/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-14 05:36:47,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-14 05:36:47,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-14 05:36:47,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-14 05:36:47,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-14 05:36:47,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-14 05:36:47,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-14 05:36:47,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-14 05:36:47,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-14 05:36:47,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-14 05:36:47,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-14 05:36:47,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-14 05:36:47,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-14 05:36:47,537 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-14 05:36:47,538 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-14 05:36:47,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-14 05:36:47,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-14 05:36:47,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-14 05:36:47,542 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-14 05:36:47,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-14 05:36:47,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-14 05:36:47,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-14 05:36:47,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-14 05:36:47,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-14 05:36:47,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-14 05:36:47,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-14 05:36:47,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-14 05:36:47,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-14 05:36:47,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-14 05:36:47,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-14 05:36:47,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-14 05:36:47,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-14 05:36:47,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-14 05:36:47,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-14 05:36:47,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-14 05:36:47,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-14 05:36:47,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-14 05:36:47,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-14 05:36:47,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-14 05:36:47,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-14 05:36:47,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-14 05:36:47,573 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Random42.epf [2021-06-14 05:36:47,603 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-14 05:36:47,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-14 05:36:47,604 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-14 05:36:47,604 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-14 05:36:47,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-14 05:36:47,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-14 05:36:47,606 INFO L138 SettingsManager]: * Use SBE=true [2021-06-14 05:36:47,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-14 05:36:47,607 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-14 05:36:47,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-14 05:36:47,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-14 05:36:47,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-14 05:36:47,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-14 05:36:47,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-14 05:36:47,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-14 05:36:47,608 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-14 05:36:47,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-14 05:36:47,609 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-14 05:36:47,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-14 05:36:47,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-14 05:36:47,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-14 05:36:47,609 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-14 05:36:47,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-14 05:36:47,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 05:36:47,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-14 05:36:47,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-14 05:36:47,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-14 05:36:47,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-14 05:36:47,610 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-14 05:36:47,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-14 05:36:47,610 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-14 05:36:47,610 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-14 05:36:47,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-14 05:36:47,611 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-14 05:36:47,611 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-14 05:36:47,611 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-14 05:36:47,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-14 05:36:47,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-14 05:36:47,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-14 05:36:47,956 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-14 05:36:47,958 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-14 05:36:47,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl [2021-06-14 05:36:47,959 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl' [2021-06-14 05:36:47,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-14 05:36:47,983 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-14 05:36:47,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-14 05:36:47,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-14 05:36:47,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-14 05:36:47,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:36:47" (1/1) ... [2021-06-14 05:36:48,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:36:47" (1/1) ... [2021-06-14 05:36:48,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-14 05:36:48,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-14 05:36:48,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-14 05:36:48,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-14 05:36:48,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:36:47" (1/1) ... [2021-06-14 05:36:48,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:36:47" (1/1) ... [2021-06-14 05:36:48,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:36:47" (1/1) ... [2021-06-14 05:36:48,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:36:47" (1/1) ... [2021-06-14 05:36:48,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:36:47" (1/1) ... [2021-06-14 05:36:48,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:36:47" (1/1) ... [2021-06-14 05:36:48,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:36:47" (1/1) ... [2021-06-14 05:36:48,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-14 05:36:48,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-14 05:36:48,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-14 05:36:48,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-14 05:36:48,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:36:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 05:36:48,082 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-14 05:36:48,082 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-14 05:36:48,082 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-14 05:36:48,082 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-14 05:36:48,082 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-14 05:36:48,082 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-14 05:36:48,083 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-14 05:36:48,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-14 05:36:48,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-14 05:36:48,083 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-14 05:36:48,083 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-14 05:36:48,083 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-14 05:36:48,084 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-14 05:36:48,328 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-14 05:36:48,329 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-14 05:36:48,330 INFO L202 PluginConnector]: Adding new model dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 05:36:48 BoogieIcfgContainer [2021-06-14 05:36:48,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-14 05:36:48,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-14 05:36:48,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-14 05:36:48,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-14 05:36:48,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:36:47" (1/2) ... [2021-06-14 05:36:48,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1c78d0 and model type dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 05:36:48, skipping insertion in model container [2021-06-14 05:36:48,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 05:36:48" (2/2) ... [2021-06-14 05:36:48,336 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product.wvr.bpl [2021-06-14 05:36:48,340 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-14 05:36:48,340 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-14 05:36:48,340 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-14 05:36:48,341 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-14 05:36:48,399 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-14 05:36:48,418 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-14 05:36:48,486 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-14 05:36:48,486 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-14 05:36:48,486 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-14 05:36:48,486 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-14 05:36:48,486 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-14 05:36:48,487 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-14 05:36:48,487 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-14 05:36:48,487 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-14 05:36:48,527 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:36:48,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:36:48,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1195495559, now seen corresponding path program 1 times [2021-06-14 05:36:48,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:36:48,539 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287302415] [2021-06-14 05:36:48,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:36:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:36:48,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:36:48,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:36:48,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287302415] [2021-06-14 05:36:48,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287302415] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-14 05:36:48,711 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-14 05:36:48,712 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-14 05:36:48,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127281041] [2021-06-14 05:36:48,716 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-14 05:36:48,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:36:48,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-14 05:36:48,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-14 05:36:48,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:36:48,730 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:36:48,733 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 05:36:48,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:36:48,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:36:48,750 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-14 05:36:48,750 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:36:48,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:36:48,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1677874473, now seen corresponding path program 1 times [2021-06-14 05:36:48,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:36:48,755 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193224674] [2021-06-14 05:36:48,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:36:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:36:48,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 05:36:48,830 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:36:48,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193224674] [2021-06-14 05:36:48,830 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193224674] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-14 05:36:48,830 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-14 05:36:48,830 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-14 05:36:48,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595235303] [2021-06-14 05:36:48,832 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-14 05:36:48,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:36:48,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-14 05:36:48,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-14 05:36:48,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:36:48,833 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:36:48,833 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 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) [2021-06-14 05:36:48,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:36:48,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:36:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:36:48,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 05:36:48,892 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-14 05:36:48,892 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:36:48,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:36:48,893 INFO L82 PathProgramCache]: Analyzing trace with hash -883932369, now seen corresponding path program 1 times [2021-06-14 05:36:48,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:36:48,893 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037994850] [2021-06-14 05:36:48,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:36:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:36:48,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 05:36:48,920 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:36:48,920 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037994850] [2021-06-14 05:36:48,920 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037994850] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-14 05:36:48,920 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-14 05:36:48,921 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-14 05:36:48,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189633527] [2021-06-14 05:36:48,921 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-14 05:36:48,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:36:48,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-14 05:36:48,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-14 05:36:48,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:36:48,922 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:36:48,922 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 05:36:48,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:36:48,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 05:36:48,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:36:48,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:36:48,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 05:36:48,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:36:48,958 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-14 05:36:48,958 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:36:48,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:36:48,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1381480519, now seen corresponding path program 1 times [2021-06-14 05:36:48,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:36:48,959 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033946128] [2021-06-14 05:36:48,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:36:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:36:49,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:36:49,149 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:36:49,150 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033946128] [2021-06-14 05:36:49,150 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033946128] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:36:49,150 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442070777] [2021-06-14 05:36:49,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:36:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:36:49,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-14 05:36:49,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:36:49,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-06-14 05:36:49,363 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-14 05:36:49,369 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:36:49,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-06-14 05:36:49,376 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-14 05:36:49,382 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:36:49,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-06-14 05:36:49,386 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-14 05:36:49,390 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:36:49,392 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-14 05:36:49,393 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:31, output treesize:3 [2021-06-14 05:36:49,416 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:36:49,417 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442070777] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:36:49,417 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:36:49,417 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-14 05:36:49,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17438629] [2021-06-14 05:36:49,417 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-14 05:36:49,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:36:49,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-14 05:36:49,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-06-14 05:36:49,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:36:49,419 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:36:49,419 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 05:36:49,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:36:49,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 05:36:49,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:36:49,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:36:49,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:36:49,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 05:36:49,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:36:49,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 05:36:49,844 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:36:49,845 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:36:49,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:36:49,845 INFO L82 PathProgramCache]: Analyzing trace with hash -18318057, now seen corresponding path program 2 times [2021-06-14 05:36:49,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:36:49,846 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760729004] [2021-06-14 05:36:49,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:36:49,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:36:49,919 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:36:49,919 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:36:49,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760729004] [2021-06-14 05:36:49,920 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760729004] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:36:49,920 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040086830] [2021-06-14 05:36:49,920 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:36:49,953 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 05:36:49,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 05:36:49,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-14 05:36:49,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:36:50,027 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:36:50,028 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040086830] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:36:50,028 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:36:50,028 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2021-06-14 05:36:50,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830727690] [2021-06-14 05:36:50,028 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-14 05:36:50,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:36:50,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-14 05:36:50,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-06-14 05:36:50,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:36:50,029 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:36:50,029 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 05:36:50,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:36:50,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 05:36:50,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:36:50,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 05:36:50,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:36:50,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:36:50,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 05:36:50,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:36:50,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 05:36:50,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 05:36:50,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:36:50,364 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:36:50,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:36:50,365 INFO L82 PathProgramCache]: Analyzing trace with hash 13306101, now seen corresponding path program 3 times [2021-06-14 05:36:50,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:36:50,365 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356029153] [2021-06-14 05:36:50,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:36:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:36:50,729 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:36:50,730 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:36:50,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356029153] [2021-06-14 05:36:50,731 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356029153] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:36:50,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586376950] [2021-06-14 05:36:50,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:36:50,794 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-14 05:36:50,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 05:36:50,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-14 05:36:50,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:36:50,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:36:50,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 39 [2021-06-14 05:36:50,991 INFO L550 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-06-14 05:36:50,999 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:36:51,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:36:51,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2021-06-14 05:36:51,008 INFO L550 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-06-14 05:36:51,016 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:36:51,026 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:36:51,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-06-14 05:36:51,033 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-14 05:36:51,042 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:36:51,046 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-14 05:36:51,046 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:57, output treesize:3 [2021-06-14 05:36:51,075 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:36:51,075 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586376950] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:36:51,075 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:36:51,075 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 15 [2021-06-14 05:36:51,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42652101] [2021-06-14 05:36:51,076 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-14 05:36:51,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:36:51,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-14 05:36:51,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-06-14 05:36:51,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:36:51,078 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:36:51,078 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 15 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 05:36:51,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:36:51,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 05:36:51,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:36:51,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 05:36:51,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 05:36:51,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:36:51,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:36:51,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 05:36:51,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:36:51,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 05:36:51,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 05:36:51,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:36:51,678 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:36:51,678 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:36:51,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:36:51,679 INFO L82 PathProgramCache]: Analyzing trace with hash 438539825, now seen corresponding path program 4 times [2021-06-14 05:36:51,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:36:51,679 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076485824] [2021-06-14 05:36:51,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:36:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:36:51,773 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:36:51,774 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:36:51,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076485824] [2021-06-14 05:36:51,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076485824] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:36:51,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355256599] [2021-06-14 05:36:51,774 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:36:51,827 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 05:36:51,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 05:36:51,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-14 05:36:51,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:36:51,928 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:36:51,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355256599] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:36:51,929 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:36:51,929 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2021-06-14 05:36:51,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566936007] [2021-06-14 05:36:51,929 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-14 05:36:51,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:36:51,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-14 05:36:51,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-06-14 05:36:51,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:36:51,930 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:36:51,930 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 05:36:51,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:36:51,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 05:36:51,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:36:51,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 05:36:51,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 05:36:51,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:36:51,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:36:52,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:36:52,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 05:36:52,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:36:52,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 05:36:52,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 05:36:52,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:36:52,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 05:36:52,356 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-06-14 05:36:52,357 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:36:52,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:36:52,357 INFO L82 PathProgramCache]: Analyzing trace with hash 967066511, now seen corresponding path program 5 times [2021-06-14 05:36:52,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:36:52,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915708103] [2021-06-14 05:36:52,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:36:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:36:52,446 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:36:52,446 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:36:52,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915708103] [2021-06-14 05:36:52,447 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915708103] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:36:52,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919631170] [2021-06-14 05:36:52,447 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:36:52,481 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-14 05:36:52,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 05:36:52,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-14 05:36:52,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:36:52,589 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:36:52,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919631170] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:36:52,589 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:36:52,589 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 14 [2021-06-14 05:36:52,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507912313] [2021-06-14 05:36:52,590 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-14 05:36:52,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:36:52,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-14 05:36:52,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-06-14 05:36:52,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:36:52,591 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:36:52,591 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 05:36:52,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:36:52,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 05:36:52,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:36:52,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 05:36:52,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 05:36:52,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:36:52,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 05:36:52,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:36:52,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:36:52,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 05:36:52,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:36:52,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 05:36:52,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 05:36:52,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:36:52,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 05:36:52,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-14 05:36:53,024 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:36:53,025 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:36:53,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:36:53,025 INFO L82 PathProgramCache]: Analyzing trace with hash 2075070829, now seen corresponding path program 6 times [2021-06-14 05:36:53,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:36:53,025 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524533682] [2021-06-14 05:36:53,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:36:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:36:53,603 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:36:53,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:36:53,604 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524533682] [2021-06-14 05:36:53,604 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524533682] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:36:53,604 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099634906] [2021-06-14 05:36:53,604 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:36:53,645 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-06-14 05:36:53,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 05:36:53,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 40 conjunts are in the unsatisfiable core [2021-06-14 05:36:53,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:36:54,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:36:54,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:36:54,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:36:54,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:36:54,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:36:54,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:36:54,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 75 [2021-06-14 05:36:54,056 INFO L550 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-06-14 05:36:54,064 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:36:54,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:36:54,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:36:54,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:36:54,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:36:54,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:36:54,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:36:54,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 47 [2021-06-14 05:36:54,090 INFO L550 ElimStorePlain]: Start of recursive call 3: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-06-14 05:36:54,097 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:36:54,129 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:36:54,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 87 [2021-06-14 05:37:07,225 WARN L205 SmtUtils]: Spent 3.86 s on a formula simplification. DAG size of input: 5504 DAG size of output: 5502 [2021-06-14 05:37:12,477 WARN L205 SmtUtils]: Spent 4.01 s on a formula simplification. DAG size of input: 5640 DAG size of output: 5591 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown