/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.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 16:26:34,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 16:26:34,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 16:26:34,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 16:26:34,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 16:26:34,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 16:26:34,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 16:26:34,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 16:26:34,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 16:26:34,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 16:26:34,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 16:26:34,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 16:26:34,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 16:26:34,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 16:26:34,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 16:26:34,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 16:26:34,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 16:26:34,608 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2021-07-14 16:26:34,635 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 16:26:34,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 16:26:34,636 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 16:26:34,636 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 16:26:34,637 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 16:26:34,638 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 16:26:34,638 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 16:26:34,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 16:26:34,638 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 16:26:34,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 16:26:34,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 16:26:34,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 16:26:34,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 16:26:34,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 16:26:34,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 16:26:34,639 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 16:26:34,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 16:26:34,639 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 16:26:34,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 16:26:34,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 16:26:34,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 16:26:34,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 16:26:34,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 16:26:34,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 16:26:34,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 16:26:34,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 16:26:34,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 16:26:34,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 16:26:34,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 16:26:34,641 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 16:26:34,641 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 16:26:34,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 16:26:34,641 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 16:26:34,641 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 16:26:34,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 16:26:34,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 16:26:34,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 16:26:34,898 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 16:26:34,898 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 16:26:34,899 INFO L432 ainManager$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 16:26:34,899 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 16:26:34,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 16:26:34,933 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 16:26:34,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 16:26:34,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 16:26:34,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 16:26:34,952 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 04:26:34" (1/1) ... [2021-07-14 16:26:34,957 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 04:26:34" (1/1) ... [2021-07-14 16:26:34,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 16:26:34,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 16:26:34,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 16:26:34,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 16:26:34,968 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 04:26:34" (1/1) ... [2021-07-14 16:26:34,968 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 04:26:34" (1/1) ... [2021-07-14 16:26:34,969 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 04:26:34" (1/1) ... [2021-07-14 16:26:34,969 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 04:26:34" (1/1) ... [2021-07-14 16:26:34,970 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 04:26:34" (1/1) ... [2021-07-14 16:26:34,973 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 04:26:34" (1/1) ... [2021-07-14 16:26:34,973 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 04:26:34" (1/1) ... [2021-07-14 16:26:34,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 16:26:34,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 16:26:34,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 16:26:34,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 16:26:34,993 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 04:26:34" (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 16:26:35,039 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 16:26:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 16:26:35,039 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 16:26:35,039 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 16:26:35,040 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 16:26:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 16:26:35,040 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 16:26:35,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 16:26:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 16:26:35,040 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 16:26:35,040 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 16:26:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 16:26:35,041 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 16:26:35,229 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 16:26:35,229 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 16:26:35,230 INFO L202 PluginConnector]: Adding new model dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:26:35 BoogieIcfgContainer [2021-07-14 16:26:35,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 16:26:35,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 16:26:35,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 16:26:35,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 16:26:35,234 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 04:26:34" (1/2) ... [2021-07-14 16:26:35,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1bd198 and model type dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 04:26:35, skipping insertion in model container [2021-07-14 16:26:35,234 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 04:26:35" (2/2) ... [2021-07-14 16:26:35,235 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product-alt.wvr.bpl [2021-07-14 16:26:35,239 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 16:26:35,239 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 16:26:35,239 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 16:26:35,240 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 16:26:35,303 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 16:26:35,318 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 16:26:35,357 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 16:26:35,357 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 16:26:35,357 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 16:26:35,357 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 16:26:35,357 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 16:26:35,357 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 16:26:35,357 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 16:26:35,358 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 16:26:35,493 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:26:35,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:26:35,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1618046224, now seen corresponding path program 1 times [2021-07-14 16:26:35,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:26:35,513 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473628209] [2021-07-14 16:26:35,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:26:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:26:35,601 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 16:26:35,602 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:26:35,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473628209] [2021-07-14 16:26:35,602 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473628209] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 16:26:35,603 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 16:26:35,603 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 16:26:35,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489628622] [2021-07-14 16:26:35,608 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 16:26:35,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:26:35,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 16:26:35,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 16:26:35,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:26:35,618 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:26:35,620 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 16:26:35,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:26:35,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:26:35,642 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 16:26:35,642 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:26:35,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:26:35,643 INFO L82 PathProgramCache]: Analyzing trace with hash -234286599, now seen corresponding path program 1 times [2021-07-14 16:26:35,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:26:35,645 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658350250] [2021-07-14 16:26:35,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:26:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:26:35,703 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 16:26:35,704 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:26:35,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658350250] [2021-07-14 16:26:35,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658350250] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 16:26:35,704 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 16:26:35,704 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 16:26:35,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453176621] [2021-07-14 16:26:35,705 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 16:26:35,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:26:35,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 16:26:35,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 16:26:35,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:26:35,707 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:26:35,707 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 16:26:35,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:26:35,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:26:35,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:26:35,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:26:35,737 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 16:26:35,737 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:26:35,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:26:35,737 INFO L82 PathProgramCache]: Analyzing trace with hash 955356590, now seen corresponding path program 1 times [2021-07-14 16:26:35,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:26:35,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249036978] [2021-07-14 16:26:35,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:26:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:26:36,101 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 16:26:36,102 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:26:36,102 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249036978] [2021-07-14 16:26:36,102 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249036978] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:26:36,102 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081738105] [2021-07-14 16:26:36,102 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 16:26:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:26:36,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 16:26:36,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:26:36,383 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:26:36,387 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 16:26:36,391 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 16:26:36,396 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:26:36,398 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:26:36,399 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 16:26:36,404 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 16:26:36,409 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:26:36,411 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 16:26:36,412 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 16:26:36,423 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:26:36,425 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 16:26:36,426 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:29, output treesize:3 [2021-07-14 16:26:36,468 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 16:26:36,468 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081738105] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:26:36,469 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:26:36,469 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-07-14 16:26:36,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722230721] [2021-07-14 16:26:36,470 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 16:26:36,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:26:36,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 16:26:36,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-07-14 16:26:36,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:26:36,473 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:26:36,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:26:36,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:26:36,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:26:36,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:26:36,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:26:36,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:26:36,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:26:36,835 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:26:36,835 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:26:36,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:26:36,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1597364265, now seen corresponding path program 2 times [2021-07-14 16:26:36,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:26:36,836 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315995027] [2021-07-14 16:26:36,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:26:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:26:36,883 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 16:26:36,883 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:26:36,884 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315995027] [2021-07-14 16:26:36,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315995027] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:26:36,884 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110633654] [2021-07-14 16:26:36,884 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 16:26:36,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 16:26:36,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:26:36,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 16:26:36,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:26:37,037 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 16:26:37,038 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110633654] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:26:37,038 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:26:37,038 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-07-14 16:26:37,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522391319] [2021-07-14 16:26:37,038 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-14 16:26:37,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:26:37,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-14 16:26:37,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-07-14 16:26:37,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:26:37,039 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:26:37,039 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 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 16:26:37,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:26:37,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:26:37,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:26:37,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:26:37,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:26:37,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:26:37,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:26:37,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:26:37,433 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:26:37,433 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:26:37,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:26:37,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1317408983, now seen corresponding path program 1 times [2021-07-14 16:26:37,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:26:37,434 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052256349] [2021-07-14 16:26:37,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:26:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:26:37,475 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 16:26:37,475 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:26:37,475 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052256349] [2021-07-14 16:26:37,475 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052256349] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:26:37,476 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520791186] [2021-07-14 16:26:37,476 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 16:26:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:26:37,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 16:26:37,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:26:37,594 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 16:26:37,595 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520791186] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:26:37,595 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:26:37,595 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-14 16:26:37,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796427644] [2021-07-14 16:26:37,595 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 16:26:37,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:26:37,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 16:26:37,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-07-14 16:26:37,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:26:37,597 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:26:37,597 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 16:26:37,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:26:37,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:26:37,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:26:37,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:26:37,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:26:37,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:26:37,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:26:37,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:26:37,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:26:37,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:26:37,900 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:26:37,901 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:26:37,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:26:37,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1005903054, now seen corresponding path program 2 times [2021-07-14 16:26:37,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:26:37,902 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110145038] [2021-07-14 16:26:37,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:26:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:26:38,337 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 16:26:38,337 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:26:38,337 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110145038] [2021-07-14 16:26:38,338 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110145038] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:26:38,338 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991142920] [2021-07-14 16:26:38,338 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 16:26:38,377 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 16:26:38,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:26:38,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-07-14 16:26:38,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:26:47,004 WARN L205 SmtUtils]: Spent 915.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2021-07-14 16:26:48,044 WARN L205 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-07-14 16:26:48,090 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:26:48,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:26:48,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:26:48,092 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 16:26:48,095 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 16:26:48,103 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:26:48,110 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:26:48,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:26:48,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:26:48,112 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 16:26:48,115 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 16:26:48,123 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:26:48,137 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:26:48,137 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 16:26:48,156 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 16:26:48,206 INFO L628 ElimStorePlain]: treesize reduction 68, result has 35.2 percent of original size [2021-07-14 16:26:48,210 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 16:26:48,210 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:70, output treesize:3 [2021-07-14 16:26:48,234 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 16:26:48,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991142920] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:26:48,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:26:48,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2021-07-14 16:26:48,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332510433] [2021-07-14 16:26:48,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-14 16:26:48,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:26:48,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-14 16:26:48,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=735, Unknown=6, NotChecked=0, Total=870 [2021-07-14 16:26:48,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:26:48,236 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:26:48,236 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.066666666666667) internal successors, (62), 30 states have internal predecessors, (62), 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 16:26:48,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:26:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:26:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:26:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:26:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:26:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:27:44,697 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-07-14 16:27:55,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:27:55,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:27:55,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:27:55,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:27:55,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:27:55,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 16:27:56,179 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-14 16:27:56,180 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:27:56,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:27:56,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1937868425, now seen corresponding path program 3 times [2021-07-14 16:27:56,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:27:56,181 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285161558] [2021-07-14 16:27:56,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:27:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:27:56,258 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 16:27:56,258 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:27:56,258 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285161558] [2021-07-14 16:27:56,258 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285161558] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:27:56,258 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843807995] [2021-07-14 16:27:56,258 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 16:27:56,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-14 16:27:56,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:27:56,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 16:27:56,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:27:56,469 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 16:27:56,469 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843807995] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:27:56,469 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:27:56,469 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-07-14 16:27:56,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089657400] [2021-07-14 16:27:56,470 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-14 16:27:56,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:27:56,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-14 16:27:56,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-07-14 16:27:56,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:27:56,471 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:27:56,471 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.25) internal successors, (65), 20 states have internal predecessors, (65), 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 16:27:56,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:27:56,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:27:56,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:27:56,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:27:56,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:27:56,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 16:27:56,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:27:56,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:27:56,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:27:56,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:27:56,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:27:56,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:27:56,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 16:27:56,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 16:27:57,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:27:57,096 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:27:57,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:27:57,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1948341641, now seen corresponding path program 4 times [2021-07-14 16:27:57,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:27:57,097 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943905364] [2021-07-14 16:27:57,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:27:57,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:27:57,195 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 16:27:57,196 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:27:57,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943905364] [2021-07-14 16:27:57,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943905364] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:27:57,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155150859] [2021-07-14 16:27:57,196 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 16:27:57,224 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 16:27:57,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:27:57,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 16:27:57,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:27:57,346 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 16:27:57,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155150859] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:27:57,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:27:57,346 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-07-14 16:27:57,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414409473] [2021-07-14 16:27:57,346 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-14 16:27:57,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:27:57,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-14 16:27:57,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-07-14 16:27:57,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:27:57,347 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:27:57,347 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 16:27:57,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:27:57,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:27:57,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:27:57,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:27:57,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:27:57,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 16:27:57,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 16:27:57,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:27:57,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:27:57,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:27:57,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:27:57,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:27:57,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:27:57,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 16:27:57,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 16:27:57,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 16:27:57,732 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:27:57,733 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:27:57,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:27:57,733 INFO L82 PathProgramCache]: Analyzing trace with hash -891274258, now seen corresponding path program 5 times [2021-07-14 16:27:57,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:27:57,733 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790439846] [2021-07-14 16:27:57,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:27:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:27:58,557 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 16:27:58,557 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:27:58,557 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790439846] [2021-07-14 16:27:58,557 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790439846] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:27:58,557 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022985625] [2021-07-14 16:27:58,557 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 16:27:58,590 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-14 16:27:58,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:27:58,591 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-07-14 16:27:58,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:27:59,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:27:59,627 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:27:59,627 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 16:27:59,643 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 16:27:59,650 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:27:59,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:27:59,653 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:27:59,655 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 16:27:59,661 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 16:27:59,668 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:27:59,714 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:27:59,714 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 16:28:00,544 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 152 [2021-07-14 16:28:00,972 WARN L205 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 216 [2021-07-14 16:28:02,075 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 285 DAG size of output: 262 [2021-07-14 16:28:03,087 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 285 DAG size of output: 262 [2021-07-14 16:28:06,842 WARN L205 SmtUtils]: Spent 3.75 s on a formula simplification. DAG size of input: 296 DAG size of output: 318 [2021-07-14 16:28:07,194 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 130 [2021-07-14 16:28:07,497 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 151 [2021-07-14 16:28:09,853 WARN L205 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 353 DAG size of output: 333 [2021-07-14 16:28:10,970 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 291 DAG size of output: 268 [2021-07-14 16:28:12,003 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 260 DAG size of output: 261 [2021-07-14 16:28:13,179 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 264 DAG size of output: 265 [2021-07-14 16:28:14,273 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 263 DAG size of output: 264 [2021-07-14 16:28:17,822 WARN L205 SmtUtils]: Spent 3.54 s on a formula simplification. DAG size of input: 264 DAG size of output: 311 [2021-07-14 16:28:18,098 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 130 [2021-07-14 16:28:18,378 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 151 [2021-07-14 16:28:20,576 WARN L205 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 345 DAG size of output: 321 [2021-07-14 16:28:21,613 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 259 DAG size of output: 261 [2021-07-14 16:28:22,645 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 259 DAG size of output: 261 [2021-07-14 16:28:23,820 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 263 DAG size of output: 265 [2021-07-14 16:28:23,823 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 16:28:25,486 WARN L205 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 264 DAG size of output: 252 [2021-07-14 16:28:25,487 INFO L628 ElimStorePlain]: treesize reduction 1423, result has 94.1 percent of original size [2021-07-14 16:28:26,655 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 253 DAG size of output: 255 [2021-07-14 16:28:27,569 WARN L205 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 244 [2021-07-14 16:28:27,894 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 201 [2021-07-14 16:28:28,111 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-07-14 16:28:28,464 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-07-14 16:28:29,258 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 201 [2021-07-14 16:28:29,460 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-07-14 16:28:29,796 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-07-14 16:28:30,037 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 16:28:30,037 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:103, output treesize:3 [2021-07-14 16:28:30,063 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 16:28:30,064 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022985625] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:28:30,064 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:28:30,064 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 46 [2021-07-14 16:28:30,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084643199] [2021-07-14 16:28:30,067 INFO L462 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-07-14 16:28:30,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:28:30,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-07-14 16:28:30,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1918, Unknown=0, NotChecked=0, Total=2070 [2021-07-14 16:28:30,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:28:30,068 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:28:30,068 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 1.891304347826087) internal successors, (87), 46 states have internal predecessors, (87), 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 16:28:30,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:28:30,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:28:30,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:28:30,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:28:30,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:28:30,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 16:28:30,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 16:28:30,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 16:28:30,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:28:32,869 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2021-07-14 16:28:33,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:28:33,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:28:33,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 16:28:33,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:28:33,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:28:33,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 16:28:33,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 16:28:33,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 16:28:33,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-14 16:28:33,839 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-07-14 16:28:33,839 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:28:33,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:28:33,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1755547600, now seen corresponding path program 6 times [2021-07-14 16:28:33,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:28:33,839 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151228796] [2021-07-14 16:28:33,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:28:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:28:35,242 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 16:28:35,242 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:28:35,242 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151228796] [2021-07-14 16:28:35,242 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151228796] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:28:35,242 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261085588] [2021-07-14 16:28:35,242 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 16:28:35,289 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-07-14 16:28:35,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:28:35,290 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 61 conjunts are in the unsatisfiable core [2021-07-14 16:28:35,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:29:01,051 WARN L205 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 67 [2021-07-14 16:29:25,190 WARN L205 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 71 [2021-07-14 16:29:46,338 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-07-14 16:29:46,339 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-07-14 16:29:46,540 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable520 [2021-07-14 16:29:46,541 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: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) ... 46 more [2021-07-14 16:29:46,546 INFO L168 Benchmark]: Toolchain (without parser) took 191613.23 ms. Allocated memory was 181.4 MB in the beginning and 601.9 MB in the end (delta: 420.5 MB). Free memory was 160.8 MB in the beginning and 273.0 MB in the end (delta: -112.2 MB). Peak memory consumption was 310.0 MB. Max. memory is 8.0 GB. [2021-07-14 16:29:46,546 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 181.4 MB. Free memory is still 161.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 16:29:46,546 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.88 ms. Allocated memory is still 181.4 MB. Free memory was 160.7 MB in the beginning and 159.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 16:29:46,547 INFO L168 Benchmark]: Boogie Preprocessor took 13.92 ms. Allocated memory is still 181.4 MB. Free memory was 159.2 MB in the beginning and 158.2 MB in the end (delta: 995.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 16:29:46,547 INFO L168 Benchmark]: RCFGBuilder took 253.02 ms. Allocated memory is still 181.4 MB. Free memory was 158.1 MB in the beginning and 146.5 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-07-14 16:29:46,547 INFO L168 Benchmark]: TraceAbstraction took 191314.31 ms. Allocated memory was 181.4 MB in the beginning and 601.9 MB in the end (delta: 420.5 MB). Free memory was 146.0 MB in the beginning and 273.0 MB in the end (delta: -127.0 MB). Peak memory consumption was 294.3 MB. Max. memory is 8.0 GB. [2021-07-14 16:29:46,547 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 0.11 ms. Allocated memory is still 181.4 MB. Free memory is still 161.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 21.88 ms. Allocated memory is still 181.4 MB. Free memory was 160.7 MB in the beginning and 159.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.92 ms. Allocated memory is still 181.4 MB. Free memory was 159.2 MB in the beginning and 158.2 MB in the end (delta: 995.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 253.02 ms. Allocated memory is still 181.4 MB. Free memory was 158.1 MB in the beginning and 146.5 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 191314.31 ms. Allocated memory was 181.4 MB in the beginning and 601.9 MB in the end (delta: 420.5 MB). Free memory was 146.0 MB in the beginning and 273.0 MB in the end (delta: -127.0 MB). Peak memory consumption was 294.3 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...