/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-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 07:24:37,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 07:24:37,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 07:24:37,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 07:24:37,183 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-Lockstep.epf [2021-07-14 07:24:37,221 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 07:24:37,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 07:24:37,222 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 07:24:37,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 07:24:37,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 07:24:37,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 07:24:37,225 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 07:24:37,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 07:24:37,226 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 07:24:37,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 07:24:37,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 07:24:37,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 07:24:37,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 07:24:37,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 07:24:37,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 07:24:37,227 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 07:24:37,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 07:24:37,228 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 07:24:37,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 07:24:37,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 07:24:37,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 07:24:37,228 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 07:24:37,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 07:24:37,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 07:24:37,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 07:24:37,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 07:24:37,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 07:24:37,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 07:24:37,230 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-14 07:24:37,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 07:24:37,230 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 07:24:37,230 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 07:24:37,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 07:24:37,231 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-14 07:24:37,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 07:24:37,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 07:24:37,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 07:24:37,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 07:24:37,592 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 07:24:37,594 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 07:24:37,594 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl [2021-07-14 07:24:37,595 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl' [2021-07-14 07:24:37,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 07:24:37,622 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 07:24:37,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 07:24:37,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 07:24:37,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 07:24:37,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:24:37" (1/1) ... [2021-07-14 07:24:37,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:24:37" (1/1) ... [2021-07-14 07:24:37,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 07:24:37,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 07:24:37,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 07:24:37,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 07:24:37,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:24:37" (1/1) ... [2021-07-14 07:24:37,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:24:37" (1/1) ... [2021-07-14 07:24:37,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:24:37" (1/1) ... [2021-07-14 07:24:37,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:24:37" (1/1) ... [2021-07-14 07:24:37,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:24:37" (1/1) ... [2021-07-14 07:24:37,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:24:37" (1/1) ... [2021-07-14 07:24:37,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:24:37" (1/1) ... [2021-07-14 07:24:37,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 07:24:37,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 07:24:37,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 07:24:37,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 07:24:37,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:24:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 07:24:37,737 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 07:24:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 07:24:37,737 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 07:24:37,737 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 07:24:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 07:24:37,738 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 07:24:37,738 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 07:24:37,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 07:24:37,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 07:24:37,740 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 07:24:37,906 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 07:24:37,907 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 07:24:37,908 INFO L202 PluginConnector]: Adding new model easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:24:37 BoogieIcfgContainer [2021-07-14 07:24:37,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 07:24:37,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 07:24:37,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 07:24:37,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 07:24:37,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:24:37" (1/2) ... [2021-07-14 07:24:37,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f099f2a and model type easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 07:24:37, skipping insertion in model container [2021-07-14 07:24:37,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:24:37" (2/2) ... [2021-07-14 07:24:37,916 INFO L111 eAbstractionObserver]: Analyzing ICFG easy6.wvr.bpl [2021-07-14 07:24:37,921 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 07:24:37,921 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 07:24:37,921 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 07:24:37,922 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 07:24:37,992 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-14 07:24:38,013 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 [2021-07-14 07:24:38,085 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 07:24:38,085 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 07:24:38,085 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 07:24:38,085 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 07:24:38,085 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 07:24:38,086 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 07:24:38,086 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 07:24:38,086 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 07:24:38,162 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:24:38,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:24:38,167 INFO L82 PathProgramCache]: Analyzing trace with hash -918969349, now seen corresponding path program 1 times [2021-07-14 07:24:38,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:24:38,174 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047837609] [2021-07-14 07:24:38,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:24:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:24:38,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:24:38,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:24:38,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047837609] [2021-07-14 07:24:38,297 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047837609] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 07:24:38,297 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 07:24:38,297 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 07:24:38,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805706859] [2021-07-14 07:24:38,301 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 07:24:38,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:24:38,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 07:24:38,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 07:24:38,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:24:38,315 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:24:38,317 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 07:24:38,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:24:38,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 07:24:38,334 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 07:24:38,334 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:24:38,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:24:38,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1324243667, now seen corresponding path program 2 times [2021-07-14 07:24:38,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:24:38,335 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297150604] [2021-07-14 07:24:38,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:24:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:24:38,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:24:38,468 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:24:38,468 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297150604] [2021-07-14 07:24:38,468 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297150604] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 07:24:38,468 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 07:24:38,468 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 07:24:38,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806911543] [2021-07-14 07:24:38,470 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 07:24:38,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:24:38,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 07:24:38,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 07:24:38,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:24:38,471 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:24:38,471 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 07:24:38,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 07:24:38,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:24:38,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 07:24:38,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:24:38,580 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 07:24:38,580 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:24:38,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:24:38,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1451684831, now seen corresponding path program 3 times [2021-07-14 07:24:38,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:24:38,581 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366084587] [2021-07-14 07:24:38,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:24:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:24:38,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:24:38,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:24:38,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366084587] [2021-07-14 07:24:38,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366084587] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 07:24:38,658 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 07:24:38,658 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 07:24:38,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752780185] [2021-07-14 07:24:38,659 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 07:24:38,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:24:38,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 07:24:38,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-07-14 07:24:38,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:24:38,660 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:24:38,660 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 07:24:38,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 07:24:38,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:24:38,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:24:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 07:24:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:24:38,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 07:24:38,794 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 07:24:38,794 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:24:38,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:24:38,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1556673519, now seen corresponding path program 4 times [2021-07-14 07:24:38,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:24:38,795 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999920008] [2021-07-14 07:24:38,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:24:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:24:38,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:24:38,931 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:24:38,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999920008] [2021-07-14 07:24:38,933 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999920008] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 07:24:38,933 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 07:24:38,933 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-14 07:24:38,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085798458] [2021-07-14 07:24:38,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 07:24:38,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:24:38,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 07:24:38,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-07-14 07:24:38,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:24:38,936 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:24:38,936 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 07:24:38,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 07:24:38,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:24:38,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 07:24:38,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:24:39,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 07:24:39,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:24:39,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 07:24:39,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 07:24:39,107 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-14 07:24:39,110 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:24:39,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:24:39,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1139183345, now seen corresponding path program 5 times [2021-07-14 07:24:39,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:24:39,112 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126252006] [2021-07-14 07:24:39,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:24:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:24:39,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:24:39,230 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:24:39,230 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126252006] [2021-07-14 07:24:39,230 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126252006] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 07:24:39,231 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 07:24:39,231 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 07:24:39,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791180013] [2021-07-14 07:24:39,231 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 07:24:39,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:24:39,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 07:24:39,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 07:24:39,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:24:39,233 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:24:39,233 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 07:24:39,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 07:24:39,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:24:39,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 07:24:39,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 07:24:39,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:24:39,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 07:24:39,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:24:39,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 07:24:39,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 07:24:39,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:24:39,363 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-14 07:24:39,363 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:24:39,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:24:39,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1700951619, now seen corresponding path program 6 times [2021-07-14 07:24:39,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:24:39,364 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117689606] [2021-07-14 07:24:39,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:24:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:24:39,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:24:39,376 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:24:39,376 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117689606] [2021-07-14 07:24:39,377 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117689606] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 07:24:39,377 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 07:24:39,377 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 07:24:39,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656747987] [2021-07-14 07:24:39,377 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 07:24:39,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:24:39,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 07:24:39,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 07:24:39,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:24:39,378 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:24:39,378 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 07:24:39,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 07:24:39,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:24:39,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 07:24:39,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 07:24:39,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:24:39,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:24:39,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 07:24:39,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:24:39,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 07:24:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 07:24:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:24:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 07:24:39,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-14 07:24:39,441 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:24:39,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:24:39,441 INFO L82 PathProgramCache]: Analyzing trace with hash 866579523, now seen corresponding path program 7 times [2021-07-14 07:24:39,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:24:39,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808337925] [2021-07-14 07:24:39,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:24:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:24:39,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:24:39,486 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:24:39,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808337925] [2021-07-14 07:24:39,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808337925] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 07:24:39,487 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 07:24:39,487 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 07:24:39,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275086005] [2021-07-14 07:24:39,487 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 07:24:39,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:24:39,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 07:24:39,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-07-14 07:24:39,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:24:39,488 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:24:39,488 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 07:24:39,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 07:24:39,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:24:39,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 07:24:39,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 07:24:39,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:24:39,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 07:24:39,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:24:39,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 07:24:39,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:24:39,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 07:24:39,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 07:24:39,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:24:39,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 07:24:39,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 07:24:39,647 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-14 07:24:39,654 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-14 07:24:39,656 INFO L202 PluginConnector]: Adding new model easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 07:24:39 BasicIcfg [2021-07-14 07:24:39,656 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-14 07:24:39,657 INFO L168 Benchmark]: Toolchain (without parser) took 2034.70 ms. Allocated memory is still 189.8 MB. Free memory was 169.3 MB in the beginning and 107.4 MB in the end (delta: 62.0 MB). Peak memory consumption was 62.8 MB. Max. memory is 8.0 GB. [2021-07-14 07:24:39,657 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 189.8 MB. Free memory is still 170.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 07:24:39,657 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.80 ms. Allocated memory is still 189.8 MB. Free memory was 169.2 MB in the beginning and 167.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 07:24:39,657 INFO L168 Benchmark]: Boogie Preprocessor took 14.85 ms. Allocated memory is still 189.8 MB. Free memory was 167.8 MB in the beginning and 167.0 MB in the end (delta: 834.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-14 07:24:39,658 INFO L168 Benchmark]: RCFGBuilder took 243.32 ms. Allocated memory is still 189.8 MB. Free memory was 166.9 MB in the beginning and 155.3 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-07-14 07:24:39,658 INFO L168 Benchmark]: TraceAbstraction took 1745.72 ms. Allocated memory is still 189.8 MB. Free memory was 154.9 MB in the beginning and 107.4 MB in the end (delta: 47.5 MB). Peak memory consumption was 48.1 MB. Max. memory is 8.0 GB. [2021-07-14 07:24:39,659 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 0.14 ms. Allocated memory is still 189.8 MB. Free memory is still 170.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 25.80 ms. Allocated memory is still 189.8 MB. Free memory was 169.2 MB in the beginning and 167.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.85 ms. Allocated memory is still 189.8 MB. Free memory was 167.8 MB in the beginning and 167.0 MB in the end (delta: 834.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 243.32 ms. Allocated memory is still 189.8 MB. Free memory was 166.9 MB in the beginning and 155.3 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1745.72 ms. Allocated memory is still 189.8 MB. Free memory was 154.9 MB in the beginning and 107.4 MB in the end (delta: 47.5 MB). Peak memory consumption was 48.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 594, positive: 538, positive conditional: 538, positive unconditional: 0, negative: 56, negative conditional: 56, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 594, positive: 538, positive conditional: 538, positive unconditional: 0, negative: 56, negative conditional: 56, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 594, positive: 535, positive conditional: 0, positive unconditional: 535, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 120, positive: 107, positive conditional: 0, positive unconditional: 107, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 120, positive: 106, positive conditional: 0, positive unconditional: 106, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 39, negative conditional: 26, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, positive: 6, positive conditional: 4, positive unconditional: 2, negative: 103, negative conditional: 51, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 594, positive: 428, positive conditional: 0, positive unconditional: 428, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 120, unknown conditional: 0, unknown unconditional: 120] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 109, Positive conditional cache size: 2, Positive unconditional cache size: 107, Negative cache size: 39, Negative conditional cache size: 26, Negative unconditional cache size: 13, SemanticConditionEliminator.Independence Queries: [ total: 274, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 271, negative conditional: 77, negative unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 274, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 271, negative conditional: 77, negative unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 39, negative conditional: 26, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, positive: 6, positive conditional: 4, positive unconditional: 2, negative: 103, negative conditional: 51, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 274, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 245, negative conditional: 51, negative unconditional: 194, unknown: 28, unknown conditional: 28, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 109, Positive conditional cache size: 2, Positive unconditional cache size: 107, Negative cache size: 39, Negative conditional cache size: 26, Negative unconditional cache size: 13, Eliminated conditions: 194, SemanticConditionEliminator.Independence Queries: [ total: 274, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 271, negative conditional: 77, negative unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 274, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 271, negative conditional: 77, negative unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 39, negative conditional: 26, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, positive: 6, positive conditional: 4, positive unconditional: 2, negative: 103, negative conditional: 51, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 274, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 245, negative conditional: 51, negative unconditional: 194, unknown: 28, unknown conditional: 28, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 109, Positive conditional cache size: 2, Positive unconditional cache size: 107, Negative cache size: 39, Negative conditional cache size: 26, Negative unconditional cache size: 13, Eliminated conditions: 194, SemanticConditionEliminator.Independence Queries: [ total: 274, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 271, negative conditional: 77, negative unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 274, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 271, negative conditional: 77, negative unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 39, negative conditional: 26, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, positive: 6, positive conditional: 4, positive unconditional: 2, negative: 103, negative conditional: 51, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 274, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 245, negative conditional: 51, negative unconditional: 194, unknown: 28, unknown conditional: 28, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 109, Positive conditional cache size: 2, Positive unconditional cache size: 107, Negative cache size: 39, Negative conditional cache size: 26, Negative unconditional cache size: 13, Eliminated conditions: 194, SemanticConditionEliminator.Independence Queries: [ total: 274, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 271, negative conditional: 77, negative unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 274, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 271, negative conditional: 77, negative unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 39, negative conditional: 26, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, positive: 6, positive conditional: 4, positive unconditional: 2, negative: 103, negative conditional: 51, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 274, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 245, negative conditional: 51, negative unconditional: 194, unknown: 28, unknown conditional: 28, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 109, Positive conditional cache size: 2, Positive unconditional cache size: 107, Negative cache size: 39, Negative conditional cache size: 26, Negative unconditional cache size: 13, Eliminated conditions: 194, SemanticConditionEliminator.Independence Queries: [ total: 274, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 271, negative conditional: 77, negative unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 274, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 271, negative conditional: 77, negative unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 39, negative conditional: 26, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, positive: 6, positive conditional: 4, positive unconditional: 2, negative: 103, negative conditional: 51, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 274, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 245, negative conditional: 51, negative unconditional: 194, unknown: 28, unknown conditional: 28, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 109, Positive conditional cache size: 2, Positive unconditional cache size: 107, Negative cache size: 39, Negative conditional cache size: 26, Negative unconditional cache size: 13, Eliminated conditions: 194, SemanticConditionEliminator.Independence Queries: [ total: 274, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 271, negative conditional: 77, negative unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 274, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 271, negative conditional: 77, negative unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 39, negative conditional: 26, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, positive: 6, positive conditional: 4, positive unconditional: 2, negative: 103, negative conditional: 51, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 274, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 245, negative conditional: 51, negative unconditional: 194, unknown: 28, unknown conditional: 28, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 109, Positive conditional cache size: 2, Positive unconditional cache size: 107, Negative cache size: 39, Negative conditional cache size: 26, Negative unconditional cache size: 13, Eliminated conditions: 194, SemanticConditionEliminator.Independence Queries: [ total: 274, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 271, negative conditional: 77, negative unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 274, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 271, negative conditional: 77, negative unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 39, negative conditional: 26, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, positive: 6, positive conditional: 4, positive unconditional: 2, negative: 103, negative conditional: 51, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 274, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 245, negative conditional: 51, negative unconditional: 194, unknown: 28, unknown conditional: 28, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 109, Positive conditional cache size: 2, Positive unconditional cache size: 107, Negative cache size: 39, Negative conditional cache size: 26, Negative unconditional cache size: 13, Eliminated conditions: 194 ], Maximal queried relation: 7, Independence queries for same thread: 0 - PositiveResult [Line: 60]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 60 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1625.9ms, OverallIterations: 7, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.0ms, PartialOrderReductionTime: 837.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 13.4ms SsaConstructionTime, 77.0ms SatisfiabilityAnalysisTime, 486.7ms InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 778 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...