/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-SemanticLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-13 02:55:04,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-13 02:55:04,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-13 02:55:04,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-13 02:55:04,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-13 02:55:04,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-13 02:55:04,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-13 02:55:04,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-13 02:55:04,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-13 02:55:04,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-13 02:55:04,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-13 02:55:04,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-13 02:55:04,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-13 02:55:04,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-13 02:55:04,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-13 02:55:04,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-13 02:55:04,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-13 02:55:04,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-13 02:55:04,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-13 02:55:04,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-13 02:55:04,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-13 02:55:04,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-13 02:55:04,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-13 02:55:04,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-13 02:55:04,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-13 02:55:04,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-13 02:55:04,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-13 02:55:04,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-13 02:55:04,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-13 02:55:04,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-13 02:55:04,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-13 02:55:04,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-13 02:55:04,491 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-13 02:55:04,492 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-13 02:55:04,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-13 02:55:04,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-13 02:55:04,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-13 02:55:04,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-13 02:55:04,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-13 02:55:04,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-13 02:55:04,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-13 02:55:04,494 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-SemanticLbe-Delay.epf [2021-03-13 02:55:04,522 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-13 02:55:04,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-13 02:55:04,522 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-13 02:55:04,522 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-13 02:55:04,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-13 02:55:04,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-13 02:55:04,525 INFO L138 SettingsManager]: * Use SBE=true [2021-03-13 02:55:04,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-13 02:55:04,525 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-13 02:55:04,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-13 02:55:04,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-13 02:55:04,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-13 02:55:04,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-13 02:55:04,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-13 02:55:04,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-13 02:55:04,526 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-13 02:55:04,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-13 02:55:04,526 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-13 02:55:04,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-13 02:55:04,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-13 02:55:04,527 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-13 02:55:04,527 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-13 02:55:04,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-13 02:55:04,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-13 02:55:04,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-13 02:55:04,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-13 02:55:04,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-13 02:55:04,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-13 02:55:04,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-13 02:55:04,527 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-13 02:55:04,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-13 02:55:04,528 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-03-13 02:55:04,528 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-13 02:55:04,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-13 02:55:04,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-13 02:55:04,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-13 02:55:04,840 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-13 02:55:04,842 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-13 02:55:04,843 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq.wvr.bpl [2021-03-13 02:55:04,993 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq.wvr.bpl' [2021-03-13 02:55:05,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-13 02:55:05,603 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-13 02:55:05,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-13 02:55:05,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-13 02:55:05,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-13 02:55:05,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:55:05" (1/1) ... [2021-03-13 02:55:05,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:55:05" (1/1) ... [2021-03-13 02:55:05,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-13 02:55:05,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-13 02:55:05,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-13 02:55:05,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-13 02:55:05,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:55:05" (1/1) ... [2021-03-13 02:55:05,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:55:05" (1/1) ... [2021-03-13 02:55:05,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:55:05" (1/1) ... [2021-03-13 02:55:05,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:55:05" (1/1) ... [2021-03-13 02:55:05,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:55:05" (1/1) ... [2021-03-13 02:55:05,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:55:05" (1/1) ... [2021-03-13 02:55:05,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:55:05" (1/1) ... [2021-03-13 02:55:05,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-13 02:55:05,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-13 02:55:05,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-13 02:55:05,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-13 02:55:05,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:55:05" (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 [2021-03-13 02:55:05,686 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-13 02:55:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-13 02:55:05,686 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-13 02:55:05,686 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-13 02:55:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-13 02:55:05,687 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-13 02:55:05,687 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-13 02:55:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-13 02:55:05,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-13 02:55:05,688 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-13 02:55:05,819 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-13 02:55:05,819 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-13 02:55:05,820 INFO L202 PluginConnector]: Adding new model inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.03 02:55:05 BoogieIcfgContainer [2021-03-13 02:55:05,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-13 02:55:05,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-13 02:55:05,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-13 02:55:05,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-13 02:55:05,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:55:05" (1/2) ... [2021-03-13 02:55:05,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e222280 and model type inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 02:55:05, skipping insertion in model container [2021-03-13 02:55:05,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.03 02:55:05" (2/2) ... [2021-03-13 02:55:05,829 INFO L111 eAbstractionObserver]: Analyzing ICFG inc-subseq.wvr.bpl [2021-03-13 02:55:05,833 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-13 02:55:05,833 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-13 02:55:05,835 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-13 02:55:05,836 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-13 02:55:05,866 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-13 02:55:05,884 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 02:55:05,939 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 02:55:05,939 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 02:55:05,939 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 02:55:05,939 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 02:55:05,939 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 02:55:05,939 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 02:55:05,939 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 02:55:05,939 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 02:55:05,945 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 02:55:05,945 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 28 transitions, 72 flow [2021-03-13 02:55:05,953 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 28 transitions, 72 flow [2021-03-13 02:55:05,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 28 transitions, 72 flow [2021-03-13 02:55:05,977 INFO L129 PetriNetUnfolder]: 3/26 cut-off events. [2021-03-13 02:55:05,977 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-13 02:55:05,979 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 26 events. 3/26 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 41 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 17. Up to 2 conditions per place. [2021-03-13 02:55:05,980 INFO L116 LiptonReduction]: Number of co-enabled transitions 124 [2021-03-13 02:55:06,487 INFO L131 LiptonReduction]: Checked pairs total: 171 [2021-03-13 02:55:06,488 INFO L133 LiptonReduction]: Total number of compositions: 15 [2021-03-13 02:55:06,560 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:55:06,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:55:06,566 INFO L82 PathProgramCache]: Analyzing trace with hash 804708578, now seen corresponding path program 1 times [2021-03-13 02:55:06,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:55:06,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692969151] [2021-03-13 02:55:06,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:55:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:55:06,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:55:06,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692969151] [2021-03-13 02:55:06,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 02:55:06,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-13 02:55:06,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723134094] [2021-03-13 02:55:06,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-13 02:55:06,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:55:06,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-13 02:55:06,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-13 02:55:06,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:55:06,679 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:55:06,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-03-13 02:55:06,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:55:06,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:55:06,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-13 02:55:06,720 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:55:06,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:55:06,720 INFO L82 PathProgramCache]: Analyzing trace with hash -533399944, now seen corresponding path program 1 times [2021-03-13 02:55:06,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:55:06,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879491876] [2021-03-13 02:55:06,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:55:06,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:55:06,778 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:55:06,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879491876] [2021-03-13 02:55:06,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825055388] [2021-03-13 02:55:06,779 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 [2021-03-13 02:55:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:55:06,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-13 02:55:06,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:55:06,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-03-13 02:55:06,905 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-13 02:55:06,908 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:55:06,908 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-13 02:55:06,909 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:7 [2021-03-13 02:55:06,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:55:06,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:55:06,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-03-13 02:55:06,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522282681] [2021-03-13 02:55:06,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-13 02:55:06,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:55:06,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-13 02:55:06,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-13 02:55:06,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:55:06,985 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:55:06,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 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) [2021-03-13 02:55:06,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:55:06,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:55:07,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:55:07,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:55:07,271 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:55:07,272 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:55:07,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:55:07,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1513452446, now seen corresponding path program 2 times [2021-03-13 02:55:07,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:55:07,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187771436] [2021-03-13 02:55:07,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:55:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:55:07,308 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:55:07,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187771436] [2021-03-13 02:55:07,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666188956] [2021-03-13 02:55:07,308 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 [2021-03-13 02:55:07,354 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-13 02:55:07,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:55:07,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-13 02:55:07,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:55:07,421 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-13 02:55:07,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:55:07,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 6 [2021-03-13 02:55:07,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146925283] [2021-03-13 02:55:07,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-13 02:55:07,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:55:07,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-13 02:55:07,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-03-13 02:55:07,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:55:07,422 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:55:07,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 02:55:07,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:55:07,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:55:07,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:55:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:55:07,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:55:07,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:55:07,684 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:55:07,684 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:55:07,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:55:07,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1896987400, now seen corresponding path program 3 times [2021-03-13 02:55:07,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:55:07,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196959210] [2021-03-13 02:55:07,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:55:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:55:07,803 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:55:07,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196959210] [2021-03-13 02:55:07,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808367539] [2021-03-13 02:55:07,803 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:55:07,826 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-03-13 02:55:07,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:55:07,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-13 02:55:07,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:55:07,947 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:55:07,947 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2021-03-13 02:55:07,962 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-13 02:55:07,967 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:55:07,968 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-13 02:55:07,968 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:32, output treesize:18 [2021-03-13 02:55:08,023 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:55:08,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:55:08,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2021-03-13 02:55:08,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176776530] [2021-03-13 02:55:08,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-13 02:55:08,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:55:08,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-13 02:55:08,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-03-13 02:55:08,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:55:08,024 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:55:08,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 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) [2021-03-13 02:55:08,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:55:08,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:55:08,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:55:08,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:55:08,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:55:08,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:55:08,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 02:55:08,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:55:08,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:55:08,459 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:55:08,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:55:08,460 INFO L82 PathProgramCache]: Analyzing trace with hash -783284488, now seen corresponding path program 4 times [2021-03-13 02:55:08,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:55:08,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359760266] [2021-03-13 02:55:08,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:55:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:55:08,600 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-03-13 02:55:08,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359760266] [2021-03-13 02:55:08,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616439862] [2021-03-13 02:55:08,601 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:55:08,641 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-13 02:55:08,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:55:08,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 47 conjunts are in the unsatisfiable core [2021-03-13 02:55:08,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:55:09,081 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:55:09,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 86 [2021-03-13 02:55:09,100 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-13 02:55:09,163 INFO L628 ElimStorePlain]: treesize reduction 92, result has 58.9 percent of original size [2021-03-13 02:55:09,184 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-13 02:55:09,184 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:76, output treesize:52 [2021-03-13 02:55:09,354 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:55:09,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:55:09,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-03-13 02:55:09,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841065235] [2021-03-13 02:55:09,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-13 02:55:09,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:55:09,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-13 02:55:09,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-03-13 02:55:09,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:55:09,363 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:55:09,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 states have internal predecessors, (38), 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) [2021-03-13 02:55:09,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:55:09,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:55:09,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 02:55:09,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:55:09,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:55:09,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:55:09,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:55:09,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 02:55:09,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:55:09,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-13 02:55:10,191 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-03-13 02:55:10,191 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:55:10,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:55:10,192 INFO L82 PathProgramCache]: Analyzing trace with hash -334065756, now seen corresponding path program 5 times [2021-03-13 02:55:10,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:55:10,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513200298] [2021-03-13 02:55:10,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:55:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:55:10,456 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2021-03-13 02:55:10,574 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-03-13 02:55:10,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513200298] [2021-03-13 02:55:10,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516376709] [2021-03-13 02:55:10,574 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:55:10,641 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-03-13 02:55:10,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:55:10,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 59 conjunts are in the unsatisfiable core [2021-03-13 02:55:10,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:55:11,179 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:55:11,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 72 treesize of output 126 [2021-03-13 02:55:11,193 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-13 02:55:11,308 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2021-03-13 02:55:11,308 INFO L628 ElimStorePlain]: treesize reduction 96, result has 71.3 percent of original size [2021-03-13 02:55:11,346 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-13 02:55:11,346 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:90, output treesize:125 [2021-03-13 02:55:11,715 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:55:11,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:55:11,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 23 [2021-03-13 02:55:11,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77047803] [2021-03-13 02:55:11,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-13 02:55:11,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:55:11,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-13 02:55:11,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2021-03-13 02:55:11,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:55:11,717 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:55:11,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 24 states have (on average 1.9166666666666667) internal successors, (46), 24 states have internal predecessors, (46), 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) [2021-03-13 02:55:11,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:55:11,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:55:11,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 02:55:11,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:55:11,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-03-13 02:55:11,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:55:12,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:55:12,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:55:12,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 02:55:12,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:55:12,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-13 02:55:12,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:55:12,747 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:55:12,747 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:55:12,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:55:12,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1981567196, now seen corresponding path program 6 times [2021-03-13 02:55:12,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:55:12,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865430473] [2021-03-13 02:55:12,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:55:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:55:13,040 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-03-13 02:55:13,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865430473] [2021-03-13 02:55:13,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841959202] [2021-03-13 02:55:13,040 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:55:13,082 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-03-13 02:55:13,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:55:13,083 WARN L261 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 72 conjunts are in the unsatisfiable core [2021-03-13 02:55:13,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:55:14,496 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-03-13 02:55:17,761 WARN L205 SmtUtils]: Spent 900.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-03-13 02:55:17,921 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:55:17,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 88 treesize of output 176 [2021-03-13 02:55:17,935 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-13 02:55:17,997 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:55:17,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 88 treesize of output 176 [2021-03-13 02:55:18,017 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-13 02:55:18,479 WARN L205 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 164 [2021-03-13 02:55:18,480 INFO L628 ElimStorePlain]: treesize reduction 384, result has 61.7 percent of original size [2021-03-13 02:55:18,570 INFO L550 ElimStorePlain]: Start of recursive call 1: 13 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2021-03-13 02:55:18,570 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 14 variables, input treesize:221, output treesize:200 [2021-03-13 02:55:18,768 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-03-13 02:55:18,982 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2021-03-13 02:55:19,295 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2021-03-13 02:55:19,824 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 84 [2021-03-13 02:55:20,122 INFO L446 ElimStorePlain]: Different costs {15=[queue], 21=[v_prenex_23, v_prenex_26], 28=[v_prenex_25, v_prenex_24, v_prenex_34, v_prenex_22, v_prenex_29, v_prenex_28, v_prenex_27]} [2021-03-13 02:55:20,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 16 [2021-03-13 02:55:20,145 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-13 02:55:20,342 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-03-13 02:55:20,343 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:55:20,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,379 INFO L354 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2021-03-13 02:55:20,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 33 [2021-03-13 02:55:20,381 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-13 02:55:20,574 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2021-03-13 02:55:20,574 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:55:20,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,613 INFO L354 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2021-03-13 02:55:20,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 33 [2021-03-13 02:55:20,624 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-13 02:55:20,840 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-03-13 02:55:20,841 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:55:20,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:20,901 INFO L354 Elim1Store]: treesize reduction 46, result has 43.2 percent of original size [2021-03-13 02:55:20,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 65 treesize of output 53 [2021-03-13 02:55:20,904 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-13 02:55:21,086 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-03-13 02:55:21,087 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:55:21,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,140 INFO L354 Elim1Store]: treesize reduction 30, result has 47.4 percent of original size [2021-03-13 02:55:21,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 23 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 5 case distinctions, treesize of input 65 treesize of output 45 [2021-03-13 02:55:21,143 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-13 02:55:21,299 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-03-13 02:55:21,299 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:55:21,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,374 INFO L354 Elim1Store]: treesize reduction 32, result has 43.9 percent of original size [2021-03-13 02:55:21,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 23 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 5 case distinctions, treesize of input 65 treesize of output 43 [2021-03-13 02:55:21,376 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-13 02:55:21,523 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-03-13 02:55:21,523 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:55:21,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,591 INFO L354 Elim1Store]: treesize reduction 62, result has 41.0 percent of original size [2021-03-13 02:55:21,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 65 treesize of output 61 [2021-03-13 02:55:21,594 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-13 02:55:21,736 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-03-13 02:55:21,736 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:55:21,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,792 INFO L354 Elim1Store]: treesize reduction 46, result has 43.2 percent of original size [2021-03-13 02:55:21,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 65 treesize of output 53 [2021-03-13 02:55:21,794 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-03-13 02:55:21,926 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-03-13 02:55:21,927 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:55:21,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:21,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:22,009 INFO L354 Elim1Store]: treesize reduction 64, result has 39.0 percent of original size [2021-03-13 02:55:22,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 65 treesize of output 59 [2021-03-13 02:55:22,018 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-03-13 02:55:22,135 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-03-13 02:55:22,135 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:55:22,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:22,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:22,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:22,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:22,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:22,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:22,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:22,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:22,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:22,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:22,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:22,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:22,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:22,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:22,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:22,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:22,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-13 02:55:22,192 INFO L354 Elim1Store]: treesize reduction 74, result has 36.8 percent of original size [2021-03-13 02:55:22,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 17 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 11 case distinctions, treesize of input 63 treesize of output 61 [2021-03-13 02:55:22,194 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-13 02:55:22,304 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-03-13 02:55:22,305 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:55:22,346 INFO L550 ElimStorePlain]: Start of recursive call 1: 11 dim-0 vars, 10 dim-1 vars, End of recursive call: and 9 xjuncts. [2021-03-13 02:55:22,346 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 21 variables, input treesize:824, output treesize:149 [2021-03-13 02:55:22,402 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:55:22,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:55:22,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 19] total 30 [2021-03-13 02:55:22,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865384162] [2021-03-13 02:55:22,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-03-13 02:55:22,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:55:22,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-03-13 02:55:22,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=863, Unknown=0, NotChecked=0, Total=992 [2021-03-13 02:55:22,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:55:22,404 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:55:22,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 31 states have (on average 1.7741935483870968) internal successors, (55), 31 states have internal predecessors, (55), 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) [2021-03-13 02:55:22,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:55:22,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:55:22,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 02:55:22,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:55:22,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-03-13 02:55:22,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:55:22,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:55:24,489 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 47 [2021-03-13 02:55:24,984 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2021-03-13 02:55:28,191 WARN L205 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2021-03-13 02:55:31,170 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 47 [2021-03-13 02:55:41,100 WARN L205 SmtUtils]: Spent 2.37 s on a formula simplification. DAG size of input: 97 DAG size of output: 69 [2021-03-13 02:55:44,545 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 54 [2021-03-13 02:55:52,047 WARN L205 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 120 DAG size of output: 80 [2021-03-13 02:55:53,176 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 61 [2021-03-13 02:55:55,130 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 64 [2021-03-13 02:55:55,900 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 63 [2021-03-13 02:55:56,225 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2021-03-13 02:55:56,931 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2021-03-13 02:55:56,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:55:56,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:55:56,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 02:55:56,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:55:56,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-13 02:55:56,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:55:56,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-03-13 02:55:57,171 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:55:57,171 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:55:57,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:55:57,172 INFO L82 PathProgramCache]: Analyzing trace with hash 776509732, now seen corresponding path program 7 times [2021-03-13 02:55:57,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:55:57,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893931314] [2021-03-13 02:55:57,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:55:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:55:57,340 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-03-13 02:55:57,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893931314] [2021-03-13 02:55:57,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398506299] [2021-03-13 02:55:57,341 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:55:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:55:57,379 WARN L261 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 95 conjunts are in the unsatisfiable core [2021-03-13 02:55:57,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:56:17,948 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-03-13 02:56:27,821 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-03-13 02:56:27,822 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 02:56:27,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 122 treesize of output 302 [2021-03-13 02:56:27,865 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-13 02:56:28,338 WARN L205 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 163 [2021-03-13 02:56:28,338 INFO L628 ElimStorePlain]: treesize reduction 399, result has 58.4 percent of original size [2021-03-13 02:56:28,547 INFO L550 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-13 02:56:28,547 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 10 variables, input treesize:138, output treesize:118 [2021-03-13 02:56:29,085 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 79 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:56:29,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:56:29,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 24] total 30 [2021-03-13 02:56:29,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141280965] [2021-03-13 02:56:29,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-03-13 02:56:29,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:56:29,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-03-13 02:56:29,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=795, Unknown=4, NotChecked=0, Total=992 [2021-03-13 02:56:29,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:56:29,087 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:56:29,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 31 states have (on average 1.8064516129032258) internal successors, (56), 31 states have internal predecessors, (56), 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) [2021-03-13 02:56:29,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:56:29,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:56:29,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 02:56:29,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:56:29,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-03-13 02:56:29,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:56:29,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-03-13 02:56:29,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:56:46,434 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2021-03-13 02:57:04,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:57:04,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 02:57:04,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 02:57:04,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:57:04,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-13 02:57:04,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:57:04,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-03-13 02:57:04,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-13 02:57:04,763 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable170 [2021-03-13 02:57:04,763 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:57:04,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:57:04,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1725525796, now seen corresponding path program 8 times [2021-03-13 02:57:04,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:57:04,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136085051] [2021-03-13 02:57:04,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:57:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:57:04,958 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-03-13 02:57:04,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136085051] [2021-03-13 02:57:04,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383169141] [2021-03-13 02:57:04,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:57:04,992 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-13 02:57:04,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:57:04,994 WARN L261 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 119 conjunts are in the unsatisfiable core [2021-03-13 02:57:04,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:57:25,519 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-03-13 02:58:22,081 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-03-13 02:58:22,087 WARN L340 FreeRefinementEngine]: Global settings require throwing the following exception [2021-03-13 02:58:22,288 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable356 [2021-03-13 02:58:22,289 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:226) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:934) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 44 more [2021-03-13 02:58:22,290 INFO L168 Benchmark]: Toolchain (without parser) took 197122.69 ms. Allocated memory was 314.6 MB in the beginning and 377.5 MB in the end (delta: 62.9 MB). Free memory was 294.7 MB in the beginning and 220.7 MB in the end (delta: 74.0 MB). Peak memory consumption was 139.8 MB. Max. memory is 16.0 GB. [2021-03-13 02:58:22,290 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.27 ms. Allocated memory is still 314.6 MB. Free memory was 295.9 MB in the beginning and 295.8 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-13 02:58:22,291 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.03 ms. Allocated memory is still 314.6 MB. Free memory was 294.2 MB in the beginning and 292.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-13 02:58:22,291 INFO L168 Benchmark]: Boogie Preprocessor took 10.80 ms. Allocated memory is still 314.6 MB. Free memory was 292.8 MB in the beginning and 291.8 MB in the end (delta: 973.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-13 02:58:22,291 INFO L168 Benchmark]: RCFGBuilder took 185.89 ms. Allocated memory is still 314.6 MB. Free memory was 291.7 MB in the beginning and 278.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-13 02:58:22,291 INFO L168 Benchmark]: TraceAbstraction took 196468.22 ms. Allocated memory was 314.6 MB in the beginning and 377.5 MB in the end (delta: 62.9 MB). Free memory was 278.4 MB in the beginning and 220.7 MB in the end (delta: 57.7 MB). Peak memory consumption was 123.0 MB. Max. memory is 16.0 GB. [2021-03-13 02:58:22,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.27 ms. Allocated memory is still 314.6 MB. Free memory was 295.9 MB in the beginning and 295.8 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 18.03 ms. Allocated memory is still 314.6 MB. Free memory was 294.2 MB in the beginning and 292.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 10.80 ms. Allocated memory is still 314.6 MB. Free memory was 292.8 MB in the beginning and 291.8 MB in the end (delta: 973.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 185.89 ms. Allocated memory is still 314.6 MB. Free memory was 291.7 MB in the beginning and 278.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 196468.22 ms. Allocated memory was 314.6 MB in the beginning and 377.5 MB in the end (delta: 62.9 MB). Free memory was 278.4 MB in the beginning and 220.7 MB in the end (delta: 57.7 MB). Peak memory consumption was 123.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 534.9ms, 32 PlacesBefore, 20 PlacesAfterwards, 28 TransitionsBefore, 16 TransitionsAfterwards, 124 CoEnabledTransitionPairs, 3 FixpointIterations, 6 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 15 TotalNumberOfCompositions, 171 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 145, positive: 131, positive conditional: 0, positive unconditional: 131, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 92, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 92, positive: 78, positive conditional: 0, positive unconditional: 78, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 106, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 145, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 92, unknown conditional: 0, unknown unconditional: 92] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...