/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 11:34:25,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 11:34:25,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 11:34:25,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-06 11:34:25,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-06 11:34:25,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-06 11:34:25,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-06 11:34:25,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-06 11:34:25,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-06 11:34:25,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-06 11:34:25,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-06 11:34:25,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-06 11:34:25,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-06 11:34:25,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-06 11:34:25,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-06 11:34:25,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-06 11:34:25,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-06 11:34:25,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-06 11:34:25,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-06 11:34:25,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-06 11:34:25,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-06 11:34:25,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-06 11:34:25,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-06 11:34:25,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-06 11:34:25,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-06 11:34:25,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-06 11:34:25,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-06 11:34:25,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-06 11:34:25,427 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-DelaySleep-NoLbe.epf [2021-06-06 11:34:25,456 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 11:34:25,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 11:34:25,457 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 11:34:25,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 11:34:25,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 11:34:25,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 11:34:25,459 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 11:34:25,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 11:34:25,459 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 11:34:25,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 11:34:25,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 11:34:25,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 11:34:25,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 11:34:25,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 11:34:25,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 11:34:25,460 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 11:34:25,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 11:34:25,460 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 11:34:25,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 11:34:25,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 11:34:25,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 11:34:25,461 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 11:34:25,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 11:34:25,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 11:34:25,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 11:34:25,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 11:34:25,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 11:34:25,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 11:34:25,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 11:34:25,462 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 11:34:25,462 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 11:34:25,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 11:34:25,462 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 11:34:25,462 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 11:34:25,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 11:34:25,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 11:34:25,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 11:34:25,711 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 11:34:25,713 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 11:34:25,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl [2021-06-06 11:34:25,714 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl' [2021-06-06 11:34:25,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 11:34:25,741 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 11:34:25,742 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 11:34:25,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 11:34:25,742 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 11:34:25,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:34:25" (1/1) ... [2021-06-06 11:34:25,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:34:25" (1/1) ... [2021-06-06 11:34:25,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 11:34:25,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 11:34:25,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 11:34:25,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 11:34:25,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:34:25" (1/1) ... [2021-06-06 11:34:25,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:34:25" (1/1) ... [2021-06-06 11:34:25,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:34:25" (1/1) ... [2021-06-06 11:34:25,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:34:25" (1/1) ... [2021-06-06 11:34:25,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:34:25" (1/1) ... [2021-06-06 11:34:25,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:34:25" (1/1) ... [2021-06-06 11:34:25,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:34:25" (1/1) ... [2021-06-06 11:34:25,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 11:34:25,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 11:34:25,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 11:34:25,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 11:34:25,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:34:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 11:34:25,842 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 11:34:25,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 11:34:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 11:34:25,842 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 11:34:25,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 11:34:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 11:34:25,842 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 11:34:25,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 11:34:25,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 11:34:25,843 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-06 11:34:25,843 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-06 11:34:25,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-06 11:34:25,844 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 11:34:26,005 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 11:34:26,006 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 11:34:26,007 INFO L202 PluginConnector]: Adding new model dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 11:34:26 BoogieIcfgContainer [2021-06-06 11:34:26,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 11:34:26,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 11:34:26,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 11:34:26,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 11:34:26,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:34:25" (1/2) ... [2021-06-06 11:34:26,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@324898e and model type dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 11:34:26, skipping insertion in model container [2021-06-06 11:34:26,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 11:34:26" (2/2) ... [2021-06-06 11:34:26,011 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product.wvr.bpl [2021-06-06 11:34:26,015 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 11:34:26,015 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 11:34:26,015 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 11:34:26,015 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 11:34:26,070 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-06 11:34:26,092 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-06-06 11:34:26,144 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 11:34:26,144 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 11:34:26,144 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 11:34:26,144 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-06 11:34:26,144 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 11:34:26,145 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 11:34:26,145 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 11:34:26,145 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 11:34:26,229 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:34:26,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:34:26,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1421528455, now seen corresponding path program 1 times [2021-06-06 11:34:26,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:34:26,238 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965606501] [2021-06-06 11:34:26,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:34:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:34:26,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:34:26,350 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:34:26,350 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965606501] [2021-06-06 11:34:26,351 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965606501] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 11:34:26,351 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 11:34:26,351 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-06 11:34:26,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665929375] [2021-06-06 11:34:26,354 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 11:34:26,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:34:26,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 11:34:26,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 11:34:26,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:34:26,363 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:34:26,364 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 11:34:26,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:34:26,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:34:26,388 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 11:34:26,388 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:34:26,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:34:26,388 INFO L82 PathProgramCache]: Analyzing trace with hash 690038743, now seen corresponding path program 1 times [2021-06-06 11:34:26,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:34:26,389 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685567361] [2021-06-06 11:34:26,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:34:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:34:26,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 11:34:26,429 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:34:26,429 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685567361] [2021-06-06 11:34:26,429 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685567361] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 11:34:26,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 11:34:26,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 11:34:26,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19303610] [2021-06-06 11:34:26,432 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 11:34:26,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:34:26,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 11:34:26,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-06 11:34:26,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:34:26,435 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:34:26,435 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 11:34:26,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:34:26,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:34:26,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:34:26,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:34:26,489 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-06 11:34:26,489 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:34:26,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:34:26,490 INFO L82 PathProgramCache]: Analyzing trace with hash 2139358133, now seen corresponding path program 1 times [2021-06-06 11:34:26,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:34:26,491 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066977892] [2021-06-06 11:34:26,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:34:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:34:26,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:34:26,684 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:34:26,684 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066977892] [2021-06-06 11:34:26,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066977892] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:34:26,685 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392778979] [2021-06-06 11:34:26,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:34:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:34:26,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-06 11:34:26,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:34:26,897 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:34:26,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-06-06 11:34:26,933 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-06 11:34:26,938 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:34:26,940 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:34:26,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-06-06 11:34:26,943 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-06 11:34:26,948 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:34:26,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-06-06 11:34:26,952 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 11:34:26,956 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:34:26,958 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-06 11:34:26,958 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:29, output treesize:3 [2021-06-06 11:34:26,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:34:26,995 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392778979] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:34:26,995 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:34:26,996 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-06 11:34:26,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285230571] [2021-06-06 11:34:26,997 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-06 11:34:26,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:34:26,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-06 11:34:27,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-06-06 11:34:27,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:34:27,001 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:34:27,001 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 11:34:27,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:34:27,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:34:27,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:34:27,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:34:27,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:34:27,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:34:27,330 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:34:27,331 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:34:27,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:34:27,331 INFO L82 PathProgramCache]: Analyzing trace with hash 428481043, now seen corresponding path program 2 times [2021-06-06 11:34:27,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:34:27,331 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148001006] [2021-06-06 11:34:27,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:34:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:34:27,388 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:34:27,388 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:34:27,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148001006] [2021-06-06 11:34:27,388 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148001006] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:34:27,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304537649] [2021-06-06 11:34:27,388 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:34:27,422 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 11:34:27,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 11:34:27,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 11:34:27,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:34:27,496 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:34:27,496 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304537649] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:34:27,496 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:34:27,497 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-06-06 11:34:27,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306954407] [2021-06-06 11:34:27,497 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-06 11:34:27,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:34:27,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-06 11:34:27,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-06 11:34:27,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:34:27,498 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:34:27,498 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 11:34:27,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:34:27,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:34:27,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:34:27,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:34:27,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:34:27,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:34:27,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:34:27,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:34:27,848 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:34:27,850 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:34:27,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:34:27,851 INFO L82 PathProgramCache]: Analyzing trace with hash -59020201, now seen corresponding path program 1 times [2021-06-06 11:34:27,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:34:27,851 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948006600] [2021-06-06 11:34:27,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:34:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:34:27,899 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 11:34:27,899 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:34:27,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948006600] [2021-06-06 11:34:27,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948006600] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:34:27,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080081689] [2021-06-06 11:34:27,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:34:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:34:27,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 11:34:27,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:34:28,010 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 11:34:28,010 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080081689] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:34:28,010 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:34:28,010 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-06 11:34:28,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951297751] [2021-06-06 11:34:28,011 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-06 11:34:28,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:34:28,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-06 11:34:28,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-06-06 11:34:28,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:34:28,012 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:34:28,012 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 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) [2021-06-06 11:34:28,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:34:28,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:34:28,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:34:28,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:34:28,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:34:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:34:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:34:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:34:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:34:28,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:34:28,297 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:34:28,297 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:34:28,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:34:28,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1348287435, now seen corresponding path program 2 times [2021-06-06 11:34:28,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:34:28,298 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652642393] [2021-06-06 11:34:28,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:34:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:34:28,590 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:34:28,590 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:34:28,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652642393] [2021-06-06 11:34:28,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652642393] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:34:28,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80437756] [2021-06-06 11:34:28,590 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:34:28,619 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 11:34:28,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 11:34:28,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 37 conjunts are in the unsatisfiable core [2021-06-06 11:34:28,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:34:29,051 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:34:29,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 73 [2021-06-06 11:34:29,293 INFO L550 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-06-06 11:34:29,312 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:34:29,331 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:34:29,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 61 [2021-06-06 11:34:29,493 INFO L550 ElimStorePlain]: Start of recursive call 3: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-06-06 11:34:29,522 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:34:29,556 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:34:29,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 85 [2021-06-06 11:34:29,709 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 3 xjuncts. [2021-06-06 11:34:30,051 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 103 [2021-06-06 11:34:30,051 INFO L628 ElimStorePlain]: treesize reduction 322, result has 68.1 percent of original size [2021-06-06 11:34:30,527 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-06 11:34:30,528 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:77, output treesize:228 [2021-06-06 11:34:30,624 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:34:30,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80437756] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:34:30,624 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:34:30,624 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 25 [2021-06-06 11:34:30,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053040011] [2021-06-06 11:34:30,624 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-06 11:34:30,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:34:30,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-06 11:34:30,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2021-06-06 11:34:30,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:34:30,626 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:34:30,626 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.08) internal successors, (52), 25 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 11:34:30,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:34:30,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:34:30,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:34:30,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:34:30,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:34:30,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:34:31,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:34:31,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:34:31,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:34:31,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:34:31,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:34:31,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 11:34:31,663 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-06 11:34:31,664 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:34:31,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:34:31,664 INFO L82 PathProgramCache]: Analyzing trace with hash 911449235, now seen corresponding path program 3 times [2021-06-06 11:34:31,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:34:31,664 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599612720] [2021-06-06 11:34:31,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:34:31,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:34:31,740 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:34:31,740 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:34:31,743 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599612720] [2021-06-06 11:34:31,744 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599612720] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:34:31,744 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895095915] [2021-06-06 11:34:31,744 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:34:31,784 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-06 11:34:31,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 11:34:31,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-06 11:34:31,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:34:31,933 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:34:31,933 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895095915] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:34:31,933 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:34:31,933 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-06-06 11:34:31,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530866305] [2021-06-06 11:34:31,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-06 11:34:31,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:34:31,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-06 11:34:31,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-06-06 11:34:31,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:34:31,935 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:34:31,935 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 11:34:31,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:34:31,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:34:31,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:34:31,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:34:31,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:34:31,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 11:34:31,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:34:32,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:34:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:34:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:34:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:34:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:34:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 11:34:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 11:34:32,528 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:34:32,529 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:34:32,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:34:32,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1145065769, now seen corresponding path program 4 times [2021-06-06 11:34:32,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:34:32,529 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124949728] [2021-06-06 11:34:32,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:34:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:34:32,591 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 11:34:32,591 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:34:32,591 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124949728] [2021-06-06 11:34:32,591 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124949728] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:34:32,591 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357613099] [2021-06-06 11:34:32,591 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:34:32,620 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 11:34:32,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 11:34:32,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-06 11:34:32,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:34:32,719 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 11:34:32,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357613099] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:34:32,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:34:32,719 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-06-06 11:34:32,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488310805] [2021-06-06 11:34:32,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-06 11:34:32,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:34:32,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-06 11:34:32,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-06-06 11:34:32,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:34:32,720 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:34:32,720 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 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) [2021-06-06 11:34:32,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:34:32,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:34:32,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:34:32,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:34:32,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:34:32,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 11:34:32,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 11:34:32,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:34:32,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:34:32,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:34:32,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:34:32,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:34:32,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:34:32,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 11:34:32,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 11:34:32,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 11:34:33,052 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable166 [2021-06-06 11:34:33,053 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:34:33,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:34:33,053 INFO L82 PathProgramCache]: Analyzing trace with hash 754469045, now seen corresponding path program 5 times [2021-06-06 11:34:33,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:34:33,053 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921595880] [2021-06-06 11:34:33,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:34:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:34:33,473 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:34:33,473 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:34:33,473 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921595880] [2021-06-06 11:34:33,473 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921595880] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:34:33,473 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529695589] [2021-06-06 11:34:33,473 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:34:33,505 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-06 11:34:33,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 11:34:33,506 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-06-06 11:34:33,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:34:42,592 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-06-06 11:34:43,067 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-06-06 11:34:43,811 WARN L205 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-06-06 11:34:43,843 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:34:43,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:34:43,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:34:43,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:34:43,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:34:43,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 77 [2021-06-06 11:34:43,849 INFO L550 ElimStorePlain]: Start of recursive call 2: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-06-06 11:34:43,858 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:34:43,860 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:34:43,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:34:43,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:34:43,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:34:43,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:34:43,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 57 [2021-06-06 11:34:43,865 INFO L550 ElimStorePlain]: Start of recursive call 3: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-06-06 11:34:43,873 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:34:43,918 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:34:43,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 137 [2021-06-06 11:34:44,580 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 197 [2021-06-06 11:34:44,954 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 240 [2021-06-06 11:34:45,951 WARN L205 SmtUtils]: Spent 963.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 287 [2021-06-06 11:34:46,927 WARN L205 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 287 [2021-06-06 11:34:47,899 WARN L205 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 295 [2021-06-06 11:34:48,253 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 242 [2021-06-06 11:34:48,724 WARN L205 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 231 [2021-06-06 11:34:49,036 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 184 [2021-06-06 11:34:49,166 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 198 [2021-06-06 11:34:49,298 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 198 [2021-06-06 11:34:50,002 WARN L205 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 242 [2021-06-06 11:34:50,373 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 240 [2021-06-06 11:34:50,746 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 240 [2021-06-06 11:34:51,379 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2021-06-06 11:34:52,434 WARN L205 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 287 [2021-06-06 11:34:53,459 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 313 DAG size of output: 293 [2021-06-06 11:34:54,456 WARN L205 SmtUtils]: Spent 995.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 285 [2021-06-06 11:34:55,586 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 287 DAG size of output: 289 [2021-06-06 11:34:56,637 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 286 DAG size of output: 288 [2021-06-06 11:34:57,562 WARN L205 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 287 [2021-06-06 11:34:58,137 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2021-06-06 11:34:58,366 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 147 [2021-06-06 11:34:58,757 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 242 [2021-06-06 11:34:59,220 WARN L205 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 231 [2021-06-06 11:34:59,489 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 184 [2021-06-06 11:34:59,623 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 198 [2021-06-06 11:34:59,751 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 198 [2021-06-06 11:35:00,393 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 242 [2021-06-06 11:35:00,764 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 240 [2021-06-06 11:35:01,132 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 240 [2021-06-06 11:35:02,137 WARN L205 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 285 DAG size of output: 287 [2021-06-06 11:35:03,128 WARN L205 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 285 [2021-06-06 11:35:04,120 WARN L205 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 285 [2021-06-06 11:35:05,253 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 287 DAG size of output: 289 [2021-06-06 11:35:05,259 INFO L550 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-06-06 11:35:07,399 WARN L205 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 290 DAG size of output: 248 [2021-06-06 11:35:07,400 INFO L628 ElimStorePlain]: treesize reduction 15036, result has 42.6 percent of original size [2021-06-06 11:35:07,803 WARN L205 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 249 [2021-06-06 11:35:08,089 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 236 [2021-06-06 11:35:09,192 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-06 11:35:09,193 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:106, output treesize:3 [2021-06-06 11:35:09,212 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:35:09,212 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529695589] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:35:09,212 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:35:09,212 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2021-06-06 11:35:09,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844309287] [2021-06-06 11:35:09,212 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-06 11:35:09,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:35:09,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-06 11:35:09,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=740, Unknown=5, NotChecked=0, Total=870 [2021-06-06 11:35:09,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:35:09,213 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:35:09,213 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.2333333333333334) internal successors, (67), 30 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 11:35:09,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:35:09,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:35:09,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:35:09,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:35:09,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:35:09,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 11:35:09,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 11:35:09,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 11:35:09,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:36:09,351 WARN L205 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-06-06 11:36:09,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:36:09,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:36:09,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:36:09,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:36:09,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:36:09,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 11:36:09,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 11:36:09,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 11:36:09,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 11:36:09,877 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable167 [2021-06-06 11:36:09,878 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:36:09,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:36:09,878 INFO L82 PathProgramCache]: Analyzing trace with hash -127394481, now seen corresponding path program 6 times [2021-06-06 11:36:09,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:36:09,878 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002377807] [2021-06-06 11:36:09,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:36:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:36:10,003 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:36:10,004 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:36:10,004 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002377807] [2021-06-06 11:36:10,004 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002377807] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:36:10,004 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280173417] [2021-06-06 11:36:10,004 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:36:10,042 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-06 11:36:10,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 11:36:10,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-06 11:36:10,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:36:10,261 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:36:10,261 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280173417] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:36:10,261 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:36:10,261 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 29 [2021-06-06 11:36:10,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860568722] [2021-06-06 11:36:10,262 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-06 11:36:10,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:36:10,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-06 11:36:10,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2021-06-06 11:36:10,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:36:10,263 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:36:10,263 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.3793103448275863) internal successors, (69), 29 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 11:36:10,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:36:10,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:36:10,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:36:10,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:36:10,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:36:10,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 11:36:10,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 11:36:10,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 11:36:10,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 11:36:10,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:36:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:36:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:36:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:36:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:36:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:36:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 11:36:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 11:36:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 11:36:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 11:36:10,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 11:36:10,655 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable647,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:36:10,655 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:36:10,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:36:10,656 INFO L82 PathProgramCache]: Analyzing trace with hash 726661421, now seen corresponding path program 7 times [2021-06-06 11:36:10,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:36:10,656 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903323184] [2021-06-06 11:36:10,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:36:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:36:11,264 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 1 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:36:11,264 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:36:11,264 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903323184] [2021-06-06 11:36:11,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903323184] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:36:11,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637288059] [2021-06-06 11:36:11,265 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:36:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:36:11,301 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 64 conjunts are in the unsatisfiable core [2021-06-06 11:36:11,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:36:12,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:12,059 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:36:12,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:12,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:12,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:12,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:12,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:12,062 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:36:12,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:12,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:12,064 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:36:12,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 21 disjoint index pairs (out of 45 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 109 [2021-06-06 11:36:12,068 INFO L550 ElimStorePlain]: Start of recursive call 2: 7 dim-0 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-06-06 11:36:12,077 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:36:12,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:12,080 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:36:12,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:12,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:12,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:12,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:12,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:12,084 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:36:12,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:12,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:12,085 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:36:12,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 21 disjoint index pairs (out of 45 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 77 [2021-06-06 11:36:12,089 INFO L550 ElimStorePlain]: Start of recursive call 3: 7 dim-0 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-06-06 11:36:12,096 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:36:12,208 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-06-06 11:36:12,208 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:36:12,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 77 treesize of output 273 [2021-06-06 11:36:12,644 WARN L205 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 192 [2021-06-06 11:36:13,679 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 239 DAG size of output: 216 [2021-06-06 11:36:16,322 WARN L205 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 270 DAG size of output: 240 [2021-06-06 11:36:18,918 WARN L205 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 270 DAG size of output: 240 [2021-06-06 11:36:21,752 WARN L205 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 292 DAG size of output: 262 [2021-06-06 11:36:31,363 WARN L205 SmtUtils]: Spent 9.61 s on a formula simplification. DAG size of input: 258 DAG size of output: 270 [2021-06-06 11:36:40,842 WARN L205 SmtUtils]: Spent 9.47 s on a formula simplification. DAG size of input: 253 DAG size of output: 274 [2021-06-06 11:36:50,345 WARN L205 SmtUtils]: Spent 9.50 s on a formula simplification. DAG size of input: 248 DAG size of output: 266 [2021-06-06 11:36:52,969 WARN L205 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 240 DAG size of output: 240 [2021-06-06 11:36:53,241 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 145 [2021-06-06 11:36:54,301 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 219 DAG size of output: 219 [2021-06-06 11:36:54,715 WARN L205 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 197 [2021-06-06 11:36:54,987 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 155 [2021-06-06 11:36:55,402 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 167 [2021-06-06 11:36:56,010 WARN L205 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 161 [2021-06-06 11:36:57,177 WARN L205 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 326 DAG size of output: 308 [2021-06-06 11:37:00,247 WARN L205 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 426 DAG size of output: 391 [2021-06-06 11:37:08,146 WARN L205 SmtUtils]: Spent 7.74 s on a formula simplification. DAG size of input: 513 DAG size of output: 465 [2021-06-06 11:37:27,116 WARN L205 SmtUtils]: Spent 18.97 s on a formula simplification. DAG size of input: 595 DAG size of output: 525 [2021-06-06 11:38:15,283 WARN L205 SmtUtils]: Spent 48.16 s on a formula simplification. DAG size of input: 694 DAG size of output: 619 [2021-06-06 11:40:11,425 WARN L205 SmtUtils]: Spent 1.94 m on a formula simplification. DAG size of input: 782 DAG size of output: 704 [2021-06-06 11:44:44,836 WARN L205 SmtUtils]: Spent 4.56 m on a formula simplification. DAG size of input: 867 DAG size of output: 788 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown