/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistent-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 13:48:33,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 13:48:33,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 13:48:33,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 13:48:33,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 13:48:33,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 13:48:33,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 13:48:33,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 13:48:33,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 13:48:33,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 13:48:33,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 13:48:33,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 13:48:33,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 13:48:33,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 13:48:33,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 13:48:33,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 13:48:33,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 13:48:33,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 13:48:33,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 13:48:33,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 13:48:33,511 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-NewStatesSleepPersistent-NoLbe-Lockstep.epf [2021-07-14 13:48:33,550 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 13:48:33,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 13:48:33,551 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 13:48:33,551 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 13:48:33,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 13:48:33,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 13:48:33,554 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 13:48:33,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 13:48:33,554 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 13:48:33,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 13:48:33,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 13:48:33,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 13:48:33,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 13:48:33,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 13:48:33,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 13:48:33,556 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 13:48:33,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 13:48:33,556 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 13:48:33,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 13:48:33,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 13:48:33,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 13:48:33,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 13:48:33,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 13:48:33,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 13:48:33,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 13:48:33,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 13:48:33,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 13:48:33,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 13:48:33,558 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-14 13:48:33,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 13:48:33,558 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 13:48:33,558 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 13:48:33,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 13:48:33,559 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-07-14 13:48:33,559 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 13:48:33,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 13:48:33,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 13:48:33,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 13:48:33,855 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 13:48:33,856 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 13:48:33,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl [2021-07-14 13:48:33,857 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl' [2021-07-14 13:48:33,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 13:48:33,907 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 13:48:33,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 13:48:33,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 13:48:33,908 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 13:48:33,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:48:33" (1/1) ... [2021-07-14 13:48:33,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:48:33" (1/1) ... [2021-07-14 13:48:33,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 13:48:33,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 13:48:33,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 13:48:33,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 13:48:33,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:48:33" (1/1) ... [2021-07-14 13:48:33,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:48:33" (1/1) ... [2021-07-14 13:48:33,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:48:33" (1/1) ... [2021-07-14 13:48:33,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:48:33" (1/1) ... [2021-07-14 13:48:33,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:48:33" (1/1) ... [2021-07-14 13:48:33,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:48:33" (1/1) ... [2021-07-14 13:48:33,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:48:33" (1/1) ... [2021-07-14 13:48:33,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 13:48:33,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 13:48:33,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 13:48:33,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 13:48:33,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:48:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 13:48:34,066 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 13:48:34,066 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 13:48:34,066 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 13:48:34,066 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 13:48:34,067 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 13:48:34,067 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 13:48:34,067 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 13:48:34,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 13:48:34,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 13:48:34,068 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 13:48:34,068 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 13:48:34,068 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 13:48:34,069 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 13:48:34,221 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 13:48:34,221 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 13:48:34,223 INFO L202 PluginConnector]: Adding new model dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:48:34 BoogieIcfgContainer [2021-07-14 13:48:34,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 13:48:34,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 13:48:34,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 13:48:34,227 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 13:48:34,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:48:33" (1/2) ... [2021-07-14 13:48:34,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138f5921 and model type dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:48:34, skipping insertion in model container [2021-07-14 13:48:34,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:48:34" (2/2) ... [2021-07-14 13:48:34,230 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product-alt.wvr.bpl [2021-07-14 13:48:34,234 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 13:48:34,235 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 13:48:34,235 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 13:48:34,235 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 13:48:34,272 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 13:48:34,292 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 13:48:34,361 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 13:48:34,361 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 13:48:34,361 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 13:48:34,361 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 13:48:34,361 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 13:48:34,361 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 13:48:34,361 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 13:48:34,361 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 13:48:34,488 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:48:34,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:48:34,493 INFO L82 PathProgramCache]: Analyzing trace with hash 599662768, now seen corresponding path program 1 times [2021-07-14 13:48:34,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:48:34,501 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915659248] [2021-07-14 13:48:34,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:48:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:48:34,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:48:34,686 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:48:34,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915659248] [2021-07-14 13:48:34,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915659248] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 13:48:34,687 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 13:48:34,687 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 13:48:34,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74402396] [2021-07-14 13:48:34,691 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 13:48:34,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:48:34,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 13:48:34,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 13:48:34,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:48:34,709 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:48:34,712 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) [2021-07-14 13:48:34,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:48:34,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:48:34,755 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 13:48:34,755 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:48:34,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:48:34,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1252670055, now seen corresponding path program 1 times [2021-07-14 13:48:34,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:48:34,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064267702] [2021-07-14 13:48:34,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:48:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:48:34,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 13:48:34,833 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:48:34,833 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064267702] [2021-07-14 13:48:34,833 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064267702] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 13:48:34,834 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 13:48:34,834 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 13:48:34,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672383890] [2021-07-14 13:48:34,836 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 13:48:34,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:48:34,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 13:48:34,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 13:48:34,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:48:34,840 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:48:34,840 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 13:48:34,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:48:34,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:48:34,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:48:34,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:48:34,932 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 13:48:34,932 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:48:34,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:48:34,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1166575408, now seen corresponding path program 1 times [2021-07-14 13:48:34,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:48:34,934 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966655176] [2021-07-14 13:48:34,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:48:34,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:48:35,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:48:35,415 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:48:35,415 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966655176] [2021-07-14 13:48:35,415 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966655176] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:48:35,415 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209536516] [2021-07-14 13:48:35,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:48:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:48:35,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 13:48:35,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:48:35,759 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 13:48:35,764 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 [2021-07-14 13:48:35,770 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-14 13:48:35,777 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 13:48:35,780 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 13:48:35,781 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 [2021-07-14 13:48:35,786 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-14 13:48:35,793 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 13:48:35,796 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 [2021-07-14 13:48:35,797 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 13:48:35,802 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 13:48:35,807 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. [2021-07-14 13:48:35,807 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:29, output treesize:3 [2021-07-14 13:48:35,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:48:35,872 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209536516] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:48:35,872 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:48:35,872 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-07-14 13:48:35,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753677271] [2021-07-14 13:48:35,873 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 13:48:35,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:48:35,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 13:48:35,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-07-14 13:48:35,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:48:35,874 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:48:35,874 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 13 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 13:48:35,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:48:35,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:48:35,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:48:36,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:48:36,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:48:36,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 13:48:36,306 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:48:36,306 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:48:36,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:48:36,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1386145447, now seen corresponding path program 2 times [2021-07-14 13:48:36,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:48:36,307 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919802312] [2021-07-14 13:48:36,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:48:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:48:36,377 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:48:36,378 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:48:36,378 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919802312] [2021-07-14 13:48:36,378 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919802312] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:48:36,378 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919220131] [2021-07-14 13:48:36,378 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 [2021-07-14 13:48:36,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 13:48:36,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:48:36,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 13:48:36,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:48:36,543 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:48:36,544 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919220131] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:48:36,544 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:48:36,544 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-07-14 13:48:36,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615992178] [2021-07-14 13:48:36,545 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-14 13:48:36,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:48:36,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-14 13:48:36,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-07-14 13:48:36,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:48:36,546 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:48:36,546 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 13:48:36,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:48:36,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:48:36,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 13:48:36,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:48:36,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:48:36,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:48:36,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 13:48:36,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 13:48:36,928 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:48:36,929 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:48:36,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:48:36,930 INFO L82 PathProgramCache]: Analyzing trace with hash 2063732569, now seen corresponding path program 1 times [2021-07-14 13:48:36,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:48:36,930 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933948667] [2021-07-14 13:48:36,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:48:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:48:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 13:48:36,997 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:48:36,997 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933948667] [2021-07-14 13:48:36,997 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933948667] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:48:36,997 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117910702] [2021-07-14 13:48:36,997 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 [2021-07-14 13:48:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:48:37,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 13:48:37,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:48:37,170 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 13:48:37,170 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117910702] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:48:37,170 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:48:37,171 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-14 13:48:37,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223382189] [2021-07-14 13:48:37,171 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 13:48:37,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:48:37,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 13:48:37,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-07-14 13:48:37,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:48:37,173 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:48:37,174 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 13:48:37,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:48:37,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:48:37,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 13:48:37,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 13:48:37,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:48:37,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:48:37,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:48:37,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 13:48:37,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 13:48:37,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 13:48:37,514 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:48:37,515 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:48:37,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:48:37,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1752226640, now seen corresponding path program 2 times [2021-07-14 13:48:37,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:48:37,516 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097315542] [2021-07-14 13:48:37,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:48:37,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:48:38,133 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:48:38,134 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:48:38,134 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097315542] [2021-07-14 13:48:38,134 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097315542] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:48:38,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610118447] [2021-07-14 13:48:38,136 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 [2021-07-14 13:48:38,186 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 13:48:38,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:48:38,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-07-14 13:48:38,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:48:44,618 WARN L205 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2021-07-14 13:48:44,911 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 13:48:44,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 13:48:44,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 13:48:44,915 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 49 [2021-07-14 13:48:44,921 INFO L550 ElimStorePlain]: Start of recursive call 2: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-14 13:48:44,932 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 13:48:44,942 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 13:48:44,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 13:48:44,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 13:48:44,944 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2021-07-14 13:48:44,949 INFO L550 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-14 13:48:44,959 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 13:48:44,979 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 13:48:44,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 49 [2021-07-14 13:48:45,018 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 13:48:45,089 INFO L628 ElimStorePlain]: treesize reduction 68, result has 35.2 percent of original size [2021-07-14 13:48:45,093 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. [2021-07-14 13:48:45,093 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:70, output treesize:3 [2021-07-14 13:48:45,131 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:48:45,132 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610118447] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:48:45,133 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:48:45,133 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2021-07-14 13:48:45,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820083502] [2021-07-14 13:48:45,134 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-14 13:48:45,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:48:45,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-14 13:48:45,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=737, Unknown=4, NotChecked=0, Total=870 [2021-07-14 13:48:45,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:48:45,137 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:48:45,137 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.0) internal successors, (60), 30 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 13:48:45,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:48:45,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:48:45,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 13:48:45,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 13:48:45,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 13:48:45,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:49:52,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:49:52,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:49:52,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 13:49:52,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 13:49:52,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 13:49:52,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 13:49:52,285 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-14 13:49:52,285 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:49:52,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:49:52,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1191544839, now seen corresponding path program 3 times [2021-07-14 13:49:52,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:49:52,288 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939552093] [2021-07-14 13:49:52,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:49:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:49:52,378 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:49:52,378 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:49:52,378 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939552093] [2021-07-14 13:49:52,378 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939552093] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:49:52,378 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586134800] [2021-07-14 13:49:52,379 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 [2021-07-14 13:49:52,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-14 13:49:52,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:49:52,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 13:49:52,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:49:52,654 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:49:52,654 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586134800] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:49:52,654 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:49:52,655 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-07-14 13:49:52,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726569353] [2021-07-14 13:49:52,655 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-14 13:49:52,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:49:52,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-14 13:49:52,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-07-14 13:49:52,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:49:52,656 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:49:52,656 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 13:49:52,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:49:52,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:49:52,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 13:49:52,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 13:49:52,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 13:49:52,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 13:49:52,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:49:53,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:49:53,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:49:53,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 13:49:53,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 13:49:53,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 13:49:53,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 13:49:53,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 13:49:53,348 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:49:53,349 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:49:53,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:49:53,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1233253881, now seen corresponding path program 4 times [2021-07-14 13:49:53,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:49:53,349 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349682620] [2021-07-14 13:49:53,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:49:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:49:53,461 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 13:49:53,461 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:49:53,461 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349682620] [2021-07-14 13:49:53,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349682620] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:49:53,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730101555] [2021-07-14 13:49:53,462 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 [2021-07-14 13:49:53,513 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 13:49:53,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:49:53,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 13:49:53,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:49:53,685 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 13:49:53,685 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730101555] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:49:53,685 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:49:53,686 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-07-14 13:49:53,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94364942] [2021-07-14 13:49:53,686 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-14 13:49:53,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:49:53,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-14 13:49:53,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-07-14 13:49:53,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:49:53,687 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:49:53,687 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 13:49:53,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:49:53,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:49:53,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 13:49:53,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 13:49:53,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 13:49:53,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 13:49:53,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 13:49:53,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:49:53,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:49:53,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:49:53,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 13:49:53,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 13:49:53,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 13:49:53,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 13:49:53,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 13:49:53,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 13:49:54,158 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 13:49:54,159 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:49:54,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:49:54,159 INFO L82 PathProgramCache]: Analyzing trace with hash -2004646032, now seen corresponding path program 5 times [2021-07-14 13:49:54,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:49:54,159 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212248467] [2021-07-14 13:49:54,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:49:54,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:49:55,121 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 9 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:49:55,122 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:49:55,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212248467] [2021-07-14 13:49:55,122 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212248467] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:49:55,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395247003] [2021-07-14 13:49:55,122 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 [2021-07-14 13:49:55,170 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-14 13:49:55,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:49:55,171 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-07-14 13:49:55,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:49:56,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 13:49:56,387 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 13:49:56,388 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 [2021-07-14 13:49:56,392 INFO L550 ElimStorePlain]: Start of recursive call 2: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-07-14 13:49:56,402 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 13:49:56,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 13:49:56,406 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 13:49:56,406 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 [2021-07-14 13:49:56,410 INFO L550 ElimStorePlain]: Start of recursive call 3: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-07-14 13:49:56,420 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 13:49:56,477 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 13:49:56,477 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 [2021-07-14 13:49:56,720 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2021-07-14 13:49:56,835 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2021-07-14 13:49:56,979 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 140 [2021-07-14 13:49:57,117 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 136 [2021-07-14 13:49:57,355 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 119 [2021-07-14 13:49:57,847 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 152 [2021-07-14 13:49:58,483 WARN L205 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 216 [2021-07-14 13:49:59,751 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 285 DAG size of output: 262 [2021-07-14 13:50:00,784 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 285 DAG size of output: 262 [2021-07-14 13:50:04,707 WARN L205 SmtUtils]: Spent 3.92 s on a formula simplification. DAG size of input: 296 DAG size of output: 318 [2021-07-14 13:50:05,133 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 130 [2021-07-14 13:50:05,527 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 151 [2021-07-14 13:50:08,014 WARN L205 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 353 DAG size of output: 333 [2021-07-14 13:50:09,111 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 291 DAG size of output: 268 [2021-07-14 13:50:10,160 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 260 DAG size of output: 261 [2021-07-14 13:50:11,330 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 264 DAG size of output: 265 [2021-07-14 13:50:12,427 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 263 DAG size of output: 264 [2021-07-14 13:50:15,957 WARN L205 SmtUtils]: Spent 3.52 s on a formula simplification. DAG size of input: 264 DAG size of output: 311 [2021-07-14 13:50:16,299 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 130 [2021-07-14 13:50:16,641 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 151 [2021-07-14 13:50:18,943 WARN L205 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 345 DAG size of output: 321 [2021-07-14 13:50:19,979 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 259 DAG size of output: 261 [2021-07-14 13:50:21,009 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 259 DAG size of output: 261 [2021-07-14 13:50:22,170 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 263 DAG size of output: 265 [2021-07-14 13:50:22,173 INFO L550 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-14 13:50:23,974 WARN L205 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 264 DAG size of output: 252 [2021-07-14 13:50:23,975 INFO L628 ElimStorePlain]: treesize reduction 1423, result has 94.1 percent of original size [2021-07-14 13:50:25,124 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 253 DAG size of output: 255 [2021-07-14 13:50:26,042 WARN L205 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 244 [2021-07-14 13:50:26,360 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 201 [2021-07-14 13:50:26,692 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-07-14 13:50:27,177 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-07-14 13:50:27,315 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 125 [2021-07-14 13:50:28,235 WARN L205 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 201 [2021-07-14 13:50:28,489 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-07-14 13:50:28,956 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-07-14 13:50:29,241 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. [2021-07-14 13:50:29,241 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:103, output treesize:3 [2021-07-14 13:50:29,275 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:50:29,275 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395247003] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:50:29,275 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:50:29,275 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 46 [2021-07-14 13:50:29,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784935671] [2021-07-14 13:50:29,276 INFO L462 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-07-14 13:50:29,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:50:29,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-07-14 13:50:29,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1918, Unknown=0, NotChecked=0, Total=2070 [2021-07-14 13:50:29,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:50:29,277 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:50:29,277 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 1.8478260869565217) internal successors, (85), 46 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 13:50:29,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:50:29,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:50:29,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 13:50:29,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 13:50:29,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 13:50:29,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 13:50:29,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 13:50:29,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 13:50:29,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:50:32,326 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2021-07-14 13:50:33,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:50:33,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:50:33,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 13:50:33,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 13:50:33,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 13:50:33,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 13:50:33,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 13:50:33,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 13:50:33,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-14 13:50:33,346 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-07-14 13:50:33,346 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:50:33,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:50:33,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1741734352, now seen corresponding path program 6 times [2021-07-14 13:50:33,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:50:33,347 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366497685] [2021-07-14 13:50:33,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:50:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:50:34,707 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:50:34,708 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:50:34,708 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366497685] [2021-07-14 13:50:34,708 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366497685] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:50:34,708 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721087623] [2021-07-14 13:50:34,708 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 [2021-07-14 13:50:34,752 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-07-14 13:50:34,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:50:34,753 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 61 conjunts are in the unsatisfiable core [2021-07-14 13:50:34,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:51:00,610 WARN L205 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 67 [2021-07-14 13:51:24,753 WARN L205 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 71 [2021-07-14 13:51:51,851 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-07-14 13:51:51,852 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-07-14 13:51:52,053 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable520 [2021-07-14 13:51:52,053 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:173) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:140) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:597) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:238) ... 53 more [2021-07-14 13:51:52,058 INFO L168 Benchmark]: Toolchain (without parser) took 198151.96 ms. Allocated memory was 220.2 MB in the beginning and 879.8 MB in the end (delta: 659.6 MB). Free memory was 199.8 MB in the beginning and 391.5 MB in the end (delta: -191.7 MB). Peak memory consumption was 468.9 MB. Max. memory is 8.0 GB. [2021-07-14 13:51:52,058 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 220.2 MB. Free memory was 200.9 MB in the beginning and 200.8 MB in the end (delta: 137.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 13:51:52,058 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.77 ms. Allocated memory is still 220.2 MB. Free memory was 199.6 MB in the beginning and 198.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 13:51:52,058 INFO L168 Benchmark]: Boogie Preprocessor took 26.66 ms. Allocated memory is still 220.2 MB. Free memory was 198.2 MB in the beginning and 197.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 13:51:52,058 INFO L168 Benchmark]: RCFGBuilder took 245.55 ms. Allocated memory is still 220.2 MB. Free memory was 197.2 MB in the beginning and 185.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-14 13:51:52,059 INFO L168 Benchmark]: TraceAbstraction took 197832.85 ms. Allocated memory was 220.2 MB in the beginning and 879.8 MB in the end (delta: 659.6 MB). Free memory was 184.7 MB in the beginning and 391.5 MB in the end (delta: -206.8 MB). Peak memory consumption was 454.2 MB. Max. memory is 8.0 GB. [2021-07-14 13:51:52,060 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 220.2 MB. Free memory was 200.9 MB in the beginning and 200.8 MB in the end (delta: 137.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 40.77 ms. Allocated memory is still 220.2 MB. Free memory was 199.6 MB in the beginning and 198.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.66 ms. Allocated memory is still 220.2 MB. Free memory was 198.2 MB in the beginning and 197.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 245.55 ms. Allocated memory is still 220.2 MB. Free memory was 197.2 MB in the beginning and 185.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 197832.85 ms. Allocated memory was 220.2 MB in the beginning and 879.8 MB in the end (delta: 659.6 MB). Free memory was 184.7 MB in the beginning and 391.5 MB in the end (delta: -206.8 MB). Peak memory consumption was 454.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...