/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-NewStatesSleep-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/incr-decr13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8b99979fc9bd30b823d307a67cb055caa4790482-8b99979 [2021-06-30 16:32:42,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-30 16:32:42,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-30 16:32:42,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-30 16:32:42,266 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-NewStatesSleep-NoLbe-Random7777.epf [2021-06-30 16:32:42,312 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-30 16:32:42,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-30 16:32:42,312 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-30 16:32:42,313 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-30 16:32:42,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-30 16:32:42,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-30 16:32:42,314 INFO L138 SettingsManager]: * Use SBE=true [2021-06-30 16:32:42,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-30 16:32:42,314 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-30 16:32:42,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-30 16:32:42,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-30 16:32:42,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-30 16:32:42,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-30 16:32:42,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-30 16:32:42,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-30 16:32:42,315 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-30 16:32:42,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-30 16:32:42,316 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-30 16:32:42,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-30 16:32:42,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-30 16:32:42,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-30 16:32:42,316 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-30 16:32:42,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-30 16:32:42,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-30 16:32:42,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-30 16:32:42,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-30 16:32:42,317 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-30 16:32:42,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-30 16:32:42,317 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-30 16:32:42,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-30 16:32:42,318 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-30 16:32:42,318 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-30 16:32:42,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-30 16:32:42,318 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-30 16:32:42,318 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-30 16:32:42,318 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-30 16:32:42,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-30 16:32:42,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-30 16:32:42,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-30 16:32:42,637 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-30 16:32:42,637 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-30 16:32:42,638 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/incr-decr13.bpl [2021-06-30 16:32:42,638 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/incr-decr13.bpl' [2021-06-30 16:32:42,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-30 16:32:42,665 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-30 16:32:42,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-30 16:32:42,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-30 16:32:42,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-30 16:32:42,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "incr-decr13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:42" (1/1) ... [2021-06-30 16:32:42,688 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "incr-decr13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:42" (1/1) ... [2021-06-30 16:32:42,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-30 16:32:42,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-30 16:32:42,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-30 16:32:42,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-30 16:32:42,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "incr-decr13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:42" (1/1) ... [2021-06-30 16:32:42,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "incr-decr13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:42" (1/1) ... [2021-06-30 16:32:42,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "incr-decr13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:42" (1/1) ... [2021-06-30 16:32:42,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "incr-decr13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:42" (1/1) ... [2021-06-30 16:32:42,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "incr-decr13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:42" (1/1) ... [2021-06-30 16:32:42,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "incr-decr13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:42" (1/1) ... [2021-06-30 16:32:42,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "incr-decr13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:42" (1/1) ... [2021-06-30 16:32:42,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-30 16:32:42,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-30 16:32:42,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-30 16:32:42,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-30 16:32:42,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "incr-decr13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:42" (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 [2021-06-30 16:32:42,810 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-30 16:32:42,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-30 16:32:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-30 16:32:42,811 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread given in one single declaration [2021-06-30 16:32:42,811 INFO L130 BoogieDeclarations]: Found specification of procedure Thread [2021-06-30 16:32:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread [2021-06-30 16:32:42,812 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-30 16:32:42,941 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-30 16:32:42,942 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-06-30 16:32:42,943 INFO L202 PluginConnector]: Adding new model incr-decr13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 04:32:42 BoogieIcfgContainer [2021-06-30 16:32:42,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-30 16:32:42,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-30 16:32:42,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-30 16:32:42,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-30 16:32:42,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "incr-decr13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 04:32:42" (1/2) ... [2021-06-30 16:32:42,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16df40bf and model type incr-decr13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.06 04:32:42, skipping insertion in model container [2021-06-30 16:32:42,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "incr-decr13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 04:32:42" (2/2) ... [2021-06-30 16:32:42,950 INFO L111 eAbstractionObserver]: Analyzing ICFG incr-decr13.bpl [2021-06-30 16:32:42,956 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-30 16:32:42,957 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-30 16:32:42,958 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-30 16:32:42,959 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-30 16:32:43,138 INFO L149 ThreadInstanceAdder]: Constructed 13 joinOtherThreadTransitions. [2021-06-30 16:32:43,174 INFO L255 AbstractCegarLoop]: Starting to check reachability of 14 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 [2021-06-30 16:32:43,302 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-30 16:32:43,302 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-30 16:32:43,302 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-30 16:32:43,302 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-30 16:32:43,302 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-30 16:32:43,302 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-30 16:32:43,302 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-30 16:32:43,303 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-30 16:33:07,851 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-06-30 16:33:07,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 16:33:07,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1748298098, now seen corresponding path program 1 times [2021-06-30 16:33:07,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 16:33:07,866 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786233423] [2021-06-30 16:33:07,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 16:33:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 16:33:08,161 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-30 16:33:08,162 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 16:33:08,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786233423] [2021-06-30 16:33:08,163 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786233423] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 16:33:08,163 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140215803] [2021-06-30 16:33:08,163 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 [2021-06-30 16:33:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 16:33:08,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-30 16:33:08,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 16:33:08,519 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-30 16:33:08,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140215803] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 16:33:08,520 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 16:33:08,520 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-06-30 16:33:08,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819750827] [2021-06-30 16:33:08,527 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 16:33:08,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 16:33:08,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 16:33:08,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 16:33:08,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-30 16:33:08,671 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-30 16:33:08,690 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2021-06-30 16:33:08,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-30 16:33:28,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 16:33:28,321 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-30 16:33:28,321 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-06-30 16:33:28,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 16:33:28,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1523082368, now seen corresponding path program 1 times [2021-06-30 16:33:28,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 16:33:28,322 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348242391] [2021-06-30 16:33:28,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 16:33:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 16:33:28,431 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 16:33:28,431 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 16:33:28,431 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348242391] [2021-06-30 16:33:28,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348242391] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 16:33:28,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278130807] [2021-06-30 16:33:28,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 16:33:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 16:33:28,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 31 conjunts are in the unsatisfiable core [2021-06-30 16:33:28,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 16:33:28,846 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2021-06-30 16:33:28,891 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 16:33:28,891 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278130807] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 16:33:28,892 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 16:33:28,892 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-06-30 16:33:28,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33793663] [2021-06-30 16:33:28,895 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-30 16:33:28,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 16:33:28,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-30 16:33:28,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 16:33:28,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-30 16:33:28,896 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-30 16:33:28,897 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2021-06-30 16:33:28,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-30 16:33:28,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-30 16:33:52,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 16:33:52,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-30 16:33:52,977 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 16:33:52,978 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-06-30 16:33:52,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 16:33:52,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1943378016, now seen corresponding path program 1 times [2021-06-30 16:33:52,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 16:33:52,979 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406226749] [2021-06-30 16:33:52,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 16:33:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 16:33:53,299 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-30 16:33:53,299 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 16:33:53,299 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406226749] [2021-06-30 16:33:53,299 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406226749] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 16:33:53,299 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777181589] [2021-06-30 16:33:53,299 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 [2021-06-30 16:33:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 16:33:53,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 43 conjunts are in the unsatisfiable core [2021-06-30 16:33:53,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 16:33:53,739 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-30 16:33:53,739 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777181589] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 16:33:53,739 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 16:33:53,739 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-30 16:33:53,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676184871] [2021-06-30 16:33:53,741 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 16:33:53,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 16:33:53,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 16:33:53,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 16:33:53,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-30 16:33:53,744 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-30 16:33:53,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 16:33:53,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-30 16:33:53,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-30 16:33:53,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.