/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-bad/three-array-sum-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-19 22:05:28,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 22:05:28,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 22:05:28,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 22:05:28,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 22:05:28,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 22:05:28,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 22:05:28,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 22:05:28,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 22:05:28,721 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 22:05:28,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 22:05:28,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 22:05:28,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 22:05:28,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 22:05:28,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 22:05:28,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 22:05:28,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 22:05:28,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 22:05:28,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 22:05:28,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 22:05:28,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 22:05:28,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 22:05:28,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 22:05:28,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 22:05:28,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-19 22:05:28,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 22:05:28,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 22:05:28,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 22:05:28,762 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 22:05:28,791 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 22:05:28,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 22:05:28,792 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-19 22:05:28,792 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-19 22:05:28,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 22:05:28,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 22:05:28,793 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 22:05:28,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 22:05:28,794 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 22:05:28,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 22:05:28,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 22:05:28,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 22:05:28,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 22:05:28,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 22:05:28,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 22:05:28,795 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 22:05:28,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 22:05:28,795 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 22:05:28,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 22:05:28,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 22:05:28,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 22:05:28,796 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-19 22:05:28,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 22:05:28,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 22:05:28,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 22:05:28,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 22:05:28,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 22:05:28,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 22:05:28,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 22:05:28,797 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-19 22:05:28,797 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-19 22:05:28,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 22:05:28,797 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-02-19 22:05:28,797 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 22:05:29,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 22:05:29,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 22:05:29,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 22:05:29,089 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-19 22:05:29,094 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-19 22:05:29,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/three-array-sum-alt.wvr.bpl [2021-02-19 22:05:29,095 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/three-array-sum-alt.wvr.bpl' [2021-02-19 22:05:29,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 22:05:29,135 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 22:05:29,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-19 22:05:29,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-19 22:05:29,137 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-19 22:05:29,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:05:29" (1/1) ... [2021-02-19 22:05:29,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:05:29" (1/1) ... [2021-02-19 22:05:29,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-19 22:05:29,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 22:05:29,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 22:05:29,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 22:05:29,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:05:29" (1/1) ... [2021-02-19 22:05:29,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:05:29" (1/1) ... [2021-02-19 22:05:29,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:05:29" (1/1) ... [2021-02-19 22:05:29,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:05:29" (1/1) ... [2021-02-19 22:05:29,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:05:29" (1/1) ... [2021-02-19 22:05:29,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:05:29" (1/1) ... [2021-02-19 22:05:29,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:05:29" (1/1) ... [2021-02-19 22:05:29,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 22:05:29,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 22:05:29,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 22:05:29,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 22:05:29,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:05:29" (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 22:05:29,252 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-19 22:05:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-19 22:05:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-19 22:05:29,252 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-19 22:05:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-19 22:05:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-19 22:05:29,252 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-19 22:05:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 22:05:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 22:05:29,253 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-02-19 22:05:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-02-19 22:05:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-02-19 22:05:29,253 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 22:05:29,451 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 22:05:29,451 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-19 22:05:29,452 INFO L202 PluginConnector]: Adding new model three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:05:29 BoogieIcfgContainer [2021-02-19 22:05:29,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 22:05:29,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 22:05:29,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 22:05:29,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 22:05:29,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:05:29" (1/2) ... [2021-02-19 22:05:29,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25af8f8c and model type three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 10:05:29, skipping insertion in model container [2021-02-19 22:05:29,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:05:29" (2/2) ... [2021-02-19 22:05:29,458 INFO L111 eAbstractionObserver]: Analyzing ICFG three-array-sum-alt.wvr.bpl [2021-02-19 22:05:29,478 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-19 22:05:29,478 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 22:05:29,481 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 22:05:29,481 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-19 22:05:29,539 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-02-19 22:05:29,552 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 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 22:05:29,578 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 22:05:29,578 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 22:05:29,578 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 22:05:29,578 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 22:05:29,578 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 22:05:29,578 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 22:05:29,578 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 22:05:29,579 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 22:05:29,616 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:05:29,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:05:29,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1026034075, now seen corresponding path program 1 times [2021-02-19 22:05:29,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:05:29,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313635576] [2021-02-19 22:05:29,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:05:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:05:29,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:05:29,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313635576] [2021-02-19 22:05:29,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 22:05:29,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-02-19 22:05:29,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946802456] [2021-02-19 22:05:29,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 22:05:29,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:05:29,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 22:05:29,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 22:05:29,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:29,879 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:05:29,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 22:05:29,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:29,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:29,974 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 22:05:29,974 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:05:29,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:05:29,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1491705725, now seen corresponding path program 1 times [2021-02-19 22:05:29,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:05:29,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912206092] [2021-02-19 22:05:29,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:05:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:05:30,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:05:30,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912206092] [2021-02-19 22:05:30,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750341357] [2021-02-19 22:05:30,042 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 22:05:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:05:30,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2021-02-19 22:05:30,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:05:30,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:05:30,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:05:30,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-02-19 22:05:30,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096095313] [2021-02-19 22:05:30,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 22:05:30,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:05:30,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 22:05:30,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-19 22:05:30,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:30,186 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:05:30,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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 22:05:30,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:30,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:30,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:30,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:30,482 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:05:30,482 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:05:30,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:05:30,483 INFO L82 PathProgramCache]: Analyzing trace with hash -2014468443, now seen corresponding path program 1 times [2021-02-19 22:05:30,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:05:30,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492649784] [2021-02-19 22:05:30,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:05:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:05:30,549 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 22:05:30,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492649784] [2021-02-19 22:05:30,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79860869] [2021-02-19 22:05:30,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:05:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:05:30,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2021-02-19 22:05:30,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:05:30,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 22:05:30,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:05:30,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-02-19 22:05:30,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780773619] [2021-02-19 22:05:30,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 22:05:30,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:05:30,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 22:05:30,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-19 22:05:30,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:30,674 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:05:30,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 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 22:05:30,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:30,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:30,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:30,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:30,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:30,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:30,951 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:05:30,953 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:05:30,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:05:30,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1563412163, now seen corresponding path program 1 times [2021-02-19 22:05:30,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:05:30,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671667814] [2021-02-19 22:05:30,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:05:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:05:31,080 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:05:31,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671667814] [2021-02-19 22:05:31,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74511186] [2021-02-19 22:05:31,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 22:05:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:05:31,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 20 conjunts are in the unsatisfiable core [2021-02-19 22:05:31,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:05:31,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-02-19 22:05:31,342 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:05:31,345 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:31,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-02-19 22:05:31,350 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 22:05:31,351 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:31,352 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 22:05:31,352 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:5 [2021-02-19 22:05:31,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:05:31,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:05:31,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-02-19 22:05:31,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137454412] [2021-02-19 22:05:31,387 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 22:05:31,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:05:31,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 22:05:31,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-19 22:05:31,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:31,388 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:05:31,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 22:05:31,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:31,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:31,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:31,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:31,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:31,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:31,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:31,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:05:31,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:05:31,654 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:05:31,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:05:31,655 INFO L82 PathProgramCache]: Analyzing trace with hash 577872481, now seen corresponding path program 2 times [2021-02-19 22:05:31,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:05:31,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287029077] [2021-02-19 22:05:31,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:05:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:05:31,700 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 22:05:31,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287029077] [2021-02-19 22:05:31,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618792105] [2021-02-19 22:05:31,701 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 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 22:05:31,728 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 22:05:31,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:05:31,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 22:05:31,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:05:31,792 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 22:05:31,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:05:31,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-02-19 22:05:31,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64493631] [2021-02-19 22:05:31,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 22:05:31,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:05:31,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 22:05:31,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-02-19 22:05:31,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:31,794 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:05:31,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 9 states have internal predecessors, (42), 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 22:05:31,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:31,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:31,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:31,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:05:31,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:32,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:32,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:32,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:32,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:05:32,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 22:05:32,218 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:05:32,218 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:05:32,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:05:32,219 INFO L82 PathProgramCache]: Analyzing trace with hash -598222687, now seen corresponding path program 3 times [2021-02-19 22:05:32,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:05:32,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553977822] [2021-02-19 22:05:32,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:05:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:05:32,580 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:05:32,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553977822] [2021-02-19 22:05:32,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809421307] [2021-02-19 22:05:32,581 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 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 22:05:32,611 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-02-19 22:05:32,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:05:32,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 36 conjunts are in the unsatisfiable core [2021-02-19 22:05:32,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:05:32,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 22:05:33,000 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:05:33,023 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:33,033 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-02-19 22:05:33,033 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:63, output treesize:62 [2021-02-19 22:05:33,197 INFO L446 ElimStorePlain]: Different costs {0=[v_C_14], 2=[A, B]} [2021-02-19 22:05:33,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2021-02-19 22:05:33,203 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:05:33,217 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:33,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:33,221 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:05:33,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2021-02-19 22:05:33,224 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 22:05:33,234 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:33,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:33,237 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:05:33,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2021-02-19 22:05:33,240 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 22:05:33,248 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:33,250 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 22:05:33,250 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:54, output treesize:5 [2021-02-19 22:05:33,281 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:05:33,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:05:33,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 18 [2021-02-19 22:05:33,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088009928] [2021-02-19 22:05:33,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-19 22:05:33,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:05:33,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-19 22:05:33,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-02-19 22:05:33,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:33,285 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:05:33,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 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 22:05:33,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:33,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:33,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:33,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:05:33,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-19 22:05:33,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:33,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:33,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:33,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:33,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:05:33,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 22:05:33,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:33,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:05:33,898 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:05:33,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:05:33,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1995087011, now seen corresponding path program 4 times [2021-02-19 22:05:33,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:05:33,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248674257] [2021-02-19 22:05:33,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:05:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:05:33,951 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-19 22:05:33,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248674257] [2021-02-19 22:05:33,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172509291] [2021-02-19 22:05:33,951 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 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 22:05:33,980 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 22:05:33,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:05:33,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjunts are in the unsatisfiable core [2021-02-19 22:05:33,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:05:34,043 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-19 22:05:34,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:05:34,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-02-19 22:05:34,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614421754] [2021-02-19 22:05:34,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 22:05:34,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:05:34,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 22:05:34,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-02-19 22:05:34,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:34,045 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:05:34,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 9 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 22:05:34,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:34,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:34,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:34,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:05:34,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-19 22:05:34,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:34,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:34,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:34,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:34,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:34,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:05:34,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 22:05:34,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:34,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:34,380 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:05:34,380 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:05:34,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:05:34,380 INFO L82 PathProgramCache]: Analyzing trace with hash 69053985, now seen corresponding path program 5 times [2021-02-19 22:05:34,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:05:34,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760692283] [2021-02-19 22:05:34,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:05:34,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:05:34,457 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-02-19 22:05:34,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760692283] [2021-02-19 22:05:34,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586051568] [2021-02-19 22:05:34,458 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 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 22:05:34,484 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-02-19 22:05:34,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:05:34,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjunts are in the unsatisfiable core [2021-02-19 22:05:34,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:05:34,551 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-02-19 22:05:34,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:05:34,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-02-19 22:05:34,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866146842] [2021-02-19 22:05:34,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 22:05:34,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:05:34,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 22:05:34,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-02-19 22:05:34,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:34,553 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:05:34,553 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 9 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 22:05:34,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:34,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:34,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:34,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:05:34,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-19 22:05:34,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:34,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:34,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:34,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:34,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:34,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:34,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:05:34,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 22:05:34,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:34,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:34,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:34,878 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-02-19 22:05:34,878 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:05:34,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:05:34,878 INFO L82 PathProgramCache]: Analyzing trace with hash 940720349, now seen corresponding path program 6 times [2021-02-19 22:05:34,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:05:34,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243272468] [2021-02-19 22:05:34,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:05:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:05:35,542 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:05:35,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243272468] [2021-02-19 22:05:35,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721154866] [2021-02-19 22:05:35,542 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 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 22:05:35,582 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-02-19 22:05:35,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:05:35,583 WARN L261 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 63 conjunts are in the unsatisfiable core [2021-02-19 22:05:35,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:05:36,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 22:05:36,087 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:05:36,104 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:36,107 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 22:05:36,107 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:93, output treesize:92 [2021-02-19 22:05:36,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:36,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2021-02-19 22:05:36,194 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:05:36,217 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:36,220 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 22:05:36,220 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:116, output treesize:120 [2021-02-19 22:05:36,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 53 [2021-02-19 22:05:36,325 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:05:36,351 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:36,354 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 22:05:36,354 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:113, output treesize:115 [2021-02-19 22:05:36,458 INFO L446 ElimStorePlain]: Different costs {0=[A, v_C_18], 15=[B]} [2021-02-19 22:05:36,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 60 [2021-02-19 22:05:36,463 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:05:36,475 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:36,476 INFO L518 ElimStorePlain]: Eliminatee v_C_18 vanished before elimination [2021-02-19 22:05:36,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:36,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:36,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:36,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:36,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:36,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:36,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:36,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:36,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:36,515 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:36,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 82 [2021-02-19 22:05:36,547 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-02-19 22:05:36,558 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:36,563 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 22:05:36,565 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:121, output treesize:25 [2021-02-19 22:05:36,666 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:05:36,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:05:36,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18] total 28 [2021-02-19 22:05:36,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380744281] [2021-02-19 22:05:36,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-02-19 22:05:36,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:05:36,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-02-19 22:05:36,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2021-02-19 22:05:36,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:36,670 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:05:36,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 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 22:05:36,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:36,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:36,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:36,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:05:36,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-19 22:05:36,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:36,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:36,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:36,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:37,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:37,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:37,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:37,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:05:37,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 22:05:37,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:37,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:37,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:37,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 22:05:37,594 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:05:37,594 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:05:37,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:05:37,594 INFO L82 PathProgramCache]: Analyzing trace with hash -600693675, now seen corresponding path program 7 times [2021-02-19 22:05:37,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:05:37,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983278125] [2021-02-19 22:05:37,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:05:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:05:37,725 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 36 proven. 44 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-02-19 22:05:37,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983278125] [2021-02-19 22:05:37,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268793587] [2021-02-19 22:05:37,726 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 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 22:05:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:05:37,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjunts are in the unsatisfiable core [2021-02-19 22:05:37,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:05:37,873 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 49 proven. 31 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-02-19 22:05:37,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:05:37,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2021-02-19 22:05:37,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144780909] [2021-02-19 22:05:37,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-19 22:05:37,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:05:37,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-19 22:05:37,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2021-02-19 22:05:37,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:37,875 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:05:37,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 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 22:05:37,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:37,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:37,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:37,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:05:37,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-19 22:05:37,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:37,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:37,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:37,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 22:05:37,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:38,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:38,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:38,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:38,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:05:38,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 22:05:38,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:38,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:38,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:38,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 22:05:38,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 22:05:38,354 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-02-19 22:05:38,354 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:05:38,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:05:38,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1718663133, now seen corresponding path program 8 times [2021-02-19 22:05:38,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:05:38,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918083022] [2021-02-19 22:05:38,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:05:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:05:38,464 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 36 proven. 44 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-02-19 22:05:38,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918083022] [2021-02-19 22:05:38,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640161085] [2021-02-19 22:05:38,467 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 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 22:05:38,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 22:05:38,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:05:38,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 14 conjunts are in the unsatisfiable core [2021-02-19 22:05:38,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:05:38,619 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 49 proven. 31 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-02-19 22:05:38,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:05:38,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2021-02-19 22:05:38,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210418089] [2021-02-19 22:05:38,620 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-19 22:05:38,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:05:38,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-19 22:05:38,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2021-02-19 22:05:38,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:38,620 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:05:38,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 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 22:05:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:05:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-19 22:05:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 22:05:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-19 22:05:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:05:38,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:05:38,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:38,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 22:05:38,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:05:38,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 22:05:38,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:38,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:38,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:05:38,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 22:05:38,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 22:05:38,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 22:05:39,098 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-02-19 22:05:39,098 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:05:39,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:05:39,098 INFO L82 PathProgramCache]: Analyzing trace with hash 256025429, now seen corresponding path program 9 times [2021-02-19 22:05:39,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:05:39,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397643532] [2021-02-19 22:05:39,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:05:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:05:40,681 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:05:40,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397643532] [2021-02-19 22:05:40,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46118171] [2021-02-19 22:05:40,682 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:05:40,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-02-19 22:05:40,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:05:40,734 WARN L261 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 114 conjunts are in the unsatisfiable core [2021-02-19 22:05:40,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:05:42,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 22:05:42,275 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:05:42,300 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:42,303 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-02-19 22:05:42,303 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:136, output treesize:135 [2021-02-19 22:05:42,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-02-19 22:05:42,453 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:05:42,482 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:42,485 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-02-19 22:05:42,485 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:151, output treesize:151 [2021-02-19 22:05:42,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 53 [2021-02-19 22:05:42,660 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:05:42,692 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:42,695 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-02-19 22:05:42,695 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:168, output treesize:170 [2021-02-19 22:05:42,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 73 [2021-02-19 22:05:42,861 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:05:42,888 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:42,891 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-02-19 22:05:42,891 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:182, output treesize:181 [2021-02-19 22:05:43,113 INFO L354 Elim1Store]: treesize reduction 112, result has 15.8 percent of original size [2021-02-19 22:05:43,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 89 treesize of output 96 [2021-02-19 22:05:43,115 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:05:43,155 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:43,158 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-02-19 22:05:43,158 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:204, output treesize:203 [2021-02-19 22:05:43,402 INFO L354 Elim1Store]: treesize reduction 186, result has 13.1 percent of original size [2021-02-19 22:05:43,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 111 treesize of output 117 [2021-02-19 22:05:43,405 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:05:43,445 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:43,449 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-02-19 22:05:43,449 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:226, output treesize:264 [2021-02-19 22:05:43,737 INFO L354 Elim1Store]: treesize reduction 272, result has 11.4 percent of original size [2021-02-19 22:05:43,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 141 treesize of output 152 [2021-02-19 22:05:43,740 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:05:43,786 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:43,788 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-02-19 22:05:43,789 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:256, output treesize:258 [2021-02-19 22:05:44,288 INFO L446 ElimStorePlain]: Different costs {15=[v_C_26], 60=[A, B]} [2021-02-19 22:05:44,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,324 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-02-19 22:05:44,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 149 treesize of output 121 [2021-02-19 22:05:44,327 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:05:44,355 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:44,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:05:44,743 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2021-02-19 22:05:44,744 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:05:44,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 24 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 42 case distinctions, treesize of input 159 treesize of output 507 [2021-02-19 22:05:45,653 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 2905 DAG size of output: 1616 [2021-02-19 22:05:45,973 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 2923 DAG size of output: 1634 [2021-02-19 22:05:46,231 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 1551 DAG size of output: 1516 [2021-02-19 22:05:46,497 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 1482 DAG size of output: 1470 [2021-02-19 22:05:46,706 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 1461 DAG size of output: 1496 [2021-02-19 22:05:46,838 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 1456 DAG size of output: 1456 [2021-02-19 22:05:47,024 WARN L202 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 1191 DAG size of output: 1221 [2021-02-19 22:05:47,958 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 1543 DAG size of output: 1494 [2021-02-19 22:05:48,077 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 1813 DAG size of output: 1763 [2021-02-19 22:05:48,258 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 1922 DAG size of output: 1876 [2021-02-19 22:05:48,520 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 2055 DAG size of output: 2025 [2021-02-19 22:05:48,903 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 2235 DAG size of output: 2178 [2021-02-19 22:05:49,244 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 2235 DAG size of output: 2178 [2021-02-19 22:05:49,617 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 2242 DAG size of output: 2185 [2021-02-19 22:05:49,960 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 2168 DAG size of output: 2161 [2021-02-19 22:05:50,554 WARN L202 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 2023 DAG size of output: 2366 [2021-02-19 22:05:51,108 WARN L202 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 2020 DAG size of output: 2114 [2021-02-19 22:05:54,769 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 3229 DAG size of output: 3034 [2021-02-19 22:05:55,737 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 4448 DAG size of output: 4194 [2021-02-19 22:05:56,031 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 5707 DAG size of output: 5349 [2021-02-19 22:05:58,319 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 3558 DAG size of output: 3366 [2021-02-19 22:05:59,183 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 4701 DAG size of output: 4418 [2021-02-19 22:06:02,153 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 3562 DAG size of output: 3359 [2021-02-19 22:06:04,817 WARN L202 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 12060 DAG size of output: 11431 [2021-02-19 22:06:06,380 WARN L202 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 12995 DAG size of output: 12359 [2021-02-19 22:06:06,592 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 1385 DAG size of output: 1648 [2021-02-19 22:06:06,736 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 1382 DAG size of output: 1429 [2021-02-19 22:06:06,884 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 1379 DAG size of output: 1526 [2021-02-19 22:06:07,041 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 1376 DAG size of output: 1561 [2021-02-19 22:06:08,991 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 3652 DAG size of output: 3435 [2021-02-19 22:06:09,761 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 4797 DAG size of output: 4491 [2021-02-19 22:06:10,035 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 5423 DAG size of output: 5056 [2021-02-19 22:06:10,400 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 6096 DAG size of output: 5725 [2021-02-19 22:06:10,823 WARN L202 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 6683 DAG size of output: 6306 [2021-02-19 22:06:11,346 WARN L202 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 7190 DAG size of output: 6801 [2021-02-19 22:06:13,467 WARN L202 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 15843 DAG size of output: 15158 [2021-02-19 22:06:15,599 WARN L202 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 15843 DAG size of output: 15158 [2021-02-19 22:06:17,901 WARN L202 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 15852 DAG size of output: 15167 [2021-02-19 22:06:22,202 WARN L202 SmtUtils]: Spent 4.15 s on a formula simplification. DAG size of input: 15051 DAG size of output: 18145 [2021-02-19 22:06:24,389 WARN L202 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 14994 DAG size of output: 14944 [2021-02-19 22:06:25,492 WARN L202 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 6694 DAG size of output: 7460 [2021-02-19 22:06:26,548 WARN L202 SmtUtils]: Spent 972.00 ms on a formula simplification. DAG size of input: 6691 DAG size of output: 8126 [2021-02-19 22:06:27,094 WARN L202 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 6686 DAG size of output: 6687 [2021-02-19 22:06:29,829 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 2564 DAG size of output: 2453 [2021-02-19 22:06:29,989 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 2980 DAG size of output: 2834 [2021-02-19 22:06:30,187 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 3217 DAG size of output: 3069 [2021-02-19 22:06:30,483 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 4301 DAG size of output: 4110 [2021-02-19 22:06:31,826 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 2061 DAG size of output: 1952 [2021-02-19 22:06:32,278 WARN L202 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 5684 DAG size of output: 5401 [2021-02-19 22:06:33,160 WARN L202 SmtUtils]: Spent 818.00 ms on a formula simplification. DAG size of input: 6198 DAG size of output: 6622 [2021-02-19 22:06:33,592 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 6190 DAG size of output: 6191 [2021-02-19 22:06:35,477 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 2808 DAG size of output: 2594 [2021-02-19 22:06:36,272 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 3653 DAG size of output: 3327 [2021-02-19 22:06:38,417 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 2721 DAG size of output: 2521 [2021-02-19 22:06:38,586 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 3271 DAG size of output: 3030 Received shutdown request... [2021-02-19 22:15:01,988 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-02-19 22:15:01,988 WARN L545 AbstractCegarLoop]: Verification canceled [2021-02-19 22:15:01,992 WARN L224 ceAbstractionStarter]: Timeout [2021-02-19 22:15:01,992 INFO L202 PluginConnector]: Adding new model three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 10:15:01 BasicIcfg [2021-02-19 22:15:01,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 22:15:01,993 INFO L168 Benchmark]: Toolchain (without parser) took 572861.75 ms. Allocated memory was 255.9 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 236.5 MB in the beginning and 2.0 GB in the end (delta: -1.8 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. [2021-02-19 22:15:01,993 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 22:15:01,993 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.65 ms. Allocated memory is still 255.9 MB. Free memory was 235.9 MB in the beginning and 234.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 22:15:01,993 INFO L168 Benchmark]: Boogie Preprocessor took 21.23 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 233.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-19 22:15:01,993 INFO L168 Benchmark]: RCFGBuilder took 266.40 ms. Allocated memory is still 255.9 MB. Free memory was 233.4 MB in the beginning and 234.8 MB in the end (delta: -1.4 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.0 GB. [2021-02-19 22:15:01,993 INFO L168 Benchmark]: TraceAbstraction took 572538.76 ms. Allocated memory was 255.9 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 234.3 MB in the beginning and 2.0 GB in the end (delta: -1.8 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. [2021-02-19 22:15:01,994 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 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 26.65 ms. Allocated memory is still 255.9 MB. Free memory was 235.9 MB in the beginning and 234.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 21.23 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 233.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 266.40 ms. Allocated memory is still 255.9 MB. Free memory was 233.4 MB in the beginning and 234.8 MB in the end (delta: -1.4 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 572538.76 ms. Allocated memory was 255.9 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 234.3 MB in the beginning and 2.0 GB in the end (delta: -1.8 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 65). Cancelled while PartialOrderCegarLoop was analyzing trace of length 65 with TraceHistMax 8,while TraceCheckSpWp was constructing forward predicates,while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations,while ExplicitLhsPolynomialRelations was build 0 of 1 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 572.4s, OverallIterations: 12, 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: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 664 NumberOfCodeBlocks, 664 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 643 ConstructedInterpolants, 25 QuantifiedInterpolants, 262715 SizeOfPredicates, 31 NumberOfNonLiveVariables, 900 ConjunctsInSsa, 174 ConjunctsInUnsatCore, 21 InterpolantComputations, 1 PerfectInterpolantSequences, 401/744 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