/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-19 21:38:15,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 21:38:15,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 21:38:15,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-19 21:38:15,954 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-Sleep-NoLbe-Delay.epf [2021-02-19 21:38:15,987 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 21:38:15,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 21:38:15,988 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-19 21:38:15,988 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-19 21:38:15,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 21:38:15,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 21:38:15,989 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 21:38:15,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 21:38:15,989 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 21:38:15,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 21:38:15,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 21:38:15,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 21:38:15,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 21:38:15,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 21:38:15,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 21:38:15,990 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 21:38:15,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 21:38:15,990 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 21:38:15,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 21:38:15,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 21:38:15,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 21:38:15,990 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-19 21:38:15,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 21:38:15,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 21:38:15,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 21:38:15,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 21:38:15,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 21:38:15,991 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 21:38:15,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 21:38:15,991 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-19 21:38:15,992 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-19 21:38:15,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 21:38:15,992 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-02-19 21:38:15,992 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 21:38:16,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 21:38:16,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 21:38:16,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 21:38:16,317 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-19 21:38:16,318 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-19 21:38:16,319 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl [2021-02-19 21:38:16,319 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl' [2021-02-19 21:38:16,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 21:38:16,350 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 21:38:16,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-19 21:38:16,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-19 21:38:16,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-19 21:38:16,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:38:16" (1/1) ... [2021-02-19 21:38:16,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:38:16" (1/1) ... [2021-02-19 21:38:16,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-19 21:38:16,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 21:38:16,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 21:38:16,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 21:38:16,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:38:16" (1/1) ... [2021-02-19 21:38:16,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:38:16" (1/1) ... [2021-02-19 21:38:16,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:38:16" (1/1) ... [2021-02-19 21:38:16,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:38:16" (1/1) ... [2021-02-19 21:38:16,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:38:16" (1/1) ... [2021-02-19 21:38:16,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:38:16" (1/1) ... [2021-02-19 21:38:16,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:38:16" (1/1) ... [2021-02-19 21:38:16,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 21:38:16,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 21:38:16,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 21:38:16,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 21:38:16,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:38:16" (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 [2021-02-19 21:38:16,443 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-19 21:38:16,443 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-19 21:38:16,443 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-19 21:38:16,443 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-19 21:38:16,443 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-19 21:38:16,443 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-19 21:38:16,443 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-19 21:38:16,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 21:38:16,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 21:38:16,445 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-19 21:38:16,573 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 21:38:16,574 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-19 21:38:16,575 INFO L202 PluginConnector]: Adding new model nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 09:38:16 BoogieIcfgContainer [2021-02-19 21:38:16,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 21:38:16,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 21:38:16,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 21:38:16,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 21:38:16,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:38:16" (1/2) ... [2021-02-19 21:38:16,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8cc77c and model type nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 09:38:16, skipping insertion in model container [2021-02-19 21:38:16,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 09:38:16" (2/2) ... [2021-02-19 21:38:16,582 INFO L111 eAbstractionObserver]: Analyzing ICFG nonblocking-cntr-alt.wvr.bpl [2021-02-19 21:38:16,587 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-19 21:38:16,587 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 21:38:16,590 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 21:38:16,591 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-19 21:38:16,639 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-02-19 21:38:16,666 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-02-19 21:38:16,764 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 21:38:16,764 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 21:38:16,764 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 21:38:16,764 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 21:38:16,764 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 21:38:16,765 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 21:38:16,765 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 21:38:16,765 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 21:38:16,881 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:38:16,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:38:16,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1355572749, now seen corresponding path program 1 times [2021-02-19 21:38:16,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:38:16,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312979481] [2021-02-19 21:38:16,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:38:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:38:17,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:38:17,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312979481] [2021-02-19 21:38:17,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462802803] [2021-02-19 21:38:17,252 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 [2021-02-19 21:38:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:38:17,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 15 conjunts are in the unsatisfiable core [2021-02-19 21:38:17,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:38:17,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:38:17,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:38:17,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-02-19 21:38:17,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508701792] [2021-02-19 21:38:17,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-02-19 21:38:17,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:38:17,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-02-19 21:38:17,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2021-02-19 21:38:17,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:38:17,639 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:38:17,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:38:17,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:38:17,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:38:18,026 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-02-19 21:38:18,026 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:38:18,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:38:18,027 INFO L82 PathProgramCache]: Analyzing trace with hash -159526841, now seen corresponding path program 2 times [2021-02-19 21:38:18,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:38:18,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92994696] [2021-02-19 21:38:18,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:38:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:38:18,293 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:38:18,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92994696] [2021-02-19 21:38:18,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802684887] [2021-02-19 21:38:18,294 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 [2021-02-19 21:38:18,323 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 21:38:18,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:38:18,324 WARN L261 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 28 conjunts are in the unsatisfiable core [2021-02-19 21:38:18,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:38:18,753 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:38:18,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:38:18,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-02-19 21:38:18,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424842282] [2021-02-19 21:38:18,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-19 21:38:18,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:38:18,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-19 21:38:18,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2021-02-19 21:38:18,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:38:18,757 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:38:18,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.92) internal successors, (48), 24 states have internal predecessors, (48), 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) [2021-02-19 21:38:18,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:38:18,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:38:19,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:38:19,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:38:19,417 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:38:19,418 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:38:19,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:38:19,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1467933503, now seen corresponding path program 3 times [2021-02-19 21:38:19,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:38:19,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006933897] [2021-02-19 21:38:19,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:38:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:38:19,741 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 20 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:38:19,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006933897] [2021-02-19 21:38:19,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713380574] [2021-02-19 21:38:19,741 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) [2021-02-19 21:38:19,776 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-02-19 21:38:19,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:38:19,778 WARN L261 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 41 conjunts are in the unsatisfiable core [2021-02-19 21:38:19,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:38:20,325 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:38:20,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:38:20,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-02-19 21:38:20,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484357886] [2021-02-19 21:38:20,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-02-19 21:38:20,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:38:20,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-02-19 21:38:20,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2021-02-19 21:38:20,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:38:20,328 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:38:20,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.935483870967742) internal successors, (60), 30 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:38:20,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:38:20,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:38:20,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:38:21,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:38:21,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:38:21,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 21:38:21,565 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:38:21,565 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:38:21,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:38:21,566 INFO L82 PathProgramCache]: Analyzing trace with hash -37464857, now seen corresponding path program 4 times [2021-02-19 21:38:21,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:38:21,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152316464] [2021-02-19 21:38:21,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:38:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:38:22,348 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:38:22,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152316464] [2021-02-19 21:38:22,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545702039] [2021-02-19 21:38:22,349 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 [2021-02-19 21:38:22,392 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 21:38:22,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:38:22,396 WARN L261 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 93 conjunts are in the unsatisfiable core [2021-02-19 21:38:22,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:38:23,743 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:38:23,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:38:23,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 29] total 51 [2021-02-19 21:38:23,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030635180] [2021-02-19 21:38:23,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-02-19 21:38:23,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:38:23,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-02-19 21:38:23,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=2439, Unknown=0, NotChecked=0, Total=2652 [2021-02-19 21:38:23,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:38:23,754 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:38:23,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 52 states, 52 states have (on average 2.1346153846153846) internal successors, (111), 51 states have internal predecessors, (111), 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) [2021-02-19 21:38:23,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:38:23,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:38:23,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-02-19 21:38:23,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:38:25,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:38:25,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:38:25,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 21:38:25,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-19 21:38:25,775 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:38:25,775 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:38:25,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:38:25,776 INFO L82 PathProgramCache]: Analyzing trace with hash -84745319, now seen corresponding path program 5 times [2021-02-19 21:38:25,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:38:25,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809215679] [2021-02-19 21:38:25,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:38:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:38:26,620 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 169 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:38:26,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809215679] [2021-02-19 21:38:26,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135200733] [2021-02-19 21:38:26,621 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 [2021-02-19 21:38:26,691 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2021-02-19 21:38:26,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:38:26,693 WARN L261 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 121 conjunts are in the unsatisfiable core [2021-02-19 21:38:26,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:38:28,274 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 0 proven. 424 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:38:28,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:38:28,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 36] total 67 [2021-02-19 21:38:28,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238175365] [2021-02-19 21:38:28,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 68 states [2021-02-19 21:38:28,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:38:28,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2021-02-19 21:38:28,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=570, Invalid=3986, Unknown=0, NotChecked=0, Total=4556 [2021-02-19 21:38:28,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:38:28,278 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:38:28,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 68 states, 68 states have (on average 2.0588235294117645) internal successors, (140), 67 states have internal predecessors, (140), 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) [2021-02-19 21:38:28,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:38:28,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:38:28,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-02-19 21:38:28,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-02-19 21:38:28,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:38:31,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:38:31,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:38:31,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 21:38:31,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-19 21:38:31,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-02-19 21:38:31,554 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:38:31,554 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:38:31,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:38:31,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1843655335, now seen corresponding path program 6 times [2021-02-19 21:38:31,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:38:31,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903058097] [2021-02-19 21:38:31,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:38:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:38:33,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1405 backedges. 0 proven. 1405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:38:33,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903058097] [2021-02-19 21:38:33,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225512967] [2021-02-19 21:38:33,678 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 [2021-02-19 21:38:33,805 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 40 check-sat command(s) [2021-02-19 21:38:33,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:38:33,816 WARN L261 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 221 conjunts are in the unsatisfiable core [2021-02-19 21:38:33,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:38:38,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1405 backedges. 0 proven. 1405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:38:38,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:38:38,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 61] total 107 [2021-02-19 21:38:38,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192062118] [2021-02-19 21:38:38,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 108 states [2021-02-19 21:38:38,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:38:38,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2021-02-19 21:38:38,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=733, Invalid=10823, Unknown=0, NotChecked=0, Total=11556 [2021-02-19 21:38:38,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:38:38,240 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:38:38,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 108 states, 108 states have (on average 2.212962962962963) internal successors, (239), 107 states have internal predecessors, (239), 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) [2021-02-19 21:38:38,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:38:38,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:38:38,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-02-19 21:38:38,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-02-19 21:38:38,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-02-19 21:38:38,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:38:40,174 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 108 [2021-02-19 21:38:40,432 WARN L202 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 106 [2021-02-19 21:38:40,726 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-02-19 21:38:40,943 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 103 [2021-02-19 21:38:41,161 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 101 [2021-02-19 21:38:41,398 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2021-02-19 21:38:41,601 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-02-19 21:38:41,806 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 95 [2021-02-19 21:38:42,027 WARN L202 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 100 [2021-02-19 21:38:42,240 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-02-19 21:38:42,513 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 88 [2021-02-19 21:38:42,737 WARN L202 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2021-02-19 21:38:42,910 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-02-19 21:38:43,141 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-02-19 21:38:43,342 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2021-02-19 21:38:43,499 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-02-19 21:38:43,711 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2021-02-19 21:38:43,887 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2021-02-19 21:38:44,221 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-02-19 21:38:44,402 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2021-02-19 21:38:44,713 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-02-19 21:38:45,129 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-02-19 21:38:46,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:38:46,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:38:46,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 21:38:46,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-19 21:38:46,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-02-19 21:38:46,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-02-19 21:38:46,850 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:38:46,850 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:38:46,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:38:46,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1006417591, now seen corresponding path program 7 times [2021-02-19 21:38:46,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:38:46,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34571958] [2021-02-19 21:38:46,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:38:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:38:49,164 INFO L134 CoverageAnalysis]: Checked inductivity of 2440 backedges. 841 proven. 1599 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:38:49,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34571958] [2021-02-19 21:38:49,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268224825] [2021-02-19 21:38:49,164 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 [2021-02-19 21:38:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:38:49,234 WARN L261 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 281 conjunts are in the unsatisfiable core [2021-02-19 21:38:49,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:38:55,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2440 backedges. 0 proven. 2440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:38:55,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:38:55,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 76] total 139 [2021-02-19 21:38:55,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997329809] [2021-02-19 21:38:55,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 140 states [2021-02-19 21:38:55,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:38:55,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 140 interpolants. [2021-02-19 21:38:55,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2350, Invalid=17110, Unknown=0, NotChecked=0, Total=19460 [2021-02-19 21:38:55,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:38:55,071 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:38:55,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 140 states, 140 states have (on average 2.142857142857143) internal successors, (300), 139 states have internal predecessors, (300), 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) [2021-02-19 21:38:55,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:38:55,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:38:55,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-02-19 21:38:55,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-02-19 21:38:55,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-02-19 21:38:55,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-02-19 21:38:55,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:38:58,347 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 107 [2021-02-19 21:38:58,714 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 98 [2021-02-19 21:38:59,051 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 91 [2021-02-19 21:38:59,337 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 84 [2021-02-19 21:38:59,618 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 77 [2021-02-19 21:38:59,891 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-02-19 21:39:00,196 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2021-02-19 21:39:06,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:39:06,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:39:06,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 21:39:06,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-19 21:39:06,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-02-19 21:39:06,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-02-19 21:39:06,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2021-02-19 21:39:06,490 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-02-19 21:39:06,491 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:39:06,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:39:06,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1399664167, now seen corresponding path program 8 times [2021-02-19 21:39:06,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:39:06,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66451140] [2021-02-19 21:39:06,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:39:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:39:13,500 INFO L134 CoverageAnalysis]: Checked inductivity of 6845 backedges. 0 proven. 6845 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:39:13,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66451140] [2021-02-19 21:39:13,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613176249] [2021-02-19 21:39:13,500 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 [2021-02-19 21:39:13,625 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 21:39:13,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:39:13,631 WARN L261 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 477 conjunts are in the unsatisfiable core [2021-02-19 21:39:13,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:39:30,911 INFO L134 CoverageAnalysis]: Checked inductivity of 6845 backedges. 0 proven. 6845 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:39:30,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:39:30,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 125] total 219 [2021-02-19 21:39:30,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358346212] [2021-02-19 21:39:30,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 220 states [2021-02-19 21:39:30,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:39:30,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 220 interpolants. [2021-02-19 21:39:30,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2733, Invalid=45447, Unknown=0, NotChecked=0, Total=48180 [2021-02-19 21:39:30,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:39:30,919 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:39:30,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 220 states, 220 states have (on average 2.25) internal successors, (495), 219 states have internal predecessors, (495), 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) [2021-02-19 21:39:30,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:39:30,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:39:30,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-02-19 21:39:30,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-02-19 21:39:30,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-02-19 21:39:30,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-02-19 21:39:30,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 155 states. [2021-02-19 21:39:30,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:39:37,759 WARN L202 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 220 [2021-02-19 21:39:38,670 WARN L202 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 218 [2021-02-19 21:39:39,612 WARN L202 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 223 [2021-02-19 21:39:40,387 WARN L202 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 215 [2021-02-19 21:39:41,149 WARN L202 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 213 [2021-02-19 21:39:41,942 WARN L202 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 218 [2021-02-19 21:39:42,664 WARN L202 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 209 [2021-02-19 21:39:43,396 WARN L202 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 207 [2021-02-19 21:39:44,144 WARN L202 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 212 [2021-02-19 21:39:44,849 WARN L202 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 202 [2021-02-19 21:39:45,552 WARN L202 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 200 [2021-02-19 21:39:46,294 WARN L202 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 205 [2021-02-19 21:39:46,967 WARN L202 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 195 [2021-02-19 21:39:47,651 WARN L202 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 193 [2021-02-19 21:39:48,367 WARN L202 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 198 [2021-02-19 21:39:49,038 WARN L202 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 188 [2021-02-19 21:39:49,715 WARN L202 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 186 [2021-02-19 21:39:50,415 WARN L202 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 191 [2021-02-19 21:39:51,061 WARN L202 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 181 [2021-02-19 21:39:51,715 WARN L202 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 179 [2021-02-19 21:39:52,405 WARN L202 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 184 [2021-02-19 21:39:53,039 WARN L202 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 174 [2021-02-19 21:39:53,678 WARN L202 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 172 [2021-02-19 21:39:54,359 WARN L202 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 177 [2021-02-19 21:39:54,987 WARN L202 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 167 [2021-02-19 21:39:55,591 WARN L202 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 165 [2021-02-19 21:39:56,238 WARN L202 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 170 [2021-02-19 21:39:56,832 WARN L202 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 160 [2021-02-19 21:39:57,419 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 158 [2021-02-19 21:39:58,019 WARN L202 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 163 [2021-02-19 21:39:58,576 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 153 [2021-02-19 21:39:59,152 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 151 [2021-02-19 21:39:59,721 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 156 [2021-02-19 21:40:00,229 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 146 [2021-02-19 21:40:00,749 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 144 [2021-02-19 21:40:01,317 WARN L202 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 149 [2021-02-19 21:40:01,845 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 139 [2021-02-19 21:40:02,382 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 137 [2021-02-19 21:40:02,939 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 142 [2021-02-19 21:40:03,437 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2021-02-19 21:40:03,943 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 130 [2021-02-19 21:40:04,488 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 135 [2021-02-19 21:40:04,967 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2021-02-19 21:40:05,458 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 123 [2021-02-19 21:40:05,975 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 128 [2021-02-19 21:40:06,425 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2021-02-19 21:40:06,899 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 116 [2021-02-19 21:40:07,384 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 121 [2021-02-19 21:40:07,811 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-02-19 21:40:08,255 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 109 [2021-02-19 21:40:08,729 WARN L202 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2021-02-19 21:40:09,147 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-02-19 21:40:09,589 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 102 [2021-02-19 21:40:10,015 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 107 [2021-02-19 21:40:10,395 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-02-19 21:40:10,803 WARN L202 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 95 [2021-02-19 21:40:11,234 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 100 [2021-02-19 21:40:11,578 WARN L202 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-02-19 21:40:11,958 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 88 [2021-02-19 21:40:12,351 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2021-02-19 21:40:12,664 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-02-19 21:40:12,987 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-02-19 21:40:13,356 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2021-02-19 21:40:13,679 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-02-19 21:40:14,020 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2021-02-19 21:40:14,376 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2021-02-19 21:40:14,685 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-02-19 21:40:14,995 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-02-19 21:40:15,342 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2021-02-19 21:40:15,629 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-02-19 21:40:15,924 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-02-19 21:40:16,238 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2021-02-19 21:40:16,501 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2021-02-19 21:40:17,040 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2021-02-19 21:40:17,559 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2021-02-19 21:40:18,275 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2021-02-19 21:40:19,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:40:19,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:40:19,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 21:40:19,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-19 21:40:19,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-02-19 21:40:19,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-02-19 21:40:19,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2021-02-19 21:40:19,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2021-02-19 21:40:20,140 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:40:20,140 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:40:20,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:40:20,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1183353687, now seen corresponding path program 9 times [2021-02-19 21:40:20,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:40:20,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444689784] [2021-02-19 21:40:20,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:40:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:40:30,246 INFO L134 CoverageAnalysis]: Checked inductivity of 11464 backedges. 3721 proven. 7743 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:40:30,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444689784] [2021-02-19 21:40:30,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555591707] [2021-02-19 21:40:30,247 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 [2021-02-19 21:40:30,930 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 91 check-sat command(s) [2021-02-19 21:40:30,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:40:30,947 WARN L261 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 601 conjunts are in the unsatisfiable core [2021-02-19 21:40:30,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:41:04,192 INFO L134 CoverageAnalysis]: Checked inductivity of 11464 backedges. 0 proven. 11464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:41:04,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:41:04,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 156] total 283 [2021-02-19 21:41:04,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916133818] [2021-02-19 21:41:04,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 284 states [2021-02-19 21:41:04,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:41:04,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 284 interpolants. [2021-02-19 21:41:04,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9558, Invalid=70814, Unknown=0, NotChecked=0, Total=80372 [2021-02-19 21:41:04,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:41:04,199 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:41:04,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 284 states, 284 states have (on average 2.183098591549296) internal successors, (620), 283 states have internal predecessors, (620), 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) [2021-02-19 21:41:04,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:41:04,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:41:04,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-02-19 21:41:04,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-02-19 21:41:04,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-02-19 21:41:04,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-02-19 21:41:04,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 155 states. [2021-02-19 21:41:04,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2021-02-19 21:41:04,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:41:29,294 WARN L202 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 284 DAG size of output: 219 [2021-02-19 21:41:30,907 WARN L202 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 210 [2021-02-19 21:41:32,197 WARN L202 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 203 [2021-02-19 21:41:33,431 WARN L202 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 196 [2021-02-19 21:41:34,632 WARN L202 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 189 [2021-02-19 21:41:36,016 WARN L202 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 182 [2021-02-19 21:41:37,459 WARN L202 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 175 [2021-02-19 21:41:38,857 WARN L202 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 168 [2021-02-19 21:41:40,118 WARN L202 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 161 [2021-02-19 21:41:41,377 WARN L202 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 154 [2021-02-19 21:41:42,552 WARN L202 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2021-02-19 21:41:43,686 WARN L202 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 140 [2021-02-19 21:41:44,875 WARN L202 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 133 [2021-02-19 21:41:46,003 WARN L202 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 126 [2021-02-19 21:41:47,025 WARN L202 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 119 [2021-02-19 21:41:48,043 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 112 [2021-02-19 21:41:48,989 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 105 [2021-02-19 21:41:49,895 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 98 [2021-02-19 21:41:50,729 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 91 [2021-02-19 21:41:51,574 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 84 [2021-02-19 21:41:52,406 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 77 [2021-02-19 21:41:53,250 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-02-19 21:41:54,033 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2021-02-19 21:41:54,733 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2021-02-19 21:41:55,393 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2021-02-19 21:41:56,014 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2021-02-19 21:43:02,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:43:02,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:43:02,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 21:43:02,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-19 21:43:02,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-02-19 21:43:02,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-02-19 21:43:02,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2021-02-19 21:43:02,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2021-02-19 21:43:02,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 315 states. [2021-02-19 21:43:02,536 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:43:02,537 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:43:02,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:43:02,537 INFO L82 PathProgramCache]: Analyzing trace with hash 329753895, now seen corresponding path program 10 times [2021-02-19 21:43:02,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:43:02,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736930073] [2021-02-19 21:43:02,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:43:04,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:43:16,544 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2021-02-19 21:44:50,259 INFO L134 CoverageAnalysis]: Checked inductivity of 30013 backedges. 0 proven. 30013 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:44:50,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736930073] [2021-02-19 21:44:50,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014120186] [2021-02-19 21:44:50,259 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 [2021-02-19 21:44:50,564 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 21:44:50,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:44:50,581 WARN L261 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 989 conjunts are in the unsatisfiable core [2021-02-19 21:44:50,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-02-19 21:47:06,506 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-02-19 21:47:06,507 WARN L545 AbstractCegarLoop]: Verification canceled [2021-02-19 21:47:06,511 WARN L224 ceAbstractionStarter]: Timeout [2021-02-19 21:47:06,511 INFO L202 PluginConnector]: Adding new model nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 09:47:06 BasicIcfg [2021-02-19 21:47:06,511 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 21:47:06,512 INFO L168 Benchmark]: Toolchain (without parser) took 530165.72 ms. Allocated memory was 417.3 MB in the beginning and 736.1 MB in the end (delta: 318.8 MB). Free memory was 397.7 MB in the beginning and 237.9 MB in the end (delta: 159.8 MB). Peak memory consumption was 482.0 MB. Max. memory is 16.0 GB. [2021-02-19 21:47:06,512 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.46 ms. Allocated memory is still 417.3 MB. Free memory was 398.8 MB in the beginning and 398.7 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 21:47:06,512 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.96 ms. Allocated memory is still 417.3 MB. Free memory was 397.2 MB in the beginning and 395.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-19 21:47:06,512 INFO L168 Benchmark]: Boogie Preprocessor took 11.70 ms. Allocated memory is still 417.3 MB. Free memory was 395.7 MB in the beginning and 394.8 MB in the end (delta: 955.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-19 21:47:06,513 INFO L168 Benchmark]: RCFGBuilder took 186.40 ms. Allocated memory is still 417.3 MB. Free memory was 394.7 MB in the beginning and 383.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-02-19 21:47:06,513 INFO L168 Benchmark]: TraceAbstraction took 529934.76 ms. Allocated memory was 417.3 MB in the beginning and 736.1 MB in the end (delta: 318.8 MB). Free memory was 383.1 MB in the beginning and 237.9 MB in the end (delta: 145.2 MB). Peak memory consumption was 467.3 MB. Max. memory is 16.0 GB. [2021-02-19 21:47:06,513 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.46 ms. Allocated memory is still 417.3 MB. Free memory was 398.8 MB in the beginning and 398.7 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.96 ms. Allocated memory is still 417.3 MB. Free memory was 397.2 MB in the beginning and 395.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.70 ms. Allocated memory is still 417.3 MB. Free memory was 395.7 MB in the beginning and 394.8 MB in the end (delta: 955.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 186.40 ms. Allocated memory is still 417.3 MB. Free memory was 394.7 MB in the beginning and 383.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 529934.76 ms. Allocated memory was 417.3 MB in the beginning and 736.1 MB in the end (delta: 318.8 MB). Free memory was 383.1 MB in the beginning and 237.9 MB in the end (delta: 145.2 MB). Peak memory consumption was 467.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 49). Cancelled while PartialOrderCegarLoop was analyzing trace of length 506 with TraceHistMax 123,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 313 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 529.8s, OverallIterations: 10, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 87.5s InterpolantComputationTime, 2070 NumberOfCodeBlocks, 2070 NumberOfCodeBlocksAsserted, 173 NumberOfCheckSat, 2052 ConstructedInterpolants, 0 QuantifiedInterpolants, 7807148 SizeOfPredicates, 45 NumberOfNonLiveVariables, 2502 ConjunctsInSsa, 1878 ConjunctsInUnsatCore, 18 InterpolantComputations, 0 PerfectInterpolantSequences, 4760/45716 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown