/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-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 20:54:49,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 20:54:49,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 20:54:49,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-14 20:54:49,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-14 20:54:49,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-14 20:54:49,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-14 20:54:49,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-14 20:54:49,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-14 20:54:49,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-14 20:54:49,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-14 20:54:49,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-14 20:54:49,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 20:54:49,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 20:54:49,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 20:54:49,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 20:54:49,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 20:54:49,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 20:54:49,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 20:54:49,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 20:54:49,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 20:54:49,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 20:54:49,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 20:54:49,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 20:54:49,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 20:54:49,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 20:54:49,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 20:54:49,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 20:54:49,592 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-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-07-14 20:54:49,618 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 20:54:49,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 20:54:49,619 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 20:54:49,619 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 20:54:49,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 20:54:49,621 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 20:54:49,621 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 20:54:49,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 20:54:49,621 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 20:54:49,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 20:54:49,622 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 20:54:49,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 20:54:49,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 20:54:49,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 20:54:49,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 20:54:49,622 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 20:54:49,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 20:54:49,622 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 20:54:49,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 20:54:49,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 20:54:49,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 20:54:49,623 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 20:54:49,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 20:54:49,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 20:54:49,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 20:54:49,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 20:54:49,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 20:54:49,639 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 20:54:49,639 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-14 20:54:49,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 20:54:49,639 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 20:54:49,639 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 20:54:49,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 20:54:49,640 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 20:54:49,640 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-14 20:54:49,640 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 20:54:49,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 20:54:49,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 20:54:49,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 20:54:49,884 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 20:54:49,885 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 20:54:49,885 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1.wvr.bpl [2021-07-14 20:54:49,886 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1.wvr.bpl' [2021-07-14 20:54:49,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 20:54:49,903 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 20:54:49,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 20:54:49,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 20:54:49,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 20:54:49,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:54:49" (1/1) ... [2021-07-14 20:54:49,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:54:49" (1/1) ... [2021-07-14 20:54:49,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 20:54:49,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 20:54:49,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 20:54:49,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 20:54:49,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:54:49" (1/1) ... [2021-07-14 20:54:49,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:54:49" (1/1) ... [2021-07-14 20:54:49,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:54:49" (1/1) ... [2021-07-14 20:54:49,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:54:49" (1/1) ... [2021-07-14 20:54:49,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:54:49" (1/1) ... [2021-07-14 20:54:49,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:54:49" (1/1) ... [2021-07-14 20:54:49,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:54:49" (1/1) ... [2021-07-14 20:54:49,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 20:54:49,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 20:54:49,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 20:54:49,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 20:54:49,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:54:49" (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 [2021-07-14 20:54:50,003 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 20:54:50,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 20:54:50,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 20:54:50,004 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 20:54:50,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 20:54:50,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 20:54:50,005 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 20:54:50,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 20:54:50,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 20:54:50,005 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 20:54:50,005 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 20:54:50,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 20:54:50,005 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-07-14 20:54:50,006 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-07-14 20:54:50,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-07-14 20:54:50,006 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 20:54:50,221 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 20:54:50,222 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-07-14 20:54:50,222 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-07-14 20:54:50,223 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-07-14 20:54:50,223 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2021-07-14 20:54:50,223 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread4EXIT is neither atomic block end nor error location. [2021-07-14 20:54:50,224 INFO L202 PluginConnector]: Adding new model parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 08:54:50 BoogieIcfgContainer [2021-07-14 20:54:50,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 20:54:50,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 20:54:50,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 20:54:50,227 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 20:54:50,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:54:49" (1/2) ... [2021-07-14 20:54:50,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6683e953 and model type parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 08:54:50, skipping insertion in model container [2021-07-14 20:54:50,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 08:54:50" (2/2) ... [2021-07-14 20:54:50,229 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-sum-1.wvr.bpl [2021-07-14 20:54:50,233 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 20:54:50,233 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 20:54:50,233 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 20:54:50,233 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 20:54:50,267 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-14 20:54:50,286 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 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) [2021-07-14 20:54:50,334 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 20:54:50,334 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 20:54:50,334 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 20:54:50,334 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 20:54:50,334 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 20:54:50,334 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 20:54:50,335 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 20:54:50,335 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 20:54:50,516 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:54:50,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:54:50,524 INFO L82 PathProgramCache]: Analyzing trace with hash 907836535, now seen corresponding path program 1 times [2021-07-14 20:54:50,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:54:50,530 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476697253] [2021-07-14 20:54:50,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:54:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:54:50,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:54:50,727 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:54:50,728 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476697253] [2021-07-14 20:54:50,729 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476697253] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:54:50,729 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879527814] [2021-07-14 20:54:50,729 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 [2021-07-14 20:54:50,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:54:50,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 20:54:50,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:54:50,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:54:50,866 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879527814] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 20:54:50,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-14 20:54:50,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-07-14 20:54:50,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711954453] [2021-07-14 20:54:50,870 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 20:54:50,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:54:50,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 20:54:50,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-07-14 20:54:50,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:54:50,880 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:54:50,881 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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) [2021-07-14 20:54:50,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:54:50,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:54:51,123 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-14 20:54:51,124 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:54:51,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:54:51,124 INFO L82 PathProgramCache]: Analyzing trace with hash -258129160, now seen corresponding path program 1 times [2021-07-14 20:54:51,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:54:51,125 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800862462] [2021-07-14 20:54:51,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:54:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:54:51,180 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:54:51,180 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:54:51,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800862462] [2021-07-14 20:54:51,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800862462] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:54:51,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930209586] [2021-07-14 20:54:51,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-14 20:54:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:54:51,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-14 20:54:51,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:54:51,327 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:54:51,327 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930209586] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:54:51,328 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:54:51,328 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2021-07-14 20:54:51,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569625059] [2021-07-14 20:54:51,328 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 20:54:51,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:54:51,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 20:54:51,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-07-14 20:54:51,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:54:51,329 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:54:51,329 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:54:51,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:54:51,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:54:51,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:54:51,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:54:51,618 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:54:51,618 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:54:51,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:54:51,619 INFO L82 PathProgramCache]: Analyzing trace with hash 235302201, now seen corresponding path program 2 times [2021-07-14 20:54:51,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:54:51,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420304407] [2021-07-14 20:54:51,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:54:51,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:54:51,800 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:54:51,800 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:54:51,801 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420304407] [2021-07-14 20:54:51,801 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420304407] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:54:51,801 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248847170] [2021-07-14 20:54:51,802 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 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 [2021-07-14 20:54:51,848 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 20:54:51,849 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:54:51,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 29 conjunts are in the unsatisfiable core [2021-07-14 20:54:51,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:54:52,061 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:54:52,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 41 [2021-07-14 20:54:52,074 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 20:54:52,086 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:54:52,088 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 20:54:52,089 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:36 [2021-07-14 20:54:52,210 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:54:52,211 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248847170] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:54:52,211 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:54:52,211 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-07-14 20:54:52,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754117788] [2021-07-14 20:54:52,211 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-14 20:54:52,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:54:52,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-14 20:54:52,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-07-14 20:54:52,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:54:52,212 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:54:52,213 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.0) internal successors, (36), 17 states have internal predecessors, (36), 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) [2021-07-14 20:54:52,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:54:52,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:54:52,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:54:52,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:54:52,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:54:52,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:54:52,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:54:52,921 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:54:52,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:54:52,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1976437562, now seen corresponding path program 3 times [2021-07-14 20:54:52,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:54:52,922 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702044193] [2021-07-14 20:54:52,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:54:52,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:54:52,968 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:54:52,969 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:54:52,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702044193] [2021-07-14 20:54:52,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702044193] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:54:52,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080015159] [2021-07-14 20:54:52,969 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 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 [2021-07-14 20:54:53,011 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-14 20:54:53,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:54:53,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-14 20:54:53,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:54:53,090 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:54:53,090 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080015159] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:54:53,090 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:54:53,090 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 9 [2021-07-14 20:54:53,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971298312] [2021-07-14 20:54:53,090 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-14 20:54:53,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:54:53,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-14 20:54:53,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-07-14 20:54:53,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:54:53,091 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:54:53,091 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:54:53,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:54:53,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:54:53,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:54:53,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:54:53,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:54:53,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:54:53,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:54:53,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:54:53,380 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-14 20:54:53,381 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:54:53,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:54:53,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1411788348, now seen corresponding path program 4 times [2021-07-14 20:54:53,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:54:53,382 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441290189] [2021-07-14 20:54:53,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:54:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:54:53,446 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:54:53,447 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:54:53,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441290189] [2021-07-14 20:54:53,447 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441290189] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:54:53,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529893926] [2021-07-14 20:54:53,447 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 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 [2021-07-14 20:54:53,488 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 20:54:53,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:54:53,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-14 20:54:53,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:54:53,563 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:54:53,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529893926] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:54:53,563 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:54:53,563 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2021-07-14 20:54:53,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272773233] [2021-07-14 20:54:53,564 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-14 20:54:53,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:54:53,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-14 20:54:53,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-07-14 20:54:53,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:54:53,565 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:54:53,567 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2021-07-14 20:54:53,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:54:53,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:54:53,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:54:53,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:54:53,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:54:53,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:54:53,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:54:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:54:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:54:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:54:53,860 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:54:53,861 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:54:53,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:54:53,861 INFO L82 PathProgramCache]: Analyzing trace with hash -668629123, now seen corresponding path program 5 times [2021-07-14 20:54:53,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:54:53,861 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986566605] [2021-07-14 20:54:53,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:54:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:54:54,312 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:54:54,313 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:54:54,313 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986566605] [2021-07-14 20:54:54,313 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986566605] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:54:54,313 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360009136] [2021-07-14 20:54:54,313 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 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 [2021-07-14 20:54:54,368 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-07-14 20:54:54,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:54:54,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 55 conjunts are in the unsatisfiable core [2021-07-14 20:54:54,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:54:54,849 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:54:54,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 35 treesize of output 75 [2021-07-14 20:54:54,867 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 20:54:54,943 INFO L628 ElimStorePlain]: treesize reduction 34, result has 67.6 percent of original size [2021-07-14 20:54:54,945 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 20:54:54,945 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:71 [2021-07-14 20:54:55,188 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:54:55,188 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360009136] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:54:55,188 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:54:55,189 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-07-14 20:54:55,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846958034] [2021-07-14 20:54:55,189 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-07-14 20:54:55,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:54:55,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-07-14 20:54:55,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1061, Unknown=0, NotChecked=0, Total=1190 [2021-07-14 20:54:55,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:54:55,190 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:54:55,190 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 1.6) internal successors, (56), 34 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:54:55,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:54:55,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:54:55,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:54:55,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:54:55,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:54:55,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:54:55,401 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2021-07-14 20:54:56,231 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-07-14 20:54:56,460 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 87 [2021-07-14 20:54:57,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:54:57,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:54:57,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:54:57,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:54:57,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:54:57,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:54:57,408 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:54:57,409 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:54:57,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:54:57,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1504941182, now seen corresponding path program 6 times [2021-07-14 20:54:57,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:54:57,410 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459674069] [2021-07-14 20:54:57,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:54:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:54:57,486 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:54:57,486 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:54:57,486 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459674069] [2021-07-14 20:54:57,486 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459674069] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:54:57,486 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780001726] [2021-07-14 20:54:57,487 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 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 [2021-07-14 20:54:57,525 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-07-14 20:54:57,526 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:54:57,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 12 conjunts are in the unsatisfiable core [2021-07-14 20:54:57,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:54:57,619 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:54:57,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780001726] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:54:57,619 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:54:57,619 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 13 [2021-07-14 20:54:57,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835288585] [2021-07-14 20:54:57,621 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 20:54:57,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:54:57,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 20:54:57,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-07-14 20:54:57,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:54:57,621 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:54:57,622 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 13 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) [2021-07-14 20:54:57,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:54:57,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:54:57,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:54:57,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:54:57,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:54:57,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:54:57,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:54:57,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:54:57,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:54:57,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:54:57,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:54:57,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:54:57,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:54:57,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:54:57,983 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-07-14 20:54:57,984 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:54:57,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:54:57,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1272804736, now seen corresponding path program 7 times [2021-07-14 20:54:57,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:54:57,984 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852902289] [2021-07-14 20:54:57,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:54:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:54:58,050 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 9 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:54:58,050 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:54:58,050 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852902289] [2021-07-14 20:54:58,050 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852902289] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:54:58,050 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141362448] [2021-07-14 20:54:58,050 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 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 [2021-07-14 20:54:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:54:58,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-14 20:54:58,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:54:58,177 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 26 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:54:58,177 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141362448] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:54:58,177 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:54:58,178 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 11 [2021-07-14 20:54:58,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605278656] [2021-07-14 20:54:58,180 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-14 20:54:58,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:54:58,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-14 20:54:58,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2021-07-14 20:54:58,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:54:58,181 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:54:58,181 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:54:58,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:54:58,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:54:58,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:54:58,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:54:58,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:54:58,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:54:58,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:54:58,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:54:58,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:54:58,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:54:58,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:54:58,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:54:58,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:54:58,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:54:58,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:54:58,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:54:58,472 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-07-14 20:54:58,473 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:54:58,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:54:58,473 INFO L82 PathProgramCache]: Analyzing trace with hash -791413311, now seen corresponding path program 8 times [2021-07-14 20:54:58,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:54:58,474 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186142908] [2021-07-14 20:54:58,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:54:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:54:59,186 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:54:59,186 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:54:59,186 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186142908] [2021-07-14 20:54:59,187 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186142908] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:54:59,187 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297430843] [2021-07-14 20:54:59,187 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 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 [2021-07-14 20:54:59,236 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 20:54:59,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:54:59,238 WARN L261 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 79 conjunts are in the unsatisfiable core [2021-07-14 20:54:59,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:55:00,198 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:55:00,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 47 treesize of output 111 [2021-07-14 20:55:00,284 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 20:55:00,323 INFO L628 ElimStorePlain]: treesize reduction 481, result has 6.2 percent of original size [2021-07-14 20:55:00,324 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 20:55:00,324 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:32 [2021-07-14 20:55:00,484 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:55:00,484 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297430843] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:55:00,484 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:55:00,485 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2021-07-14 20:55:00,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567499806] [2021-07-14 20:55:00,485 INFO L462 AbstractCegarLoop]: Interpolant automaton has 51 states [2021-07-14 20:55:00,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:55:00,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-07-14 20:55:00,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=2293, Unknown=0, NotChecked=0, Total=2550 [2021-07-14 20:55:00,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:55:00,486 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:55:00,487 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 51 states, 51 states have (on average 1.411764705882353) internal successors, (72), 50 states have internal predecessors, (72), 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) [2021-07-14 20:55:00,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:55:00,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:55:00,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:00,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:55:00,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:55:00,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:55:00,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:55:00,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:55:00,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:55:00,736 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-07-14 20:55:02,585 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-07-14 20:55:02,805 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-07-14 20:55:03,058 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-07-14 20:55:03,418 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 124 [2021-07-14 20:55:03,597 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-07-14 20:55:04,461 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-07-14 20:55:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:55:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:55:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:55:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:55:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:55:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:55:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:55:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:55:04,663 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-07-14 20:55:04,664 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:55:04,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:55:04,664 INFO L82 PathProgramCache]: Analyzing trace with hash -230065726, now seen corresponding path program 9 times [2021-07-14 20:55:04,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:55:04,664 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801964470] [2021-07-14 20:55:04,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:55:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:55:04,770 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 30 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:55:04,770 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:55:04,770 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801964470] [2021-07-14 20:55:04,770 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801964470] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:55:04,770 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588683297] [2021-07-14 20:55:04,770 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 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 [2021-07-14 20:55:04,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-07-14 20:55:04,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:55:04,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-14 20:55:04,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:55:04,897 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 49 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:55:04,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588683297] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:55:04,898 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:55:04,898 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9] total 17 [2021-07-14 20:55:04,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087233234] [2021-07-14 20:55:04,900 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-14 20:55:04,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:55:04,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-14 20:55:04,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2021-07-14 20:55:04,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:55:04,900 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:55:04,901 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 17 states have internal predecessors, (70), 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) [2021-07-14 20:55:04,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:55:04,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:55:04,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:04,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:55:04,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:55:04,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:55:04,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:55:04,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:55:04,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:55:04,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:55:05,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:55:05,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:55:05,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:05,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:55:05,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:55:05,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:55:05,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:55:05,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:55:05,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:55:05,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:55:05,320 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-07-14 20:55:05,321 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:55:05,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:55:05,322 INFO L82 PathProgramCache]: Analyzing trace with hash 817305796, now seen corresponding path program 10 times [2021-07-14 20:55:05,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:55:05,322 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521463938] [2021-07-14 20:55:05,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:55:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:55:05,400 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 25 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:55:05,400 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:55:05,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521463938] [2021-07-14 20:55:05,400 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521463938] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:55:05,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669969825] [2021-07-14 20:55:05,400 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 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 [2021-07-14 20:55:05,442 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 20:55:05,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:55:05,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 18 conjunts are in the unsatisfiable core [2021-07-14 20:55:05,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:55:05,538 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 50 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:55:05,539 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669969825] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:55:05,539 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:55:05,539 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 13 [2021-07-14 20:55:05,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446334681] [2021-07-14 20:55:05,539 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 20:55:05,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:55:05,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 20:55:05,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=109, Unknown=0, NotChecked=0, Total=182 [2021-07-14 20:55:05,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:55:05,545 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:55:05,545 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 13 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) [2021-07-14 20:55:05,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:55:05,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:55:05,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:05,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:55:05,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:55:05,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:55:05,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:55:05,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:55:05,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:55:05,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:55:05,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:55:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:55:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:55:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:55:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:55:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:55:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:55:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:55:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:55:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:55:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:55:05,868 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-07-14 20:55:05,868 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:55:05,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:55:05,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1610993669, now seen corresponding path program 11 times [2021-07-14 20:55:05,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:55:05,869 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197345505] [2021-07-14 20:55:05,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:55:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:55:06,940 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:55:06,940 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:55:06,940 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197345505] [2021-07-14 20:55:06,941 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197345505] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:55:06,941 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101670670] [2021-07-14 20:55:06,941 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 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 [2021-07-14 20:55:06,986 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-07-14 20:55:06,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:55:06,988 WARN L261 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 103 conjunts are in the unsatisfiable core [2021-07-14 20:55:06,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:55:08,579 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:55:08,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 21 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 15 case distinctions, treesize of input 59 treesize of output 147 [2021-07-14 20:55:08,796 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 256 [2021-07-14 20:55:08,984 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 20:55:09,186 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 23 [2021-07-14 20:55:09,187 INFO L628 ElimStorePlain]: treesize reduction 3257, result has 1.0 percent of original size [2021-07-14 20:55:09,187 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 20:55:09,187 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:32 [2021-07-14 20:55:09,375 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:55:09,375 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101670670] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:55:09,375 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:55:09,375 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66 [2021-07-14 20:55:09,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270882673] [2021-07-14 20:55:09,376 INFO L462 AbstractCegarLoop]: Interpolant automaton has 67 states [2021-07-14 20:55:09,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:55:09,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-07-14 20:55:09,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=393, Invalid=4029, Unknown=0, NotChecked=0, Total=4422 [2021-07-14 20:55:09,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:55:09,377 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:55:09,378 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 67 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 66 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) [2021-07-14 20:55:09,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:55:09,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:55:09,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:09,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:55:09,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:55:09,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:55:09,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:55:09,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:55:09,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:55:09,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:55:09,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:55:09,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:55:09,722 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2021-07-14 20:55:09,996 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-07-14 20:55:10,291 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2021-07-14 20:55:10,538 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-07-14 20:55:10,783 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-07-14 20:55:11,025 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-07-14 20:55:11,298 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-07-14 20:55:11,559 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-07-14 20:55:11,862 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-07-14 20:55:12,189 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-07-14 20:55:12,452 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-07-14 20:55:12,768 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-07-14 20:55:13,110 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-07-14 20:55:13,416 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-07-14 20:55:13,793 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-07-14 20:55:14,109 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-07-14 20:55:14,519 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-07-14 20:55:15,106 WARN L205 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 173 [2021-07-14 20:55:15,382 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-07-14 20:55:16,559 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-07-14 20:55:16,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:55:16,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:55:16,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:16,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:55:16,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:55:16,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:55:16,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:55:16,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:55:16,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:55:16,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:55:16,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:55:16,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 20:55:16,778 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-07-14 20:55:16,778 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:55:16,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:55:16,779 INFO L82 PathProgramCache]: Analyzing trace with hash -159139066, now seen corresponding path program 12 times [2021-07-14 20:55:16,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:55:16,779 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42108231] [2021-07-14 20:55:16,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:55:16,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:55:16,919 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 56 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:55:16,919 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:55:16,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42108231] [2021-07-14 20:55:16,919 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42108231] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:55:16,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428849898] [2021-07-14 20:55:16,919 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 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 [2021-07-14 20:55:16,964 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2021-07-14 20:55:16,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:55:16,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 20 conjunts are in the unsatisfiable core [2021-07-14 20:55:16,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:55:17,054 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 81 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:55:17,054 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428849898] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:55:17,054 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:55:17,054 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11] total 21 [2021-07-14 20:55:17,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817406802] [2021-07-14 20:55:17,057 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-14 20:55:17,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:55:17,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-14 20:55:17,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2021-07-14 20:55:17,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:55:17,058 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:55:17,058 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 3.727272727272727) internal successors, (82), 21 states have internal predecessors, (82), 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) [2021-07-14 20:55:17,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:55:17,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:55:17,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:17,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:55:17,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:55:17,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:55:17,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:55:17,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:55:17,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:55:17,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:55:17,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:55:17,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 20:55:17,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:55:17,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:55:17,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:55:17,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:17,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:55:17,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:55:17,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:55:17,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:55:17,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:55:17,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:55:17,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:55:17,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:55:17,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 20:55:17,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:17,537 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:55:17,537 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:55:17,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:55:17,538 INFO L82 PathProgramCache]: Analyzing trace with hash 531044360, now seen corresponding path program 13 times [2021-07-14 20:55:17,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:55:17,538 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304530526] [2021-07-14 20:55:17,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:55:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:55:17,631 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 49 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:55:17,631 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:55:17,631 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304530526] [2021-07-14 20:55:17,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304530526] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:55:17,632 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123090153] [2021-07-14 20:55:17,632 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 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 [2021-07-14 20:55:17,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:55:17,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 22 conjunts are in the unsatisfiable core [2021-07-14 20:55:17,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:55:17,759 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 82 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:55:17,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123090153] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:55:17,759 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:55:17,759 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 15 [2021-07-14 20:55:17,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940665179] [2021-07-14 20:55:17,760 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-14 20:55:17,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:55:17,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-14 20:55:17,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=142, Unknown=0, NotChecked=0, Total=240 [2021-07-14 20:55:17,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:55:17,760 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:55:17,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 4.5) internal successors, (72), 15 states have internal predecessors, (72), 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) [2021-07-14 20:55:17,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:55:17,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:55:17,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:17,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:55:17,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:55:17,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:55:17,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:55:17,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:55:17,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:55:17,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:55:17,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:55:17,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 20:55:17,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:17,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:55:17,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:55:17,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:55:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:55:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:55:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:55:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:55:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:55:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:55:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:55:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:55:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 20:55:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:55:18,092 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:55:18,093 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:55:18,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:55:18,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1313931703, now seen corresponding path program 14 times [2021-07-14 20:55:18,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:55:18,093 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872646750] [2021-07-14 20:55:18,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:55:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:55:19,647 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:55:19,647 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:55:19,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872646750] [2021-07-14 20:55:19,647 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872646750] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:55:19,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604276091] [2021-07-14 20:55:19,647 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 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 [2021-07-14 20:55:19,694 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 20:55:19,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:55:19,696 WARN L261 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 127 conjunts are in the unsatisfiable core [2021-07-14 20:55:19,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:55:22,346 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:55:22,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 36 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 19 case distinctions, treesize of input 71 treesize of output 183 [2021-07-14 20:55:22,721 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 281 [2021-07-14 20:55:22,990 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 443 DAG size of output: 393 [2021-07-14 20:55:24,008 WARN L205 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 658 DAG size of output: 463 [2021-07-14 20:55:25,028 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 658 DAG size of output: 463 [2021-07-14 20:55:25,779 WARN L205 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 403 DAG size of output: 394 [2021-07-14 20:55:25,786 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 20:55:26,272 WARN L205 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 403 DAG size of output: 23 [2021-07-14 20:55:26,273 INFO L628 ElimStorePlain]: treesize reduction 21532, result has 0.1 percent of original size [2021-07-14 20:55:26,274 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 20:55:26,274 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:71, output treesize:32 [2021-07-14 20:55:26,511 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:55:26,511 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604276091] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:55:26,511 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:55:26,512 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 82 [2021-07-14 20:55:26,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691334940] [2021-07-14 20:55:26,512 INFO L462 AbstractCegarLoop]: Interpolant automaton has 83 states [2021-07-14 20:55:26,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:55:26,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2021-07-14 20:55:26,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=573, Invalid=6233, Unknown=0, NotChecked=0, Total=6806 [2021-07-14 20:55:26,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:55:26,514 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:55:26,514 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 83 states, 83 states have (on average 1.2530120481927711) internal successors, (104), 82 states have internal predecessors, (104), 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) [2021-07-14 20:55:26,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:55:26,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:55:26,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:26,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:55:26,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:55:26,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:55:26,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:55:26,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:55:26,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:55:26,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:55:26,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:55:26,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 20:55:26,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:26,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:55:26,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:55:27,211 WARN L205 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 183 [2021-07-14 20:55:27,582 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-07-14 20:55:27,985 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2021-07-14 20:55:28,318 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-07-14 20:55:28,648 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-07-14 20:55:28,958 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-07-14 20:55:29,326 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-07-14 20:55:29,677 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-07-14 20:55:30,059 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-07-14 20:55:30,432 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-07-14 20:55:30,779 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-07-14 20:55:31,180 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-07-14 20:55:31,632 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-07-14 20:55:32,046 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-07-14 20:55:32,491 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-07-14 20:55:32,883 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-07-14 20:55:33,325 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2021-07-14 20:55:33,718 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-07-14 20:55:34,149 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-07-14 20:55:34,537 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-07-14 20:55:35,053 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-07-14 20:55:35,852 WARN L205 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 210 [2021-07-14 20:55:36,209 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-07-14 20:55:37,747 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-07-14 20:55:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:55:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:55:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:55:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:55:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:55:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:55:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:55:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:55:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:55:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:55:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 20:55:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:55:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-07-14 20:55:37,965 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:55:37,965 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:55:37,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:55:37,965 INFO L82 PathProgramCache]: Analyzing trace with hash -514434998, now seen corresponding path program 15 times [2021-07-14 20:55:37,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:55:37,965 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690291548] [2021-07-14 20:55:37,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:55:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:55:38,158 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 90 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:55:38,158 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:55:38,158 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690291548] [2021-07-14 20:55:38,158 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690291548] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:55:38,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76697923] [2021-07-14 20:55:38,159 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 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 [2021-07-14 20:55:38,210 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2021-07-14 20:55:38,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:55:38,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 24 conjunts are in the unsatisfiable core [2021-07-14 20:55:38,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:55:38,329 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 121 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:55:38,330 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76697923] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:55:38,330 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:55:38,330 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 13] total 25 [2021-07-14 20:55:38,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520464151] [2021-07-14 20:55:38,330 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-14 20:55:38,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:55:38,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-14 20:55:38,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2021-07-14 20:55:38,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:55:38,331 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:55:38,331 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 25 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) [2021-07-14 20:55:38,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:55:38,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:55:38,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:38,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:55:38,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:55:38,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:55:38,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:55:38,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:55:38,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:55:38,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:55:38,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:55:38,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 20:55:38,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:38,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:55:38,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-07-14 20:55:38,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:55:38,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:55:38,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:55:38,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:38,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:55:38,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:55:38,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:55:38,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:55:38,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:55:38,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:55:38,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:55:38,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:55:38,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 20:55:38,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:38,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:55:38,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-07-14 20:55:38,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 20:55:38,865 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable115 [2021-07-14 20:55:38,865 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:55:38,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:55:38,867 INFO L82 PathProgramCache]: Analyzing trace with hash -106859700, now seen corresponding path program 16 times [2021-07-14 20:55:38,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:55:38,867 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839968010] [2021-07-14 20:55:38,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:55:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:55:38,967 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 81 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:55:38,967 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:55:38,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839968010] [2021-07-14 20:55:38,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839968010] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:55:38,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689422669] [2021-07-14 20:55:38,967 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 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 [2021-07-14 20:55:39,031 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 20:55:39,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:55:39,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 26 conjunts are in the unsatisfiable core [2021-07-14 20:55:39,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:55:39,137 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 122 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:55:39,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689422669] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:55:39,137 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:55:39,137 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 17 [2021-07-14 20:55:39,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730562477] [2021-07-14 20:55:39,138 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-14 20:55:39,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:55:39,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-14 20:55:39,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=179, Unknown=0, NotChecked=0, Total=306 [2021-07-14 20:55:39,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:55:39,140 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:55:39,141 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 17 states have internal predecessors, (80), 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) [2021-07-14 20:55:39,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:55:39,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:55:39,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:39,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:55:39,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:55:39,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:55:39,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:55:39,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:55:39,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:55:39,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:55:39,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:55:39,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 20:55:39,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:39,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:55:39,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-07-14 20:55:39,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 20:55:39,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:55:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:55:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:55:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:55:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:55:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:55:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:55:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:55:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:55:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:55:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:55:39,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 20:55:39,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:55:39,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:55:39,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-07-14 20:55:39,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 20:55:39,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 20:55:39,497 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable116 [2021-07-14 20:55:39,498 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:55:39,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:55:39,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1245476723, now seen corresponding path program 17 times [2021-07-14 20:55:39,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:55:39,498 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119631698] [2021-07-14 20:55:39,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:55:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:55:41,632 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 0 proven. 266 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:55:41,633 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:55:41,633 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119631698] [2021-07-14 20:55:41,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119631698] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:55:41,633 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462486506] [2021-07-14 20:55:41,633 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:55:41,686 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2021-07-14 20:55:41,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:55:41,689 WARN L261 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 151 conjunts are in the unsatisfiable core [2021-07-14 20:55:41,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:55:45,547 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:55:45,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 55 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 23 case distinctions, treesize of input 83 treesize of output 219 [2021-07-14 20:55:45,868 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 342 DAG size of output: 312 [2021-07-14 20:55:46,174 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 450 DAG size of output: 364 [2021-07-14 20:55:46,503 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 375 [2021-07-14 20:55:47,424 WARN L205 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 587 DAG size of output: 456 [2021-07-14 20:55:48,433 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 598 DAG size of output: 467 [2021-07-14 20:55:51,294 WARN L205 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 745 DAG size of output: 659 [2021-07-14 20:56:03,002 WARN L205 SmtUtils]: Spent 11.68 s on a formula simplification. DAG size of input: 1182 DAG size of output: 868 [2021-07-14 20:56:14,681 WARN L205 SmtUtils]: Spent 11.66 s on a formula simplification. DAG size of input: 1182 DAG size of output: 868 [2021-07-14 20:56:23,952 WARN L205 SmtUtils]: Spent 9.27 s on a formula simplification. DAG size of input: 697 DAG size of output: 606 [2021-07-14 20:56:23,965 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 20:56:25,164 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 697 DAG size of output: 23 [2021-07-14 20:56:25,164 INFO L628 ElimStorePlain]: treesize reduction 174240, result has 0.0 percent of original size [2021-07-14 20:56:25,165 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 20:56:25,165 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:83, output treesize:32 [2021-07-14 20:56:25,450 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 0 proven. 266 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:56:25,451 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462486506] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:56:25,451 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:56:25,451 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 98 [2021-07-14 20:56:25,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507398833] [2021-07-14 20:56:25,451 INFO L462 AbstractCegarLoop]: Interpolant automaton has 99 states [2021-07-14 20:56:25,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:56:25,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2021-07-14 20:56:25,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=809, Invalid=8893, Unknown=0, NotChecked=0, Total=9702 [2021-07-14 20:56:25,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:56:25,453 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:56:25,454 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 99 states, 99 states have (on average 1.2121212121212122) internal successors, (120), 98 states have internal predecessors, (120), 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) [2021-07-14 20:56:25,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:56:25,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:56:25,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:56:25,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:56:25,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:56:25,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:56:25,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:56:25,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:56:25,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:56:25,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:56:25,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:56:25,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 20:56:25,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:56:25,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:56:25,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-07-14 20:56:25,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 20:56:25,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 20:56:25,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:56:26,060 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 231 [2021-07-14 20:56:26,574 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-07-14 20:56:27,096 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-07-14 20:56:27,572 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-07-14 20:56:28,045 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-07-14 20:56:28,506 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2021-07-14 20:56:29,020 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-07-14 20:56:29,523 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2021-07-14 20:56:30,061 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2021-07-14 20:56:30,600 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-07-14 20:56:31,101 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-07-14 20:56:31,662 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-07-14 20:56:32,278 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-07-14 20:56:32,834 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-07-14 20:56:33,462 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-07-14 20:56:34,033 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-07-14 20:56:34,666 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-07-14 20:56:35,238 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-07-14 20:56:35,853 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-07-14 20:56:36,418 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-07-14 20:56:37,045 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-07-14 20:56:37,600 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-07-14 20:56:38,221 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2021-07-14 20:56:38,784 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-07-14 20:56:39,426 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2021-07-14 20:56:40,432 WARN L205 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 256 [2021-07-14 20:56:40,960 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-07-14 20:56:42,913 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 231 [2021-07-14 20:56:42,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:56:42,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:56:42,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:56:42,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:56:42,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:56:42,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:56:42,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:56:42,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:56:42,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:56:42,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:56:42,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:56:42,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 20:56:42,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:56:42,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:56:42,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-07-14 20:56:42,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 20:56:42,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 20:56:42,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-07-14 20:56:43,116 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable117 [2021-07-14 20:56:43,116 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:56:43,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:56:43,117 INFO L82 PathProgramCache]: Analyzing trace with hash -239775346, now seen corresponding path program 18 times [2021-07-14 20:56:43,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:56:43,117 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753794081] [2021-07-14 20:56:43,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:56:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:56:43,356 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 132 proven. 159 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:56:43,356 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:56:43,356 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753794081] [2021-07-14 20:56:43,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753794081] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:56:43,356 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455045032] [2021-07-14 20:56:43,356 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:56:43,410 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-07-14 20:56:43,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:56:43,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 28 conjunts are in the unsatisfiable core [2021-07-14 20:56:43,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:56:43,527 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 169 proven. 122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:56:43,527 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455045032] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:56:43,527 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:56:43,527 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 15] total 29 [2021-07-14 20:56:43,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606864672] [2021-07-14 20:56:43,528 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-14 20:56:43,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:56:43,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-14 20:56:43,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2021-07-14 20:56:43,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:56:43,528 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:56:43,529 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 3.533333333333333) internal successors, (106), 29 states have internal predecessors, (106), 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) [2021-07-14 20:56:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:56:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:56:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:56:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:56:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:56:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:56:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:56:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:56:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:56:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:56:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:56:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 20:56:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:56:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:56:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-07-14 20:56:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 20:56:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 20:56:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-07-14 20:56:43,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:56:43,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:56:43,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:56:43,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:56:43,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:56:43,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:56:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:56:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:56:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:56:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:56:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:56:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:56:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 20:56:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:56:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:56:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-07-14 20:56:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 20:56:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 20:56:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-07-14 20:56:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:56:44,146 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable172 [2021-07-14 20:56:44,147 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:56:44,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:56:44,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1671047824, now seen corresponding path program 19 times [2021-07-14 20:56:44,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:56:44,147 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707978633] [2021-07-14 20:56:44,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:56:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:56:44,271 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 121 proven. 218 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:56:44,272 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:56:44,272 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707978633] [2021-07-14 20:56:44,272 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707978633] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:56:44,272 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500483667] [2021-07-14 20:56:44,272 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:56:44,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:56:44,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 30 conjunts are in the unsatisfiable core [2021-07-14 20:56:44,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:56:44,431 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 170 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:56:44,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500483667] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:56:44,432 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:56:44,432 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 19 [2021-07-14 20:56:44,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964132076] [2021-07-14 20:56:44,433 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-14 20:56:44,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:56:44,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-14 20:56:44,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=220, Unknown=0, NotChecked=0, Total=380 [2021-07-14 20:56:44,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:56:44,433 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:56:44,433 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 4.4) internal successors, (88), 19 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) [2021-07-14 20:56:44,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:56:44,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:56:44,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:56:44,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:56:44,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:56:44,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:56:44,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:56:44,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:56:44,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:56:44,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:56:44,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:56:44,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 20:56:44,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:56:44,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:56:44,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-07-14 20:56:44,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 20:56:44,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 20:56:44,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-07-14 20:56:44,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:56:44,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:56:44,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:56:44,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:56:44,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:56:44,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 20:56:44,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:56:44,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 20:56:44,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:56:44,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:56:44,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 20:56:44,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:56:44,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:56:44,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 20:56:44,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:56:44,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:56:44,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-07-14 20:56:44,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 20:56:44,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 20:56:44,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-07-14 20:56:44,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:56:44,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:56:44,813 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173,22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:56:44,814 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:56:44,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:56:44,814 INFO L82 PathProgramCache]: Analyzing trace with hash 540503761, now seen corresponding path program 20 times [2021-07-14 20:56:44,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:56:44,814 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737874606] [2021-07-14 20:56:44,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:56:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:56:47,758 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:56:47,758 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:56:47,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737874606] [2021-07-14 20:56:47,758 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737874606] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:56:47,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325386484] [2021-07-14 20:56:47,758 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 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:56:47,814 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 20:56:47,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:56:47,816 WARN L261 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 175 conjunts are in the unsatisfiable core [2021-07-14 20:56:47,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:56:53,343 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-07-14 20:56:53,343 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:56:53,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 78 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 27 case distinctions, treesize of input 95 treesize of output 255 [2021-07-14 20:56:53,694 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 371 DAG size of output: 331 [2021-07-14 20:56:54,011 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 492 DAG size of output: 409 [2021-07-14 20:56:54,352 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 502 DAG size of output: 420 [2021-07-14 20:56:55,349 WARN L205 SmtUtils]: Spent 983.00 ms on a formula simplification. DAG size of input: 620 DAG size of output: 538 [2021-07-14 20:56:56,453 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 631 DAG size of output: 549 [2021-07-14 20:56:59,729 WARN L205 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 779 DAG size of output: 609 [2021-07-14 20:57:03,204 WARN L205 SmtUtils]: Spent 3.47 s on a formula simplification. DAG size of input: 789 DAG size of output: 620 [2021-07-14 20:57:13,136 WARN L205 SmtUtils]: Spent 9.91 s on a formula simplification. DAG size of input: 962 DAG size of output: 795 [2021-07-14 20:57:24,051 WARN L205 SmtUtils]: Spent 10.91 s on a formula simplification. DAG size of input: 972 DAG size of output: 806 [2021-07-14 20:57:55,219 WARN L205 SmtUtils]: Spent 31.14 s on a formula simplification. DAG size of input: 1155 DAG size of output: 1010 [2021-07-14 21:00:02,407 WARN L205 SmtUtils]: Spent 2.12 m on a formula simplification. DAG size of input: 1935 DAG size of output: 1482 [2021-07-14 21:02:12,217 WARN L205 SmtUtils]: Spent 2.16 m on a formula simplification. DAG size of input: 1935 DAG size of output: 1482 [2021-07-14 21:03:53,192 WARN L205 SmtUtils]: Spent 1.68 m on a formula simplification. DAG size of input: 933 DAG size of output: 841 [2021-07-14 21:03:53,217 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:03:55,488 WARN L205 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 933 DAG size of output: 23 [2021-07-14 21:03:55,488 INFO L628 ElimStorePlain]: treesize reduction 1439577, result has 0.0 percent of original size [2021-07-14 21:03:55,489 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 21:03:55,489 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:95, output treesize:32 [2021-07-14 21:03:55,822 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:03:55,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325386484] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:03:55,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:03:55,822 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 114 [2021-07-14 21:03:55,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619897040] [2021-07-14 21:03:55,822 INFO L462 AbstractCegarLoop]: Interpolant automaton has 115 states [2021-07-14 21:03:55,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:03:55,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2021-07-14 21:03:55,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1029, Invalid=12081, Unknown=0, NotChecked=0, Total=13110 [2021-07-14 21:03:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:03:55,825 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:03:55,825 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 115 states, 115 states have (on average 1.182608695652174) internal successors, (136), 114 states have internal predecessors, (136), 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) [2021-07-14 21:03:55,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:03:55,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:03:55,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:03:55,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 21:03:55,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:03:55,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 21:03:55,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:03:55,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:03:55,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 21:03:55,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 21:03:55,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 21:03:55,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:03:55,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:03:55,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:03:55,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-07-14 21:03:55,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:03:55,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:03:55,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-07-14 21:03:55,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:03:55,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:03:55,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:03:56,613 WARN L205 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2021-07-14 21:03:57,302 WARN L205 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 237 [2021-07-14 21:03:57,975 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 233 [2021-07-14 21:03:58,613 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2021-07-14 21:03:59,247 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2021-07-14 21:03:59,851 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2021-07-14 21:04:00,540 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2021-07-14 21:04:01,221 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 236 [2021-07-14 21:04:01,937 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 236 [2021-07-14 21:04:02,654 WARN L205 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 237 [2021-07-14 21:04:03,330 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 237 [2021-07-14 21:04:04,078 WARN L205 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2021-07-14 21:04:04,912 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 237 [2021-07-14 21:04:05,655 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2021-07-14 21:04:06,480 WARN L205 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 237 [2021-07-14 21:04:07,228 WARN L205 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2021-07-14 21:04:08,045 WARN L205 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 237 [2021-07-14 21:04:08,801 WARN L205 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2021-07-14 21:04:09,618 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 237 [2021-07-14 21:04:10,358 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2021-07-14 21:04:11,162 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 233 [2021-07-14 21:04:11,906 WARN L205 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2021-07-14 21:04:12,746 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 233 [2021-07-14 21:04:13,481 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2021-07-14 21:04:14,317 WARN L205 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 231 [2021-07-14 21:04:15,068 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-07-14 21:04:15,861 WARN L205 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2021-07-14 21:04:16,603 WARN L205 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-07-14 21:04:17,532 WARN L205 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2021-07-14 21:04:19,247 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 304 DAG size of output: 300 [2021-07-14 21:04:19,925 WARN L205 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-07-14 21:04:20,466 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-07-14 21:04:22,565 WARN L205 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2021-07-14 21:04:22,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:04:22,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:04:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:04:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 21:04:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:04:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 21:04:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:04:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:04:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 21:04:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 21:04:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 21:04:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:04:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:04:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:04:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-07-14 21:04:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:04:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:04:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-07-14 21:04:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:04:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:04:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-07-14 21:04:22,784 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:04:22,785 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:04:22,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:04:22,785 INFO L82 PathProgramCache]: Analyzing trace with hash 714385106, now seen corresponding path program 21 times [2021-07-14 21:04:22,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:04:22,785 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145643286] [2021-07-14 21:04:22,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:04:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:04:23,132 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 182 proven. 213 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:04:23,133 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:04:23,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145643286] [2021-07-14 21:04:23,133 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145643286] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:04:23,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688859138] [2021-07-14 21:04:23,133 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 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:04:23,196 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-07-14 21:04:23,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:04:23,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 32 conjunts are in the unsatisfiable core [2021-07-14 21:04:23,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:04:23,330 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 225 proven. 170 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:04:23,330 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688859138] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:04:23,330 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:04:23,330 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 17] total 33 [2021-07-14 21:04:23,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645878392] [2021-07-14 21:04:23,330 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-07-14 21:04:23,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:04:23,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-07-14 21:04:23,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=290, Invalid=832, Unknown=0, NotChecked=0, Total=1122 [2021-07-14 21:04:23,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:04:23,331 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:04:23,331 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 3.4705882352941178) internal successors, (118), 33 states have internal predecessors, (118), 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) [2021-07-14 21:04:23,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:04:23,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:04:23,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:04:23,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 21:04:23,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:04:23,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 21:04:23,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:04:23,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:04:23,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 21:04:23,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 21:04:23,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 21:04:23,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:04:23,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:04:23,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:04:23,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-07-14 21:04:23,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:04:23,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:04:23,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-07-14 21:04:23,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:04:23,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:04:23,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-07-14 21:04:23,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:04:23,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:04:23,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:04:23,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:04:23,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 21:04:23,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:04:23,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 21:04:23,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:04:23,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:04:23,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 21:04:23,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 21:04:23,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 21:04:23,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:04:23,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:04:23,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:04:23,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-07-14 21:04:23,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:04:23,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:04:23,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-07-14 21:04:23,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:04:23,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:04:23,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-07-14 21:04:23,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:04:24,005 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable304 [2021-07-14 21:04:24,005 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:04:24,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:04:24,006 INFO L82 PathProgramCache]: Analyzing trace with hash -964346412, now seen corresponding path program 22 times [2021-07-14 21:04:24,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:04:24,006 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049997106] [2021-07-14 21:04:24,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:04:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:04:24,155 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 169 proven. 282 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:04:24,155 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:04:24,155 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049997106] [2021-07-14 21:04:24,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049997106] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:04:24,155 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932522123] [2021-07-14 21:04:24,155 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 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:04:24,203 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 21:04:24,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:04:24,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 34 conjunts are in the unsatisfiable core [2021-07-14 21:04:24,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:04:24,351 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 226 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:04:24,351 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932522123] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:04:24,351 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:04:24,351 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 21 [2021-07-14 21:04:24,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943730811] [2021-07-14 21:04:24,351 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-14 21:04:24,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:04:24,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-14 21:04:24,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=265, Unknown=0, NotChecked=0, Total=462 [2021-07-14 21:04:24,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:04:24,352 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:04:24,352 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 4.363636363636363) internal successors, (96), 21 states have internal predecessors, (96), 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) [2021-07-14 21:04:24,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:04:24,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:04:24,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:04:24,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 21:04:24,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:04:24,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 21:04:24,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:04:24,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:04:24,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 21:04:24,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 21:04:24,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 21:04:24,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:04:24,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:04:24,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:04:24,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-07-14 21:04:24,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:04:24,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:04:24,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-07-14 21:04:24,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:04:24,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:04:24,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-07-14 21:04:24,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:04:24,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:04:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:04:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 21:04:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:04:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 21:04:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:04:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 21:04:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:04:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:04:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 21:04:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 21:04:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 21:04:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-14 21:04:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:04:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:04:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-07-14 21:04:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:04:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:04:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-07-14 21:04:24,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:04:24,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:04:24,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-07-14 21:04:24,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:04:24,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:04:24,765 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:04:24,766 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:04:24,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:04:24,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1761521941, now seen corresponding path program 23 times [2021-07-14 21:04:24,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:04:24,766 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802524822] [2021-07-14 21:04:24,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:04:24,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:04:28,733 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 0 proven. 482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:04:28,734 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:04:28,734 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802524822] [2021-07-14 21:04:28,734 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802524822] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:04:28,734 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356346706] [2021-07-14 21:04:28,734 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 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:04:28,801 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2021-07-14 21:04:28,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:04:28,803 WARN L261 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 199 conjunts are in the unsatisfiable core [2021-07-14 21:04:28,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:04:36,316 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-07-14 21:04:36,317 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:04:36,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 105 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 31 case distinctions, treesize of input 107 treesize of output 291 [2021-07-14 21:04:36,607 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 249 [2021-07-14 21:04:36,740 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 261 [2021-07-14 21:04:37,113 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 406 DAG size of output: 314 [2021-07-14 21:04:37,522 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 417 DAG size of output: 326 [2021-07-14 21:04:38,590 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 523 DAG size of output: 435 [2021-07-14 21:04:39,773 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 533 DAG size of output: 446 [2021-07-14 21:04:42,916 WARN L205 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 661 DAG size of output: 542 [2021-07-14 21:04:46,304 WARN L205 SmtUtils]: Spent 3.38 s on a formula simplification. DAG size of input: 671 DAG size of output: 553 [2021-07-14 21:04:54,928 WARN L205 SmtUtils]: Spent 8.60 s on a formula simplification. DAG size of input: 812 DAG size of output: 624 [2021-07-14 21:05:04,405 WARN L205 SmtUtils]: Spent 9.47 s on a formula simplification. DAG size of input: 824 DAG size of output: 636 [2021-07-14 21:05:30,992 WARN L205 SmtUtils]: Spent 26.56 s on a formula simplification. DAG size of input: 997 DAG size of output: 837 [2021-07-14 21:05:59,859 WARN L205 SmtUtils]: Spent 28.86 s on a formula simplification. DAG size of input: 1007 DAG size of output: 848 [2021-07-14 21:07:22,546 WARN L205 SmtUtils]: Spent 1.38 m on a formula simplification. DAG size of input: 1265 DAG size of output: 967 [2021-07-14 21:08:52,590 WARN L205 SmtUtils]: Spent 1.50 m on a formula simplification. DAG size of input: 1276 DAG size of output: 979 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown