/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-New_States.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-12 18:29:24,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-12 18:29:24,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-12 18:29:24,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-12 18:29:24,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-12 18:29:24,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-12 18:29:24,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-12 18:29:24,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-12 18:29:24,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-12 18:29:24,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-12 18:29:24,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-12 18:29:24,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-12 18:29:24,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-12 18:29:24,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-12 18:29:24,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-12 18:29:24,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-12 18:29:24,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-12 18:29:24,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-12 18:29:24,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-12 18:29:24,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-12 18:29:24,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-12 18:29:24,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-12 18:29:24,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-12 18:29:24,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-12 18:29:24,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-12 18:29:24,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-12 18:29:24,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-12 18:29:24,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-12 18:29:24,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-12 18:29:24,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-12 18:29:24,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-12 18:29:24,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-12 18:29:24,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-12 18:29:24,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-12 18:29:24,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-12 18:29:24,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-12 18:29:24,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-12 18:29:24,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-12 18:29:24,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-12 18:29:24,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-12 18:29:24,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-12 18:29:24,697 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-New_States.epf [2021-03-12 18:29:24,725 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-12 18:29:24,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-12 18:29:24,726 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-12 18:29:24,726 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-12 18:29:24,727 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-12 18:29:24,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-12 18:29:24,728 INFO L138 SettingsManager]: * Use SBE=true [2021-03-12 18:29:24,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-12 18:29:24,728 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-12 18:29:24,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-12 18:29:24,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-12 18:29:24,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-12 18:29:24,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-12 18:29:24,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-12 18:29:24,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-12 18:29:24,729 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-12 18:29:24,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-12 18:29:24,730 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-12 18:29:24,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-12 18:29:24,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-12 18:29:24,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-12 18:29:24,730 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-12 18:29:24,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-12 18:29:24,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 18:29:24,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-12 18:29:24,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-12 18:29:24,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-12 18:29:24,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-12 18:29:24,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-12 18:29:24,732 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-12 18:29:24,732 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-12 18:29:24,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-12 18:29:24,732 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-03-12 18:29:24,732 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-12 18:29:25,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-12 18:29:25,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-12 18:29:25,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-12 18:29:25,065 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-12 18:29:25,066 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-12 18:29:25,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq-array.wvr.bpl [2021-03-12 18:29:25,067 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq-array.wvr.bpl' [2021-03-12 18:29:25,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-12 18:29:25,129 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-12 18:29:25,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-12 18:29:25,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-12 18:29:25,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-12 18:29:25,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:29:25" (1/1) ... [2021-03-12 18:29:25,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:29:25" (1/1) ... [2021-03-12 18:29:25,153 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-12 18:29:25,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-12 18:29:25,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-12 18:29:25,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-12 18:29:25,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:29:25" (1/1) ... [2021-03-12 18:29:25,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:29:25" (1/1) ... [2021-03-12 18:29:25,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:29:25" (1/1) ... [2021-03-12 18:29:25,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:29:25" (1/1) ... [2021-03-12 18:29:25,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:29:25" (1/1) ... [2021-03-12 18:29:25,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:29:25" (1/1) ... [2021-03-12 18:29:25,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:29:25" (1/1) ... [2021-03-12 18:29:25,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-12 18:29:25,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-12 18:29:25,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-12 18:29:25,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-12 18:29:25,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:29:25" (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 [2021-03-12 18:29:25,226 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-12 18:29:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-12 18:29:25,227 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-12 18:29:25,227 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-12 18:29:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-12 18:29:25,227 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-12 18:29:25,227 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-12 18:29:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-12 18:29:25,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-12 18:29:25,228 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-12 18:29:25,435 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-12 18:29:25,436 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-12 18:29:25,437 INFO L202 PluginConnector]: Adding new model dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 06:29:25 BoogieIcfgContainer [2021-03-12 18:29:25,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-12 18:29:25,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-12 18:29:25,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-12 18:29:25,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-12 18:29:25,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:29:25" (1/2) ... [2021-03-12 18:29:25,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209da8bf and model type dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 06:29:25, skipping insertion in model container [2021-03-12 18:29:25,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 06:29:25" (2/2) ... [2021-03-12 18:29:25,455 INFO L111 eAbstractionObserver]: Analyzing ICFG dec-subseq-array.wvr.bpl [2021-03-12 18:29:25,460 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-12 18:29:25,460 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-12 18:29:25,463 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-12 18:29:25,484 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-12 18:29:25,526 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-12 18:29:25,538 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 [2021-03-12 18:29:25,578 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-12 18:29:25,579 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-12 18:29:25,579 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-12 18:29:25,579 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-12 18:29:25,579 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-12 18:29:25,579 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-12 18:29:25,579 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-12 18:29:25,583 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-12 18:29:25,722 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:29:25,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:29:25,732 INFO L82 PathProgramCache]: Analyzing trace with hash -2007819668, now seen corresponding path program 1 times [2021-03-12 18:29:25,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:29:25,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356060790] [2021-03-12 18:29:25,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:29:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:29:25,923 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 18:29:25,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356060790] [2021-03-12 18:29:25,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 18:29:25,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-12 18:29:25,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944608530] [2021-03-12 18:29:25,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-12 18:29:25,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:29:25,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-12 18:29:25,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-12 18:29:25,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:29:25,949 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:29:25,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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) [2021-03-12 18:29:25,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:29:26,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:29:26,024 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-12 18:29:26,024 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:29:26,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:29:26,028 INFO L82 PathProgramCache]: Analyzing trace with hash -369699284, now seen corresponding path program 2 times [2021-03-12 18:29:26,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:29:26,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094628333] [2021-03-12 18:29:26,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:29:26,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:29:26,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:29:26,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094628333] [2021-03-12 18:29:26,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210012742] [2021-03-12 18:29:26,215 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 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 [2021-03-12 18:29:26,260 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 18:29:26,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:29:26,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-12 18:29:26,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:29:26,443 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 [2021-03-12 18:29:26,451 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 18:29:26,455 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 18:29:26,457 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 18:29:26,457 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:7 [2021-03-12 18:29:26,504 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 11 treesize of output 7 [2021-03-12 18:29:26,507 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 18:29:26,511 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 18:29:26,513 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 18:29:26,513 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2021-03-12 18:29:26,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:29:26,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:29:26,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 11 [2021-03-12 18:29:26,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274951597] [2021-03-12 18:29:26,548 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 18:29:26,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:29:26,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 18:29:26,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-03-12 18:29:26,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:29:26,549 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:29:26,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 11 states have internal predecessors, (31), 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) [2021-03-12 18:29:26,549 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:29:26,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:29:26,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:29:26,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 18:29:26,891 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:29:26,892 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:29:26,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:29:26,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1728612795, now seen corresponding path program 3 times [2021-03-12 18:29:26,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:29:26,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264682567] [2021-03-12 18:29:26,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:29:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:29:27,251 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:29:27,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264682567] [2021-03-12 18:29:27,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410362128] [2021-03-12 18:29:27,251 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 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 [2021-03-12 18:29:27,284 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-03-12 18:29:27,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:29:27,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 24 conjunts are in the unsatisfiable core [2021-03-12 18:29:27,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:29:27,511 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 18:29:27,511 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 29 treesize of output 27 [2021-03-12 18:29:27,533 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 18:29:27,538 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 18:29:27,539 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 18:29:27,539 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:16 [2021-03-12 18:29:27,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:27,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:27,684 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 18:29:27,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 20 [2021-03-12 18:29:27,702 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-03-12 18:29:27,724 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 18:29:27,737 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 18:29:27,737 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:33, output treesize:21 [2021-03-12 18:29:27,821 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:29:27,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:29:27,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 27 [2021-03-12 18:29:27,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086453912] [2021-03-12 18:29:27,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-12 18:29:27,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:29:27,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-12 18:29:27,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2021-03-12 18:29:27,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:29:27,827 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:29:27,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.0714285714285716) internal successors, (58), 27 states have internal predecessors, (58), 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) [2021-03-12 18:29:27,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:29:27,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 18:29:27,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:29:28,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:29:28,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 18:29:28,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-12 18:29:28,991 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:29:28,991 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:29:28,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:29:28,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1493145293, now seen corresponding path program 1 times [2021-03-12 18:29:28,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:29:28,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629809730] [2021-03-12 18:29:28,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:29:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:29:29,059 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 25 proven. 26 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-03-12 18:29:29,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629809730] [2021-03-12 18:29:29,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658037322] [2021-03-12 18:29:29,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:29:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:29:29,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-12 18:29:29,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:29:29,224 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 37 proven. 14 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-03-12 18:29:29,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:29:29,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-03-12 18:29:29,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297607577] [2021-03-12 18:29:29,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 18:29:29,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:29:29,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 18:29:29,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-03-12 18:29:29,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:29:29,226 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:29:29,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 18:29:29,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:29:29,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 18:29:29,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-03-12 18:29:29,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:29:29,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:29:29,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 18:29:29,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:29:29,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 18:29:29,571 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:29:29,571 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:29:29,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:29:29,572 INFO L82 PathProgramCache]: Analyzing trace with hash 370970794, now seen corresponding path program 2 times [2021-03-12 18:29:29,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:29:29,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623141054] [2021-03-12 18:29:29,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:29:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:29:30,596 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-03-12 18:29:30,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623141054] [2021-03-12 18:29:30,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536065687] [2021-03-12 18:29:30,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:29:30,658 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 18:29:30,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:29:30,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 72 conjunts are in the unsatisfiable core [2021-03-12 18:29:30,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:29:33,206 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 18:29:33,207 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 90 treesize of output 178 [2021-03-12 18:29:33,253 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 18:29:33,476 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 94 [2021-03-12 18:29:33,476 INFO L628 ElimStorePlain]: treesize reduction 230, result has 56.4 percent of original size [2021-03-12 18:29:33,560 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 18:29:33,561 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:108, output treesize:74 [2021-03-12 18:29:34,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:34,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:34,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:34,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:34,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:34,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:34,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:34,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:34,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:34,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:34,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:34,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:34,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:34,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:34,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:34,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:34,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:34,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:34,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:34,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:29:34,300 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 18:29:34,326 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 18:29:34,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 66 treesize of output 80 [2021-03-12 18:29:34,375 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-03-12 18:29:34,391 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 18:29:34,406 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 18:29:34,406 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:85, output treesize:17 [2021-03-12 18:29:34,517 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 13 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:29:34,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:29:34,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 39] total 66 [2021-03-12 18:29:34,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993988006] [2021-03-12 18:29:34,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 67 states [2021-03-12 18:29:34,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:29:34,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-03-12 18:29:34,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=477, Invalid=3945, Unknown=0, NotChecked=0, Total=4422 [2021-03-12 18:29:34,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:29:34,521 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:29:34,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 67 states, 67 states have (on average 1.835820895522388) internal successors, (123), 66 states have internal predecessors, (123), 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) [2021-03-12 18:29:34,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:29:34,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 18:29:34,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:29:34,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 18:29:34,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:29:36,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:29:36,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 18:29:36,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:29:36,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 18:29:36,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-12 18:29:36,305 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-03-12 18:29:36,305 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:29:36,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:29:36,306 INFO L82 PathProgramCache]: Analyzing trace with hash 475899520, now seen corresponding path program 3 times [2021-03-12 18:29:36,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:29:36,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044804225] [2021-03-12 18:29:36,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:29:36,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:29:36,407 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-03-12 18:29:36,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044804225] [2021-03-12 18:29:36,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265847570] [2021-03-12 18:29:36,409 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:29:36,463 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-03-12 18:29:36,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:29:36,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-12 18:29:36,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:29:36,627 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 105 proven. 66 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-03-12 18:29:36,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:29:36,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-03-12 18:29:36,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615177357] [2021-03-12 18:29:36,628 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 18:29:36,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:29:36,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 18:29:36,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-03-12 18:29:36,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:29:36,629 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:29:36,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-03-12 18:29:36,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:29:36,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 18:29:36,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:29:36,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 18:29:36,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-03-12 18:29:36,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:29:36,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:29:36,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 18:29:36,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:29:36,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 18:29:36,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-12 18:29:36,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 18:29:36,896 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:29:36,896 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:29:36,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:29:36,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1387776392, now seen corresponding path program 4 times [2021-03-12 18:29:36,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:29:36,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018454346] [2021-03-12 18:29:36,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:29:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:29:38,127 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 277 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-03-12 18:29:38,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018454346] [2021-03-12 18:29:38,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983671310] [2021-03-12 18:29:38,128 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:29:38,170 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 18:29:38,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:29:38,172 WARN L261 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 95 conjunts are in the unsatisfiable core [2021-03-12 18:29:38,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:29:55,638 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-03-12 18:30:12,450 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-03-12 18:30:12,695 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-03-12 18:30:12,696 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 18:30:12,696 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 [2021-03-12 18:30:12,735 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 18:30:13,296 WARN L205 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 168 [2021-03-12 18:30:13,297 INFO L628 ElimStorePlain]: treesize reduction 347, result has 63.2 percent of original size [2021-03-12 18:30:13,551 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. [2021-03-12 18:30:13,552 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 10 variables, input treesize:140, output treesize:166 [2021-03-12 18:30:16,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,106 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 18:30:16,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,111 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 18:30:16,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:16,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 28 disjoint index pairs (out of 45 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 28 [2021-03-12 18:30:16,122 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 18:30:16,129 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 18:30:16,131 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 18:30:16,131 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:101, output treesize:5 [2021-03-12 18:30:16,144 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 18 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:30:16,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:30:16,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 50] total 85 [2021-03-12 18:30:16,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096919780] [2021-03-12 18:30:16,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 86 states [2021-03-12 18:30:16,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:30:16,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2021-03-12 18:30:16,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=589, Invalid=6719, Unknown=2, NotChecked=0, Total=7310 [2021-03-12 18:30:16,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:30:16,149 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:30:16,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 86 states, 86 states have (on average 1.755813953488372) internal successors, (151), 85 states have internal predecessors, (151), 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) [2021-03-12 18:30:16,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:30:16,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 18:30:16,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:30:16,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 18:30:16,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-03-12 18:30:16,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 18:30:16,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:30:17,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:30:17,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 18:30:17,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:30:17,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 18:30:17,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-12 18:30:17,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 18:30:17,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-12 18:30:18,139 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:30:18,139 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:30:18,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:30:18,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1859430946, now seen corresponding path program 5 times [2021-03-12 18:30:18,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:30:18,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915204312] [2021-03-12 18:30:18,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:30:18,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:30:18,209 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 150 proven. 149 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-03-12 18:30:18,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915204312] [2021-03-12 18:30:18,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072357454] [2021-03-12 18:30:18,209 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:30:18,256 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-03-12 18:30:18,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:30:18,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-12 18:30:18,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:30:18,437 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 177 proven. 122 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-03-12 18:30:18,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:30:18,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-03-12 18:30:18,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916856966] [2021-03-12 18:30:18,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 18:30:18,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:30:18,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 18:30:18,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2021-03-12 18:30:18,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:30:18,439 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:30:18,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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) [2021-03-12 18:30:18,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:30:18,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 18:30:18,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:30:18,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 18:30:18,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-03-12 18:30:18,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 18:30:18,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-03-12 18:30:18,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:30:18,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:30:18,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 18:30:18,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:30:18,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 18:30:18,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-12 18:30:18,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 18:30:18,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-12 18:30:18,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 18:30:18,707 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable228 [2021-03-12 18:30:18,707 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:30:18,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:30:18,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1374304522, now seen corresponding path program 6 times [2021-03-12 18:30:18,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:30:18,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442439336] [2021-03-12 18:30:18,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:30:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:30:20,349 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-03-12 18:30:20,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442439336] [2021-03-12 18:30:20,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717394912] [2021-03-12 18:30:20,349 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:30:20,399 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-03-12 18:30:20,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:30:20,401 WARN L261 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 132 conjunts are in the unsatisfiable core [2021-03-12 18:30:20,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:30:26,843 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-03-12 18:30:26,844 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 18:30:26,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 10 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 35 case distinctions, treesize of input 152 treesize of output 376 [2021-03-12 18:30:26,923 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 18:30:27,578 WARN L205 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 179 [2021-03-12 18:30:27,579 INFO L628 ElimStorePlain]: treesize reduction 680, result has 48.1 percent of original size [2021-03-12 18:30:28,786 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 18:30:28,786 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:160, output treesize:104 [2021-03-12 18:30:30,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:30,927 INFO L244 Elim1Store]: Index analysis took 185 ms [2021-03-12 18:30:30,999 INFO L354 Elim1Store]: treesize reduction 38, result has 66.4 percent of original size [2021-03-12 18:30:30,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 81 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 10 case distinctions, treesize of input 123 treesize of output 111 [2021-03-12 18:30:31,059 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 18:30:31,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,220 INFO L244 Elim1Store]: Index analysis took 154 ms [2021-03-12 18:30:31,227 INFO L354 Elim1Store]: treesize reduction 78, result has 1.3 percent of original size [2021-03-12 18:30:31,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 71 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 7 case distinctions, treesize of input 123 treesize of output 1 [2021-03-12 18:30:31,228 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-12 18:30:31,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,361 INFO L244 Elim1Store]: Index analysis took 128 ms [2021-03-12 18:30:31,391 INFO L354 Elim1Store]: treesize reduction 60, result has 10.4 percent of original size [2021-03-12 18:30:31,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 60 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 6 case distinctions, treesize of input 112 treesize of output 40 [2021-03-12 18:30:31,395 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-12 18:30:31,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 18:30:31,495 INFO L354 Elim1Store]: treesize reduction 90, result has 1.1 percent of original size [2021-03-12 18:30:31,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 70 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 8 case distinctions, treesize of input 123 treesize of output 1 [2021-03-12 18:30:31,496 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-12 18:30:31,542 INFO L628 ElimStorePlain]: treesize reduction 19, result has 70.8 percent of original size [2021-03-12 18:30:31,546 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-03-12 18:30:31,546 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:515, output treesize:42 [2021-03-12 18:30:31,773 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 27 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:30:31,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:30:31,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 69] total 117 [2021-03-12 18:30:31,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007400280] [2021-03-12 18:30:31,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 118 states [2021-03-12 18:30:31,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:30:31,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2021-03-12 18:30:31,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=880, Invalid=12926, Unknown=0, NotChecked=0, Total=13806 [2021-03-12 18:30:31,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:30:31,781 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:30:31,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 118 states, 118 states have (on average 1.5932203389830508) internal successors, (188), 117 states have internal predecessors, (188), 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) [2021-03-12 18:30:31,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:30:31,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 18:30:31,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:30:31,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 18:30:31,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-03-12 18:30:31,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 18:30:31,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-03-12 18:30:31,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 18:30:31,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:30:35,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:30:35,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 18:30:35,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:30:35,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 18:30:35,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-12 18:30:35,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 18:30:35,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-12 18:30:35,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 18:30:35,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:30:35,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:30:35,947 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:30:35,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:30:35,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1703204404, now seen corresponding path program 7 times [2021-03-12 18:30:35,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:30:35,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636481486] [2021-03-12 18:30:35,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:30:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:30:36,033 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 235 proven. 228 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-03-12 18:30:36,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636481486] [2021-03-12 18:30:36,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401303060] [2021-03-12 18:30:36,034 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:30:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:30:36,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 23 conjunts are in the unsatisfiable core [2021-03-12 18:30:36,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:30:36,333 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 268 proven. 195 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-03-12 18:30:36,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:30:36,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-03-12 18:30:36,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999007120] [2021-03-12 18:30:36,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 18:30:36,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:30:36,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 18:30:36,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-03-12 18:30:36,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:30:36,335 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:30:36,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 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) [2021-03-12 18:30:36,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:30:36,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 18:30:36,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:30:36,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 18:30:36,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-03-12 18:30:36,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 18:30:36,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-03-12 18:30:36,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 18:30:36,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:30:36,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:30:36,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:30:36,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 18:30:36,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:30:36,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 18:30:36,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-12 18:30:36,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 18:30:36,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-12 18:30:36,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 18:30:36,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:30:36,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 18:30:36,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1007,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:30:36,617 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:30:36,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:30:36,617 INFO L82 PathProgramCache]: Analyzing trace with hash -774473272, now seen corresponding path program 8 times [2021-03-12 18:30:36,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:30:36,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050468079] [2021-03-12 18:30:36,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:30:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:30:39,176 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 0 proven. 629 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-03-12 18:30:39,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050468079] [2021-03-12 18:30:39,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857230924] [2021-03-12 18:30:39,177 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:30:39,233 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 18:30:39,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:30:39,238 WARN L261 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 144 conjunts are in the unsatisfiable core [2021-03-12 18:30:39,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:30:47,127 WARN L205 SmtUtils]: Spent 3.85 s on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-03-12 18:30:50,163 WARN L205 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-03-12 18:30:51,122 WARN L205 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-03-12 18:31:12,951 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-03-12 18:31:41,308 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-03-12 18:31:56,940 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-03-12 18:31:56,942 WARN L340 FreeRefinementEngine]: Global settings require throwing the following exception [2021-03-12 18:31:57,142 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1008 [2021-03-12 18:31:57,145 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 [2021-03-12 18:31:57,149 INFO L168 Benchmark]: Toolchain (without parser) took 152022.80 ms. Allocated memory was 255.9 MB in the beginning and 539.0 MB in the end (delta: 283.1 MB). Free memory was 236.1 MB in the beginning and 299.4 MB in the end (delta: -63.3 MB). Peak memory consumption was 221.3 MB. Max. memory is 16.0 GB. [2021-03-12 18:31:57,150 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 18:31:57,150 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.92 ms. Allocated memory is still 255.9 MB. Free memory was 235.6 MB in the beginning and 234.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 18:31:57,150 INFO L168 Benchmark]: Boogie Preprocessor took 15.72 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 233.2 MB in the end (delta: 955.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 18:31:57,150 INFO L168 Benchmark]: RCFGBuilder took 266.24 ms. Allocated memory is still 255.9 MB. Free memory was 233.2 MB in the beginning and 236.4 MB in the end (delta: -3.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.0 GB. [2021-03-12 18:31:57,151 INFO L168 Benchmark]: TraceAbstraction took 151698.33 ms. Allocated memory was 255.9 MB in the beginning and 539.0 MB in the end (delta: 283.1 MB). Free memory was 235.9 MB in the beginning and 299.4 MB in the end (delta: -63.5 MB). Peak memory consumption was 219.5 MB. Max. memory is 16.0 GB. [2021-03-12 18:31:57,153 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.92 ms. Allocated memory is still 255.9 MB. Free memory was 235.6 MB in the beginning and 234.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.72 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 233.2 MB in the end (delta: 955.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 266.24 ms. Allocated memory is still 255.9 MB. Free memory was 233.2 MB in the beginning and 236.4 MB in the end (delta: -3.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 151698.33 ms. Allocated memory was 255.9 MB in the beginning and 539.0 MB in the end (delta: 283.1 MB). Free memory was 235.9 MB in the beginning and 299.4 MB in the end (delta: -63.5 MB). Peak memory consumption was 219.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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...