/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-bad/dot-product-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 11:07:59,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 11:07:59,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 11:07:59,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 11:07:59,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-06 11:07:59,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-06 11:07:59,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-06 11:07:59,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-06 11:07:59,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-06 11:07:59,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-06 11:07:59,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-06 11:07:59,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-06 11:07:59,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-06 11:07:59,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-06 11:07:59,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-06 11:07:59,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-06 11:07:59,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-06 11:07:59,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-06 11:07:59,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-06 11:07:59,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-06 11:07:59,561 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 [2021-06-06 11:07:59,595 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 11:07:59,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 11:07:59,596 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 11:07:59,596 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 11:07:59,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 11:07:59,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 11:07:59,598 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 11:07:59,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 11:07:59,599 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 11:07:59,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 11:07:59,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 11:07:59,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 11:07:59,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 11:07:59,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 11:07:59,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 11:07:59,600 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 11:07:59,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 11:07:59,600 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 11:07:59,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 11:07:59,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 11:07:59,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 11:07:59,601 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 11:07:59,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 11:07:59,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 11:07:59,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 11:07:59,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 11:07:59,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 11:07:59,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 11:07:59,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 11:07:59,602 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 11:07:59,602 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 11:07:59,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 11:07:59,602 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 11:07:59,602 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 11:07:59,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 11:07:59,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 11:07:59,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 11:07:59,912 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 11:07:59,913 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 11:07:59,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl [2021-06-06 11:07:59,914 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl' [2021-06-06 11:07:59,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 11:07:59,943 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 11:07:59,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 11:07:59,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 11:07:59,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 11:07:59,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:07:59" (1/1) ... [2021-06-06 11:07:59,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:07:59" (1/1) ... [2021-06-06 11:07:59,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 11:07:59,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 11:07:59,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 11:07:59,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 11:07:59,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:07:59" (1/1) ... [2021-06-06 11:07:59,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:07:59" (1/1) ... [2021-06-06 11:07:59,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:07:59" (1/1) ... [2021-06-06 11:07:59,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:07:59" (1/1) ... [2021-06-06 11:07:59,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:07:59" (1/1) ... [2021-06-06 11:07:59,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:07:59" (1/1) ... [2021-06-06 11:07:59,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:07:59" (1/1) ... [2021-06-06 11:07:59,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 11:07:59,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 11:07:59,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 11:07:59,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 11:07:59,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:07:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 11:08:00,059 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 11:08:00,060 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 11:08:00,060 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 11:08:00,060 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 11:08:00,060 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 11:08:00,060 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 11:08:00,060 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 11:08:00,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 11:08:00,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 11:08:00,061 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-06 11:08:00,061 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-06 11:08:00,061 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-06 11:08:00,062 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 11:08:00,215 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 11:08:00,215 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 11:08:00,216 INFO L202 PluginConnector]: Adding new model dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 11:08:00 BoogieIcfgContainer [2021-06-06 11:08:00,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 11:08:00,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 11:08:00,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 11:08:00,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 11:08:00,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:07:59" (1/2) ... [2021-06-06 11:08:00,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@801e891 and model type dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 11:08:00, skipping insertion in model container [2021-06-06 11:08:00,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 11:08:00" (2/2) ... [2021-06-06 11:08:00,223 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product-alt.wvr.bpl [2021-06-06 11:08:00,227 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 11:08:00,227 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 11:08:00,227 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 11:08:00,228 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 11:08:00,259 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-06 11:08:00,278 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-06 11:08:00,355 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 11:08:00,355 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 11:08:00,356 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 11:08:00,356 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 11:08:00,356 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 11:08:00,356 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 11:08:00,356 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 11:08:00,356 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 11:08:00,482 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:08:00,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:08:00,486 INFO L82 PathProgramCache]: Analyzing trace with hash -837472812, now seen corresponding path program 1 times [2021-06-06 11:08:00,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:08:00,495 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492622517] [2021-06-06 11:08:00,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:08:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:08:00,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:08:00,673 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:08:00,673 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492622517] [2021-06-06 11:08:00,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492622517] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 11:08:00,674 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 11:08:00,674 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-06 11:08:00,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511121268] [2021-06-06 11:08:00,678 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 11:08:00,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:08:00,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 11:08:00,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 11:08:00,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:08:00,693 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:08:00,697 INFO L483 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) [2021-06-06 11:08:00,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:08:00,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:08:00,735 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 11:08:00,735 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:08:00,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:08:00,738 INFO L82 PathProgramCache]: Analyzing trace with hash 482321657, now seen corresponding path program 1 times [2021-06-06 11:08:00,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:08:00,740 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563984] [2021-06-06 11:08:00,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:08:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:08:00,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 11:08:00,811 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:08:00,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563984] [2021-06-06 11:08:00,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563984] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 11:08:00,812 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 11:08:00,813 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 11:08:00,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600194921] [2021-06-06 11:08:00,815 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 11:08:00,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:08:00,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 11:08:00,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-06 11:08:00,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:08:00,820 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:08:00,820 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 11:08:00,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:08:00,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:08:00,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:08:00,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:08:00,895 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-06 11:08:00,895 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:08:00,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:08:00,896 INFO L82 PathProgramCache]: Analyzing trace with hash -850517330, now seen corresponding path program 1 times [2021-06-06 11:08:00,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:08:00,896 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692957717] [2021-06-06 11:08:00,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:08:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:08:01,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:08:01,267 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:08:01,267 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692957717] [2021-06-06 11:08:01,267 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692957717] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:08:01,267 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953609903] [2021-06-06 11:08:01,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:08:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:08:01,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-06 11:08:01,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:08:01,499 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:08:01,513 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-06-06 11:08:01,517 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-06 11:08:01,523 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:08:01,525 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:08:01,526 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-06-06 11:08:01,530 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-06 11:08:01,536 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:08:01,538 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 15 treesize of output 7 [2021-06-06 11:08:01,540 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 11:08:01,544 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:08:01,559 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. [2021-06-06 11:08:01,560 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:29, output treesize:3 [2021-06-06 11:08:01,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:08:01,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953609903] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:08:01,588 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:08:01,588 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-06-06 11:08:01,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390105066] [2021-06-06 11:08:01,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-06 11:08:01,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:08:01,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-06 11:08:01,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-06-06 11:08:01,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:08:01,590 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:08:01,590 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 11:08:01,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:08:01,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:08:01,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:08:01,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:08:01,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:08:01,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 11:08:01,969 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:08:01,969 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:08:01,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:08:01,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1622545901, now seen corresponding path program 2 times [2021-06-06 11:08:01,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:08:01,970 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917728699] [2021-06-06 11:08:01,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:08:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:08:02,034 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:08:02,035 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:08:02,035 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917728699] [2021-06-06 11:08:02,035 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917728699] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:08:02,035 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733124591] [2021-06-06 11:08:02,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:08:02,074 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 11:08:02,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 11:08:02,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 11:08:02,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:08:02,167 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:08:02,167 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733124591] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:08:02,168 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:08:02,168 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-06-06 11:08:02,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041406466] [2021-06-06 11:08:02,168 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-06 11:08:02,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:08:02,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-06 11:08:02,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-06 11:08:02,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:08:02,170 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:08:02,170 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 11:08:02,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:08:02,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:08:02,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 11:08:02,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:08:02,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:08:02,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:08:02,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 11:08:02,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:08:02,569 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:08:02,569 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:08:02,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:08:02,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1276293331, now seen corresponding path program 1 times [2021-06-06 11:08:02,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:08:02,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89598795] [2021-06-06 11:08:02,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:08:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:08:02,639 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 11:08:02,640 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:08:02,640 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89598795] [2021-06-06 11:08:02,640 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89598795] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:08:02,640 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888794988] [2021-06-06 11:08:02,640 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 [2021-06-06 11:08:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:08:02,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 11:08:02,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:08:02,763 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 11:08:02,763 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888794988] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:08:02,763 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:08:02,764 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-06 11:08:02,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508085698] [2021-06-06 11:08:02,764 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-06 11:08:02,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:08:02,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-06 11:08:02,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-06-06 11:08:02,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:08:02,765 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:08:02,765 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 11:08:02,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:08:02,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:08:02,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 11:08:02,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:08:02,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:08:02,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:08:02,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:08:02,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 11:08:02,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:08:02,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:08:03,111 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:08:03,112 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:08:03,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:08:03,112 INFO L82 PathProgramCache]: Analyzing trace with hash -60790002, now seen corresponding path program 2 times [2021-06-06 11:08:03,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:08:03,112 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973175308] [2021-06-06 11:08:03,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:08:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:08:03,685 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:08:03,685 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:08:03,685 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973175308] [2021-06-06 11:08:03,685 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973175308] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:08:03,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518122886] [2021-06-06 11:08:03,686 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 [2021-06-06 11:08:03,721 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 11:08:03,721 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 11:08:03,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-06-06 11:08:03,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:08:09,660 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:08:09,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:08:09,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:08:09,663 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 [2021-06-06 11:08:09,667 INFO L550 ElimStorePlain]: Start of recursive call 2: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-06-06 11:08:09,678 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:08:09,681 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:08:09,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:08:09,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:08:09,683 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 [2021-06-06 11:08:09,687 INFO L550 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-06-06 11:08:09,698 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:08:09,718 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:08:09,719 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 [2021-06-06 11:08:09,747 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 11:08:09,818 INFO L628 ElimStorePlain]: treesize reduction 68, result has 35.2 percent of original size [2021-06-06 11:08:09,823 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. [2021-06-06 11:08:09,823 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:70, output treesize:3 [2021-06-06 11:08:09,857 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:08:09,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518122886] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:08:09,858 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:08:09,858 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2021-06-06 11:08:09,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346051995] [2021-06-06 11:08:09,859 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-06 11:08:09,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:08:09,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-06 11:08:09,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=737, Unknown=4, NotChecked=0, Total=870 [2021-06-06 11:08:09,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:08:09,860 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:08:09,860 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.066666666666667) internal successors, (62), 30 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 11:08:09,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:08:09,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:08:09,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 11:08:09,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:08:09,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:08:09,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:08:40,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:08:40,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:08:40,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 11:08:40,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:08:40,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:08:40,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 11:08:40,816 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-06 11:08:40,817 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:08:40,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:08:40,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1583660301, now seen corresponding path program 3 times [2021-06-06 11:08:40,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:08:40,818 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984425027] [2021-06-06 11:08:40,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:08:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:08:40,910 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:08:40,910 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:08:40,910 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984425027] [2021-06-06 11:08:40,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984425027] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:08:40,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206599355] [2021-06-06 11:08:40,911 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 [2021-06-06 11:08:40,986 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-06 11:08:40,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 11:08:40,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-06 11:08:40,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:08:41,200 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:08:41,201 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206599355] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:08:41,201 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:08:41,201 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-06-06 11:08:41,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856236355] [2021-06-06 11:08:41,202 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-06 11:08:41,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:08:41,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-06 11:08:41,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-06-06 11:08:41,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:08:41,203 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:08:41,203 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 11:08:41,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:08:41,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:08:41,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 11:08:41,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:08:41,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:08:41,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 11:08:41,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:08:41,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:08:41,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:08:41,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 11:08:41,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:08:41,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:08:41,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 11:08:41,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 11:08:41,933 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:08:41,933 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:08:41,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:08:41,933 INFO L82 PathProgramCache]: Analyzing trace with hash -76160589, now seen corresponding path program 4 times [2021-06-06 11:08:41,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:08:41,936 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749476094] [2021-06-06 11:08:41,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:08:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:08:42,041 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 11:08:42,041 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:08:42,041 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749476094] [2021-06-06 11:08:42,041 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749476094] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:08:42,041 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174440333] [2021-06-06 11:08:42,041 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 [2021-06-06 11:08:42,072 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 11:08:42,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 11:08:42,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-06 11:08:42,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:08:42,213 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 11:08:42,214 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174440333] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:08:42,214 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:08:42,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-06-06 11:08:42,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901625220] [2021-06-06 11:08:42,215 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-06 11:08:42,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:08:42,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-06 11:08:42,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-06-06 11:08:42,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:08:42,216 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:08:42,216 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 17 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 11:08:42,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:08:42,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:08:42,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 11:08:42,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:08:42,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:08:42,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 11:08:42,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 11:08:42,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:08:42,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:08:42,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:08:42,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 11:08:42,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:08:42,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:08:42,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 11:08:42,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 11:08:42,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 11:08:42,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:08:42,617 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:08:42,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:08:42,618 INFO L82 PathProgramCache]: Analyzing trace with hash -886105234, now seen corresponding path program 5 times [2021-06-06 11:08:42,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:08:42,618 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248330718] [2021-06-06 11:08:42,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:08:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:08:43,642 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 9 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:08:43,643 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:08:43,643 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248330718] [2021-06-06 11:08:43,643 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248330718] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:08:43,643 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001040334] [2021-06-06 11:08:43,643 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 [2021-06-06 11:08:43,679 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-06 11:08:43,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 11:08:43,680 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-06-06 11:08:43,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:08:44,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:08:44,788 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:08:44,788 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 [2021-06-06 11:08:44,792 INFO L550 ElimStorePlain]: Start of recursive call 2: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-06-06 11:08:44,801 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:08:44,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:08:44,804 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:08:44,806 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 [2021-06-06 11:08:44,810 INFO L550 ElimStorePlain]: Start of recursive call 3: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-06-06 11:08:44,817 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:08:44,866 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:08:44,866 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 [2021-06-06 11:08:45,039 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2021-06-06 11:08:45,146 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2021-06-06 11:08:45,974 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 152 [2021-06-06 11:08:46,477 WARN L205 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 216 [2021-06-06 11:08:47,641 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 285 DAG size of output: 262 [2021-06-06 11:08:48,668 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 285 DAG size of output: 262 [2021-06-06 11:08:52,566 WARN L205 SmtUtils]: Spent 3.89 s on a formula simplification. DAG size of input: 296 DAG size of output: 318 [2021-06-06 11:08:53,004 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 130 [2021-06-06 11:08:53,437 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 151 [2021-06-06 11:08:55,831 WARN L205 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 353 DAG size of output: 333 [2021-06-06 11:08:56,899 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 291 DAG size of output: 268 [2021-06-06 11:08:57,896 WARN L205 SmtUtils]: Spent 995.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 261 [2021-06-06 11:08:59,047 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 264 DAG size of output: 265 [2021-06-06 11:09:00,102 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 263 DAG size of output: 264 [2021-06-06 11:09:03,545 WARN L205 SmtUtils]: Spent 3.44 s on a formula simplification. DAG size of input: 264 DAG size of output: 311 [2021-06-06 11:09:03,927 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 130 [2021-06-06 11:09:04,257 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 151 [2021-06-06 11:09:06,428 WARN L205 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 345 DAG size of output: 321 [2021-06-06 11:09:07,445 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 259 DAG size of output: 261 [2021-06-06 11:09:08,435 WARN L205 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 261 [2021-06-06 11:09:09,572 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 263 DAG size of output: 265 [2021-06-06 11:09:09,575 INFO L550 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-06-06 11:09:11,247 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 264 DAG size of output: 252 [2021-06-06 11:09:11,248 INFO L628 ElimStorePlain]: treesize reduction 1423, result has 94.1 percent of original size [2021-06-06 11:09:12,382 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 253 DAG size of output: 255 [2021-06-06 11:09:13,261 WARN L205 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 244 [2021-06-06 11:09:13,587 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 201 [2021-06-06 11:09:13,885 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-06-06 11:09:14,307 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-06-06 11:09:15,302 WARN L205 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 201 [2021-06-06 11:09:15,583 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-06-06 11:09:16,036 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-06-06 11:09:16,319 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. [2021-06-06 11:09:16,319 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:103, output treesize:3 [2021-06-06 11:09:16,354 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:09:16,354 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001040334] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:09:16,354 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:09:16,355 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 46 [2021-06-06 11:09:16,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700858408] [2021-06-06 11:09:16,355 INFO L462 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-06-06 11:09:16,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:09:16,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-06-06 11:09:16,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1918, Unknown=0, NotChecked=0, Total=2070 [2021-06-06 11:09:16,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:09:16,357 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:09:16,357 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 1.891304347826087) internal successors, (87), 46 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 11:09:16,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:09:16,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:09:16,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 11:09:16,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:09:16,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:09:16,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 11:09:16,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 11:09:16,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 11:09:16,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:09:18,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:09:18,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:09:18,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 11:09:18,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:09:18,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:09:18,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 11:09:18,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 11:09:18,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 11:09:18,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 11:09:19,077 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-06 11:09:19,077 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:09:19,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:09:19,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1387257236, now seen corresponding path program 6 times [2021-06-06 11:09:19,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:09:19,077 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338620049] [2021-06-06 11:09:19,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:09:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:09:20,389 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:09:20,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:09:20,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338620049] [2021-06-06 11:09:20,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338620049] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:09:20,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104777463] [2021-06-06 11:09:20,390 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 [2021-06-06 11:09:20,439 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-06 11:09:20,439 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 11:09:20,440 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 62 conjunts are in the unsatisfiable core [2021-06-06 11:09:20,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:09:22,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:09:22,267 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:09:22,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:09:22,275 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:09:22,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 93 [2021-06-06 11:09:22,283 INFO L550 ElimStorePlain]: Start of recursive call 2: 6 dim-0 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2021-06-06 11:09:22,298 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:09:22,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:09:22,301 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:09:22,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:09:22,303 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:09:22,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 67 [2021-06-06 11:09:22,307 INFO L550 ElimStorePlain]: Start of recursive call 3: 6 dim-0 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2021-06-06 11:09:22,320 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:09:22,409 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:09:22,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 67 treesize of output 199 [2021-06-06 11:09:22,906 WARN L205 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 182 [2021-06-06 11:09:23,296 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 182 [2021-06-06 11:09:23,761 WARN L205 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 199 [2021-06-06 11:09:25,143 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 197 DAG size of output: 217 [2021-06-06 11:09:26,681 WARN L205 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 192 DAG size of output: 204 [2021-06-06 11:09:28,293 WARN L205 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 187 DAG size of output: 199 [2021-06-06 11:09:28,592 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 119 [2021-06-06 11:09:31,136 WARN L205 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 396 DAG size of output: 343 [2021-06-06 11:09:37,670 WARN L205 SmtUtils]: Spent 6.53 s on a formula simplification. DAG size of input: 462 DAG size of output: 405 [2021-06-06 11:09:54,069 WARN L205 SmtUtils]: Spent 16.40 s on a formula simplification. DAG size of input: 530 DAG size of output: 472 [2021-06-06 11:10:11,643 WARN L205 SmtUtils]: Spent 17.57 s on a formula simplification. DAG size of input: 530 DAG size of output: 472 [2021-06-06 11:10:30,106 WARN L205 SmtUtils]: Spent 18.45 s on a formula simplification. DAG size of input: 542 DAG size of output: 484 [2021-06-06 11:11:26,945 WARN L205 SmtUtils]: Spent 56.83 s on a formula simplification. DAG size of input: 484 DAG size of output: 587 [2021-06-06 11:11:42,945 WARN L205 SmtUtils]: Spent 15.99 s on a formula simplification. DAG size of input: 476 DAG size of output: 476 [2021-06-06 11:11:43,203 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 168 [2021-06-06 11:11:43,323 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 132 [2021-06-06 11:11:43,469 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 126 [2021-06-06 11:11:43,617 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 120 [2021-06-06 11:11:43,738 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 155 [2021-06-06 11:11:44,055 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 184 [2021-06-06 11:11:44,266 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 141 [2021-06-06 11:11:44,542 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 162 [2021-06-06 11:11:45,673 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 269 DAG size of output: 260 [2021-06-06 11:11:45,919 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 133 [2021-06-06 11:11:46,192 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 155 [2021-06-06 11:11:46,800 WARN L205 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 179 [2021-06-06 11:11:50,391 WARN L205 SmtUtils]: Spent 3.59 s on a formula simplification. DAG size of input: 386 DAG size of output: 360 [2021-06-06 11:11:57,374 WARN L205 SmtUtils]: Spent 6.98 s on a formula simplification. DAG size of input: 409 DAG size of output: 409 [2021-06-06 11:11:59,771 WARN L205 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 349 DAG size of output: 349 [2021-06-06 11:11:59,918 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 126 [2021-06-06 11:12:00,198 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 158 [2021-06-06 11:12:00,516 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 207 [2021-06-06 11:12:00,712 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 135 [2021-06-06 11:12:01,518 WARN L205 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 266 [2021-06-06 11:12:02,312 WARN L205 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 280 [2021-06-06 11:12:02,541 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 228 [2021-06-06 11:12:03,093 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 292 DAG size of output: 262 [2021-06-06 11:12:03,535 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 226 [2021-06-06 11:12:04,353 WARN L205 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 419 DAG size of output: 385 [2021-06-06 11:12:04,683 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 130 [2021-06-06 11:12:04,892 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 150 [2021-06-06 11:12:07,753 WARN L205 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 531 DAG size of output: 487 [2021-06-06 11:12:12,528 WARN L205 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 2296 DAG size of output: 2269 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown