/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 03:57:55,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 03:57:55,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 03:57:55,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 03:57:55,385 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.epf [2021-07-14 03:57:55,400 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 03:57:55,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 03:57:55,401 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 03:57:55,401 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 03:57:55,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 03:57:55,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 03:57:55,402 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 03:57:55,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 03:57:55,402 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 03:57:55,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 03:57:55,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 03:57:55,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 03:57:55,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 03:57:55,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 03:57:55,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 03:57:55,403 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 03:57:55,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 03:57:55,403 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 03:57:55,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 03:57:55,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 03:57:55,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 03:57:55,404 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 03:57:55,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 03:57:55,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 03:57:55,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 03:57:55,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 03:57:55,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 03:57:55,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 03:57:55,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 03:57:55,404 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 03:57:55,405 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 03:57:55,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 03:57:55,405 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-14 03:57:55,405 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 03:57:55,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 03:57:55,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 03:57:55,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 03:57:55,668 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 03:57:55,669 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 03:57:55,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc.wvr.bpl [2021-07-14 03:57:55,670 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc.wvr.bpl' [2021-07-14 03:57:55,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 03:57:55,688 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 03:57:55,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 03:57:55,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 03:57:55,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 03:57:55,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:57:55" (1/1) ... [2021-07-14 03:57:55,702 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:57:55" (1/1) ... [2021-07-14 03:57:55,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 03:57:55,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 03:57:55,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 03:57:55,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 03:57:55,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:57:55" (1/1) ... [2021-07-14 03:57:55,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:57:55" (1/1) ... [2021-07-14 03:57:55,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:57:55" (1/1) ... [2021-07-14 03:57:55,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:57:55" (1/1) ... [2021-07-14 03:57:55,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:57:55" (1/1) ... [2021-07-14 03:57:55,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:57:55" (1/1) ... [2021-07-14 03:57:55,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:57:55" (1/1) ... [2021-07-14 03:57:55,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 03:57:55,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 03:57:55,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 03:57:55,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 03:57:55,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:57:55" (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 [2021-07-14 03:57:55,792 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 03:57:55,792 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 03:57:55,792 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 03:57:55,792 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 03:57:55,792 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 03:57:55,792 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 03:57:55,792 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 03:57:55,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 03:57:55,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 03:57:55,793 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 03:57:55,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 03:57:55,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 03:57:55,793 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-07-14 03:57:55,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-07-14 03:57:55,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-07-14 03:57:55,794 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 03:57:55,943 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 03:57:55,944 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 03:57:55,945 INFO L202 PluginConnector]: Adding new model min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:57:55 BoogieIcfgContainer [2021-07-14 03:57:55,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 03:57:55,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 03:57:55,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 03:57:55,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 03:57:55,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:57:55" (1/2) ... [2021-07-14 03:57:55,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc5d74c and model type min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:57:55, skipping insertion in model container [2021-07-14 03:57:55,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:57:55" (2/2) ... [2021-07-14 03:57:55,950 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-inc.wvr.bpl [2021-07-14 03:57:55,954 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 03:57:55,954 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 03:57:55,954 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 03:57:55,955 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 03:57:55,987 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-14 03:57:56,002 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 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 [2021-07-14 03:57:56,104 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 03:57:56,104 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 03:57:56,104 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 03:57:56,105 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 03:57:56,105 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 03:57:56,105 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 03:57:56,105 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 03:57:56,105 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 03:57:56,250 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 03:57:56,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 03:57:56,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1438409888, now seen corresponding path program 1 times [2021-07-14 03:57:56,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 03:57:56,275 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3585589] [2021-07-14 03:57:56,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 03:57:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:57:56,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 03:57:56,636 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 03:57:56,637 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3585589] [2021-07-14 03:57:56,637 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3585589] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:57:56,637 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666693592] [2021-07-14 03:57:56,637 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 [2021-07-14 03:57:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:57:56,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-14 03:57:56,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 03:57:56,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 21 treesize of output 14 [2021-07-14 03:57:56,839 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 03:57:56,844 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 03:57:56,845 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 03:57:56,845 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:21 [2021-07-14 03:57:56,900 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 13 treesize of output 9 [2021-07-14 03:57:56,903 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 03:57:56,904 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 03:57:56,905 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 03:57:56,905 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:5 [2021-07-14 03:57:56,934 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 03:57:56,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666693592] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:57:56,934 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 03:57:56,935 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-07-14 03:57:56,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688378428] [2021-07-14 03:57:56,938 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 03:57:56,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 03:57:56,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 03:57:56,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-07-14 03:57:56,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:57:56,954 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 03:57:56,979 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 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) [2021-07-14 03:57:56,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:57:57,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:57:57,325 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-14 03:57:57,325 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 03:57:57,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 03:57:57,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1245597502, now seen corresponding path program 2 times [2021-07-14 03:57:57,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 03:57:57,326 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873680948] [2021-07-14 03:57:57,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 03:57:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:57:57,361 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 03:57:57,362 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 03:57:57,362 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873680948] [2021-07-14 03:57:57,362 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873680948] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:57:57,362 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909463510] [2021-07-14 03:57:57,362 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 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 [2021-07-14 03:57:57,410 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 03:57:57,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 03:57:57,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 03:57:57,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 03:57:57,459 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 03:57:57,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909463510] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:57:57,460 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 03:57:57,460 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-07-14 03:57:57,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523310964] [2021-07-14 03:57:57,461 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 03:57:57,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 03:57:57,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 03:57:57,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-07-14 03:57:57,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:57:57,461 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 03:57:57,461 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 03:57:57,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:57:57,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:57:57,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:57:57,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:57:57,766 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 03:57:57,766 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 03:57:57,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 03:57:57,767 INFO L82 PathProgramCache]: Analyzing trace with hash -2050303934, now seen corresponding path program 3 times [2021-07-14 03:57:57,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 03:57:57,768 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776305481] [2021-07-14 03:57:57,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 03:57:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:57:57,833 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-14 03:57:57,834 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 03:57:57,834 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776305481] [2021-07-14 03:57:57,834 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776305481] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:57:57,834 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774603498] [2021-07-14 03:57:57,834 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 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 [2021-07-14 03:57:57,888 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-14 03:57:57,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 03:57:57,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 03:57:57,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 03:57:57,964 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-14 03:57:57,964 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774603498] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:57:57,966 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 03:57:57,966 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-07-14 03:57:57,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790169604] [2021-07-14 03:57:57,967 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 03:57:57,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 03:57:57,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 03:57:57,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-07-14 03:57:57,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:57:57,970 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 03:57:57,970 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 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) [2021-07-14 03:57:57,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:57:57,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:57:57,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:57:58,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:57:58,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:57:58,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:57:58,289 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 03:57:58,289 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 03:57:58,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 03:57:58,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1238599746, now seen corresponding path program 4 times [2021-07-14 03:57:58,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 03:57:58,290 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56942904] [2021-07-14 03:57:58,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 03:57:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:57:58,345 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-14 03:57:58,345 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 03:57:58,345 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56942904] [2021-07-14 03:57:58,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56942904] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:57:58,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145847946] [2021-07-14 03:57:58,346 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 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 [2021-07-14 03:57:58,380 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 03:57:58,380 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 03:57:58,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 03:57:58,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 03:57:58,486 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-14 03:57:58,486 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145847946] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:57:58,486 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 03:57:58,486 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-07-14 03:57:58,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556291633] [2021-07-14 03:57:58,487 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 03:57:58,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 03:57:58,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 03:57:58,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-07-14 03:57:58,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:57:58,487 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 03:57:58,487 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 03:57:58,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:57:58,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:57:58,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:57:58,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:57:58,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:57:58,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:57:58,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:57:58,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 03:57:58,792 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 03:57:58,793 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 03:57:58,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 03:57:58,793 INFO L82 PathProgramCache]: Analyzing trace with hash 929828278, now seen corresponding path program 5 times [2021-07-14 03:57:58,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 03:57:58,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826252288] [2021-07-14 03:57:58,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 03:57:58,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:57:58,850 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-14 03:57:58,850 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 03:57:58,851 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826252288] [2021-07-14 03:57:58,851 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826252288] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:57:58,851 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148481245] [2021-07-14 03:57:58,851 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 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 [2021-07-14 03:57:58,891 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-07-14 03:57:58,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 03:57:58,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-14 03:57:58,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 03:57:59,020 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 20 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 03:57:59,020 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148481245] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:57:59,020 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 03:57:59,020 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2021-07-14 03:57:59,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776906607] [2021-07-14 03:57:59,020 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-14 03:57:59,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 03:57:59,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-14 03:57:59,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-07-14 03:57:59,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:57:59,021 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 03:57:59,021 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.866666666666666) internal successors, (73), 14 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) [2021-07-14 03:57:59,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:57:59,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:57:59,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:57:59,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 03:57:59,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:57:59,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:57:59,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:57:59,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:57:59,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 03:57:59,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 03:57:59,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 03:57:59,761 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 03:57:59,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 03:57:59,761 INFO L82 PathProgramCache]: Analyzing trace with hash -245408574, now seen corresponding path program 6 times [2021-07-14 03:57:59,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 03:57:59,761 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442431631] [2021-07-14 03:57:59,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 03:57:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:57:59,841 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 50 proven. 44 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-14 03:57:59,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 03:57:59,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442431631] [2021-07-14 03:57:59,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442431631] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:57:59,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290851895] [2021-07-14 03:57:59,841 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 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 [2021-07-14 03:57:59,881 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-07-14 03:57:59,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 03:57:59,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-14 03:57:59,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 03:58:00,024 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 45 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-07-14 03:58:00,024 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290851895] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:58:00,025 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 03:58:00,025 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 18 [2021-07-14 03:58:00,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753232762] [2021-07-14 03:58:00,025 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-14 03:58:00,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 03:58:00,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-14 03:58:00,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2021-07-14 03:58:00,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:58:00,026 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 03:58:00,026 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.684210526315789) internal successors, (89), 18 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) [2021-07-14 03:58:00,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:58:00,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:00,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:58:00,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 03:58:00,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 03:58:00,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:58:00,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:58:00,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:00,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:58:00,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 03:58:00,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 03:58:00,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-14 03:58:00,668 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 03:58:00,668 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 03:58:00,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 03:58:00,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1181284662, now seen corresponding path program 7 times [2021-07-14 03:58:00,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 03:58:00,671 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703950656] [2021-07-14 03:58:00,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 03:58:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:58:00,779 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 34 proven. 41 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-14 03:58:00,779 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 03:58:00,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703950656] [2021-07-14 03:58:00,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703950656] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:58:00,782 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515973771] [2021-07-14 03:58:00,782 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 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 [2021-07-14 03:58:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:58:00,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 03:58:00,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 03:58:00,895 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 41 proven. 34 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-14 03:58:00,895 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515973771] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:58:00,895 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 03:58:00,895 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 10 [2021-07-14 03:58:00,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685939107] [2021-07-14 03:58:00,896 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 03:58:00,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 03:58:00,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 03:58:00,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-07-14 03:58:00,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:58:00,896 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 03:58:00,896 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 10 states have internal predecessors, (58), 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) [2021-07-14 03:58:00,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:58:00,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:00,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:58:00,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 03:58:00,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 03:58:00,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-14 03:58:00,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:58:01,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:58:01,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:01,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:58:01,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 03:58:01,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 03:58:01,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 03:58:01,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 03:58:01,283 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-07-14 03:58:01,283 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 03:58:01,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 03:58:01,283 INFO L82 PathProgramCache]: Analyzing trace with hash -2012610758, now seen corresponding path program 8 times [2021-07-14 03:58:01,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 03:58:01,283 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306583290] [2021-07-14 03:58:01,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 03:58:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:58:01,409 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 72 proven. 101 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 03:58:01,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 03:58:01,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306583290] [2021-07-14 03:58:01,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306583290] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:58:01,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040658012] [2021-07-14 03:58:01,409 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 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 [2021-07-14 03:58:01,471 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 03:58:01,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 03:58:01,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-14 03:58:01,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 03:58:01,637 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 110 proven. 25 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-07-14 03:58:01,638 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040658012] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:58:01,638 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 03:58:01,638 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10] total 29 [2021-07-14 03:58:01,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109707184] [2021-07-14 03:58:01,638 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-14 03:58:01,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 03:58:01,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-14 03:58:01,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2021-07-14 03:58:01,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:58:01,639 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 03:58:01,639 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 3.6333333333333333) internal successors, (109), 29 states have internal predecessors, (109), 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) [2021-07-14 03:58:01,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:58:01,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:01,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:58:01,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 03:58:01,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 03:58:01,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 03:58:01,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 03:58:01,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:58:01,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:58:01,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:01,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:58:01,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 03:58:01,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 03:58:01,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 03:58:01,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 03:58:01,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:02,000 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 03:58:02,000 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 03:58:02,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 03:58:02,001 INFO L82 PathProgramCache]: Analyzing trace with hash 196016924, now seen corresponding path program 9 times [2021-07-14 03:58:02,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 03:58:02,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030455371] [2021-07-14 03:58:02,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 03:58:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:58:02,075 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 39 proven. 102 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-07-14 03:58:02,075 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 03:58:02,075 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030455371] [2021-07-14 03:58:02,075 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030455371] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:58:02,075 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841107321] [2021-07-14 03:58:02,075 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 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 [2021-07-14 03:58:02,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-07-14 03:58:02,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 03:58:02,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 36 conjunts are in the unsatisfiable core [2021-07-14 03:58:02,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 03:58:02,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:02,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:02,292 INFO L354 Elim1Store]: treesize reduction 32, result has 59.5 percent of original size [2021-07-14 03:58:02,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 25 treesize of output 60 [2021-07-14 03:58:02,301 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 03:58:02,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:02,338 INFO L354 Elim1Store]: treesize reduction 32, result has 59.5 percent of original size [2021-07-14 03:58:02,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 60 [2021-07-14 03:58:02,351 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-07-14 03:58:02,459 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2021-07-14 03:58:02,460 INFO L628 ElimStorePlain]: treesize reduction 116, result has 48.7 percent of original size [2021-07-14 03:58:02,472 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-14 03:58:02,472 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:71, output treesize:85 [2021-07-14 03:58:02,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:02,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:02,568 INFO L354 Elim1Store]: treesize reduction 32, result has 59.5 percent of original size [2021-07-14 03:58:02,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 60 [2021-07-14 03:58:02,582 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-14 03:58:02,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:02,617 INFO L354 Elim1Store]: treesize reduction 32, result has 59.5 percent of original size [2021-07-14 03:58:02,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 25 treesize of output 60 [2021-07-14 03:58:02,633 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 03:58:02,705 INFO L628 ElimStorePlain]: treesize reduction 77, result has 62.3 percent of original size [2021-07-14 03:58:02,720 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2021-07-14 03:58:02,720 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:71, output treesize:127 [2021-07-14 03:58:03,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:03,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:03,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:03,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:03,137 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-14 03:58:03,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 80 [2021-07-14 03:58:03,158 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-14 03:58:03,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:03,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:03,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:03,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:03,236 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-14 03:58:03,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 80 [2021-07-14 03:58:03,255 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-07-14 03:58:03,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:03,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:03,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:03,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:03,340 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-14 03:58:03,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 80 [2021-07-14 03:58:03,355 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 03:58:03,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:03,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:03,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:03,436 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-14 03:58:03,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 80 [2021-07-14 03:58:03,444 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 03:58:04,325 WARN L205 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 152 [2021-07-14 03:58:04,326 INFO L628 ElimStorePlain]: treesize reduction 345, result has 60.2 percent of original size [2021-07-14 03:58:04,383 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2021-07-14 03:58:04,383 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:187, output treesize:431 [2021-07-14 03:58:04,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:04,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:04,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:04,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:04,660 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-14 03:58:04,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 80 [2021-07-14 03:58:04,670 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 03:58:04,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:04,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:04,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:04,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:04,738 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-14 03:58:04,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 80 [2021-07-14 03:58:04,748 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 03:58:04,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:04,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:04,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:04,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:04,828 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-14 03:58:04,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 80 [2021-07-14 03:58:04,840 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2021-07-14 03:58:04,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:04,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:04,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:04,925 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-14 03:58:04,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 80 [2021-07-14 03:58:04,942 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2021-07-14 03:58:05,357 WARN L205 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 148 [2021-07-14 03:58:05,358 INFO L628 ElimStorePlain]: treesize reduction 207, result has 71.1 percent of original size [2021-07-14 03:58:05,408 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2021-07-14 03:58:05,408 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:187, output treesize:377 [2021-07-14 03:58:05,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:05,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:05,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:05,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:05,608 INFO L354 Elim1Store]: treesize reduction 50, result has 60.3 percent of original size [2021-07-14 03:58:05,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 40 treesize of output 94 [2021-07-14 03:58:05,619 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-14 03:58:05,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:05,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:05,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:05,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:05,693 INFO L354 Elim1Store]: treesize reduction 50, result has 60.3 percent of original size [2021-07-14 03:58:05,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 94 [2021-07-14 03:58:05,726 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-07-14 03:58:05,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:05,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:05,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:05,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:05,810 INFO L354 Elim1Store]: treesize reduction 50, result has 60.3 percent of original size [2021-07-14 03:58:05,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 94 [2021-07-14 03:58:05,819 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 03:58:05,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:05,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:05,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:05,902 INFO L354 Elim1Store]: treesize reduction 50, result has 60.3 percent of original size [2021-07-14 03:58:05,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 94 [2021-07-14 03:58:05,912 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 03:58:06,493 WARN L205 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 146 [2021-07-14 03:58:06,494 INFO L628 ElimStorePlain]: treesize reduction 240, result has 67.2 percent of original size [2021-07-14 03:58:06,565 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2021-07-14 03:58:06,565 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:183, output treesize:492 [2021-07-14 03:58:07,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:07,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:07,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:07,839 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 03:58:07,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 51 [2021-07-14 03:58:07,859 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-07-14 03:58:07,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:07,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:07,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:07,884 INFO L354 Elim1Store]: treesize reduction 34, result has 8.1 percent of original size [2021-07-14 03:58:07,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 22 [2021-07-14 03:58:07,886 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 03:58:07,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:07,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:07,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:07,921 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 03:58:07,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 49 [2021-07-14 03:58:07,935 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 3 xjuncts. [2021-07-14 03:58:07,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:07,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:07,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:07,967 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 03:58:07,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 47 [2021-07-14 03:58:07,977 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2021-07-14 03:58:07,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:07,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:07,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,011 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 03:58:08,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 49 [2021-07-14 03:58:08,035 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 3 xjuncts. [2021-07-14 03:58:08,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,070 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 03:58:08,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 47 [2021-07-14 03:58:08,088 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2021-07-14 03:58:08,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,122 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 03:58:08,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 47 [2021-07-14 03:58:08,142 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2021-07-14 03:58:08,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,183 INFO L354 Elim1Store]: treesize reduction 23, result has 34.3 percent of original size [2021-07-14 03:58:08,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 26 [2021-07-14 03:58:08,185 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-14 03:58:08,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,212 INFO L354 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2021-07-14 03:58:08,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 1 [2021-07-14 03:58:08,213 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-14 03:58:08,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,244 INFO L354 Elim1Store]: treesize reduction 23, result has 34.3 percent of original size [2021-07-14 03:58:08,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 26 [2021-07-14 03:58:08,245 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-14 03:58:08,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,278 INFO L354 Elim1Store]: treesize reduction 25, result has 32.4 percent of original size [2021-07-14 03:58:08,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 26 [2021-07-14 03:58:08,280 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-07-14 03:58:08,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,311 INFO L354 Elim1Store]: treesize reduction 32, result has 8.6 percent of original size [2021-07-14 03:58:08,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 20 [2021-07-14 03:58:08,313 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-07-14 03:58:08,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,340 INFO L354 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2021-07-14 03:58:08,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 1 [2021-07-14 03:58:08,341 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-07-14 03:58:08,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,363 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-07-14 03:58:08,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 1 [2021-07-14 03:58:08,363 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-07-14 03:58:08,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,395 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 03:58:08,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 47 [2021-07-14 03:58:08,405 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2021-07-14 03:58:08,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 03:58:08,434 INFO L354 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2021-07-14 03:58:08,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 1 [2021-07-14 03:58:08,435 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-07-14 03:58:08,775 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 122 [2021-07-14 03:58:08,776 INFO L628 ElimStorePlain]: treesize reduction 100, result has 77.6 percent of original size [2021-07-14 03:58:08,834 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 33 xjuncts. [2021-07-14 03:58:08,834 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 5 variables, input treesize:739, output treesize:1133 [2021-07-14 03:58:09,146 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 23 proven. 105 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-07-14 03:58:09,147 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841107321] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:58:09,147 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 03:58:09,147 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16] total 27 [2021-07-14 03:58:09,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554636069] [2021-07-14 03:58:09,147 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-07-14 03:58:09,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 03:58:09,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-07-14 03:58:09,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2021-07-14 03:58:09,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:58:09,148 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 03:58:09,148 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7037037037037037) internal successors, (100), 27 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 03:58:09,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:58:09,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:09,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:58:09,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 03:58:09,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 03:58:09,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 03:58:09,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 03:58:09,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:09,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:58:10,457 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2021-07-14 03:58:10,882 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-07-14 03:58:11,327 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2021-07-14 03:58:11,877 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2021-07-14 03:58:12,248 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-07-14 03:58:12,609 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-07-14 03:58:12,753 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-07-14 03:58:13,225 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-07-14 03:58:13,602 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-07-14 03:58:13,824 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-07-14 03:58:13,992 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2021-07-14 03:58:14,399 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2021-07-14 03:58:14,726 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-07-14 03:58:15,191 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2021-07-14 03:58:15,587 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2021-07-14 03:58:15,916 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-07-14 03:58:16,570 WARN L205 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 194 [2021-07-14 03:58:17,085 WARN L205 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 190 [2021-07-14 03:58:17,384 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-07-14 03:58:17,984 WARN L205 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2021-07-14 03:58:21,020 WARN L205 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 200 DAG size of output: 192 [2021-07-14 03:58:21,629 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 178 [2021-07-14 03:58:21,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:58:21,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:21,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:58:21,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 03:58:21,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 03:58:21,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 03:58:21,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 03:58:21,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:21,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-14 03:58:21,974 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 03:58:21,974 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 03:58:21,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 03:58:21,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1295884316, now seen corresponding path program 10 times [2021-07-14 03:58:21,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 03:58:21,975 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546437672] [2021-07-14 03:58:21,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 03:58:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:58:22,097 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 54 proven. 119 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-07-14 03:58:22,097 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 03:58:22,098 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546437672] [2021-07-14 03:58:22,098 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546437672] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:58:22,098 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824949955] [2021-07-14 03:58:22,098 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 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 [2021-07-14 03:58:22,156 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 03:58:22,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 03:58:22,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 03:58:22,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 03:58:22,349 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 126 proven. 62 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-07-14 03:58:22,349 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824949955] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:58:22,349 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 03:58:22,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 23 [2021-07-14 03:58:22,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141531414] [2021-07-14 03:58:22,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-14 03:58:22,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 03:58:22,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-14 03:58:22,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2021-07-14 03:58:22,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:58:22,351 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 03:58:22,351 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.5) internal successors, (108), 23 states have internal predecessors, (108), 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) [2021-07-14 03:58:22,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:58:22,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:22,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:58:22,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 03:58:22,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 03:58:22,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 03:58:22,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 03:58:22,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:22,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-14 03:58:22,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:58:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:58:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:58:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 03:58:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 03:58:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 03:58:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 03:58:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-14 03:58:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 03:58:22,908 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable442 [2021-07-14 03:58:22,909 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 03:58:22,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 03:58:22,909 INFO L82 PathProgramCache]: Analyzing trace with hash -180704642, now seen corresponding path program 11 times [2021-07-14 03:58:22,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 03:58:22,909 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45336614] [2021-07-14 03:58:22,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 03:58:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:58:23,026 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 106 proven. 109 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-07-14 03:58:23,026 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 03:58:23,026 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45336614] [2021-07-14 03:58:23,026 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45336614] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:58:23,026 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901990322] [2021-07-14 03:58:23,026 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 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 [2021-07-14 03:58:23,095 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-07-14 03:58:23,095 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 03:58:23,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-14 03:58:23,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 03:58:23,296 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 70 proven. 98 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-07-14 03:58:23,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901990322] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:58:23,296 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 03:58:23,296 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 23 [2021-07-14 03:58:23,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815537505] [2021-07-14 03:58:23,297 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-14 03:58:23,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 03:58:23,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-14 03:58:23,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2021-07-14 03:58:23,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:58:23,298 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 03:58:23,298 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.666666666666667) internal successors, (112), 23 states have internal predecessors, (112), 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) [2021-07-14 03:58:23,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:58:23,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:23,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:58:23,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 03:58:23,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 03:58:23,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 03:58:23,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 03:58:23,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:23,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-14 03:58:23,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 03:58:23,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:58:24,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:58:24,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:24,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:58:24,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 03:58:24,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 03:58:24,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 03:58:24,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 03:58:24,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:24,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-14 03:58:24,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 03:58:24,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-07-14 03:58:24,249 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable443 [2021-07-14 03:58:24,249 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 03:58:24,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 03:58:24,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1608799460, now seen corresponding path program 12 times [2021-07-14 03:58:24,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 03:58:24,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557816530] [2021-07-14 03:58:24,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 03:58:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:58:24,383 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 82 proven. 159 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-07-14 03:58:24,384 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 03:58:24,384 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557816530] [2021-07-14 03:58:24,384 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557816530] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:58:24,384 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095964164] [2021-07-14 03:58:24,384 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 03:58:24,443 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2021-07-14 03:58:24,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 03:58:24,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-14 03:58:24,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 03:58:24,706 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 120 proven. 134 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-07-14 03:58:24,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095964164] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 03:58:24,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 03:58:24,707 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14] total 31 [2021-07-14 03:58:24,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636543795] [2021-07-14 03:58:24,707 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-07-14 03:58:24,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 03:58:24,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-07-14 03:58:24,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=825, Unknown=0, NotChecked=0, Total=992 [2021-07-14 03:58:24,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:58:24,708 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 03:58:24,708 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 3.90625) internal successors, (125), 31 states have internal predecessors, (125), 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) [2021-07-14 03:58:24,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:58:24,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:24,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:58:24,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 03:58:24,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 03:58:24,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 03:58:24,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 03:58:24,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:24,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-14 03:58:24,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 03:58:24,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-07-14 03:58:24,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 03:58:25,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 03:58:25,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:25,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 03:58:25,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 03:58:25,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 03:58:25,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 03:58:25,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 03:58:25,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 03:58:25,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-14 03:58:25,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 03:58:25,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-07-14 03:58:25,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 03:58:25,356 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable444 [2021-07-14 03:58:25,357 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 03:58:25,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 03:58:25,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1772172158, now seen corresponding path program 13 times [2021-07-14 03:58:25,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 03:58:25,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673614324] [2021-07-14 03:58:25,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 03:58:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 03:58:30,319 WARN L205 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 108 DAG size of output: 24 [2021-07-14 04:09:16,225 WARN L205 SmtUtils]: Spent 10.76 m on a formula simplification. DAG size of input: 139 DAG size of output: 12 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown