/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-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-14 00:03:20,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-14 00:03:20,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-14 00:03:20,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-14 00:03:20,350 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-Lockstep.epf [2021-06-14 00:03:20,394 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-14 00:03:20,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-14 00:03:20,394 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-14 00:03:20,395 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-14 00:03:20,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-14 00:03:20,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-14 00:03:20,397 INFO L138 SettingsManager]: * Use SBE=true [2021-06-14 00:03:20,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-14 00:03:20,398 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-14 00:03:20,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-14 00:03:20,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-14 00:03:20,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-14 00:03:20,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-14 00:03:20,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-14 00:03:20,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-14 00:03:20,399 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-14 00:03:20,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-14 00:03:20,400 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-14 00:03:20,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-14 00:03:20,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-14 00:03:20,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-14 00:03:20,401 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-14 00:03:20,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-14 00:03:20,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 00:03:20,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-14 00:03:20,401 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-14 00:03:20,401 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-14 00:03:20,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-14 00:03:20,402 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-14 00:03:20,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-14 00:03:20,402 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-14 00:03:20,402 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-14 00:03:20,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-14 00:03:20,403 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-14 00:03:20,403 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-14 00:03:20,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-14 00:03:20,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-14 00:03:20,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-14 00:03:20,741 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-14 00:03:20,744 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-14 00:03:20,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl [2021-06-14 00:03:20,758 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl' [2021-06-14 00:03:20,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-14 00:03:20,790 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-14 00:03:20,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-14 00:03:20,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-14 00:03:20,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-14 00:03:20,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 12:03:20" (1/1) ... [2021-06-14 00:03:20,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 12:03:20" (1/1) ... [2021-06-14 00:03:20,817 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-14 00:03:20,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-14 00:03:20,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-14 00:03:20,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-14 00:03:20,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 12:03:20" (1/1) ... [2021-06-14 00:03:20,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 12:03:20" (1/1) ... [2021-06-14 00:03:20,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 12:03:20" (1/1) ... [2021-06-14 00:03:20,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 12:03:20" (1/1) ... [2021-06-14 00:03:20,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 12:03:20" (1/1) ... [2021-06-14 00:03:20,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 12:03:20" (1/1) ... [2021-06-14 00:03:20,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 12:03:20" (1/1) ... [2021-06-14 00:03:20,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-14 00:03:20,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-14 00:03:20,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-14 00:03:20,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-14 00:03:20,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 12:03:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 00:03:20,916 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-14 00:03:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-14 00:03:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-14 00:03:20,917 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-14 00:03:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-14 00:03:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-14 00:03:20,917 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-14 00:03:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-14 00:03:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-14 00:03:20,919 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-14 00:03:20,919 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-14 00:03:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-14 00:03:20,919 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-14 00:03:20,919 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-14 00:03:20,920 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-14 00:03:20,920 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-14 00:03:21,176 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-14 00:03:21,177 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-14 00:03:21,178 INFO L202 PluginConnector]: Adding new model counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 12:03:21 BoogieIcfgContainer [2021-06-14 00:03:21,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-14 00:03:21,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-14 00:03:21,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-14 00:03:21,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-14 00:03:21,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 12:03:20" (1/2) ... [2021-06-14 00:03:21,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445cb4a9 and model type counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 12:03:21, skipping insertion in model container [2021-06-14 00:03:21,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 12:03:21" (2/2) ... [2021-06-14 00:03:21,184 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-add-4-semi-Q67.wvr.bpl [2021-06-14 00:03:21,205 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-14 00:03:21,205 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-14 00:03:21,206 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-14 00:03:21,206 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-14 00:03:21,291 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-14 00:03:21,326 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 [2021-06-14 00:03:21,395 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-14 00:03:21,395 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-14 00:03:21,395 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-14 00:03:21,395 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-14 00:03:21,395 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-14 00:03:21,395 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-14 00:03:21,395 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-14 00:03:21,396 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-14 00:03:21,641 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 00:03:21,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 00:03:21,646 INFO L82 PathProgramCache]: Analyzing trace with hash 720423968, now seen corresponding path program 1 times [2021-06-14 00:03:21,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 00:03:21,652 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202450377] [2021-06-14 00:03:21,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 00:03:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:03:21,963 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 24 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-14 00:03:21,968 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 00:03:21,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202450377] [2021-06-14 00:03:21,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202450377] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:03:21,970 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606803485] [2021-06-14 00:03:21,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:03:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:03:22,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-14 00:03:22,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 00:03:22,328 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 26 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-06-14 00:03:22,328 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606803485] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:03:22,328 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 00:03:22,328 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 14 [2021-06-14 00:03:22,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182473664] [2021-06-14 00:03:22,335 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-14 00:03:22,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 00:03:22,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-14 00:03:22,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-06-14 00:03:22,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:03:22,350 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 00:03:22,354 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) [2021-06-14 00:03:22,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:03:23,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-14 00:03:23,297 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-14 00:03:23,297 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 00:03:23,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 00:03:23,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1856047950, now seen corresponding path program 2 times [2021-06-14 00:03:23,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 00:03:23,298 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287088204] [2021-06-14 00:03:23,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 00:03:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:03:23,841 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 40 proven. 72 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-14 00:03:23,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 00:03:23,842 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287088204] [2021-06-14 00:03:23,842 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287088204] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:03:23,842 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367720790] [2021-06-14 00:03:23,842 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 [2021-06-14 00:03:23,908 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 00:03:23,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 00:03:23,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-14 00:03:23,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 00:03:24,208 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 92 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-14 00:03:24,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367720790] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:03:24,208 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 00:03:24,208 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 8] total 29 [2021-06-14 00:03:24,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383843933] [2021-06-14 00:03:24,210 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-14 00:03:24,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 00:03:24,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-14 00:03:24,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=742, Unknown=0, NotChecked=0, Total=870 [2021-06-14 00:03:24,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:03:24,212 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 00:03:24,213 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 3.3) internal successors, (99), 29 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 00:03:24,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-14 00:03:24,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:03:29,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-14 00:03:29,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2021-06-14 00:03:30,000 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:03:30,001 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 00:03:30,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 00:03:30,001 INFO L82 PathProgramCache]: Analyzing trace with hash 284569724, now seen corresponding path program 3 times [2021-06-14 00:03:30,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 00:03:30,002 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238174440] [2021-06-14 00:03:30,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 00:03:30,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:03:30,157 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 360 proven. 49 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2021-06-14 00:03:30,158 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 00:03:30,158 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238174440] [2021-06-14 00:03:30,158 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238174440] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:03:30,158 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029430245] [2021-06-14 00:03:30,158 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 [2021-06-14 00:03:30,243 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-06-14 00:03:30,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 00:03:30,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-14 00:03:30,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 00:03:30,540 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 220 proven. 12 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2021-06-14 00:03:30,541 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029430245] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:03:30,541 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 00:03:30,541 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 13 [2021-06-14 00:03:30,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655571736] [2021-06-14 00:03:30,543 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-14 00:03:30,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 00:03:30,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-14 00:03:30,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-06-14 00:03:30,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:03:30,545 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 00:03:30,547 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 00:03:30,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-14 00:03:30,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2021-06-14 00:03:30,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:03:34,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-14 00:03:34,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-06-14 00:03:34,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-14 00:03:34,293 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:03:34,293 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 00:03:34,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 00:03:34,295 INFO L82 PathProgramCache]: Analyzing trace with hash -967036698, now seen corresponding path program 4 times [2021-06-14 00:03:34,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 00:03:34,296 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531880302] [2021-06-14 00:03:34,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 00:03:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:03:35,061 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 91 proven. 433 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-14 00:03:35,067 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 00:03:35,067 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531880302] [2021-06-14 00:03:35,067 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531880302] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:03:35,067 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638090170] [2021-06-14 00:03:35,067 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 [2021-06-14 00:03:35,151 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 00:03:35,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 00:03:35,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-14 00:03:35,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 00:03:35,546 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 242 proven. 57 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2021-06-14 00:03:35,546 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638090170] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:03:35,546 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 00:03:35,546 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 7] total 41 [2021-06-14 00:03:35,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485697742] [2021-06-14 00:03:35,547 INFO L462 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-06-14 00:03:35,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 00:03:35,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-06-14 00:03:35,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1523, Unknown=0, NotChecked=0, Total=1722 [2021-06-14 00:03:35,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:03:35,548 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 00:03:35,548 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 3.2142857142857144) internal successors, (135), 41 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 00:03:35,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-14 00:03:35,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-06-14 00:03:35,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-06-14 00:03:35,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:03:40,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-14 00:03:40,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-06-14 00:03:40,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-14 00:03:40,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-06-14 00:03:40,536 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:03:40,537 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 00:03:40,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 00:03:40,537 INFO L82 PathProgramCache]: Analyzing trace with hash 695214762, now seen corresponding path program 5 times [2021-06-14 00:03:40,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 00:03:40,538 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447056722] [2021-06-14 00:03:40,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 00:03:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:03:40,777 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 65 proven. 198 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-06-14 00:03:40,777 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 00:03:40,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447056722] [2021-06-14 00:03:40,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447056722] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:03:40,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728800926] [2021-06-14 00:03:40,777 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 [2021-06-14 00:03:40,826 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-06-14 00:03:40,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 00:03:40,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 26 conjunts are in the unsatisfiable core [2021-06-14 00:03:40,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 00:03:41,154 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 159 proven. 23 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-06-14 00:03:41,154 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728800926] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:03:41,154 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 00:03:41,154 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9] total 27 [2021-06-14 00:03:41,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670969427] [2021-06-14 00:03:41,155 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-14 00:03:41,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 00:03:41,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-14 00:03:41,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=633, Unknown=0, NotChecked=0, Total=756 [2021-06-14 00:03:41,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:03:41,156 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 00:03:41,156 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 3.857142857142857) internal successors, (108), 27 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) [2021-06-14 00:03:41,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-14 00:03:41,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-06-14 00:03:41,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-06-14 00:03:41,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-06-14 00:03:41,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:03:49,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-14 00:03:49,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-06-14 00:03:49,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-14 00:03:49,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-06-14 00:03:49,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-06-14 00:03:50,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:03:50,197 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 00:03:50,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 00:03:50,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1207636770, now seen corresponding path program 6 times [2021-06-14 00:03:50,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 00:03:50,197 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491401717] [2021-06-14 00:03:50,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 00:03:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:03:50,291 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-06-14 00:03:50,292 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 00:03:50,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491401717] [2021-06-14 00:03:50,292 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491401717] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:03:50,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941621842] [2021-06-14 00:03:50,292 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:03:50,341 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-06-14 00:03:50,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 00:03:50,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 28 conjunts are in the unsatisfiable core [2021-06-14 00:03:50,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 00:03:50,566 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 37 proven. 77 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-06-14 00:03:50,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941621842] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:03:50,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 00:03:50,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-06-14 00:03:50,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546942900] [2021-06-14 00:03:50,567 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-14 00:03:50,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 00:03:50,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-14 00:03:50,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2021-06-14 00:03:50,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:03:50,568 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 00:03:50,568 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 6.857142857142857) internal successors, (96), 14 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 00:03:50,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-14 00:03:50,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-06-14 00:03:50,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-06-14 00:03:50,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-06-14 00:03:50,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-06-14 00:03:50,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:03:59,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-14 00:03:59,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-06-14 00:03:59,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-14 00:03:59,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-06-14 00:03:59,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-06-14 00:03:59,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 00:03:59,905 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:03:59,906 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 00:03:59,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 00:03:59,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1541209938, now seen corresponding path program 7 times [2021-06-14 00:03:59,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 00:03:59,907 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470159311] [2021-06-14 00:03:59,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 00:03:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:04:00,132 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 114 proven. 200 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-14 00:04:00,132 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 00:04:00,132 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470159311] [2021-06-14 00:04:00,133 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470159311] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:04:00,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762466686] [2021-06-14 00:04:00,134 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 [2021-06-14 00:04:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:04:00,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 20 conjunts are in the unsatisfiable core [2021-06-14 00:04:00,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 00:04:00,443 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 103 proven. 78 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-06-14 00:04:00,444 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762466686] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:04:00,444 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 00:04:00,444 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 7] total 23 [2021-06-14 00:04:00,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756303743] [2021-06-14 00:04:00,445 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-06-14 00:04:00,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 00:04:00,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-06-14 00:04:00,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=458, Unknown=0, NotChecked=0, Total=552 [2021-06-14 00:04:00,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:04:00,445 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 00:04:00,446 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 5.083333333333333) internal successors, (122), 23 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 00:04:00,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-14 00:04:00,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-06-14 00:04:00,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-06-14 00:04:00,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-06-14 00:04:00,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-06-14 00:04:00,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 00:04:00,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:04:00,843 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2021-06-14 00:04:07,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-14 00:04:07,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-06-14 00:04:07,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-14 00:04:07,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-06-14 00:04:07,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-06-14 00:04:07,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 00:04:07,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-06-14 00:04:07,913 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-06-14 00:04:07,914 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 00:04:07,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 00:04:07,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1730160854, now seen corresponding path program 8 times [2021-06-14 00:04:07,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 00:04:07,914 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611830352] [2021-06-14 00:04:07,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 00:04:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:04:08,241 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-06-14 00:04:08,241 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 00:04:08,241 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611830352] [2021-06-14 00:04:08,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611830352] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:04:08,241 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157749254] [2021-06-14 00:04:08,241 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 [2021-06-14 00:04:08,300 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 00:04:08,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 00:04:08,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 67 conjunts are in the unsatisfiable core [2021-06-14 00:04:08,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 00:04:08,444 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-06-14 00:04:08,444 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157749254] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:04:08,444 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 00:04:08,444 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 11 [2021-06-14 00:04:08,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673744491] [2021-06-14 00:04:08,447 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-14 00:04:08,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 00:04:08,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-14 00:04:08,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-06-14 00:04:08,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:04:08,448 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 00:04:08,448 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 00:04:08,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-14 00:04:08,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-06-14 00:04:08,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-06-14 00:04:08,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-06-14 00:04:08,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-06-14 00:04:08,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 00:04:08,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2021-06-14 00:04:08,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:04:12,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-14 00:04:12,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-06-14 00:04:12,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-14 00:04:12,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-06-14 00:04:12,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-06-14 00:04:12,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 00:04:12,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-06-14 00:04:12,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:04:12,955 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:04:12,956 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 00:04:12,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 00:04:12,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1551409206, now seen corresponding path program 9 times [2021-06-14 00:04:12,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 00:04:12,956 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307748402] [2021-06-14 00:04:12,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 00:04:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:04:13,219 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 171 proven. 186 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-14 00:04:13,219 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 00:04:13,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307748402] [2021-06-14 00:04:13,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307748402] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:04:13,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727561118] [2021-06-14 00:04:13,219 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 [2021-06-14 00:04:13,280 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2021-06-14 00:04:13,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 00:04:13,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 21 conjunts are in the unsatisfiable core [2021-06-14 00:04:13,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 00:04:13,629 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 188 proven. 169 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-14 00:04:13,629 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727561118] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:04:13,629 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 00:04:13,629 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18] total 32 [2021-06-14 00:04:13,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328407028] [2021-06-14 00:04:13,630 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-06-14 00:04:13,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 00:04:13,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-06-14 00:04:13,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=813, Unknown=0, NotChecked=0, Total=1056 [2021-06-14 00:04:13,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:04:13,631 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 00:04:13,631 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 5.03030303030303) internal successors, (166), 32 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 00:04:13,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-14 00:04:13,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-06-14 00:04:13,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-06-14 00:04:13,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-06-14 00:04:13,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-06-14 00:04:13,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 00:04:13,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2021-06-14 00:04:13,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:04:13,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:04:20,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-14 00:04:20,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-06-14 00:04:20,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-14 00:04:20,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-06-14 00:04:20,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-06-14 00:04:20,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 00:04:20,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-06-14 00:04:20,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:04:20,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-14 00:04:20,520 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:04:20,520 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 00:04:20,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 00:04:20,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1316066448, now seen corresponding path program 10 times [2021-06-14 00:04:20,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 00:04:20,521 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349578560] [2021-06-14 00:04:20,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 00:04:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:04:20,725 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 65 proven. 314 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-06-14 00:04:20,726 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 00:04:20,726 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349578560] [2021-06-14 00:04:20,726 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349578560] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:04:20,726 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208723790] [2021-06-14 00:04:20,726 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 [2021-06-14 00:04:20,801 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 00:04:20,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 00:04:20,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 42 conjunts are in the unsatisfiable core [2021-06-14 00:04:20,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 00:04:21,116 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 118 proven. 273 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-06-14 00:04:21,116 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208723790] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:04:21,116 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 00:04:21,116 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11] total 28 [2021-06-14 00:04:21,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133309260] [2021-06-14 00:04:21,117 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-14 00:04:21,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 00:04:21,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-14 00:04:21,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2021-06-14 00:04:21,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:04:21,118 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 00:04:21,118 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 5.785714285714286) internal successors, (162), 28 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 00:04:21,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-14 00:04:21,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-06-14 00:04:21,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-06-14 00:04:21,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-06-14 00:04:21,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-06-14 00:04:21,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 00:04:21,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2021-06-14 00:04:21,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:04:21,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-14 00:04:21,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:05:00,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-14 00:05:00,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-06-14 00:05:00,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-14 00:05:00,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-06-14 00:05:00,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-06-14 00:05:00,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 00:05:00,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-06-14 00:05:00,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:05:00,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-14 00:05:00,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 244 states. [2021-06-14 00:05:01,013 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-06-14 00:05:01,013 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 00:05:01,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 00:05:01,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1322499890, now seen corresponding path program 11 times [2021-06-14 00:05:01,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 00:05:01,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359077184] [2021-06-14 00:05:01,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 00:05:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:05:01,265 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 371 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-06-14 00:05:01,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 00:05:01,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359077184] [2021-06-14 00:05:01,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359077184] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:05:01,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045186145] [2021-06-14 00:05:01,265 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 [2021-06-14 00:05:01,505 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2021-06-14 00:05:01,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 00:05:01,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 44 conjunts are in the unsatisfiable core [2021-06-14 00:05:01,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 00:05:01,795 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 97 proven. 273 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-06-14 00:05:01,796 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045186145] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:05:01,796 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 00:05:01,796 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2021-06-14 00:05:01,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142427669] [2021-06-14 00:05:01,796 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-14 00:05:01,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 00:05:01,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-14 00:05:01,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2021-06-14 00:05:01,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:05:01,797 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 00:05:01,797 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 7.2727272727272725) internal successors, (160), 22 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 00:05:01,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-14 00:05:01,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-06-14 00:05:01,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-06-14 00:05:01,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-06-14 00:05:01,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-06-14 00:05:01,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 00:05:01,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2021-06-14 00:05:01,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:05:01,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-14 00:05:01,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 244 states. [2021-06-14 00:05:01,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.