/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-POR-DelaySleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d47b94137d5c7dd60722882962a90fb345e61909-d47b941 [2021-05-03 19:57:22,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-03 19:57:22,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-03 19:57:22,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-03 19:57:22,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-03 19:57:22,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-03 19:57:22,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-03 19:57:22,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-03 19:57:22,470 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-03 19:57:22,471 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-03 19:57:22,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-03 19:57:22,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-03 19:57:22,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-03 19:57:22,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-03 19:57:22,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-03 19:57:22,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-03 19:57:22,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-03 19:57:22,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-03 19:57:22,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-03 19:57:22,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-03 19:57:22,502 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe.epf [2021-05-03 19:57:22,536 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-03 19:57:22,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-03 19:57:22,537 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-03 19:57:22,537 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-03 19:57:22,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-03 19:57:22,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-03 19:57:22,540 INFO L138 SettingsManager]: * Use SBE=true [2021-05-03 19:57:22,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-03 19:57:22,540 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-03 19:57:22,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-03 19:57:22,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-03 19:57:22,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-03 19:57:22,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-03 19:57:22,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-03 19:57:22,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-03 19:57:22,542 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-03 19:57:22,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-03 19:57:22,542 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-03 19:57:22,542 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-03 19:57:22,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-03 19:57:22,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-03 19:57:22,543 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-03 19:57:22,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-03 19:57:22,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-03 19:57:22,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-03 19:57:22,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-03 19:57:22,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-03 19:57:22,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-03 19:57:22,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-03 19:57:22,544 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-03 19:57:22,544 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-05-03 19:57:22,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-03 19:57:22,544 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-05-03 19:57:22,545 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-03 19:57:22,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-03 19:57:22,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-03 19:57:22,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-03 19:57:22,893 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-05-03 19:57:22,894 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-05-03 19:57:22,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl [2021-05-03 19:57:22,895 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl' [2021-05-03 19:57:22,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-03 19:57:22,968 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-03 19:57:22,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-03 19:57:22,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-03 19:57:22,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-03 19:57:22,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:57:22" (1/1) ... [2021-05-03 19:57:22,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:57:22" (1/1) ... [2021-05-03 19:57:22,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-03 19:57:22,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-03 19:57:22,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-03 19:57:22,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-03 19:57:23,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:57:22" (1/1) ... [2021-05-03 19:57:23,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:57:22" (1/1) ... [2021-05-03 19:57:23,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:57:22" (1/1) ... [2021-05-03 19:57:23,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:57:22" (1/1) ... [2021-05-03 19:57:23,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:57:22" (1/1) ... [2021-05-03 19:57:23,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:57:22" (1/1) ... [2021-05-03 19:57:23,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:57:22" (1/1) ... [2021-05-03 19:57:23,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-03 19:57:23,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-03 19:57:23,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-03 19:57:23,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-03 19:57:23,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:57:22" (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 [2021-05-03 19:57:23,099 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-05-03 19:57:23,099 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-05-03 19:57:23,099 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-05-03 19:57:23,099 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-05-03 19:57:23,099 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-05-03 19:57:23,099 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-05-03 19:57:23,100 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-05-03 19:57:23,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-03 19:57:23,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-03 19:57:23,100 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-05-03 19:57:23,100 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-05-03 19:57:23,100 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-05-03 19:57:23,101 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-03 19:57:23,329 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-03 19:57:23,329 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-05-03 19:57:23,331 INFO L202 PluginConnector]: Adding new model dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 07:57:23 BoogieIcfgContainer [2021-05-03 19:57:23,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-03 19:57:23,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-03 19:57:23,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-03 19:57:23,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-03 19:57:23,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:57:22" (1/2) ... [2021-05-03 19:57:23,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6ce0fd and model type dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 07:57:23, skipping insertion in model container [2021-05-03 19:57:23,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 07:57:23" (2/2) ... [2021-05-03 19:57:23,338 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product.wvr.bpl [2021-05-03 19:57:23,359 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-03 19:57:23,359 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-03 19:57:23,362 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-03 19:57:23,363 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-03 19:57:23,408 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-05-03 19:57:23,423 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) [2021-05-03 19:57:23,479 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-03 19:57:23,480 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-03 19:57:23,480 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-03 19:57:23,480 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-03 19:57:23,480 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-03 19:57:23,480 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-03 19:57:23,480 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-03 19:57:23,480 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-05-03 19:57:23,574 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:57:23,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:57:23,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1421528455, now seen corresponding path program 1 times [2021-05-03 19:57:23,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:57:23,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712884500] [2021-05-03 19:57:23,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:57:23,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:57:23,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:57:23,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712884500] [2021-05-03 19:57:23,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 19:57:23,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-03 19:57:23,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572769694] [2021-05-03 19:57:23,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-03 19:57:23,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 19:57:23,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-03 19:57:23,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-03 19:57:23,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:57:23,779 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 19:57:23,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-05-03 19:57:23,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:57:23,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:57:23,811 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-03 19:57:23,811 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:57:23,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:57:23,812 INFO L82 PathProgramCache]: Analyzing trace with hash 690038743, now seen corresponding path program 1 times [2021-05-03 19:57:23,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:57:23,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200655498] [2021-05-03 19:57:23,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:57:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:57:23,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 19:57:23,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200655498] [2021-05-03 19:57:23,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 19:57:23,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-03 19:57:23,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175087849] [2021-05-03 19:57:23,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-03 19:57:23,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 19:57:23,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-03 19:57:23,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-03 19:57:23,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:57:23,875 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 19:57:23,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-05-03 19:57:23,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:57:23,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:57:23,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:57:23,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 19:57:23,936 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-03 19:57:23,937 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:57:23,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:57:23,937 INFO L82 PathProgramCache]: Analyzing trace with hash 2139358133, now seen corresponding path program 1 times [2021-05-03 19:57:23,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:57:23,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791500342] [2021-05-03 19:57:23,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:57:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:57:24,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:57:24,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791500342] [2021-05-03 19:57:24,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430896197] [2021-05-03 19:57:24,261 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 [2021-05-03 19:57:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:57:24,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjunts are in the unsatisfiable core [2021-05-03 19:57:24,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 19:57:24,636 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-05-03 19:57:24,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 66 [2021-05-03 19:57:24,647 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 19:57:24,655 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:57:24,663 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-05-03 19:57:24,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 46 [2021-05-03 19:57:24,671 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 19:57:24,677 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:57:24,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 17 treesize of output 9 [2021-05-03 19:57:24,685 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 19:57:24,689 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:57:24,691 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-05-03 19:57:24,692 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:75, output treesize:3 [2021-05-03 19:57:24,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:57:24,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 19:57:24,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-05-03 19:57:24,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480757857] [2021-05-03 19:57:24,732 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-03 19:57:24,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 19:57:24,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-03 19:57:24,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-05-03 19:57:24,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:57:24,733 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 19:57:24,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 12 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) [2021-05-03 19:57:24,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:57:24,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 19:57:24,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:57:24,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:57:24,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 19:57:24,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 19:57:25,153 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 19:57:25,153 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:57:25,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:57:25,153 INFO L82 PathProgramCache]: Analyzing trace with hash 428481043, now seen corresponding path program 2 times [2021-05-03 19:57:25,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:57:25,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310371068] [2021-05-03 19:57:25,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:57:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:57:25,242 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:57:25,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310371068] [2021-05-03 19:57:25,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068795027] [2021-05-03 19:57:25,243 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 19:57:25,282 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 19:57:25,282 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 19:57:25,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-05-03 19:57:25,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 19:57:25,413 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:57:25,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 19:57:25,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-05-03 19:57:25,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405917613] [2021-05-03 19:57:25,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-03 19:57:25,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 19:57:25,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-03 19:57:25,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-05-03 19:57:25,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:57:25,415 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 19:57:25,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 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) [2021-05-03 19:57:25,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:57:25,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 19:57:25,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 19:57:25,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:57:25,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:57:25,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 19:57:25,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 19:57:25,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 19:57:25,856 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 19:57:25,856 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:57:25,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:57:25,857 INFO L82 PathProgramCache]: Analyzing trace with hash -59020201, now seen corresponding path program 1 times [2021-05-03 19:57:25,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:57:25,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870074735] [2021-05-03 19:57:25,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:57:25,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:57:25,925 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 19:57:25,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870074735] [2021-05-03 19:57:25,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126263005] [2021-05-03 19:57:25,926 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 [2021-05-03 19:57:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:57:25,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-05-03 19:57:25,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 19:57:26,083 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 19:57:26,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 19:57:26,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-05-03 19:57:26,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679533738] [2021-05-03 19:57:26,084 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-03 19:57:26,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 19:57:26,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-03 19:57:26,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-05-03 19:57:26,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:57:26,086 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 19:57:26,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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) [2021-05-03 19:57:26,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:57:26,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 19:57:26,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 19:57:26,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 19:57:26,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:57:26,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:57:26,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 19:57:26,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 19:57:26,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 19:57:26,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:57:26,412 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 19:57:26,412 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:57:26,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:57:26,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1348287435, now seen corresponding path program 2 times [2021-05-03 19:57:26,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:57:26,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086566965] [2021-05-03 19:57:26,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:57:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:57:26,787 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:57:26,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086566965] [2021-05-03 19:57:26,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580047879] [2021-05-03 19:57:26,787 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 [2021-05-03 19:57:26,825 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 19:57:26,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 19:57:26,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 35 conjunts are in the unsatisfiable core [2021-05-03 19:57:26,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 19:57:27,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:57:27,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:57:27,250 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 19:57:27,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 49 [2021-05-03 19:57:27,258 INFO L550 ElimStorePlain]: Start of recursive call 2: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-05-03 19:57:27,268 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:57:27,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:57:27,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:57:27,273 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 19:57:27,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2021-05-03 19:57:27,279 INFO L550 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-05-03 19:57:27,287 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:57:27,307 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:57:27,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 49 [2021-05-03 19:57:27,371 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 19:57:27,414 INFO L628 ElimStorePlain]: treesize reduction 56, result has 36.4 percent of original size [2021-05-03 19:57:27,419 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-05-03 19:57:27,419 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:67, output treesize:3 [2021-05-03 19:57:27,452 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:57:27,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 19:57:27,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 23 [2021-05-03 19:57:27,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84306015] [2021-05-03 19:57:27,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-03 19:57:27,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 19:57:27,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-03 19:57:27,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2021-05-03 19:57:27,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:57:27,455 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 19:57:27,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.217391304347826) internal successors, (51), 23 states have internal predecessors, (51), 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) [2021-05-03 19:57:27,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:57:27,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 19:57:27,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 19:57:27,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 19:57:27,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:57:27,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:57:28,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:57:28,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 19:57:28,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 19:57:28,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 19:57:28,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:57:28,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 19:57:28,332 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-05-03 19:57:28,333 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:57:28,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:57:28,334 INFO L82 PathProgramCache]: Analyzing trace with hash 911449235, now seen corresponding path program 3 times [2021-05-03 19:57:28,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:57:28,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753109865] [2021-05-03 19:57:28,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:57:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:57:28,462 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:57:28,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753109865] [2021-05-03 19:57:28,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42635926] [2021-05-03 19:57:28,463 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 [2021-05-03 19:57:28,502 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-05-03 19:57:28,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 19:57:28,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 19:57:28,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 19:57:28,691 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:57:28,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 19:57:28,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-05-03 19:57:28,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685703207] [2021-05-03 19:57:28,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-03 19:57:28,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 19:57:28,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-03 19:57:28,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-05-03 19:57:28,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:57:28,693 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 19:57:28,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 states have internal predecessors, (51), 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) [2021-05-03 19:57:28,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:57:28,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 19:57:28,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 19:57:28,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 19:57:28,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:57:28,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-05-03 19:57:28,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:57:29,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:57:29,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 19:57:29,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 19:57:29,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 19:57:29,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:57:29,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 19:57:29,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-03 19:57:29,360 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 19:57:29,361 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:57:29,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:57:29,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1145065769, now seen corresponding path program 4 times [2021-05-03 19:57:29,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:57:29,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161683867] [2021-05-03 19:57:29,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:57:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:57:29,451 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 19:57:29,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161683867] [2021-05-03 19:57:29,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118323928] [2021-05-03 19:57:29,452 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 [2021-05-03 19:57:29,482 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 19:57:29,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 19:57:29,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 19:57:29,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 19:57:29,641 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 19:57:29,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 19:57:29,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-05-03 19:57:29,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940348643] [2021-05-03 19:57:29,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-03 19:57:29,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 19:57:29,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-03 19:57:29,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-05-03 19:57:29,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:57:29,643 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 19:57:29,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 19:57:29,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:57:29,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 19:57:29,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 19:57:29,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 19:57:29,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:57:29,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-05-03 19:57:29,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-05-03 19:57:29,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:57:29,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:57:29,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 19:57:29,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 19:57:29,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 19:57:29,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:57:29,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 19:57:29,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-03 19:57:29,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 19:57:30,001 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 19:57:30,002 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:57:30,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:57:30,002 INFO L82 PathProgramCache]: Analyzing trace with hash 754469045, now seen corresponding path program 5 times [2021-05-03 19:57:30,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:57:30,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742577390] [2021-05-03 19:57:30,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:57:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:57:30,553 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:57:30,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742577390] [2021-05-03 19:57:30,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659705045] [2021-05-03 19:57:30,554 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 [2021-05-03 19:57:30,590 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-05-03 19:57:30,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 19:57:30,592 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-05-03 19:57:30,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 19:57:38,695 WARN L205 SmtUtils]: Spent 879.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-05-03 19:57:39,262 WARN L205 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-05-03 19:57:40,633 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 44 [2021-05-03 19:57:41,067 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-05-03 19:57:41,131 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 19:57:41,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:57:41,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:57:41,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:57:41,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:57:41,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 77 [2021-05-03 19:57:41,140 INFO L550 ElimStorePlain]: Start of recursive call 2: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-05-03 19:57:41,152 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:57:41,154 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 19:57:41,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:57:41,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:57:41,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:57:41,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:57:41,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 57 [2021-05-03 19:57:41,163 INFO L550 ElimStorePlain]: Start of recursive call 3: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-05-03 19:57:41,172 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:57:41,234 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:57:41,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 137 [2021-05-03 19:57:41,854 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 257 [2021-05-03 19:57:42,015 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 257 [2021-05-03 19:57:42,559 WARN L205 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 305 [2021-05-03 19:57:43,549 WARN L205 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 346 [2021-05-03 19:57:43,704 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 296 DAG size of output: 263 [2021-05-03 19:57:43,839 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 258 [2021-05-03 19:57:44,335 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 300 [2021-05-03 19:57:45,136 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 346 [2021-05-03 19:57:45,413 INFO L550 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-05-03 19:57:47,753 WARN L205 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 263 DAG size of output: 247 [2021-05-03 19:57:47,754 INFO L628 ElimStorePlain]: treesize reduction 9280, result has 67.7 percent of original size [2021-05-03 19:57:49,282 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-05-03 19:57:49,282 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:106, output treesize:3 [2021-05-03 19:57:49,310 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:57:49,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 19:57:49,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2021-05-03 19:57:49,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721415935] [2021-05-03 19:57:49,313 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-03 19:57:49,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 19:57:49,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-03 19:57:49,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=741, Unknown=4, NotChecked=0, Total=870 [2021-05-03 19:57:49,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:57:49,314 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 19:57:49,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.2333333333333334) internal successors, (67), 30 states have internal predecessors, (67), 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) [2021-05-03 19:57:49,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:57:49,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 19:57:49,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 19:57:49,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 19:57:49,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:57:49,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-05-03 19:57:49,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-05-03 19:57:49,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-05-03 19:57:49,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:56,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:56,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 19:58:56,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 19:58:56,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 19:58:56,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:58:56,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 19:58:56,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-03 19:58:56,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 19:58:56,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-03 19:58:57,125 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-05-03 19:58:57,126 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:58:57,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:58:57,126 INFO L82 PathProgramCache]: Analyzing trace with hash -127394481, now seen corresponding path program 6 times [2021-05-03 19:58:57,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:58:57,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864560327] [2021-05-03 19:58:57,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:58:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:58:57,268 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:58:57,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864560327] [2021-05-03 19:58:57,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730375763] [2021-05-03 19:58:57,269 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 [2021-05-03 19:58:57,315 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-05-03 19:58:57,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 19:58:57,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 16 conjunts are in the unsatisfiable core [2021-05-03 19:58:57,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 19:58:57,630 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:58:57,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 19:58:57,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 29 [2021-05-03 19:58:57,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512126698] [2021-05-03 19:58:57,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-05-03 19:58:57,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 19:58:57,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-05-03 19:58:57,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2021-05-03 19:58:57,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:57,634 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 19:58:57,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.3793103448275863) internal successors, (69), 29 states have internal predecessors, (69), 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) [2021-05-03 19:58:57,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:57,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 19:58:57,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 19:58:57,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 19:58:57,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:58:57,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-05-03 19:58:57,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-05-03 19:58:57,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-05-03 19:58:57,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-03 19:58:57,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:57,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:57,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 19:58:57,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 19:58:57,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 19:58:57,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:58:57,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 19:58:57,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-03 19:58:57,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 19:58:57,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-03 19:58:57,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-03 19:58:58,076 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable519,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 19:58:58,077 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:58:58,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:58:58,078 INFO L82 PathProgramCache]: Analyzing trace with hash 726661421, now seen corresponding path program 7 times [2021-05-03 19:58:58,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:58:58,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141592624] [2021-05-03 19:58:58,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:58:58,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:58:58,961 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 1 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:58:58,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141592624] [2021-05-03 19:58:58,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18627791] [2021-05-03 19:58:58,963 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 [2021-05-03 19:58:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:58:59,009 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 65 conjunts are in the unsatisfiable core [2021-05-03 19:58:59,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 19:58:59,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:58:59,906 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 19:58:59,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:58:59,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:58:59,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:58:59,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:58:59,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:58:59,911 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 19:58:59,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:58:59,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:58:59,913 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 19:58:59,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 21 disjoint index pairs (out of 45 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 109 [2021-05-03 19:58:59,918 INFO L550 ElimStorePlain]: Start of recursive call 2: 7 dim-0 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-05-03 19:58:59,931 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:58:59,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:58:59,934 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 19:58:59,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:58:59,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:58:59,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:58:59,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:58:59,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:58:59,939 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 19:58:59,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:58:59,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:58:59,941 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 19:58:59,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 21 disjoint index pairs (out of 45 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 77 [2021-05-03 19:58:59,946 INFO L550 ElimStorePlain]: Start of recursive call 3: 7 dim-0 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-05-03 19:58:59,957 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:59:00,124 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-05-03 19:59:00,124 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:59:00,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 77 treesize of output 273 [2021-05-03 19:59:00,335 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 178 [2021-05-03 19:59:00,528 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 202 [2021-05-03 19:59:00,802 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 223 [2021-05-03 19:59:01,145 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 223 [2021-05-03 19:59:01,475 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 245 [2021-05-03 19:59:02,282 WARN L205 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 248 [2021-05-03 19:59:02,989 WARN L205 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 257 [2021-05-03 19:59:03,653 WARN L205 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 247 [2021-05-03 19:59:03,868 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 218 [2021-05-03 19:59:03,993 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 201 [2021-05-03 19:59:04,424 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 300 [2021-05-03 19:59:04,689 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 390 DAG size of output: 350 [2021-05-03 19:59:05,234 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 458 DAG size of output: 404 [2021-05-03 19:59:06,165 WARN L205 SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 530 DAG size of output: 458 [2021-05-03 19:59:08,357 WARN L205 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 615 DAG size of output: 533 [2021-05-03 19:59:12,942 WARN L205 SmtUtils]: Spent 4.58 s on a formula simplification. DAG size of input: 701 DAG size of output: 614 [2021-05-03 19:59:22,884 WARN L205 SmtUtils]: Spent 9.94 s on a formula simplification. DAG size of input: 767 DAG size of output: 677 [2021-05-03 19:59:32,540 WARN L205 SmtUtils]: Spent 9.65 s on a formula simplification. DAG size of input: 767 DAG size of output: 677 [2021-05-03 19:59:42,646 WARN L205 SmtUtils]: Spent 10.10 s on a formula simplification. DAG size of input: 784 DAG size of output: 694 [2021-05-03 19:59:51,443 WARN L205 SmtUtils]: Spent 8.79 s on a formula simplification. DAG size of input: 674 DAG size of output: 673 [2021-05-03 19:59:55,439 WARN L205 SmtUtils]: Spent 3.99 s on a formula simplification. DAG size of input: 610 DAG size of output: 610 [2021-05-03 19:59:55,982 WARN L205 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 234 [2021-05-03 19:59:56,522 WARN L205 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 222 [2021-05-03 19:59:57,059 WARN L205 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 220 [2021-05-03 19:59:57,594 WARN L205 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 219 [2021-05-03 19:59:58,677 WARN L205 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 452 DAG size of output: 414 [2021-05-03 20:00:00,717 WARN L205 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 522 DAG size of output: 479 [2021-05-03 20:00:05,240 WARN L205 SmtUtils]: Spent 4.52 s on a formula simplification. DAG size of input: 581 DAG size of output: 537 [2021-05-03 20:00:15,253 WARN L205 SmtUtils]: Spent 10.01 s on a formula simplification. DAG size of input: 592 DAG size of output: 548 [2021-05-03 20:00:17,134 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 534 DAG size of output: 534 [2021-05-03 20:00:17,914 WARN L205 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 463 [2021-05-03 20:00:19,226 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 418 DAG size of output: 454 [2021-05-03 20:00:20,395 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 413 DAG size of output: 444 [2021-05-03 20:00:20,762 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 405 [2021-05-03 20:00:21,095 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 296 [2021-05-03 20:00:21,389 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 331 [2021-05-03 20:00:21,542 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 351 [2021-05-03 20:00:22,253 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 439 DAG size of output: 417 [2021-05-03 20:00:22,768 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 612 DAG size of output: 584 [2021-05-03 20:00:23,581 WARN L205 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 732 DAG size of output: 691 [2021-05-03 20:00:25,519 WARN L205 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 936 DAG size of output: 878 [2021-05-03 20:00:30,111 WARN L205 SmtUtils]: Spent 4.58 s on a formula simplification. DAG size of input: 1134 DAG size of output: 1067 [2021-05-03 20:00:40,646 WARN L205 SmtUtils]: Spent 10.53 s on a formula simplification. DAG size of input: 1292 DAG size of output: 1222 [2021-05-03 20:00:41,087 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 264 [2021-05-03 20:00:41,352 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 313 [2021-05-03 20:00:41,943 WARN L205 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 406 DAG size of output: 367 [2021-05-03 20:00:43,148 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 415 DAG size of output: 376 [2021-05-03 20:01:06,214 WARN L205 SmtUtils]: Spent 23.06 s on a formula simplification. DAG size of input: 1504 DAG size of output: 1417 [2021-05-03 20:01:06,823 WARN L205 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 233 [2021-05-03 20:01:07,459 WARN L205 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 221 [2021-05-03 20:01:07,645 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 201 [2021-05-03 20:01:07,917 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 204 [2021-05-03 20:01:08,214 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 199 [2021-05-03 20:01:08,769 WARN L205 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 390 DAG size of output: 354 [2021-05-03 20:01:09,836 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 452 DAG size of output: 412 [2021-05-03 20:01:12,193 WARN L205 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 527 DAG size of output: 467 [2021-05-03 20:01:17,293 WARN L205 SmtUtils]: Spent 5.10 s on a formula simplification. DAG size of input: 584 DAG size of output: 523 [2021-05-03 20:01:28,292 WARN L205 SmtUtils]: Spent 10.99 s on a formula simplification. DAG size of input: 598 DAG size of output: 537 [2021-05-03 20:02:33,831 WARN L205 SmtUtils]: Spent 1.09 m on a formula simplification. DAG size of input: 1872 DAG size of output: 1747 [2021-05-03 20:04:52,556 WARN L205 SmtUtils]: Spent 2.31 m on a formula simplification. DAG size of input: 2223 DAG size of output: 2078 [2021-05-03 20:04:52,782 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 212 [2021-05-03 20:04:53,143 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 184 [2021-05-03 20:04:53,462 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 215 [2021-05-03 20:04:54,157 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 346 [2021-05-03 20:04:54,706 WARN L205 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 394 [2021-05-03 20:04:55,808 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 478 DAG size of output: 446 [2021-05-03 20:04:58,287 WARN L205 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 549 DAG size of output: 505 [2021-05-03 20:05:03,485 WARN L205 SmtUtils]: Spent 5.19 s on a formula simplification. DAG size of input: 571 DAG size of output: 526 [2021-05-03 20:05:14,621 WARN L205 SmtUtils]: Spent 11.13 s on a formula simplification. DAG size of input: 661 DAG size of output: 602 [2021-05-03 20:10:19,804 WARN L205 SmtUtils]: Spent 5.09 m on a formula simplification. DAG size of input: 2580 DAG size of output: 2421 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown