/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 05:45:07,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 05:45:07,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 05:45:07,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 05:45:07,502 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe.epf [2021-06-06 05:45:07,536 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 05:45:07,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 05:45:07,537 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 05:45:07,537 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 05:45:07,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 05:45:07,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 05:45:07,540 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 05:45:07,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 05:45:07,540 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 05:45:07,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 05:45:07,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 05:45:07,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 05:45:07,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 05:45:07,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 05:45:07,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 05:45:07,542 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 05:45:07,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 05:45:07,542 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 05:45:07,542 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 05:45:07,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 05:45:07,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 05:45:07,543 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 05:45:07,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 05:45:07,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 05:45:07,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 05:45:07,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 05:45:07,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 05:45:07,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 05:45:07,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 05:45:07,544 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 05:45:07,544 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 05:45:07,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 05:45:07,545 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 05:45:07,545 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 05:45:07,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 05:45:07,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 05:45:07,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 05:45:07,917 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 05:45:07,918 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 05:45:07,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq.wvr.bpl [2021-06-06 05:45:07,919 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq.wvr.bpl' [2021-06-06 05:45:07,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 05:45:07,944 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 05:45:07,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 05:45:07,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 05:45:07,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 05:45:07,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:07" (1/1) ... [2021-06-06 05:45:07,964 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:07" (1/1) ... [2021-06-06 05:45:07,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 05:45:07,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 05:45:07,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 05:45:07,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 05:45:07,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:07" (1/1) ... [2021-06-06 05:45:07,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:07" (1/1) ... [2021-06-06 05:45:07,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:07" (1/1) ... [2021-06-06 05:45:07,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:07" (1/1) ... [2021-06-06 05:45:07,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:07" (1/1) ... [2021-06-06 05:45:07,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:07" (1/1) ... [2021-06-06 05:45:07,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:07" (1/1) ... [2021-06-06 05:45:07,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 05:45:07,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 05:45:07,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 05:45:07,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 05:45:07,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 05:45:08,063 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 05:45:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 05:45:08,064 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 05:45:08,064 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 05:45:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 05:45:08,064 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 05:45:08,065 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 05:45:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 05:45:08,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 05:45:08,066 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 05:45:08,283 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 05:45:08,283 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 05:45:08,285 INFO L202 PluginConnector]: Adding new model inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 05:45:08 BoogieIcfgContainer [2021-06-06 05:45:08,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 05:45:08,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 05:45:08,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 05:45:08,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 05:45:08,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:07" (1/2) ... [2021-06-06 05:45:08,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b8644c and model type inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 05:45:08, skipping insertion in model container [2021-06-06 05:45:08,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 05:45:08" (2/2) ... [2021-06-06 05:45:08,291 INFO L111 eAbstractionObserver]: Analyzing ICFG inc-subseq.wvr.bpl [2021-06-06 05:45:08,295 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 05:45:08,296 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 05:45:08,296 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 05:45:08,297 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 05:45:08,323 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-06 05:45:08,340 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-06 05:45:08,415 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 05:45:08,415 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 05:45:08,415 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 05:45:08,415 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 05:45:08,415 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 05:45:08,415 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 05:45:08,415 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 05:45:08,416 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 05:45:08,531 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:45:08,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:45:08,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1116390347, now seen corresponding path program 1 times [2021-06-06 05:45:08,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:45:08,545 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685363527] [2021-06-06 05:45:08,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:45:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:45:08,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:45:08,697 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:45:08,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685363527] [2021-06-06 05:45:08,698 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685363527] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 05:45:08,698 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 05:45:08,699 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-06 05:45:08,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125365756] [2021-06-06 05:45:08,704 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 05:45:08,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:45:08,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 05:45:08,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 05:45:08,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:45:08,722 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:45:08,727 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:45:08,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:45:08,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:45:08,785 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 05:45:08,785 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:45:08,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:45:08,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1484219061, now seen corresponding path program 1 times [2021-06-06 05:45:08,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:45:08,789 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156001290] [2021-06-06 05:45:08,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:45:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:45:08,833 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 05:45:08,833 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:45:08,833 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156001290] [2021-06-06 05:45:08,833 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156001290] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 05:45:08,833 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 05:45:08,834 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 05:45:08,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709623343] [2021-06-06 05:45:08,835 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 05:45:08,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:45:08,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 05:45:08,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-06 05:45:08,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:45:08,836 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:45:08,836 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) [2021-06-06 05:45:08,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:45:08,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:45:08,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:45:08,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 05:45:08,886 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-06 05:45:08,886 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:45:08,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:45:08,887 INFO L82 PathProgramCache]: Analyzing trace with hash -784874741, now seen corresponding path program 1 times [2021-06-06 05:45:08,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:45:08,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196887278] [2021-06-06 05:45:08,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:45:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:45:09,105 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-06 05:45:09,105 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:45:09,105 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196887278] [2021-06-06 05:45:09,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196887278] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:45:09,106 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527966365] [2021-06-06 05:45:09,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:45:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:45:09,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-06 05:45:09,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:45:09,288 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-06 05:45:09,289 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527966365] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:45:09,289 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:45:09,289 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4] total 12 [2021-06-06 05:45:09,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425617506] [2021-06-06 05:45:09,290 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-06 05:45:09,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:45:09,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-06 05:45:09,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-06-06 05:45:09,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:45:09,291 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:45:09,292 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:45:09,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:45:09,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 05:45:09,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:45:09,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:45:09,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 05:45:09,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:45:09,752 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:45:09,753 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:45:09,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:45:09,754 INFO L82 PathProgramCache]: Analyzing trace with hash 790758472, now seen corresponding path program 2 times [2021-06-06 05:45:09,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:45:09,754 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185222404] [2021-06-06 05:45:09,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:45:09,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:45:10,754 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:45:10,754 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:45:10,755 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185222404] [2021-06-06 05:45:10,755 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185222404] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:45:10,755 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668681961] [2021-06-06 05:45:10,755 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:45:10,815 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 05:45:10,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:45:10,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 46 conjunts are in the unsatisfiable core [2021-06-06 05:45:10,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:45:12,486 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:45:12,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 84 [2021-06-06 05:45:12,508 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 05:45:12,610 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2021-06-06 05:45:12,611 INFO L628 ElimStorePlain]: treesize reduction 67, result has 66.8 percent of original size [2021-06-06 05:45:12,649 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-06 05:45:12,649 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:70, output treesize:66 [2021-06-06 05:45:19,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:19,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:19,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:19,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:19,680 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:45:19,726 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:45:19,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 40 treesize of output 88 [2021-06-06 05:45:20,089 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-06-06 05:45:20,179 INFO L628 ElimStorePlain]: treesize reduction 142, result has 17.9 percent of original size [2021-06-06 05:45:20,187 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 05:45:20,188 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:55, output treesize:21 [2021-06-06 05:45:20,314 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 3 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:45:20,314 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668681961] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:45:20,314 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:45:20,314 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 27] total 51 [2021-06-06 05:45:20,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32520269] [2021-06-06 05:45:20,316 INFO L462 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-06-06 05:45:20,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:45:20,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-06-06 05:45:20,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=313, Invalid=2337, Unknown=2, NotChecked=0, Total=2652 [2021-06-06 05:45:20,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:45:20,320 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:45:20,320 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 52 states, 52 states have (on average 1.8653846153846154) internal successors, (97), 51 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:45:20,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:45:20,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 05:45:20,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:45:20,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:45:23,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:45:23,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 05:45:23,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:45:23,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-06 05:45:23,557 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:45:23,557 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:45:23,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:45:23,558 INFO L82 PathProgramCache]: Analyzing trace with hash 218004733, now seen corresponding path program 3 times [2021-06-06 05:45:23,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:45:23,558 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92878999] [2021-06-06 05:45:23,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:45:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:45:23,668 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 78 proven. 86 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-06-06 05:45:23,668 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:45:23,669 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92878999] [2021-06-06 05:45:23,669 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92878999] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:45:23,669 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378798623] [2021-06-06 05:45:23,669 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:45:23,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-06-06 05:45:23,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:45:23,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-06 05:45:23,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:45:23,865 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 101 proven. 63 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-06-06 05:45:23,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378798623] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:45:23,866 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:45:23,866 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-06-06 05:45:23,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680575987] [2021-06-06 05:45:23,867 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-06 05:45:23,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:45:23,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-06 05:45:23,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-06-06 05:45:23,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:45:23,869 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:45:23,869 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:45:23,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:45:23,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 05:45:23,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:45:23,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-06 05:45:23,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:45:23,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:45:23,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 05:45:23,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:45:23,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-06 05:45:23,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:45:24,128 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:45:24,129 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:45:24,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:45:24,129 INFO L82 PathProgramCache]: Analyzing trace with hash 370970794, now seen corresponding path program 4 times [2021-06-06 05:45:24,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:45:24,130 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143215001] [2021-06-06 05:45:24,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:45:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:45:25,454 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:45:25,455 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:45:25,455 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143215001] [2021-06-06 05:45:25,455 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143215001] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:45:25,455 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310926132] [2021-06-06 05:45:25,455 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:45:25,509 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 05:45:25,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:45:25,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 71 conjunts are in the unsatisfiable core [2021-06-06 05:45:25,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:45:28,104 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:45:28,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 90 treesize of output 178 [2021-06-06 05:45:28,146 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 05:45:28,393 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 103 [2021-06-06 05:45:28,394 INFO L628 ElimStorePlain]: treesize reduction 178, result has 65.1 percent of original size [2021-06-06 05:45:28,510 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-06 05:45:28,510 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:108, output treesize:121 [2021-06-06 05:45:29,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:29,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:29,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:29,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:29,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:29,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:29,939 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:45:29,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:29,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:29,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:29,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:29,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:29,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:29,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:29,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:29,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:29,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:29,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:29,948 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:45:29,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:45:29,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 22 [2021-06-06 05:45:29,952 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 05:45:29,958 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:45:29,959 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 05:45:29,959 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:79, output treesize:5 [2021-06-06 05:45:29,974 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 13 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:45:29,974 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310926132] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:45:29,974 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:45:29,974 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 38] total 74 [2021-06-06 05:45:29,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483897994] [2021-06-06 05:45:29,975 INFO L462 AbstractCegarLoop]: Interpolant automaton has 75 states [2021-06-06 05:45:29,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:45:29,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-06-06 05:45:29,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=462, Invalid=5088, Unknown=0, NotChecked=0, Total=5550 [2021-06-06 05:45:29,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:45:29,977 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:45:29,978 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 75 states, 75 states have (on average 1.7333333333333334) internal successors, (130), 74 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:45:29,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:45:29,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 05:45:29,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:45:29,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-06 05:45:29,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:45:29,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:45:31,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:45:31,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 05:45:31,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:45:31,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-06 05:45:31,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:45:31,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 05:45:31,894 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:45:31,894 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:45:31,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:45:31,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1427633162, now seen corresponding path program 5 times [2021-06-06 05:45:31,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:45:31,895 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256714252] [2021-06-06 05:45:31,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:45:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:45:32,000 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 180 proven. 185 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-06-06 05:45:32,000 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:45:32,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256714252] [2021-06-06 05:45:32,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256714252] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:45:32,001 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501107241] [2021-06-06 05:45:32,001 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:45:32,083 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2021-06-06 05:45:32,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:45:32,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 21 conjunts are in the unsatisfiable core [2021-06-06 05:45:32,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:45:32,254 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 212 proven. 153 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-06-06 05:45:32,254 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501107241] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:45:32,254 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:45:32,254 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-06-06 05:45:32,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536551272] [2021-06-06 05:45:32,255 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-06 05:45:32,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:45:32,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-06 05:45:32,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-06-06 05:45:32,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:45:32,256 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:45:32,256 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:45:32,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:45:32,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 05:45:32,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:45:32,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-06 05:45:32,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:45:32,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 05:45:32,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:45:32,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:45:32,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 05:45:32,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:45:32,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-06 05:45:32,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 05:45:32,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 05:45:32,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 05:45:32,522 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:45:32,522 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:45:32,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:45:32,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1387776392, now seen corresponding path program 6 times [2021-06-06 05:45:32,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:45:32,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645315512] [2021-06-06 05:45:32,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:45:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:45:34,362 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 293 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:45:34,363 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:45:34,363 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645315512] [2021-06-06 05:45:34,363 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645315512] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:45:34,363 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570791730] [2021-06-06 05:45:34,363 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:45:34,413 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-06-06 05:45:34,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:45:34,415 WARN L261 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 96 conjunts are in the unsatisfiable core [2021-06-06 05:45:34,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:45:36,129 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2021-06-06 05:47:39,978 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-06-06 05:47:39,979 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-06-06 05:47:40,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:47:40,181 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.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:934) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java: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:643) 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:364) 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) ... 46 more [2021-06-06 05:47:40,186 INFO L168 Benchmark]: Toolchain (without parser) took 152242.01 ms. Allocated memory was 375.4 MB in the beginning and 450.9 MB in the end (delta: 75.5 MB). Free memory was 354.5 MB in the beginning and 242.9 MB in the end (delta: 111.6 MB). Peak memory consumption was 190.7 MB. Max. memory is 16.0 GB. [2021-06-06 05:47:40,186 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 375.4 MB. Free memory is still 355.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-06 05:47:40,186 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.77 ms. Allocated memory is still 375.4 MB. Free memory was 354.4 MB in the beginning and 353.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-06 05:47:40,186 INFO L168 Benchmark]: Boogie Preprocessor took 14.34 ms. Allocated memory is still 375.4 MB. Free memory was 353.0 MB in the beginning and 352.0 MB in the end (delta: 961.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-06 05:47:40,186 INFO L168 Benchmark]: RCFGBuilder took 288.57 ms. Allocated memory is still 375.4 MB. Free memory was 351.9 MB in the beginning and 339.0 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-06 05:47:40,186 INFO L168 Benchmark]: TraceAbstraction took 151898.68 ms. Allocated memory was 375.4 MB in the beginning and 450.9 MB in the end (delta: 75.5 MB). Free memory was 338.7 MB in the beginning and 242.9 MB in the end (delta: 95.8 MB). Peak memory consumption was 173.9 MB. Max. memory is 16.0 GB. [2021-06-06 05:47:40,187 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 375.4 MB. Free memory is still 355.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 35.77 ms. Allocated memory is still 375.4 MB. Free memory was 354.4 MB in the beginning and 353.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.34 ms. Allocated memory is still 375.4 MB. Free memory was 353.0 MB in the beginning and 352.0 MB in the end (delta: 961.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 288.57 ms. Allocated memory is still 375.4 MB. Free memory was 351.9 MB in the beginning and 339.0 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 151898.68 ms. Allocated memory was 375.4 MB in the beginning and 450.9 MB in the end (delta: 75.5 MB). Free memory was 338.7 MB in the beginning and 242.9 MB in the end (delta: 95.8 MB). Peak memory consumption was 173.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...