/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/parray-copy.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-12 10:39:08,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-12 10:39:08,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-12 10:39:08,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-12 10:39:08,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-12 10:39:08,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-12 10:39:08,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-12 10:39:08,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-12 10:39:08,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-12 10:39:08,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-12 10:39:08,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-12 10:39:08,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-12 10:39:08,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-12 10:39:08,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-12 10:39:08,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-12 10:39:08,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-12 10:39:08,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-12 10:39:08,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-12 10:39:08,935 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-12 10:39:08,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-12 10:39:08,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-12 10:39:08,942 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-12 10:39:08,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-12 10:39:08,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-12 10:39:08,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-12 10:39:08,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-12 10:39:08,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-12 10:39:08,953 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-12 10:39:08,953 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-12 10:39:08,954 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-12 10:39:08,954 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-12 10:39:08,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-12 10:39:08,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-12 10:39:08,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-12 10:39:08,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-12 10:39:08,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-12 10:39:08,959 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-Delay.epf [2021-03-12 10:39:08,988 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-12 10:39:08,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-12 10:39:08,989 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-12 10:39:08,989 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-12 10:39:08,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-12 10:39:08,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-12 10:39:08,991 INFO L138 SettingsManager]: * Use SBE=true [2021-03-12 10:39:08,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-12 10:39:08,992 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-12 10:39:08,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-12 10:39:08,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-12 10:39:08,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-12 10:39:08,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-12 10:39:08,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-12 10:39:08,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-12 10:39:08,993 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-12 10:39:08,993 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-12 10:39:08,993 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-12 10:39:08,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-12 10:39:08,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-12 10:39:08,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-12 10:39:08,994 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-12 10:39:08,994 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-12 10:39:08,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 10:39:08,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-12 10:39:08,994 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-12 10:39:08,994 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-12 10:39:08,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-12 10:39:08,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-12 10:39:08,995 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-12 10:39:08,995 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-12 10:39:08,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-12 10:39:08,995 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-03-12 10:39:08,995 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-12 10:39:09,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-12 10:39:09,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-12 10:39:09,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-12 10:39:09,243 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-12 10:39:09,244 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-12 10:39:09,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/parray-copy.wvr.bpl [2021-03-12 10:39:09,245 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/parray-copy.wvr.bpl' [2021-03-12 10:39:09,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-12 10:39:09,617 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-12 10:39:09,619 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-12 10:39:09,619 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-12 10:39:09,619 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-12 10:39:09,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:39:09" (1/1) ... [2021-03-12 10:39:09,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:39:09" (1/1) ... [2021-03-12 10:39:09,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-12 10:39:09,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-12 10:39:09,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-12 10:39:09,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-12 10:39:09,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:39:09" (1/1) ... [2021-03-12 10:39:09,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:39:09" (1/1) ... [2021-03-12 10:39:09,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:39:09" (1/1) ... [2021-03-12 10:39:09,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:39:09" (1/1) ... [2021-03-12 10:39:09,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:39:09" (1/1) ... [2021-03-12 10:39:09,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:39:09" (1/1) ... [2021-03-12 10:39:09,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:39:09" (1/1) ... [2021-03-12 10:39:09,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-12 10:39:09,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-12 10:39:09,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-12 10:39:09,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-12 10:39:09,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:39:09" (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 10:39:09,711 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-12 10:39:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-12 10:39:09,711 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-12 10:39:09,711 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-12 10:39:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-12 10:39:09,712 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-12 10:39:09,712 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-12 10:39:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-12 10:39:09,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-12 10:39:09,712 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-12 10:39:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-12 10:39:09,712 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-12 10:39:09,713 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 10:39:09,893 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-12 10:39:09,893 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-12 10:39:09,894 INFO L202 PluginConnector]: Adding new model parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 10:39:09 BoogieIcfgContainer [2021-03-12 10:39:09,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-12 10:39:09,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-12 10:39:09,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-12 10:39:09,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-12 10:39:09,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:39:09" (1/2) ... [2021-03-12 10:39:09,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71120352 and model type parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 10:39:09, skipping insertion in model container [2021-03-12 10:39:09,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 10:39:09" (2/2) ... [2021-03-12 10:39:09,898 INFO L111 eAbstractionObserver]: Analyzing ICFG parray-copy.wvr.bpl [2021-03-12 10:39:09,901 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-12 10:39:09,902 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-12 10:39:09,904 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-12 10:39:09,904 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-12 10:39:09,928 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-12 10:39:09,938 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-12 10:39:09,965 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-12 10:39:09,966 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-12 10:39:09,966 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-12 10:39:09,966 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-12 10:39:09,966 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-12 10:39:09,966 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-12 10:39:09,966 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-12 10:39:09,966 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-12 10:39:10,044 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:39:10,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:39:10,048 INFO L82 PathProgramCache]: Analyzing trace with hash -2035550714, now seen corresponding path program 1 times [2021-03-12 10:39:10,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:39:10,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677578158] [2021-03-12 10:39:10,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:39:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:10,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:39:10,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677578158] [2021-03-12 10:39:10,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 10:39:10,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-12 10:39:10,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022389484] [2021-03-12 10:39:10,158 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-12 10:39:10,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:39:10,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-12 10:39:10,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-12 10:39:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:10,168 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:39:10,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 10:39:10,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:10,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:10,215 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-12 10:39:10,215 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:39:10,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:39:10,215 INFO L82 PathProgramCache]: Analyzing trace with hash -974802716, now seen corresponding path program 1 times [2021-03-12 10:39:10,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:39:10,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908315118] [2021-03-12 10:39:10,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:39:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:10,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 10:39:10,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908315118] [2021-03-12 10:39:10,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 10:39:10,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-12 10:39:10,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788483102] [2021-03-12 10:39:10,247 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-12 10:39:10,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:39:10,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-12 10:39:10,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-12 10:39:10,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:10,248 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:39:10,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 10:39:10,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:10,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:10,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:10,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:10,281 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-12 10:39:10,281 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:39:10,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:39:10,282 INFO L82 PathProgramCache]: Analyzing trace with hash -45419966, now seen corresponding path program 1 times [2021-03-12 10:39:10,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:39:10,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319111384] [2021-03-12 10:39:10,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:39:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:10,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:39:10,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319111384] [2021-03-12 10:39:10,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544094661] [2021-03-12 10:39:10,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:39:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:10,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-12 10:39:10,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:39:10,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-03-12 10:39:10,809 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:10,815 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:10,817 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-12 10:39:10,818 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:20 [2021-03-12 10:39:10,840 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 10:39:10,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:39:10,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 16 [2021-03-12 10:39:10,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006908774] [2021-03-12 10:39:10,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-12 10:39:10,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:39:10,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-12 10:39:10,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-03-12 10:39:10,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:10,841 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:39:10,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.5625) internal successors, (41), 16 states have internal predecessors, (41), 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 10:39:10,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:10,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:10,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:11,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:11,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:11,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:11,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:39:11,343 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:39:11,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:39:11,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1095765536, now seen corresponding path program 2 times [2021-03-12 10:39:11,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:39:11,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701978109] [2021-03-12 10:39:11,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:39:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:11,421 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:39:11,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701978109] [2021-03-12 10:39:11,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998082999] [2021-03-12 10:39:11,421 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:39:11,455 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 10:39:11,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:39:11,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 10:39:11,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:39:11,592 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:39:11,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:39:11,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-03-12 10:39:11,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854657051] [2021-03-12 10:39:11,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 10:39:11,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:39:11,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 10:39:11,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-03-12 10:39:11,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:11,599 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:39:11,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 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 10:39:11,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:11,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:11,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:11,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:11,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:11,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:11,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:11,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:11,956 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:39:11,957 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:39:11,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:39:11,957 INFO L82 PathProgramCache]: Analyzing trace with hash 714427236, now seen corresponding path program 1 times [2021-03-12 10:39:11,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:39:11,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548047421] [2021-03-12 10:39:11,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:39:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:12,007 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 10:39:12,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548047421] [2021-03-12 10:39:12,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184583812] [2021-03-12 10:39:12,008 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 10:39:12,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:12,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 10:39:12,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:39:12,123 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 10:39:12,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:39:12,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-03-12 10:39:12,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342830063] [2021-03-12 10:39:12,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 10:39:12,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:39:12,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 10:39:12,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-03-12 10:39:12,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:12,124 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:39:12,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 10:39:12,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:12,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:12,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:12,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:12,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:12,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:12,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:12,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:12,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:12,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:12,431 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:39:12,432 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:39:12,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:39:12,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1094612798, now seen corresponding path program 2 times [2021-03-12 10:39:12,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:39:12,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88437996] [2021-03-12 10:39:12,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:39:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:13,027 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:39:13,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88437996] [2021-03-12 10:39:13,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244747] [2021-03-12 10:39:13,027 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) [2021-03-12 10:39:13,066 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 10:39:13,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:39:13,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjunts are in the unsatisfiable core [2021-03-12 10:39:13,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:39:13,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-03-12 10:39:13,168 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:13,175 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:13,177 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-12 10:39:13,177 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:25 [2021-03-12 10:39:13,237 INFO L354 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2021-03-12 10:39:13,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 18 [2021-03-12 10:39:13,238 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:13,248 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:13,255 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-03-12 10:39:13,255 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:38, output treesize:37 [2021-03-12 10:39:13,398 INFO L354 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2021-03-12 10:39:13,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 28 [2021-03-12 10:39:13,403 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:13,413 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:13,420 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-03-12 10:39:13,420 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:47, output treesize:46 [2021-03-12 10:39:13,596 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-03-12 10:39:13,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:39:13,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 24 [2021-03-12 10:39:13,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443543540] [2021-03-12 10:39:13,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-12 10:39:13,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:39:13,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-12 10:39:13,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2021-03-12 10:39:13,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:13,598 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:39:13,598 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 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 10:39:13,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:13,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:13,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:13,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:13,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:13,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:14,200 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2021-03-12 10:39:14,506 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 48 [2021-03-12 10:39:14,806 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2021-03-12 10:39:14,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:14,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:14,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:14,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:14,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:14,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-12 10:39:15,186 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-03-12 10:39:15,187 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:39:15,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:39:15,188 INFO L82 PathProgramCache]: Analyzing trace with hash 434863490, now seen corresponding path program 3 times [2021-03-12 10:39:15,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:39:15,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101868711] [2021-03-12 10:39:15,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:39:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:15,847 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:39:15,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101868711] [2021-03-12 10:39:15,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204565215] [2021-03-12 10:39:15,847 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 10:39:15,887 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-03-12 10:39:15,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:39:15,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 16 conjunts are in the unsatisfiable core [2021-03-12 10:39:15,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:39:16,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-03-12 10:39:16,007 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:16,015 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:16,016 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-12 10:39:16,016 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:25 [2021-03-12 10:39:16,073 INFO L354 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2021-03-12 10:39:16,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 18 [2021-03-12 10:39:16,074 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:16,084 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:16,092 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-03-12 10:39:16,093 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:38, output treesize:37 [2021-03-12 10:39:16,174 INFO L354 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2021-03-12 10:39:16,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 28 [2021-03-12 10:39:16,180 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:16,191 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:16,197 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-03-12 10:39:16,198 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:50, output treesize:49 [2021-03-12 10:39:16,379 INFO L354 Elim1Store]: treesize reduction 72, result has 18.2 percent of original size [2021-03-12 10:39:16,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 38 [2021-03-12 10:39:16,381 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:16,403 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:16,411 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-03-12 10:39:16,411 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:59, output treesize:58 [2021-03-12 10:39:16,655 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-03-12 10:39:16,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:39:16,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12] total 27 [2021-03-12 10:39:16,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134121861] [2021-03-12 10:39:16,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-03-12 10:39:16,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:39:16,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-03-12 10:39:16,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2021-03-12 10:39:16,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:16,656 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:39:16,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.3703703703703702) internal successors, (64), 27 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 10:39:16,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:16,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:16,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:16,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:16,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:16,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-03-12 10:39:16,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:17,121 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2021-03-12 10:39:17,383 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-12 10:39:17,514 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-03-12 10:39:17,684 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2021-03-12 10:39:17,876 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2021-03-12 10:39:19,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:19,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:19,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:19,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:19,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:19,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:39:19,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:19,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:39:19,371 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:39:19,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:39:19,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1153899710, now seen corresponding path program 4 times [2021-03-12 10:39:19,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:39:19,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926466836] [2021-03-12 10:39:19,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:39:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:20,149 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:39:20,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926466836] [2021-03-12 10:39:20,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249317738] [2021-03-12 10:39:20,149 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 10:39:20,177 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 10:39:20,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:39:20,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 29 conjunts are in the unsatisfiable core [2021-03-12 10:39:20,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:39:20,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-03-12 10:39:20,470 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:20,476 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:20,477 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:20,477 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:23 [2021-03-12 10:39:20,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:20,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-03-12 10:39:20,511 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:20,521 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:20,522 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:20,522 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:34 [2021-03-12 10:39:20,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:20,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:20,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:20,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 36 [2021-03-12 10:39:20,563 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:20,572 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:20,573 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:20,573 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:46, output treesize:45 [2021-03-12 10:39:20,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2021-03-12 10:39:20,646 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:20,656 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:20,657 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:20,657 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:41 [2021-03-12 10:39:20,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:20,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:20,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:20,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:20,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 48 [2021-03-12 10:39:20,710 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:20,721 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:20,723 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-12 10:39:20,723 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:49, output treesize:48 [2021-03-12 10:39:20,800 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:39:20,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:39:20,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 34 [2021-03-12 10:39:20,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787107355] [2021-03-12 10:39:20,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-03-12 10:39:20,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:39:20,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-03-12 10:39:20,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=948, Unknown=0, NotChecked=0, Total=1122 [2021-03-12 10:39:20,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:20,802 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:39:20,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.235294117647059) internal successors, (76), 34 states have internal predecessors, (76), 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 10:39:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:39:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:21,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:21,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:21,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:21,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:21,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:21,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:39:21,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:21,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:39:21,956 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:39:21,957 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:39:21,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:39:21,957 INFO L82 PathProgramCache]: Analyzing trace with hash 855016224, now seen corresponding path program 5 times [2021-03-12 10:39:21,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:39:21,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916570717] [2021-03-12 10:39:21,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:39:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:22,062 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 16 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:39:22,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916570717] [2021-03-12 10:39:22,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793565127] [2021-03-12 10:39:22,062 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 10:39:22,091 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-03-12 10:39:22,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:39:22,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-12 10:39:22,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:39:22,319 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 25 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:39:22,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:39:22,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 28 [2021-03-12 10:39:22,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733725495] [2021-03-12 10:39:22,320 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-12 10:39:22,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:39:22,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-12 10:39:22,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2021-03-12 10:39:22,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:22,320 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:39:22,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.5357142857142856) internal successors, (71), 28 states have internal predecessors, (71), 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 10:39:22,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:22,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:22,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:22,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:22,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:22,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:39:22,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:22,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:39:22,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:23,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:23,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:23,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:23,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:23,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:23,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:39:23,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:23,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:39:23,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-12 10:39:23,215 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-03-12 10:39:23,215 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:39:23,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:39:23,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1241071716, now seen corresponding path program 6 times [2021-03-12 10:39:23,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:39:23,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965887472] [2021-03-12 10:39:23,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:39:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:23,322 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 10:39:23,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965887472] [2021-03-12 10:39:23,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820224566] [2021-03-12 10:39:23,322 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 10:39:23,352 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-03-12 10:39:23,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:39:23,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-12 10:39:23,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:39:23,506 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 10:39:23,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:39:23,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 23 [2021-03-12 10:39:23,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912949229] [2021-03-12 10:39:23,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-12 10:39:23,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:39:23,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-12 10:39:23,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2021-03-12 10:39:23,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:23,508 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:39:23,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 10:39:23,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:23,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:23,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:23,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:23,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:23,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:39:23,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:23,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:39:23,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-03-12 10:39:23,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:23,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:23,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:23,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:23,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:23,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:23,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:39:23,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:23,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:39:23,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-12 10:39:23,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-12 10:39:23,867 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:39:23,867 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:39:23,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:39:23,868 INFO L82 PathProgramCache]: Analyzing trace with hash 510329282, now seen corresponding path program 7 times [2021-03-12 10:39:23,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:39:23,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610896572] [2021-03-12 10:39:23,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:39:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:25,113 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 9 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:39:25,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610896572] [2021-03-12 10:39:25,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862249078] [2021-03-12 10:39:25,113 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 10:39:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:25,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 37 conjunts are in the unsatisfiable core [2021-03-12 10:39:25,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:39:25,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-12 10:39:25,534 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:25,540 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:25,541 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:25,541 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:27 [2021-03-12 10:39:25,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-12 10:39:25,578 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:25,586 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:25,587 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:25,587 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:30 [2021-03-12 10:39:25,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:25,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:25,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2021-03-12 10:39:25,632 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:25,641 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:25,642 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:25,642 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:41 [2021-03-12 10:39:25,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2021-03-12 10:39:25,684 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:25,695 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:25,696 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:25,696 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:44 [2021-03-12 10:39:25,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:25,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:25,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:25,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:25,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2021-03-12 10:39:25,747 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:25,759 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:25,759 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:25,759 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:55 [2021-03-12 10:39:25,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 58 [2021-03-12 10:39:25,849 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:25,860 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:25,861 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:25,861 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:55 [2021-03-12 10:39:25,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:25,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:25,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:25,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:25,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:25,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:25,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 68 [2021-03-12 10:39:25,941 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:25,954 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:25,956 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-12 10:39:25,956 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:63, output treesize:62 [2021-03-12 10:39:26,043 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:39:26,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:39:26,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23] total 44 [2021-03-12 10:39:26,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885105632] [2021-03-12 10:39:26,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-03-12 10:39:26,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:39:26,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-03-12 10:39:26,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=1663, Unknown=0, NotChecked=0, Total=1892 [2021-03-12 10:39:26,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:26,045 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:39:26,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 44 states, 44 states have (on average 2.090909090909091) internal successors, (92), 44 states have internal predecessors, (92), 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 10:39:26,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:26,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:26,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:26,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:26,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:26,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:39:26,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:26,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:39:26,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-03-12 10:39:26,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-03-12 10:39:26,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:27,765 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2021-03-12 10:39:27,940 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 54 [2021-03-12 10:39:28,139 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-03-12 10:39:30,037 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-12 10:39:30,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:30,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:30,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:30,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:30,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:30,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:39:30,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:30,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:39:30,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-12 10:39:30,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-12 10:39:30,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-03-12 10:39:30,263 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:39:30,263 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:39:30,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:39:30,264 INFO L82 PathProgramCache]: Analyzing trace with hash 251542146, now seen corresponding path program 8 times [2021-03-12 10:39:30,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:39:30,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446725800] [2021-03-12 10:39:30,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:39:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:31,663 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 11 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:39:31,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446725800] [2021-03-12 10:39:31,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90484459] [2021-03-12 10:39:31,663 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 10:39:31,689 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 10:39:31,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:39:31,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 41 conjunts are in the unsatisfiable core [2021-03-12 10:39:31,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:39:32,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-12 10:39:32,141 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:32,148 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:32,148 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:32,148 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:27 [2021-03-12 10:39:32,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-12 10:39:32,187 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:32,195 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:32,196 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:32,196 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:30 [2021-03-12 10:39:32,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2021-03-12 10:39:32,237 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:32,247 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:32,247 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:32,247 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:41 [2021-03-12 10:39:32,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 46 [2021-03-12 10:39:32,306 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:32,317 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:32,317 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:32,317 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:52 [2021-03-12 10:39:32,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 60 [2021-03-12 10:39:32,374 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:32,387 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:32,388 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:32,388 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:63 [2021-03-12 10:39:32,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 74 [2021-03-12 10:39:32,449 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:32,463 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:32,464 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:32,464 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:75, output treesize:74 [2021-03-12 10:39:32,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 68 [2021-03-12 10:39:32,568 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:32,584 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:32,585 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:32,585 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:63, output treesize:62 [2021-03-12 10:39:32,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:32,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 78 [2021-03-12 10:39:32,662 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:32,680 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:32,682 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-12 10:39:32,682 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:69 [2021-03-12 10:39:32,780 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:39:32,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:39:32,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 25] total 48 [2021-03-12 10:39:32,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732489973] [2021-03-12 10:39:32,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-03-12 10:39:32,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:39:32,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-03-12 10:39:32,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1996, Unknown=0, NotChecked=0, Total=2256 [2021-03-12 10:39:32,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:32,782 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:39:32,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 48 states, 48 states have (on average 2.0833333333333335) internal successors, (100), 48 states have internal predecessors, (100), 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 10:39:32,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:32,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:32,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:32,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:32,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:32,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:39:32,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:32,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:39:32,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-03-12 10:39:32,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-03-12 10:39:32,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-03-12 10:39:32,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:34,747 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-03-12 10:39:34,906 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 52 [2021-03-12 10:39:35,107 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-03-12 10:39:37,162 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2021-03-12 10:39:37,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:37,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:37,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:37,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:37,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:37,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:39:37,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:37,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:39:37,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-12 10:39:37,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-12 10:39:37,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-03-12 10:39:37,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-03-12 10:39:37,375 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-03-12 10:39:37,375 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:39:37,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:39:37,376 INFO L82 PathProgramCache]: Analyzing trace with hash 722592834, now seen corresponding path program 9 times [2021-03-12 10:39:37,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:39:37,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539786195] [2021-03-12 10:39:37,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:39:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:38,292 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 60 [2021-03-12 10:39:38,719 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2021-03-12 10:39:39,199 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 16 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:39:39,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539786195] [2021-03-12 10:39:39,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235716726] [2021-03-12 10:39:39,199 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:39:39,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-03-12 10:39:39,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:39:39,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 33 conjunts are in the unsatisfiable core [2021-03-12 10:39:39,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:39:39,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-12 10:39:39,384 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:39,390 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:39,390 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:39,390 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:24 [2021-03-12 10:39:39,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2021-03-12 10:39:39,430 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:39,438 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:39,438 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:39,438 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:35 [2021-03-12 10:39:39,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2021-03-12 10:39:39,482 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:39,491 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:39,491 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:39,491 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:46 [2021-03-12 10:39:39,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2021-03-12 10:39:39,549 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:39,560 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:39,561 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:39,561 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:58, output treesize:57 [2021-03-12 10:39:39,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-03-12 10:39:39,621 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:39,633 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:39,634 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:39,634 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:68 [2021-03-12 10:39:39,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 82 [2021-03-12 10:39:39,702 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:39,717 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:39,717 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:39,718 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:80, output treesize:79 [2021-03-12 10:39:39,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 96 [2021-03-12 10:39:39,801 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:39,816 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:39,817 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:39,817 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:91, output treesize:90 [2021-03-12 10:39:39,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:39,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 106 [2021-03-12 10:39:39,902 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:39,921 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:39,923 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-12 10:39:39,923 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:103, output treesize:102 [2021-03-12 10:39:41,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:41,488 INFO L354 Elim1Store]: treesize reduction 170, result has 24.4 percent of original size [2021-03-12 10:39:41,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 93 treesize of output 116 [2021-03-12 10:39:41,491 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:41,513 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:41,517 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-03-12 10:39:41,517 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:112, output treesize:111 [2021-03-12 10:39:41,799 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-03-12 10:39:41,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:39:41,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 17] total 44 [2021-03-12 10:39:41,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270075154] [2021-03-12 10:39:41,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-03-12 10:39:41,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:39:41,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-03-12 10:39:41,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=1678, Unknown=0, NotChecked=0, Total=1892 [2021-03-12 10:39:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:41,800 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:39:41,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 44 states, 44 states have (on average 2.1363636363636362) internal successors, (94), 44 states have internal predecessors, (94), 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 10:39:41,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:41,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:41,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:41,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:41,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:41,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:39:41,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:41,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:39:41,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-03-12 10:39:41,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-03-12 10:39:41,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-03-12 10:39:41,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-03-12 10:39:41,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:43,399 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 48 [2021-03-12 10:39:43,599 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 51 [2021-03-12 10:39:43,770 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 48 [2021-03-12 10:39:44,033 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 61 [2021-03-12 10:39:48,500 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2021-03-12 10:39:49,181 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 58 [2021-03-12 10:39:49,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:49,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:49,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:49,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:49,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:49,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:39:49,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:49,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:39:49,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-12 10:39:49,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-12 10:39:49,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-03-12 10:39:49,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-03-12 10:39:49,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-03-12 10:39:49,399 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-03-12 10:39:49,400 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:39:49,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:39:49,400 INFO L82 PathProgramCache]: Analyzing trace with hash 839120360, now seen corresponding path program 10 times [2021-03-12 10:39:49,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:39:49,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730951029] [2021-03-12 10:39:49,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:39:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:49,637 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 121 proven. 81 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 10:39:49,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730951029] [2021-03-12 10:39:49,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646211323] [2021-03-12 10:39:49,638 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:39:49,680 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 10:39:49,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:39:49,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-12 10:39:49,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:39:49,927 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 115 proven. 81 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-03-12 10:39:49,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:39:49,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22] total 34 [2021-03-12 10:39:49,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346323820] [2021-03-12 10:39:49,928 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-03-12 10:39:49,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:39:49,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-03-12 10:39:49,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=837, Unknown=0, NotChecked=0, Total=1122 [2021-03-12 10:39:49,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:49,929 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:39:49,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 10:39:49,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:49,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:49,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:49,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:49,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:49,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:39:49,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:49,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:39:49,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-03-12 10:39:49,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-03-12 10:39:49,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-03-12 10:39:49,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-03-12 10:39:49,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2021-03-12 10:39:49,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:39:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:39:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-12 10:39:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-12 10:39:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-03-12 10:39:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-03-12 10:39:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-03-12 10:39:50,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-03-12 10:39:50,380 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-03-12 10:39:50,380 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:39:50,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:39:50,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1288488122, now seen corresponding path program 11 times [2021-03-12 10:39:50,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:39:50,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534605198] [2021-03-12 10:39:50,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:39:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:50,612 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 121 proven. 100 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 10:39:50,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534605198] [2021-03-12 10:39:50,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682874882] [2021-03-12 10:39:50,612 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:39:50,699 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-03-12 10:39:50,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:39:50,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 24 conjunts are in the unsatisfiable core [2021-03-12 10:39:50,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:39:50,974 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 121 proven. 100 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 10:39:50,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:39:50,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 36 [2021-03-12 10:39:50,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808610300] [2021-03-12 10:39:50,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-03-12 10:39:50,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:39:50,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-03-12 10:39:50,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=322, Invalid=938, Unknown=0, NotChecked=0, Total=1260 [2021-03-12 10:39:50,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:50,976 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:39:50,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.5) internal successors, (90), 36 states have internal predecessors, (90), 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 10:39:50,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:50,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:50,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:50,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:50,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:50,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:39:50,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:50,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:39:50,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-03-12 10:39:50,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-03-12 10:39:50,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-03-12 10:39:50,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-03-12 10:39:50,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2021-03-12 10:39:50,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-03-12 10:39:50,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:51,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:51,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:51,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:51,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:51,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:51,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:39:51,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:51,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:39:51,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-12 10:39:51,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-12 10:39:51,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-03-12 10:39:51,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-03-12 10:39:51,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-03-12 10:39:51,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-03-12 10:39:51,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-12 10:39:51,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:39:51,470 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:39:51,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:39:51,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1515806428, now seen corresponding path program 12 times [2021-03-12 10:39:51,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:39:51,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166246644] [2021-03-12 10:39:51,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:39:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:51,720 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 121 proven. 121 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 10:39:51,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166246644] [2021-03-12 10:39:51,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698358670] [2021-03-12 10:39:51,720 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:39:51,762 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-03-12 10:39:51,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:39:51,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-12 10:39:51,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:39:52,076 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 121 proven. 121 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 10:39:52,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:39:52,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 38 [2021-03-12 10:39:52,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087783905] [2021-03-12 10:39:52,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-03-12 10:39:52,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:39:52,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-03-12 10:39:52,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=1044, Unknown=0, NotChecked=0, Total=1406 [2021-03-12 10:39:52,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:52,078 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:39:52,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 2.473684210526316) internal successors, (94), 38 states have internal predecessors, (94), 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 10:39:52,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:52,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:52,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:52,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:52,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:52,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:39:52,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:52,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:39:52,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-03-12 10:39:52,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-03-12 10:39:52,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-03-12 10:39:52,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-03-12 10:39:52,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2021-03-12 10:39:52,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-03-12 10:39:52,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-03-12 10:39:52,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:52,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:52,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:52,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:52,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:52,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:52,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:39:52,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:52,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:39:52,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-12 10:39:52,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-12 10:39:52,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-03-12 10:39:52,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-03-12 10:39:52,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-03-12 10:39:52,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-03-12 10:39:52,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-12 10:39:52,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:52,607 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-03-12 10:39:52,607 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:39:52,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:39:52,607 INFO L82 PathProgramCache]: Analyzing trace with hash -925366398, now seen corresponding path program 13 times [2021-03-12 10:39:52,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:39:52,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261509623] [2021-03-12 10:39:52,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:39:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:53,785 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 63 [2021-03-12 10:39:53,963 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 69 [2021-03-12 10:39:54,400 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 60 [2021-03-12 10:39:54,582 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 61 [2021-03-12 10:39:55,592 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 29 proven. 237 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:39:55,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261509623] [2021-03-12 10:39:55,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195751775] [2021-03-12 10:39:55,593 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:39:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:39:55,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 57 conjunts are in the unsatisfiable core [2021-03-12 10:39:55,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:39:56,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-12 10:39:56,370 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:56,378 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:56,379 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:56,379 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:27 [2021-03-12 10:39:56,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2021-03-12 10:39:56,436 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:56,445 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:56,445 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:56,445 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:38 [2021-03-12 10:39:56,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 28 [2021-03-12 10:39:56,497 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:56,507 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:56,508 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:56,508 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:37 [2021-03-12 10:39:56,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 42 [2021-03-12 10:39:56,566 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:56,578 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:56,579 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:56,579 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:48 [2021-03-12 10:39:56,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 56 [2021-03-12 10:39:56,642 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:56,655 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:56,656 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:56,656 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:60, output treesize:59 [2021-03-12 10:39:56,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 58 [2021-03-12 10:39:56,719 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:56,734 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:56,735 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:56,735 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:58 [2021-03-12 10:39:56,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 72 [2021-03-12 10:39:56,804 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:56,821 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:56,822 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:56,822 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:70, output treesize:69 [2021-03-12 10:39:56,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:56,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 86 [2021-03-12 10:39:56,902 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:56,920 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:56,921 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:56,921 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:81, output treesize:80 [2021-03-12 10:39:56,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 88 [2021-03-12 10:39:57,001 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:57,021 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:57,022 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:57,022 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:80, output treesize:79 [2021-03-12 10:39:57,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 98 [2021-03-12 10:39:57,100 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:57,121 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:57,122 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:57,122 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:87, output treesize:86 [2021-03-12 10:39:57,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 108 [2021-03-12 10:39:57,275 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:57,308 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:57,309 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:39:57,310 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:91, output treesize:90 [2021-03-12 10:39:57,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:57,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:57,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:57,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:57,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:57,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:57,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:57,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:57,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:57,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:57,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:39:57,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 118 [2021-03-12 10:39:57,421 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:39:57,446 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:39:57,448 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-12 10:39:57,448 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:98, output treesize:97 [2021-03-12 10:39:57,584 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 0 proven. 266 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:39:57,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:39:57,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 33] total 64 [2021-03-12 10:39:57,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973387919] [2021-03-12 10:39:57,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states [2021-03-12 10:39:57,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:39:57,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-03-12 10:39:57,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=409, Invalid=3623, Unknown=0, NotChecked=0, Total=4032 [2021-03-12 10:39:57,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:57,585 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:39:57,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 64 states, 64 states have (on average 2.0625) internal successors, (132), 64 states have internal predecessors, (132), 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 10:39:57,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:39:57,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:39:57,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:57,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:39:57,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:39:57,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:39:57,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:57,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:39:57,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-03-12 10:39:57,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-03-12 10:39:57,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-03-12 10:39:57,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-03-12 10:39:57,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2021-03-12 10:39:57,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-03-12 10:39:57,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-03-12 10:39:57,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:39:57,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:39:59,421 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 52 [2021-03-12 10:40:00,191 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 54 [2021-03-12 10:40:00,529 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 58 [2021-03-12 10:40:00,870 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 56 [2021-03-12 10:40:01,786 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 78 [2021-03-12 10:40:02,052 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 65 [2021-03-12 10:40:02,357 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 75 [2021-03-12 10:40:06,877 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-03-12 10:40:07,084 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2021-03-12 10:40:07,367 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2021-03-12 10:40:07,613 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 86 [2021-03-12 10:40:07,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:40:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:40:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:40:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:40:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:40:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:40:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:40:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:40:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-12 10:40:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-12 10:40:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-03-12 10:40:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-03-12 10:40:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-03-12 10:40:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-03-12 10:40:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-12 10:40:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:40:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-03-12 10:40:07,842 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-03-12 10:40:07,842 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:40:07,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:40:07,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1096420030, now seen corresponding path program 14 times [2021-03-12 10:40:07,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:40:07,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85356602] [2021-03-12 10:40:07,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:40:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:40:08,927 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2021-03-12 10:40:09,118 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2021-03-12 10:40:09,299 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-03-12 10:40:09,513 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-03-12 10:40:09,684 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-03-12 10:40:09,841 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-03-12 10:40:10,013 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2021-03-12 10:40:10,184 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2021-03-12 10:40:10,343 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2021-03-12 10:40:10,539 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-03-12 10:40:10,989 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2021-03-12 10:40:11,627 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 42 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:40:11,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85356602] [2021-03-12 10:40:11,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176649540] [2021-03-12 10:40:11,627 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:40:11,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 10:40:11,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:40:11,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 61 conjunts are in the unsatisfiable core [2021-03-12 10:40:11,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:40:12,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-12 10:40:12,557 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:12,565 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:12,566 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:40:12,566 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:27 [2021-03-12 10:40:12,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-12 10:40:12,618 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:12,627 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:12,628 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:40:12,628 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:30 [2021-03-12 10:40:12,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:12,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:12,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2021-03-12 10:40:12,686 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:12,696 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:12,697 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:40:12,697 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:41 [2021-03-12 10:40:12,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2021-03-12 10:40:12,757 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:12,771 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:12,772 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:40:12,772 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:44 [2021-03-12 10:40:12,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:12,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:12,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:12,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:12,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2021-03-12 10:40:12,840 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:12,854 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:12,855 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:40:12,855 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:55 [2021-03-12 10:40:12,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 58 [2021-03-12 10:40:12,938 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:12,953 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:12,954 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:40:12,954 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:58 [2021-03-12 10:40:13,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 72 [2021-03-12 10:40:13,029 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:13,046 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:13,047 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:40:13,047 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:70, output treesize:69 [2021-03-12 10:40:13,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 86 [2021-03-12 10:40:13,133 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:13,151 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:13,152 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:40:13,152 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:81, output treesize:80 [2021-03-12 10:40:13,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 88 [2021-03-12 10:40:13,233 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:13,253 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:13,254 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:40:13,254 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:80, output treesize:79 [2021-03-12 10:40:13,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 102 [2021-03-12 10:40:13,344 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:13,367 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:13,368 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:40:13,368 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:91, output treesize:90 [2021-03-12 10:40:13,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 116 [2021-03-12 10:40:13,473 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:13,497 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:13,498 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:40:13,498 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:102, output treesize:101 [2021-03-12 10:40:13,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 118 [2021-03-12 10:40:13,680 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:13,704 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:13,711 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:40:13,711 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:98, output treesize:97 [2021-03-12 10:40:13,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:13,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 128 [2021-03-12 10:40:13,853 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:13,884 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:13,886 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-12 10:40:13,886 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:105, output treesize:104 [2021-03-12 10:40:14,051 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 314 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:40:14,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:40:14,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 35] total 68 [2021-03-12 10:40:14,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342704402] [2021-03-12 10:40:14,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 68 states [2021-03-12 10:40:14,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:40:14,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2021-03-12 10:40:14,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=467, Invalid=4089, Unknown=0, NotChecked=0, Total=4556 [2021-03-12 10:40:14,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:40:14,053 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:40:14,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 68 states, 68 states have (on average 2.0588235294117645) internal successors, (140), 68 states have internal predecessors, (140), 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 10:40:14,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:40:14,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:40:14,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:40:14,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:40:14,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:40:14,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:40:14,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:40:14,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:40:14,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-03-12 10:40:14,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-03-12 10:40:14,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-03-12 10:40:14,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-03-12 10:40:14,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2021-03-12 10:40:14,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-03-12 10:40:14,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-03-12 10:40:14,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:40:14,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2021-03-12 10:40:14,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:40:15,854 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 46 [2021-03-12 10:40:16,176 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 50 [2021-03-12 10:40:16,812 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 50 [2021-03-12 10:40:16,990 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 51 [2021-03-12 10:40:17,194 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 54 [2021-03-12 10:40:18,600 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 24 [2021-03-12 10:40:19,040 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 23 [2021-03-12 10:40:19,469 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 92 [2021-03-12 10:40:19,768 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 78 [2021-03-12 10:40:20,138 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 88 [2021-03-12 10:40:20,321 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-03-12 10:40:20,495 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2021-03-12 10:40:20,815 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2021-03-12 10:40:25,914 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2021-03-12 10:40:26,468 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 92 [2021-03-12 10:40:26,785 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 95 [2021-03-12 10:40:27,044 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2021-03-12 10:40:27,294 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2021-03-12 10:40:27,476 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-03-12 10:40:27,674 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-03-12 10:40:28,058 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 89 [2021-03-12 10:40:28,422 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 100 [2021-03-12 10:40:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 10:40:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 10:40:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:40:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:40:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:40:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:40:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:40:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 10:40:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-12 10:40:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-12 10:40:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-03-12 10:40:28,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-03-12 10:40:28,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-03-12 10:40:28,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-03-12 10:40:28,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-12 10:40:28,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-12 10:40:28,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-03-12 10:40:28,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-03-12 10:40:28,656 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-03-12 10:40:28,656 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:40:28,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:40:28,656 INFO L82 PathProgramCache]: Analyzing trace with hash -889154558, now seen corresponding path program 15 times [2021-03-12 10:40:28,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:40:28,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199644602] [2021-03-12 10:40:28,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:40:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:40:29,767 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2021-03-12 10:40:29,936 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2021-03-12 10:40:30,128 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2021-03-12 10:40:30,422 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2021-03-12 10:40:30,652 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2021-03-12 10:40:30,849 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2021-03-12 10:40:31,021 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2021-03-12 10:40:31,207 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2021-03-12 10:40:31,377 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-12 10:40:31,612 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2021-03-12 10:40:31,796 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 62 [2021-03-12 10:40:32,024 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2021-03-12 10:40:32,197 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 56 [2021-03-12 10:40:32,357 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 49 [2021-03-12 10:40:33,183 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 70 proven. 296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:40:33,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199644602] [2021-03-12 10:40:33,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720705847] [2021-03-12 10:40:33,184 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:40:33,241 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2021-03-12 10:40:33,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:40:33,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 53 conjunts are in the unsatisfiable core [2021-03-12 10:40:33,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:40:33,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-03-12 10:40:33,709 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:33,715 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:33,716 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:40:33,716 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:20 [2021-03-12 10:40:33,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-12 10:40:33,772 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:33,781 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:33,781 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:40:33,781 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:27 [2021-03-12 10:40:33,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:33,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:40:33,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2021-03-12 10:40:33,849 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:33,859 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:33,860 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:40:33,860 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:38 [2021-03-12 10:40:33,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2021-03-12 10:40:33,924 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:33,935 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:33,935 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:40:33,936 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:41 [2021-03-12 10:40:34,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 48 [2021-03-12 10:40:34,003 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:34,016 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:34,017 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:40:34,017 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:48 [2021-03-12 10:40:34,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 58 [2021-03-12 10:40:34,088 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:34,102 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:34,103 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:40:34,103 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:55 [2021-03-12 10:40:34,244 INFO L354 Elim1Store]: treesize reduction 96, result has 24.4 percent of original size [2021-03-12 10:40:34,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 68 [2021-03-12 10:40:34,246 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:34,266 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:34,268 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-12 10:40:34,268 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:68, output treesize:67 [2021-03-12 10:40:34,457 INFO L354 Elim1Store]: treesize reduction 160, result has 18.4 percent of original size [2021-03-12 10:40:34,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 58 treesize of output 78 [2021-03-12 10:40:34,459 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:34,482 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:34,486 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-03-12 10:40:34,486 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:80, output treesize:79 [2021-03-12 10:40:34,717 INFO L354 Elim1Store]: treesize reduction 232, result has 15.0 percent of original size [2021-03-12 10:40:34,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 65 treesize of output 88 [2021-03-12 10:40:34,719 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:34,747 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:34,752 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-03-12 10:40:34,752 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:92, output treesize:91 [2021-03-12 10:40:35,040 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 38 [2021-03-12 10:40:35,040 INFO L354 Elim1Store]: treesize reduction 312, result has 12.8 percent of original size [2021-03-12 10:40:35,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 15 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 30 case distinctions, treesize of input 72 treesize of output 98 [2021-03-12 10:40:35,042 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:35,075 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:35,082 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-03-12 10:40:35,083 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:104, output treesize:103 [2021-03-12 10:40:35,575 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 42 [2021-03-12 10:40:35,575 INFO L354 Elim1Store]: treesize reduction 400, result has 11.3 percent of original size [2021-03-12 10:40:35,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 15 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 40 case distinctions, treesize of input 79 treesize of output 108 [2021-03-12 10:40:35,578 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:35,614 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:35,624 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-03-12 10:40:35,624 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:116, output treesize:115 [2021-03-12 10:40:37,905 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-03-12 10:40:38,220 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 46 [2021-03-12 10:40:38,220 INFO L354 Elim1Store]: treesize reduction 496, result has 10.1 percent of original size [2021-03-12 10:40:38,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 15 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 51 case distinctions, treesize of input 86 treesize of output 118 [2021-03-12 10:40:38,222 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:40:38,267 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:40:38,277 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2021-03-12 10:40:38,277 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:128, output treesize:127 [2021-03-12 10:41:22,101 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 75 [2021-03-12 10:41:22,596 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 50 [2021-03-12 10:41:22,597 INFO L354 Elim1Store]: treesize reduction 600, result has 9.2 percent of original size [2021-03-12 10:41:22,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 63 case distinctions, treesize of input 93 treesize of output 128 [2021-03-12 10:41:22,599 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:41:22,653 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:41:22,665 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-1 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-03-12 10:41:22,665 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:140, output treesize:139 [2021-03-12 10:42:00,409 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-03-12 10:42:00,426 WARN L340 FreeRefinementEngine]: Global settings require throwing the following exception [2021-03-12 10:42:00,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:42:00,628 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 10:42:00,633 INFO L168 Benchmark]: Toolchain (without parser) took 171018.89 ms. Allocated memory was 255.9 MB in the beginning and 427.8 MB in the end (delta: 172.0 MB). Free memory was 236.4 MB in the beginning and 208.7 MB in the end (delta: 27.7 MB). Peak memory consumption was 201.8 MB. Max. memory is 16.0 GB. [2021-03-12 10:42:00,634 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 10:42:00,634 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.73 ms. Allocated memory is still 255.9 MB. Free memory was 235.9 MB in the beginning and 234.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-12 10:42:00,634 INFO L168 Benchmark]: Boogie Preprocessor took 13.59 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 233.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-12 10:42:00,634 INFO L168 Benchmark]: RCFGBuilder took 241.46 ms. Allocated memory is still 255.9 MB. Free memory was 233.4 MB in the beginning and 237.3 MB in the end (delta: -3.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.0 GB. [2021-03-12 10:42:00,634 INFO L168 Benchmark]: TraceAbstraction took 170738.02 ms. Allocated memory was 255.9 MB in the beginning and 427.8 MB in the end (delta: 172.0 MB). Free memory was 236.7 MB in the beginning and 208.7 MB in the end (delta: 28.0 MB). Peak memory consumption was 200.8 MB. Max. memory is 16.0 GB. [2021-03-12 10:42:00,634 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 0.10 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 18.73 ms. Allocated memory is still 255.9 MB. Free memory was 235.9 MB in the beginning and 234.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.59 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 233.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 241.46 ms. Allocated memory is still 255.9 MB. Free memory was 233.4 MB in the beginning and 237.3 MB in the end (delta: -3.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 170738.02 ms. Allocated memory was 255.9 MB in the beginning and 427.8 MB in the end (delta: 172.0 MB). Free memory was 236.7 MB in the beginning and 208.7 MB in the end (delta: 28.0 MB). Peak memory consumption was 200.8 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...