/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-proofs/counter-add-2-context-alt-CGj.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-19 22:42:29,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 22:42:29,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 22:42:29,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-19 22:42:29,597 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 22:42:29,637 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 22:42:29,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 22:42:29,638 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-19 22:42:29,638 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-19 22:42:29,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 22:42:29,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 22:42:29,641 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 22:42:29,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 22:42:29,642 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 22:42:29,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 22:42:29,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 22:42:29,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 22:42:29,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 22:42:29,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 22:42:29,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 22:42:29,643 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 22:42:29,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 22:42:29,643 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 22:42:29,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 22:42:29,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 22:42:29,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 22:42:29,644 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-19 22:42:29,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 22:42:29,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 22:42:29,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 22:42:29,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 22:42:29,645 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 22:42:29,645 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 22:42:29,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 22:42:29,645 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-19 22:42:29,645 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-19 22:42:29,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 22:42:29,646 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-02-19 22:42:29,646 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 22:42:29,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 22:42:29,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 22:42:29,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 22:42:29,966 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-19 22:42:29,968 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-19 22:42:29,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-2-context-alt-CGj.wvr.bpl [2021-02-19 22:42:29,969 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-2-context-alt-CGj.wvr.bpl' [2021-02-19 22:42:30,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 22:42:30,008 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 22:42:30,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-19 22:42:30,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-19 22:42:30,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-19 22:42:30,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-add-2-context-alt-CGj.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:42:29" (1/1) ... [2021-02-19 22:42:30,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-add-2-context-alt-CGj.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:42:29" (1/1) ... [2021-02-19 22:42:30,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-19 22:42:30,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 22:42:30,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 22:42:30,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 22:42:30,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-add-2-context-alt-CGj.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:42:29" (1/1) ... [2021-02-19 22:42:30,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-add-2-context-alt-CGj.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:42:29" (1/1) ... [2021-02-19 22:42:30,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-add-2-context-alt-CGj.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:42:29" (1/1) ... [2021-02-19 22:42:30,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-add-2-context-alt-CGj.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:42:29" (1/1) ... [2021-02-19 22:42:30,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-add-2-context-alt-CGj.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:42:29" (1/1) ... [2021-02-19 22:42:30,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-add-2-context-alt-CGj.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:42:29" (1/1) ... [2021-02-19 22:42:30,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-add-2-context-alt-CGj.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:42:29" (1/1) ... [2021-02-19 22:42:30,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 22:42:30,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 22:42:30,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 22:42:30,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 22:42:30,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-add-2-context-alt-CGj.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:42:29" (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 22:42:30,119 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-19 22:42:30,119 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-19 22:42:30,119 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-19 22:42:30,119 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-19 22:42:30,119 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-19 22:42:30,120 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-19 22:42:30,120 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-19 22:42:30,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 22:42:30,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 22:42:30,121 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 22:42:30,338 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 22:42:30,338 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-19 22:42:30,340 INFO L202 PluginConnector]: Adding new model counter-add-2-context-alt-CGj.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:42:30 BoogieIcfgContainer [2021-02-19 22:42:30,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 22:42:30,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 22:42:30,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 22:42:30,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 22:42:30,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-add-2-context-alt-CGj.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:42:29" (1/2) ... [2021-02-19 22:42:30,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a45e383 and model type counter-add-2-context-alt-CGj.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 10:42:30, skipping insertion in model container [2021-02-19 22:42:30,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-add-2-context-alt-CGj.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:42:30" (2/2) ... [2021-02-19 22:42:30,350 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-add-2-context-alt-CGj.wvr.bpl [2021-02-19 22:42:30,354 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-19 22:42:30,355 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 22:42:30,357 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 22:42:30,358 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-19 22:42:30,382 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-02-19 22:42:30,396 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) [2021-02-19 22:42:30,474 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 22:42:30,474 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 22:42:30,474 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 22:42:30,474 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 22:42:30,474 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 22:42:30,475 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 22:42:30,475 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 22:42:30,475 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-02-19 22:42:30,557 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:42:30,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:42:30,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1355572749, now seen corresponding path program 1 times [2021-02-19 22:42:30,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:42:30,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387684346] [2021-02-19 22:42:30,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:42:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:42:31,041 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 22:42:31,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387684346] [2021-02-19 22:42:31,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807054082] [2021-02-19 22:42:31,043 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 22:42:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:42:31,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 15 conjunts are in the unsatisfiable core [2021-02-19 22:42:31,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:42:31,391 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 22:42:31,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:42:31,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-02-19 22:42:31,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420554730] [2021-02-19 22:42:31,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-02-19 22:42:31,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:42:31,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-02-19 22:42:31,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2021-02-19 22:42:31,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:42:31,411 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:42:31,412 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 22:42:31,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:42:31,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:42:31,770 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-02-19 22:42:31,770 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:42:31,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:42:31,772 INFO L82 PathProgramCache]: Analyzing trace with hash -159526841, now seen corresponding path program 2 times [2021-02-19 22:42:31,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:42:31,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644347728] [2021-02-19 22:42:31,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:42:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:42:32,064 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 22:42:32,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644347728] [2021-02-19 22:42:32,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236050843] [2021-02-19 22:42:32,065 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 22:42:32,099 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 22:42:32,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:42:32,100 WARN L261 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 28 conjunts are in the unsatisfiable core [2021-02-19 22:42:32,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:42:32,581 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 22:42:32,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:42:32,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-02-19 22:42:32,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57062590] [2021-02-19 22:42:32,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-19 22:42:32,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:42:32,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-19 22:42:32,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2021-02-19 22:42:32,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:42:32,593 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:42:32,593 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 22:42:32,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:42:32,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:42:33,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:42:33,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:42:33,341 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:42:33,341 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:42:33,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:42:33,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1467933503, now seen corresponding path program 3 times [2021-02-19 22:42:33,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:42:33,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621268360] [2021-02-19 22:42:33,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:42:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:42:33,794 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 22:42:33,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621268360] [2021-02-19 22:42:33,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337731735] [2021-02-19 22:42:33,795 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 [2021-02-19 22:42:33,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-02-19 22:42:33,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:42:33,840 WARN L261 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 41 conjunts are in the unsatisfiable core [2021-02-19 22:42:33,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:42:34,425 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 22:42:34,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:42:34,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-02-19 22:42:34,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111562832] [2021-02-19 22:42:34,426 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-02-19 22:42:34,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:42:34,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-02-19 22:42:34,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2021-02-19 22:42:34,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:42:34,428 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:42:34,428 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 22:42:34,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:42:34,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:42:34,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:42:35,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:42:35,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:42:35,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:42:35,675 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:42:35,678 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:42:35,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:42:35,679 INFO L82 PathProgramCache]: Analyzing trace with hash -37464857, now seen corresponding path program 4 times [2021-02-19 22:42:35,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:42:35,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096466605] [2021-02-19 22:42:35,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:42:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:42:36,471 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 22:42:36,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096466605] [2021-02-19 22:42:36,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686361353] [2021-02-19 22:42:36,472 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 22:42:36,508 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 22:42:36,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:42:36,510 WARN L261 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 93 conjunts are in the unsatisfiable core [2021-02-19 22:42:36,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:42:37,834 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 22:42:37,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:42:37,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 29] total 51 [2021-02-19 22:42:37,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894001666] [2021-02-19 22:42:37,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-02-19 22:42:37,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:42:37,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-02-19 22:42:37,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=2439, Unknown=0, NotChecked=0, Total=2652 [2021-02-19 22:42:37,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:42:37,838 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:42:37,838 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 22:42:37,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:42:37,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:42:37,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:42:37,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:42:39,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:42:39,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:42:39,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:42:39,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:42:39,826 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:42:39,827 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:42:39,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:42:39,827 INFO L82 PathProgramCache]: Analyzing trace with hash -84745319, now seen corresponding path program 5 times [2021-02-19 22:42:39,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:42:39,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186130635] [2021-02-19 22:42:39,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:42:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:42:40,584 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 22:42:40,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186130635] [2021-02-19 22:42:40,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904175758] [2021-02-19 22:42:40,584 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 22:42:40,636 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2021-02-19 22:42:40,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:42:40,638 WARN L261 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 121 conjunts are in the unsatisfiable core [2021-02-19 22:42:40,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:42:42,200 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 22:42:42,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:42:42,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 36] total 67 [2021-02-19 22:42:42,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525340495] [2021-02-19 22:42:42,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 68 states [2021-02-19 22:42:42,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:42:42,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2021-02-19 22:42:42,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=570, Invalid=3986, Unknown=0, NotChecked=0, Total=4556 [2021-02-19 22:42:42,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:42:42,204 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:42:42,204 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 22:42:42,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:42:42,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:42:42,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:42:42,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:42:42,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:42:45,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:42:45,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:42:45,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:42:45,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:42:45,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-02-19 22:42:45,686 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:42:45,686 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:42:45,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:42:45,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1843655335, now seen corresponding path program 6 times [2021-02-19 22:42:45,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:42:45,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401667934] [2021-02-19 22:42:45,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:42:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:42:47,743 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 22:42:47,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401667934] [2021-02-19 22:42:47,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744625402] [2021-02-19 22:42:47,743 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 22:42:47,895 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 40 check-sat command(s) [2021-02-19 22:42:47,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:42:47,898 WARN L261 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 221 conjunts are in the unsatisfiable core [2021-02-19 22:42:47,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:42:52,255 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 22:42:52,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:42:52,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 61] total 107 [2021-02-19 22:42:52,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477444669] [2021-02-19 22:42:52,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 108 states [2021-02-19 22:42:52,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:42:52,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2021-02-19 22:42:52,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=733, Invalid=10823, Unknown=0, NotChecked=0, Total=11556 [2021-02-19 22:42:52,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:42:52,260 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:42:52,260 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 22:42:52,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:42:52,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:42:52,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:42:52,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:42:52,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-02-19 22:42:52,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:42:54,270 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 108 [2021-02-19 22:42:54,562 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 106 [2021-02-19 22:42:54,871 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-02-19 22:42:55,094 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 103 [2021-02-19 22:42:55,321 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 101 [2021-02-19 22:42:55,568 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2021-02-19 22:42:55,785 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-02-19 22:42:55,997 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 95 [2021-02-19 22:42:56,237 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 100 [2021-02-19 22:42:56,429 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-02-19 22:42:56,693 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 88 [2021-02-19 22:42:56,907 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2021-02-19 22:42:57,103 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-02-19 22:42:57,345 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-02-19 22:42:57,550 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2021-02-19 22:42:57,714 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-02-19 22:42:57,934 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2021-02-19 22:42:58,137 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2021-02-19 22:42:58,497 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-02-19 22:42:58,662 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2021-02-19 22:42:59,008 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-02-19 22:42:59,440 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-02-19 22:43:01,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:43:01,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:43:01,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:43:01,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:43:01,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-02-19 22:43:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-02-19 22:43:01,242 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:43:01,242 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:43:01,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:43:01,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1006417591, now seen corresponding path program 7 times [2021-02-19 22:43:01,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:43:01,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592690013] [2021-02-19 22:43:01,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:43:01,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:43:03,921 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 22:43:03,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592690013] [2021-02-19 22:43:03,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693822144] [2021-02-19 22:43:03,922 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 22:43:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:43:04,023 WARN L261 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 281 conjunts are in the unsatisfiable core [2021-02-19 22:43:04,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:43:10,431 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 22:43:10,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:43:10,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 76] total 139 [2021-02-19 22:43:10,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472315054] [2021-02-19 22:43:10,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 140 states [2021-02-19 22:43:10,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:43:10,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 140 interpolants. [2021-02-19 22:43:10,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2350, Invalid=17110, Unknown=0, NotChecked=0, Total=19460 [2021-02-19 22:43:10,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:43:10,438 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:43:10,438 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 22:43:10,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:43:10,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:43:10,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:43:10,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:43:10,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-02-19 22:43:10,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-02-19 22:43:10,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:43:13,974 WARN L202 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 107 [2021-02-19 22:43:14,383 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 98 [2021-02-19 22:43:14,784 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 91 [2021-02-19 22:43:15,105 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 84 [2021-02-19 22:43:15,465 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 77 [2021-02-19 22:43:15,725 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-02-19 22:43:15,993 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2021-02-19 22:43:22,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:43:22,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:43:22,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:43:22,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:43:22,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-02-19 22:43:22,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-02-19 22:43:22,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2021-02-19 22:43:22,773 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-02-19 22:43:22,773 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:43:22,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:43:22,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1399664167, now seen corresponding path program 8 times [2021-02-19 22:43:22,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:43:22,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57006759] [2021-02-19 22:43:22,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:43:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:43:30,185 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 22:43:30,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57006759] [2021-02-19 22:43:30,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288546562] [2021-02-19 22:43:30,186 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 22:43:30,306 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 22:43:30,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:43:30,325 WARN L261 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 477 conjunts are in the unsatisfiable core [2021-02-19 22:43:30,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:43:49,394 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 22:43:49,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:43:49,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 125] total 219 [2021-02-19 22:43:49,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120805312] [2021-02-19 22:43:49,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 220 states [2021-02-19 22:43:49,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:43:49,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 220 interpolants. [2021-02-19 22:43:49,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2733, Invalid=45447, Unknown=0, NotChecked=0, Total=48180 [2021-02-19 22:43:49,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:43:49,406 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:43:49,407 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 22:43:49,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:43:49,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:43:49,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:43:49,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:43:49,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-02-19 22:43:49,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-02-19 22:43:49,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 155 states. [2021-02-19 22:43:49,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:43:56,350 WARN L202 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 220 [2021-02-19 22:43:57,258 WARN L202 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 218 [2021-02-19 22:43:58,179 WARN L202 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 223 [2021-02-19 22:43:58,956 WARN L202 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 215 [2021-02-19 22:43:59,754 WARN L202 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 213 [2021-02-19 22:44:00,612 WARN L202 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 218 [2021-02-19 22:44:01,341 WARN L202 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 209 [2021-02-19 22:44:02,091 WARN L202 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 207 [2021-02-19 22:44:02,865 WARN L202 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 212 [2021-02-19 22:44:03,573 WARN L202 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 202 [2021-02-19 22:44:04,278 WARN L202 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 200 [2021-02-19 22:44:05,013 WARN L202 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 205 [2021-02-19 22:44:05,700 WARN L202 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 195 [2021-02-19 22:44:06,387 WARN L202 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 193 [2021-02-19 22:44:07,101 WARN L202 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 198 [2021-02-19 22:44:07,758 WARN L202 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 188 [2021-02-19 22:44:08,495 WARN L202 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 186 [2021-02-19 22:44:09,175 WARN L202 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 191 [2021-02-19 22:44:09,830 WARN L202 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 181 [2021-02-19 22:44:10,528 WARN L202 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 179 [2021-02-19 22:44:11,279 WARN L202 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 184 [2021-02-19 22:44:11,948 WARN L202 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 174 [2021-02-19 22:44:12,630 WARN L202 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 172 [2021-02-19 22:44:13,341 WARN L202 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 177 [2021-02-19 22:44:13,962 WARN L202 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 167 [2021-02-19 22:44:14,600 WARN L202 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 165 [2021-02-19 22:44:15,247 WARN L202 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 170 [2021-02-19 22:44:15,846 WARN L202 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 160 [2021-02-19 22:44:16,436 WARN L202 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 158 [2021-02-19 22:44:17,060 WARN L202 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 163 [2021-02-19 22:44:17,643 WARN L202 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 153 [2021-02-19 22:44:18,217 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 151 [2021-02-19 22:44:18,802 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 156 [2021-02-19 22:44:19,331 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 146 [2021-02-19 22:44:19,879 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 144 [2021-02-19 22:44:20,441 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 149 [2021-02-19 22:44:20,967 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 139 [2021-02-19 22:44:21,487 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 137 [2021-02-19 22:44:22,037 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 142 [2021-02-19 22:44:22,537 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2021-02-19 22:44:23,054 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 130 [2021-02-19 22:44:23,576 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 135 [2021-02-19 22:44:24,053 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2021-02-19 22:44:24,535 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 123 [2021-02-19 22:44:25,038 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 128 [2021-02-19 22:44:25,483 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2021-02-19 22:44:25,946 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 116 [2021-02-19 22:44:26,432 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 121 [2021-02-19 22:44:26,882 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-02-19 22:44:27,338 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 109 [2021-02-19 22:44:27,794 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2021-02-19 22:44:28,203 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-02-19 22:44:28,615 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 102 [2021-02-19 22:44:29,072 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 107 [2021-02-19 22:44:29,460 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-02-19 22:44:29,847 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 95 [2021-02-19 22:44:30,276 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 100 [2021-02-19 22:44:30,644 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-02-19 22:44:31,017 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 88 [2021-02-19 22:44:31,408 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2021-02-19 22:44:31,744 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-02-19 22:44:32,097 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-02-19 22:44:32,464 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2021-02-19 22:44:32,784 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-02-19 22:44:33,113 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2021-02-19 22:44:33,456 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2021-02-19 22:44:33,765 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-02-19 22:44:34,069 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-02-19 22:44:34,402 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2021-02-19 22:44:34,679 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-02-19 22:44:34,972 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-02-19 22:44:35,281 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2021-02-19 22:44:35,547 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2021-02-19 22:44:35,829 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-02-19 22:44:36,109 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2021-02-19 22:44:36,625 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2021-02-19 22:44:36,879 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-02-19 22:44:37,362 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2021-02-19 22:44:39,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:44:39,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:44:39,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:44:39,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:44:39,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-02-19 22:44:39,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-02-19 22:44:39,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2021-02-19 22:44:39,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2021-02-19 22:44:39,374 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:44:39,374 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:44:39,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:44:39,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1183353687, now seen corresponding path program 9 times [2021-02-19 22:44:39,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:44:39,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113605719] [2021-02-19 22:44:39,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:44:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:44:50,439 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 22:44:50,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113605719] [2021-02-19 22:44:50,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82067212] [2021-02-19 22:44:50,439 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 22:44:51,127 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 91 check-sat command(s) [2021-02-19 22:44:51,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:44:51,151 WARN L261 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 601 conjunts are in the unsatisfiable core [2021-02-19 22:44:51,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:45:34,191 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 22:45:34,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:45:34,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 156] total 283 [2021-02-19 22:45:34,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87263220] [2021-02-19 22:45:34,192 INFO L460 AbstractCegarLoop]: Interpolant automaton has 284 states [2021-02-19 22:45:34,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:45:34,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 284 interpolants. [2021-02-19 22:45:34,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9558, Invalid=70814, Unknown=0, NotChecked=0, Total=80372 [2021-02-19 22:45:34,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:45:34,207 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:45:34,208 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 22:45:34,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:45:34,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:45:34,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:45:34,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:45:34,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-02-19 22:45:34,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-02-19 22:45:34,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 155 states. [2021-02-19 22:45:34,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2021-02-19 22:45:34,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:46:09,152 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 284 DAG size of output: 219 [2021-02-19 22:46:11,260 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 268 DAG size of output: 210 [2021-02-19 22:46:13,178 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 259 DAG size of output: 203 [2021-02-19 22:46:15,014 WARN L202 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 196 [2021-02-19 22:46:16,850 WARN L202 SmtUtils]: Spent 934.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 189 [2021-02-19 22:46:18,625 WARN L202 SmtUtils]: Spent 906.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 182 [2021-02-19 22:46:20,355 WARN L202 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 175 [2021-02-19 22:46:22,019 WARN L202 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 168 [2021-02-19 22:46:23,737 WARN L202 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 161 [2021-02-19 22:46:25,378 WARN L202 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 154 [2021-02-19 22:46:27,005 WARN L202 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2021-02-19 22:46:28,583 WARN L202 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 140 [2021-02-19 22:46:30,109 WARN L202 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 133 [2021-02-19 22:46:31,638 WARN L202 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 126 [2021-02-19 22:46:33,135 WARN L202 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 119 [2021-02-19 22:46:34,528 WARN L202 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 112 [2021-02-19 22:46:35,873 WARN L202 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 105 [2021-02-19 22:46:37,203 WARN L202 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 98 [2021-02-19 22:46:38,460 WARN L202 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 91 [2021-02-19 22:46:39,748 WARN L202 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 84 [2021-02-19 22:46:40,819 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 77 [2021-02-19 22:46:41,653 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-02-19 22:46:42,757 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2021-02-19 22:46:43,851 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2021-02-19 22:46:44,847 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2021-02-19 22:46:45,833 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2021-02-19 22:46:46,748 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 35 [2021-02-19 22:46:47,616 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2021-02-19 22:47:02,263 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:47:12,528 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 19 [2021-02-19 22:47:13,306 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 19 [2021-02-19 22:48:22,010 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 21 [2021-02-19 22:48:25,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:48:25,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:48:25,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:48:25,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:48:25,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-02-19 22:48:25,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-02-19 22:48:25,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2021-02-19 22:48:25,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2021-02-19 22:48:25,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 315 states. [2021-02-19 22:48:25,218 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:48:25,219 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:48:25,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:48:25,219 INFO L82 PathProgramCache]: Analyzing trace with hash 329753895, now seen corresponding path program 10 times [2021-02-19 22:48:25,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:48:25,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786431491] [2021-02-19 22:48:25,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:48:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:48:40,552 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2021-02-19 22:50:21,280 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 22:50:21,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786431491] [2021-02-19 22:50:21,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122844509] [2021-02-19 22:50:21,281 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 22:50:21,592 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 22:50:21,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:50:21,611 WARN L261 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 989 conjunts are in the unsatisfiable core [2021-02-19 22:50:21,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-02-19 22:51:17,606 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-02-19 22:51:17,607 WARN L545 AbstractCegarLoop]: Verification canceled [2021-02-19 22:51:17,611 WARN L224 ceAbstractionStarter]: Timeout [2021-02-19 22:51:17,612 INFO L202 PluginConnector]: Adding new model counter-add-2-context-alt-CGj.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 10:51:17 BasicIcfg [2021-02-19 22:51:17,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 22:51:17,613 INFO L168 Benchmark]: Toolchain (without parser) took 527610.87 ms. Allocated memory was 255.9 MB in the beginning and 906.0 MB in the end (delta: 650.1 MB). Free memory was 236.7 MB in the beginning and 639.0 MB in the end (delta: -402.4 MB). Peak memory consumption was 248.6 MB. Max. memory is 16.0 GB. [2021-02-19 22:51:17,613 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.6 MB in the end (delta: 180.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-19 22:51:17,613 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.51 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-19 22:51:17,613 INFO L168 Benchmark]: Boogie Preprocessor took 18.08 ms. Allocated memory is still 255.9 MB. Free memory was 234.7 MB in the beginning and 233.9 MB in the end (delta: 833.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 22:51:17,613 INFO L168 Benchmark]: RCFGBuilder took 281.45 ms. Allocated memory is still 255.9 MB. Free memory was 233.7 MB in the beginning and 237.0 MB in the end (delta: -3.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.0 GB. [2021-02-19 22:51:17,614 INFO L168 Benchmark]: TraceAbstraction took 527270.47 ms. Allocated memory was 255.9 MB in the beginning and 906.0 MB in the end (delta: 650.1 MB). Free memory was 236.3 MB in the beginning and 639.0 MB in the end (delta: -402.7 MB). Peak memory consumption was 247.1 MB. Max. memory is 16.0 GB. [2021-02-19 22:51:17,614 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 0.14 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.6 MB in the end (delta: 180.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 29.51 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.08 ms. Allocated memory is still 255.9 MB. Free memory was 234.7 MB in the beginning and 233.9 MB in the end (delta: 833.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 281.45 ms. Allocated memory is still 255.9 MB. Free memory was 233.7 MB in the beginning and 237.0 MB in the end (delta: -3.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 527270.47 ms. Allocated memory was 255.9 MB in the beginning and 906.0 MB in the end (delta: 650.1 MB). Free memory was 236.3 MB in the beginning and 639.0 MB in the end (delta: -402.7 MB). Peak memory consumption was 247.1 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 243 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 527.1s, 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, 1.9s SatisfiabilityAnalysisTime, 101.5s 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