/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-more/dec-subseq.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 11:55:30,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 11:55:30,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 11:55:30,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-10 11:55:30,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-10 11:55:30,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-10 11:55:30,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-10 11:55:30,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-10 11:55:30,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-10 11:55:30,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-10 11:55:30,369 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-10 11:55:30,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-10 11:55:30,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-10 11:55:30,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-10 11:55:30,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-10 11:55:30,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-10 11:55:30,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-10 11:55:30,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-10 11:55:30,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-10 11:55:30,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-10 11:55:30,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-10 11:55:30,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-10 11:55:30,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-10 11:55:30,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-10 11:55:30,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-10 11:55:30,397 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-10 11:55:30,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-10 11:55:30,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-10 11:55:30,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-10 11:55:30,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-10 11:55:30,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-10 11:55:30,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-10 11:55:30,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-10 11:55:30,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-10 11:55:30,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-10 11:55:30,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-10 11:55:30,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-10 11:55:30,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-10 11:55:30,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-10 11:55:30,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-10 11:55:30,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-10 11:55:30,428 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 [2021-07-10 11:55:30,446 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 11:55:30,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 11:55:30,446 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 11:55:30,447 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 11:55:30,447 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 11:55:30,448 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 11:55:30,448 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 11:55:30,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 11:55:30,448 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 11:55:30,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 11:55:30,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 11:55:30,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 11:55:30,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 11:55:30,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 11:55:30,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 11:55:30,449 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 11:55:30,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 11:55:30,449 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 11:55:30,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 11:55:30,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 11:55:30,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 11:55:30,450 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 11:55:30,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 11:55:30,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 11:55:30,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 11:55:30,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 11:55:30,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 11:55:30,451 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 11:55:30,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 11:55:30,451 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 11:55:30,451 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 11:55:30,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 11:55:30,451 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-10 11:55:30,451 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 11:55:30,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 11:55:30,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 11:55:30,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 11:55:30,729 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 11:55:30,730 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 11:55:30,730 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq.wvr.bpl [2021-07-10 11:55:30,731 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq.wvr.bpl' [2021-07-10 11:55:30,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 11:55:30,763 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 11:55:30,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 11:55:30,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 11:55:30,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 11:55:30,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:55:30" (1/1) ... [2021-07-10 11:55:30,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:55:30" (1/1) ... [2021-07-10 11:55:30,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 11:55:30,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 11:55:30,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 11:55:30,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 11:55:30,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:55:30" (1/1) ... [2021-07-10 11:55:30,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:55:30" (1/1) ... [2021-07-10 11:55:30,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:55:30" (1/1) ... [2021-07-10 11:55:30,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:55:30" (1/1) ... [2021-07-10 11:55:30,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:55:30" (1/1) ... [2021-07-10 11:55:30,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:55:30" (1/1) ... [2021-07-10 11:55:30,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:55:30" (1/1) ... [2021-07-10 11:55:30,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 11:55:30,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 11:55:30,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 11:55:30,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 11:55:30,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:55:30" (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 [2021-07-10 11:55:30,876 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 11:55:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 11:55:30,877 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 11:55:30,877 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 11:55:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 11:55:30,877 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 11:55:30,877 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 11:55:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 11:55:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 11:55:30,878 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 11:55:31,145 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 11:55:31,145 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-10 11:55:31,147 INFO L202 PluginConnector]: Adding new model dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 11:55:31 BoogieIcfgContainer [2021-07-10 11:55:31,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 11:55:31,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 11:55:31,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 11:55:31,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 11:55:31,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:55:30" (1/2) ... [2021-07-10 11:55:31,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17719256 and model type dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 11:55:31, skipping insertion in model container [2021-07-10 11:55:31,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 11:55:31" (2/2) ... [2021-07-10 11:55:31,152 INFO L111 eAbstractionObserver]: Analyzing ICFG dec-subseq.wvr.bpl [2021-07-10 11:55:31,170 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 11:55:31,170 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 11:55:31,170 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 11:55:31,171 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 11:55:31,231 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-10 11:55:31,255 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-10 11:55:31,328 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 11:55:31,328 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 11:55:31,328 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 11:55:31,328 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 11:55:31,328 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 11:55:31,328 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 11:55:31,329 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 11:55:31,329 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 11:55:31,503 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:55:31,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:55:31,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1909327028, now seen corresponding path program 1 times [2021-07-10 11:55:31,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:55:31,525 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495374169] [2021-07-10 11:55:31,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:55:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:55:31,663 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 11:55:31,664 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:55:31,664 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495374169] [2021-07-10 11:55:31,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495374169] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 11:55:31,665 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 11:55:31,665 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-10 11:55:31,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576581952] [2021-07-10 11:55:31,669 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 11:55:31,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:55:31,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 11:55:31,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 11:55:31,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:55:31,679 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:55:31,680 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-07-10 11:55:31,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:55:31,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 11:55:31,712 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 11:55:31,713 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:55:31,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:55:31,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1708433124, now seen corresponding path program 2 times [2021-07-10 11:55:31,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:55:31,714 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982656378] [2021-07-10 11:55:31,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:55:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:55:31,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:55:31,857 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:55:31,857 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982656378] [2021-07-10 11:55:31,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982656378] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:55:31,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455535757] [2021-07-10 11:55:31,858 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 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 [2021-07-10 11:55:31,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 11:55:31,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:55:31,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-10 11:55:31,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:55:32,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 9 [2021-07-10 11:55:32,061 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 11:55:32,066 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 11:55:32,068 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 11:55:32,068 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:7 [2021-07-10 11:55:32,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 7 [2021-07-10 11:55:32,120 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 11:55:32,124 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 11:55:32,125 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 11:55:32,125 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2021-07-10 11:55:32,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:55:32,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455535757] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:55:32,185 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:55:32,186 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 11 [2021-07-10 11:55:32,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353199293] [2021-07-10 11:55:32,189 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-10 11:55:32,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:55:32,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-10 11:55:32,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-07-10 11:55:32,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:55:32,190 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:55:32,191 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 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) [2021-07-10 11:55:32,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 11:55:32,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:55:32,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 11:55:32,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 11:55:32,574 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:55:32,575 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:55:32,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:55:32,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1305050359, now seen corresponding path program 3 times [2021-07-10 11:55:32,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:55:32,576 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049089276] [2021-07-10 11:55:32,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:55:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:55:32,904 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:55:32,904 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:55:32,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049089276] [2021-07-10 11:55:32,905 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049089276] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:55:32,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805932880] [2021-07-10 11:55:32,905 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 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 [2021-07-10 11:55:32,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-10 11:55:32,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:55:32,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 22 conjunts are in the unsatisfiable core [2021-07-10 11:55:32,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:55:33,221 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 11:55:33,221 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 27 [2021-07-10 11:55:33,239 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 11:55:33,245 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 11:55:33,249 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 11:55:33,249 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:16 [2021-07-10 11:55:33,508 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 11:55:33,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 38 [2021-07-10 11:55:33,543 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-10 11:55:33,556 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 11:55:33,564 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 11:55:33,565 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:21 [2021-07-10 11:55:33,661 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:55:33,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805932880] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:55:33,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:55:33,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 27 [2021-07-10 11:55:33,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761630706] [2021-07-10 11:55:33,665 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-10 11:55:33,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:55:33,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-10 11:55:33,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=624, Unknown=0, NotChecked=0, Total=756 [2021-07-10 11:55:33,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:55:33,670 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:55:33,670 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.0714285714285716) internal successors, (58), 27 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:55:33,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 11:55:33,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 11:55:33,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:55:34,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 11:55:34,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 11:55:34,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 11:55:34,949 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:55:34,949 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:55:34,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:55:34,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1376816683, now seen corresponding path program 1 times [2021-07-10 11:55:34,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:55:34,950 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804614461] [2021-07-10 11:55:34,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:55:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:55:35,028 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 25 proven. 26 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-10 11:55:35,029 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:55:35,029 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804614461] [2021-07-10 11:55:35,029 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804614461] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:55:35,029 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810008241] [2021-07-10 11:55:35,029 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 [2021-07-10 11:55:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:55:35,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-10 11:55:35,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:55:35,173 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 37 proven. 14 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-10 11:55:35,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810008241] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:55:35,174 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:55:35,174 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-07-10 11:55:35,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337403479] [2021-07-10 11:55:35,175 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-10 11:55:35,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:55:35,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-10 11:55:35,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-07-10 11:55:35,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:55:35,176 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:55:35,176 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:55:35,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 11:55:35,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 11:55:35,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 11:55:35,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:55:35,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 11:55:35,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 11:55:35,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 11:55:35,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 11:55:35,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:55:35,461 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:55:35,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:55:35,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1362501910, now seen corresponding path program 2 times [2021-07-10 11:55:35,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:55:35,462 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331043601] [2021-07-10 11:55:35,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:55:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:55:36,433 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-10 11:55:36,434 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:55:36,434 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331043601] [2021-07-10 11:55:36,434 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331043601] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:55:36,434 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301729889] [2021-07-10 11:55:36,434 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 [2021-07-10 11:55:36,486 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 11:55:36,486 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:55:36,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 72 conjunts are in the unsatisfiable core [2021-07-10 11:55:36,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:55:39,071 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 11:55:39,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 90 treesize of output 178 [2021-07-10 11:55:39,098 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 11:55:39,326 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 94 [2021-07-10 11:55:39,327 INFO L628 ElimStorePlain]: treesize reduction 230, result has 56.4 percent of original size [2021-07-10 11:55:39,409 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 11:55:39,409 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:108, output treesize:74 [2021-07-10 11:55:40,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:55:40,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:55:40,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:55:40,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:55:40,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:55:40,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:55:40,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:55:40,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:55:40,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:55:40,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:55:40,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:55:40,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:55:40,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:55:40,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:55:40,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:55:40,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:55:40,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:55:40,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:55:40,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:55:40,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:55:40,119 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 11:55:40,145 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 11:55:40,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 66 treesize of output 80 [2021-07-10 11:55:40,186 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-10 11:55:40,201 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 11:55:40,212 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 11:55:40,212 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:85, output treesize:17 [2021-07-10 11:55:40,320 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 13 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:55:40,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301729889] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:55:40,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:55:40,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 39] total 66 [2021-07-10 11:55:40,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044961189] [2021-07-10 11:55:40,322 INFO L462 AbstractCegarLoop]: Interpolant automaton has 67 states [2021-07-10 11:55:40,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:55:40,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-07-10 11:55:40,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=477, Invalid=3945, Unknown=0, NotChecked=0, Total=4422 [2021-07-10 11:55:40,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:55:40,328 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:55:40,328 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 67 states, 67 states have (on average 1.835820895522388) internal successors, (123), 66 states have internal predecessors, (123), 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) [2021-07-10 11:55:40,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 11:55:40,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 11:55:40,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 11:55:40,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 11:55:40,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:55:41,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 11:55:41,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 11:55:41,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 11:55:41,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 11:55:41,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-10 11:55:41,844 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-07-10 11:55:41,845 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:55:41,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:55:41,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1217069542, now seen corresponding path program 3 times [2021-07-10 11:55:41,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:55:41,859 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923979830] [2021-07-10 11:55:41,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:55:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:55:41,974 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-07-10 11:55:41,974 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:55:41,974 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923979830] [2021-07-10 11:55:41,974 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923979830] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:55:41,974 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972221796] [2021-07-10 11:55:41,974 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 [2021-07-10 11:55:42,024 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-07-10 11:55:42,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:55:42,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-10 11:55:42,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:55:42,155 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 105 proven. 66 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-07-10 11:55:42,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972221796] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:55:42,156 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:55:42,156 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-07-10 11:55:42,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214087068] [2021-07-10 11:55:42,157 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-10 11:55:42,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:55:42,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-10 11:55:42,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-07-10 11:55:42,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:55:42,158 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:55:42,158 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:55:42,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 11:55:42,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 11:55:42,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 11:55:42,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 11:55:42,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-10 11:55:42,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:55:42,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 11:55:42,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 11:55:42,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 11:55:42,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 11:55:42,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-10 11:55:42,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 11:55:42,425 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:55:42,426 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:55:42,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:55:42,426 INFO L82 PathProgramCache]: Analyzing trace with hash -323705886, now seen corresponding path program 4 times [2021-07-10 11:55:42,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:55:42,426 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895185795] [2021-07-10 11:55:42,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:55:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:55:43,618 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 277 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-07-10 11:55:43,619 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:55:43,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895185795] [2021-07-10 11:55:43,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895185795] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:55:43,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710738355] [2021-07-10 11:55:43,619 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 [2021-07-10 11:55:43,706 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 11:55:43,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:55:43,708 WARN L261 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 95 conjunts are in the unsatisfiable core [2021-07-10 11:55:43,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:56:01,352 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-07-10 11:56:18,530 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-07-10 11:56:18,749 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-07-10 11:56:18,749 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 11:56:18,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 122 treesize of output 302 [2021-07-10 11:56:18,824 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 11:56:19,389 WARN L205 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 168 [2021-07-10 11:56:19,390 INFO L628 ElimStorePlain]: treesize reduction 347, result has 63.2 percent of original size [2021-07-10 11:56:19,637 INFO L550 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-10 11:56:19,637 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 10 variables, input treesize:140, output treesize:166 [2021-07-10 11:56:21,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,928 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 11:56:21,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,931 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 11:56:21,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 11:56:21,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 28 disjoint index pairs (out of 45 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 28 [2021-07-10 11:56:21,939 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 11:56:21,944 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 11:56:21,945 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 11:56:21,945 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:101, output treesize:5 [2021-07-10 11:56:21,956 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 18 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:56:21,957 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710738355] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:56:21,957 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:56:21,957 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 50] total 85 [2021-07-10 11:56:21,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600715429] [2021-07-10 11:56:21,958 INFO L462 AbstractCegarLoop]: Interpolant automaton has 86 states [2021-07-10 11:56:21,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:56:21,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2021-07-10 11:56:21,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=589, Invalid=6719, Unknown=2, NotChecked=0, Total=7310 [2021-07-10 11:56:21,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:56:21,961 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:56:21,961 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 86 states, 86 states have (on average 1.755813953488372) internal successors, (151), 85 states have internal predecessors, (151), 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) [2021-07-10 11:56:21,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 11:56:21,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 11:56:21,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 11:56:21,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 11:56:21,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-10 11:56:21,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 11:56:21,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:56:23,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 11:56:23,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 11:56:23,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 11:56:23,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 11:56:23,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-10 11:56:23,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 11:56:23,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 11:56:24,060 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:56:24,060 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:56:24,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:56:24,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1728114866, now seen corresponding path program 5 times [2021-07-10 11:56:24,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:56:24,061 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753251211] [2021-07-10 11:56:24,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:56:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:56:24,142 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 150 proven. 149 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-07-10 11:56:24,142 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:56:24,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753251211] [2021-07-10 11:56:24,143 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753251211] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:56:24,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750095366] [2021-07-10 11:56:24,144 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 [2021-07-10 11:56:24,210 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-07-10 11:56:24,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:56:24,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-10 11:56:24,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:56:24,372 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 177 proven. 122 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-07-10 11:56:24,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750095366] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:56:24,373 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:56:24,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-07-10 11:56:24,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590421008] [2021-07-10 11:56:24,374 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-10 11:56:24,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:56:24,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-10 11:56:24,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2021-07-10 11:56:24,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:56:24,376 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:56:24,376 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:56:24,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 11:56:24,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 11:56:24,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 11:56:24,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 11:56:24,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-10 11:56:24,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 11:56:24,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 11:56:24,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:56:24,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 11:56:24,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 11:56:24,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 11:56:24,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 11:56:24,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-10 11:56:24,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 11:56:24,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 11:56:24,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 11:56:24,662 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable235 [2021-07-10 11:56:24,662 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:56:24,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:56:24,663 INFO L82 PathProgramCache]: Analyzing trace with hash 827679906, now seen corresponding path program 6 times [2021-07-10 11:56:24,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:56:24,663 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590782867] [2021-07-10 11:56:24,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:56:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:56:26,312 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-07-10 11:56:26,312 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:56:26,312 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590782867] [2021-07-10 11:56:26,313 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590782867] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:56:26,313 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162973139] [2021-07-10 11:56:26,313 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 [2021-07-10 11:56:26,395 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-07-10 11:56:26,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:56:26,397 WARN L261 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 118 conjunts are in the unsatisfiable core [2021-07-10 11:56:26,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:56:30,676 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2021-07-10 11:58:27,523 WARN L205 SmtUtils]: Spent 11.69 s on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-07-10 12:00:10,974 WARN L205 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-07-10 12:03:39,240 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-07-10 12:03:39,241 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-07-10 12:03:39,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:03:39,442 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 [2021-07-10 12:03:39,445 INFO L168 Benchmark]: Toolchain (without parser) took 488683.60 ms. Allocated memory was 187.7 MB in the beginning and 449.8 MB in the end (delta: 262.1 MB). Free memory was 167.6 MB in the beginning and 265.8 MB in the end (delta: -98.2 MB). Peak memory consumption was 165.2 MB. Max. memory is 8.0 GB. [2021-07-10 12:03:39,446 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 187.7 MB. Free memory is still 168.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-10 12:03:39,446 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.66 ms. Allocated memory is still 187.7 MB. Free memory was 167.5 MB in the beginning and 166.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-10 12:03:39,446 INFO L168 Benchmark]: Boogie Preprocessor took 19.07 ms. Allocated memory is still 187.7 MB. Free memory was 166.1 MB in the beginning and 165.1 MB in the end (delta: 998.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-10 12:03:39,446 INFO L168 Benchmark]: RCFGBuilder took 336.24 ms. Allocated memory is still 187.7 MB. Free memory was 165.0 MB in the beginning and 151.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-10 12:03:39,446 INFO L168 Benchmark]: TraceAbstraction took 488297.15 ms. Allocated memory was 187.7 MB in the beginning and 449.8 MB in the end (delta: 262.1 MB). Free memory was 151.4 MB in the beginning and 265.8 MB in the end (delta: -114.4 MB). Peak memory consumption was 149.4 MB. Max. memory is 8.0 GB. [2021-07-10 12:03:39,446 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 187.7 MB. Free memory is still 168.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 25.66 ms. Allocated memory is still 187.7 MB. Free memory was 167.5 MB in the beginning and 166.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 19.07 ms. Allocated memory is still 187.7 MB. Free memory was 166.1 MB in the beginning and 165.1 MB in the end (delta: 998.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 336.24 ms. Allocated memory is still 187.7 MB. Free memory was 165.0 MB in the beginning and 151.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 488297.15 ms. Allocated memory was 187.7 MB in the beginning and 449.8 MB in the end (delta: 262.1 MB). Free memory was 151.4 MB in the beginning and 265.8 MB in the end (delta: -114.4 MB). Peak memory consumption was 149.4 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...