/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/poker-hand-symm.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-b7a4f01caba76767183cf06280be652b0b124764-b7a4f01 [2021-06-07 15:06:13,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-07 15:06:13,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-07 15:06:13,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-07 15:06:13,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-07 15:06:13,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-07 15:06:13,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-07 15:06:13,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-07 15:06:13,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-07 15:06:13,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-07 15:06:13,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-07 15:06:13,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-07 15:06:13,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-07 15:06:13,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-07 15:06:13,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-07 15:06:13,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-07 15:06:13,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-07 15:06:13,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-07 15:06:13,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-07 15:06:13,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-07 15:06:13,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-07 15:06:13,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-07 15:06:13,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-07 15:06:13,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-07 15:06:13,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-07 15:06:13,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-07 15:06:13,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-07 15:06:13,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-07 15:06:13,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-07 15:06:13,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-07 15:06:13,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-07 15:06:13,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-07 15:06:13,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-07 15:06:13,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-07 15:06:13,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-07 15:06:13,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-07 15:06:13,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-07 15:06:13,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-07 15:06:13,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-07 15:06:13,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-07 15:06:13,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-07 15:06:13,915 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Lockstep.epf [2021-06-07 15:06:13,948 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-07 15:06:13,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-07 15:06:13,948 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-07 15:06:13,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-07 15:06:13,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-07 15:06:13,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-07 15:06:13,951 INFO L138 SettingsManager]: * Use SBE=true [2021-06-07 15:06:13,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-07 15:06:13,951 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-07 15:06:13,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-07 15:06:13,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-07 15:06:13,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-07 15:06:13,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-07 15:06:13,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-07 15:06:13,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-07 15:06:13,953 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-07 15:06:13,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-07 15:06:13,953 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-07 15:06:13,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-07 15:06:13,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-07 15:06:13,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-07 15:06:13,953 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-07 15:06:13,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-07 15:06:13,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 15:06:13,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-07 15:06:13,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-07 15:06:13,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-07 15:06:13,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-07 15:06:13,954 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-07 15:06:13,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-07 15:06:13,954 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-07 15:06:13,955 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-07 15:06:13,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-07 15:06:13,955 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-07 15:06:13,955 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-07 15:06:14,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-07 15:06:14,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-07 15:06:14,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-07 15:06:14,300 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-07 15:06:14,301 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-07 15:06:14,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/poker-hand-symm.wvr.bpl [2021-06-07 15:06:14,302 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/poker-hand-symm.wvr.bpl' [2021-06-07 15:06:14,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-07 15:06:14,353 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-07 15:06:14,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-07 15:06:14,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-07 15:06:14,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-07 15:06:14,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:06:14" (1/1) ... [2021-06-07 15:06:14,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:06:14" (1/1) ... [2021-06-07 15:06:14,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-07 15:06:14,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-07 15:06:14,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-07 15:06:14,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-07 15:06:14,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:06:14" (1/1) ... [2021-06-07 15:06:14,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:06:14" (1/1) ... [2021-06-07 15:06:14,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:06:14" (1/1) ... [2021-06-07 15:06:14,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:06:14" (1/1) ... [2021-06-07 15:06:14,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:06:14" (1/1) ... [2021-06-07 15:06:14,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:06:14" (1/1) ... [2021-06-07 15:06:14,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:06:14" (1/1) ... [2021-06-07 15:06:14,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-07 15:06:14,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-07 15:06:14,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-07 15:06:14,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-07 15:06:14,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:06:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 15:06:14,486 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-07 15:06:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-07 15:06:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-07 15:06:14,487 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-07 15:06:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-07 15:06:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-07 15:06:14,487 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-07 15:06:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-07 15:06:14,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-07 15:06:14,490 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-07 15:06:15,050 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-07 15:06:15,050 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-07 15:06:15,052 INFO L202 PluginConnector]: Adding new model poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 03:06:15 BoogieIcfgContainer [2021-06-07 15:06:15,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-07 15:06:15,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-07 15:06:15,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-07 15:06:15,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-07 15:06:15,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:06:14" (1/2) ... [2021-06-07 15:06:15,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2acfad98 and model type poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.06 03:06:15, skipping insertion in model container [2021-06-07 15:06:15,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 03:06:15" (2/2) ... [2021-06-07 15:06:15,058 INFO L111 eAbstractionObserver]: Analyzing ICFG poker-hand-symm.wvr.bpl [2021-06-07 15:06:15,064 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-07 15:06:15,064 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-07 15:06:15,064 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-07 15:06:15,065 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-07 15:06:15,086 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-07 15:06:15,104 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-07 15:06:15,145 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 15:06:15,146 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 15:06:15,146 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 15:06:15,146 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 15:06:15,146 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 15:06:15,146 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 15:06:15,146 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 15:06:15,146 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-07 15:06:15,194 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 15:06:15,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 15:06:15,202 INFO L82 PathProgramCache]: Analyzing trace with hash -131607353, now seen corresponding path program 1 times [2021-06-07 15:06:15,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 15:06:15,212 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315915158] [2021-06-07 15:06:15,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 15:06:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 15:06:15,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 15:06:15,362 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 15:06:15,363 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315915158] [2021-06-07 15:06:15,363 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315915158] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 15:06:15,363 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 15:06:15,363 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-07 15:06:15,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905053732] [2021-06-07 15:06:15,367 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-07 15:06:15,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 15:06:15,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-07 15:06:15,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-07 15:06:15,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 15:06:15,383 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 15:06:15,385 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 15:06:15,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 15:06:15,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 15:06:15,404 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-07 15:06:15,404 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 15:06:15,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 15:06:15,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1780102210, now seen corresponding path program 1 times [2021-06-07 15:06:15,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 15:06:15,407 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966338448] [2021-06-07 15:06:15,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 15:06:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 15:06:15,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-07 15:06:15,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 15:06:15,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966338448] [2021-06-07 15:06:15,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966338448] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 15:06:15,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 15:06:15,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-07 15:06:15,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479997315] [2021-06-07 15:06:15,472 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-07 15:06:15,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 15:06:15,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-07 15:06:15,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-07 15:06:15,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 15:06:15,475 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 15:06:15,476 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 15:06:15,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 15:06:15,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 15:06:15,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 15:06:15,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 15:06:15,499 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-07 15:06:15,499 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 15:06:15,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 15:06:15,500 INFO L82 PathProgramCache]: Analyzing trace with hash 458448065, now seen corresponding path program 1 times [2021-06-07 15:06:15,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 15:06:15,500 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365380603] [2021-06-07 15:06:15,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 15:06:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 15:06:15,901 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2021-06-07 15:06:16,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 15:06:16,059 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 15:06:16,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365380603] [2021-06-07 15:06:16,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365380603] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 15:06:16,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047972933] [2021-06-07 15:06:16,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 15:06:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 15:06:16,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 21 conjunts are in the unsatisfiable core [2021-06-07 15:06:16,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 15:06:16,556 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2021-06-07 15:06:56,070 WARN L205 SmtUtils]: Spent 39.09 s on a formula simplification. DAG size of input: 115 DAG size of output: 118 [2021-06-07 15:06:56,557 WARN L205 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2021-06-07 15:06:56,710 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 49 [2021-06-07 15:06:57,240 WARN L205 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 96 [2021-06-07 15:06:57,849 WARN L205 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2021-06-07 15:06:58,082 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown