58,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-07 03:35:58,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:35:58,432 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:35:58,433 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:35:58,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:35:58,433 INFO L82 PathProgramCache]: Analyzing trace with hash 17075138, now seen corresponding path program 4 times [2021-06-07 03:35:58,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:35:58,434 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931513965] [2021-06-07 03:35:58,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:35:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:35:58,516 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 31 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-06-07 03:35:58,516 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:35:58,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931513965] [2021-06-07 03:35:58,517 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931513965] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:35:58,517 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367201024] [2021-06-07 03:35:58,517 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 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 [2021-06-07 03:35:58,564 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-07 03:35:58,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:35:58,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-07 03:35:58,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:35:58,715 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-06-07 03:35:58,716 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367201024] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:35:58,716 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:35:58,716 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-06-07 03:35:58,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923181574] [2021-06-07 03:35:58,717 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-07 03:35:58,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:35:58,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-07 03:35:58,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2021-06-07 03:35:58,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:35:58,719 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:35:58,720 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 4.5) internal successors, (72), 15 states have internal predecessors, (72), 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) [2021-06-07 03:35:58,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:58,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:58,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:35:58,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-07 03:35:58,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:35:58,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:35:58,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:58,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:58,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:35:58,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-07 03:35:58,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:35:58,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-07 03:35:59,160 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:35:59,161 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:35:59,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:35:59,162 INFO L82 PathProgramCache]: Analyzing trace with hash -335728092, now seen corresponding path program 5 times [2021-06-07 03:35:59,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:35:59,162 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576735479] [2021-06-07 03:35:59,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:35:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:35:59,233 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 18 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-06-07 03:35:59,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:35:59,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576735479] [2021-06-07 03:35:59,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576735479] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:35:59,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425866792] [2021-06-07 03:35:59,234 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 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 [2021-06-07 03:35:59,307 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-07 03:35:59,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:35:59,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-07 03:35:59,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:35:59,523 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 14 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-06-07 03:35:59,524 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425866792] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:35:59,524 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:35:59,524 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2021-06-07 03:35:59,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123624027] [2021-06-07 03:35:59,525 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-07 03:35:59,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:35:59,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-07 03:35:59,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-06-07 03:35:59,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:35:59,526 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:35:59,526 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 4.764705882352941) internal successors, (81), 16 states have internal predecessors, (81), 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) [2021-06-07 03:35:59,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:59,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:59,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:35:59,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-07 03:35:59,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:35:59,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-07 03:35:59,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:35:59,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:59,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:35:59,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:35:59,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-07 03:35:59,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:35:59,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:35:59,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-07 03:36:00,201 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:36:00,201 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:36:00,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:36:00,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1314576032, now seen corresponding path program 6 times [2021-06-07 03:36:00,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:36:00,202 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799494161] [2021-06-07 03:36:00,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:36:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:36:00,291 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 7 proven. 25 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-06-07 03:36:00,291 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:36:00,291 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799494161] [2021-06-07 03:36:00,292 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799494161] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:36:00,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142366544] [2021-06-07 03:36:00,292 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 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 [2021-06-07 03:36:00,346 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-06-07 03:36:00,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:36:00,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-07 03:36:00,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:36:00,507 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 17 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-06-07 03:36:00,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142366544] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:36:00,507 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:36:00,507 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13 [2021-06-07 03:36:00,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766136287] [2021-06-07 03:36:00,508 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-07 03:36:00,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:36:00,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-07 03:36:00,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-06-07 03:36:00,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:36:00,509 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:36:00,510 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 13 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) [2021-06-07 03:36:00,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:36:00,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:36:00,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:36:00,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-07 03:36:00,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:36:00,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:36:00,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-07 03:36:00,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:36:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:36:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:36:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:36:00,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-07 03:36:00,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:36:00,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-07 03:36:00,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-07 03:36:00,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-07 03:36:01,070 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-06-07 03:36:01,071 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:36:01,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:36:01,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1650947254, now seen corresponding path program 7 times [2021-06-07 03:36:01,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:36:01,071 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117069241] [2021-06-07 03:36:01,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:36:01,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:36:01,168 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-06-07 03:36:01,168 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:36:01,168 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117069241] [2021-06-07 03:36:01,168 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117069241] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:36:01,168 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741821130] [2021-06-07 03:36:01,168 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:36:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:36:01,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-07 03:36:01,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:36:01,318 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-06-07 03:36:01,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741821130] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:36:01,318 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:36:01,319 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-06-07 03:36:01,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041668227] [2021-06-07 03:36:01,319 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-07 03:36:01,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:36:01,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-07 03:36:01,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-07 03:36:01,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:36:01,320 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:36:01,320 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 10 states have internal predecessors, (52), 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) [2021-06-07 03:36:01,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:36:01,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:36:01,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:36:01,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-07 03:36:01,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:36:01,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-07 03:36:01,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-07 03:36:01,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-07 03:36:01,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:36:01,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:36:01,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:36:01,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:36:01,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-07 03:36:01,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:36:01,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-07 03:36:01,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-07 03:36:01,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-07 03:36:01,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:36:01,684 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:36:01,685 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:36:01,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:36:01,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1552902328, now seen corresponding path program 8 times [2021-06-07 03:36:01,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:36:01,685 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712512347] [2021-06-07 03:36:01,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:36:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:36:01,798 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-06-07 03:36:01,798 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:36:01,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712512347] [2021-06-07 03:36:01,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712512347] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:36:01,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635473803] [2021-06-07 03:36:01,799 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:36:01,848 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 03:36:01,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:36:01,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-07 03:36:01,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:36:01,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-07 03:36:01,989 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:36:01,990 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:36:01,991 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:36:01,991 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-06-07 03:36:02,054 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-06-07 03:36:02,056 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635473803] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:36:02,056 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:36:02,057 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2021-06-07 03:36:02,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048768106] [2021-06-07 03:36:02,057 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-07 03:36:02,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:36:02,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-07 03:36:02,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-06-07 03:36:02,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:36:02,059 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:36:02,059 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 03:36:02,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:36:02,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:36:02,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:36:02,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-07 03:36:02,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:36:02,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-07 03:36:02,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-07 03:36:02,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-07 03:36:02,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:36:02,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:36:13,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:36:13,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:36:13,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:36:13,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:36:13,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:36:13,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-07 03:36:13,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-06-07 03:36:13,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-07 03:36:13,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:36:13,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 03:36:13,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:36:13,561 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:36:13,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:36:13,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1359404364, now seen corresponding path program 9 times [2021-06-07 03:36:13,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:36:13,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292581719] [2021-06-07 03:36:13,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:36:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:36:13,614 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-06-07 03:36:13,615 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:36:13,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292581719] [2021-06-07 03:36:13,615 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292581719] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:36:13,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404709062] [2021-06-07 03:36:13,615 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:36:13,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-07 03:36:13,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:36:13,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-07 03:36:13,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:36:13,762 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-06-07 03:36:13,762 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404709062] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:36:13,762 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:36:13,763 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-06-07 03:36:13,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946682921] [2021-06-07 03:36:13,763 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-07 03:36:13,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:36:13,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-07 03:36:13,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-07 03:36:13,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:36:13,764 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:36:13,764 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 03:36:13,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:36:13,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:36:13,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:36:13,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:36:13,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:36:13,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-07 03:36:13,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-06-07 03:36:13,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-07 03:36:13,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:36:13,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-07 03:36:13,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:36:18,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:36:18,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:36:18,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:36:18,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:36:18,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:36:18,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-07 03:36:18,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-06-07 03:36:18,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-07 03:36:18,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:36:18,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-07 03:36:18,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:36:18,749 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-06-07 03:36:18,749 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:36:18,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:36:18,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1731994376, now seen corresponding path program 10 times [2021-06-07 03:36:18,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:36:18,750 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470571913] [2021-06-07 03:36:18,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:36:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:36:18,849 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-06-07 03:36:18,849 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:36:18,849 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470571913] [2021-06-07 03:36:18,849 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470571913] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:36:18,849 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567661539] [2021-06-07 03:36:18,850 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:36:18,907 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-07 03:36:18,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:36:18,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-07 03:36:18,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:36:19,011 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-06-07 03:36:19,011 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567661539] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:36:19,011 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:36:19,012 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-06-07 03:36:19,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983979991] [2021-06-07 03:36:19,012 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-07 03:36:19,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:36:19,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-07 03:36:19,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-06-07 03:36:19,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:36:19,013 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:36:19,013 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 03:36:19,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:36:19,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:36:19,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:36:19,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:36:19,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:36:19,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-07 03:36:19,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-06-07 03:36:19,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-07 03:36:19,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 03:36:19,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-07 03:36:19,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:36:19,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.