/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-SemanticLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-13 01:18:43,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-13 01:18:43,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-13 01:18:43,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-13 01:18:43,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-13 01:18:43,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-13 01:18:43,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-13 01:18:43,968 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-Sleep-SemanticLbe-Delay.epf [2021-03-13 01:18:44,007 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-13 01:18:44,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-13 01:18:44,008 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-13 01:18:44,008 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-13 01:18:44,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-13 01:18:44,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-13 01:18:44,010 INFO L138 SettingsManager]: * Use SBE=true [2021-03-13 01:18:44,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-13 01:18:44,013 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-13 01:18:44,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-13 01:18:44,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-13 01:18:44,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-13 01:18:44,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-13 01:18:44,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-13 01:18:44,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-13 01:18:44,014 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-13 01:18:44,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-13 01:18:44,014 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-13 01:18:44,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-13 01:18:44,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-13 01:18:44,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-13 01:18:44,015 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-13 01:18:44,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-13 01:18:44,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-13 01:18:44,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-13 01:18:44,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-13 01:18:44,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-13 01:18:44,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-13 01:18:44,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-13 01:18:44,016 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-13 01:18:44,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-13 01:18:44,016 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-03-13 01:18:44,018 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-13 01:18:44,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-13 01:18:44,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-13 01:18:44,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-13 01:18:44,507 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-13 01:18:44,524 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-13 01:18:44,525 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-4.wvr.bpl [2021-03-13 01:18:44,525 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-4.wvr.bpl' [2021-03-13 01:18:44,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-13 01:18:44,566 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-13 01:18:44,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-13 01:18:44,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-13 01:18:44,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-13 01:18:44,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 01:18:44" (1/1) ... [2021-03-13 01:18:44,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 01:18:44" (1/1) ... [2021-03-13 01:18:44,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-13 01:18:44,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-13 01:18:44,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-13 01:18:44,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-13 01:18:44,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 01:18:44" (1/1) ... [2021-03-13 01:18:44,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 01:18:44" (1/1) ... [2021-03-13 01:18:44,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 01:18:44" (1/1) ... [2021-03-13 01:18:44,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 01:18:44" (1/1) ... [2021-03-13 01:18:44,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 01:18:44" (1/1) ... [2021-03-13 01:18:44,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 01:18:44" (1/1) ... [2021-03-13 01:18:44,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 01:18:44" (1/1) ... [2021-03-13 01:18:44,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-13 01:18:44,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-13 01:18:44,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-13 01:18:44,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-13 01:18:44,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 01:18:44" (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 [2021-03-13 01:18:44,777 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-13 01:18:44,777 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-13 01:18:44,777 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-13 01:18:44,778 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-13 01:18:44,778 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-13 01:18:44,778 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-13 01:18:44,778 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-13 01:18:44,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-13 01:18:44,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-13 01:18:44,778 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-13 01:18:44,778 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-13 01:18:44,779 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-13 01:18:44,780 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-13 01:18:44,992 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-13 01:18:44,992 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-13 01:18:44,993 INFO L202 PluginConnector]: Adding new model misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.03 01:18:44 BoogieIcfgContainer [2021-03-13 01:18:44,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-13 01:18:44,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-13 01:18:44,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-13 01:18:45,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-13 01:18:45,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 01:18:44" (1/2) ... [2021-03-13 01:18:45,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f22625d and model type misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 01:18:45, skipping insertion in model container [2021-03-13 01:18:45,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.03 01:18:44" (2/2) ... [2021-03-13 01:18:45,017 INFO L111 eAbstractionObserver]: Analyzing ICFG misc-4.wvr.bpl [2021-03-13 01:18:45,021 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-13 01:18:45,021 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-13 01:18:45,024 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-13 01:18:45,025 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-13 01:18:45,110 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-13 01:18:45,124 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 01:18:45,202 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 01:18:45,205 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 01:18:45,206 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 01:18:45,207 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 01:18:45,210 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 01:18:45,215 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 01:18:45,215 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 01:18:45,215 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 01:18:45,223 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 01:18:45,224 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 31 transitions, 86 flow [2021-03-13 01:18:45,225 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 31 transitions, 86 flow [2021-03-13 01:18:45,226 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 31 transitions, 86 flow [2021-03-13 01:18:45,254 INFO L129 PetriNetUnfolder]: 4/28 cut-off events. [2021-03-13 01:18:45,254 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-13 01:18:45,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 28 events. 4/28 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 65 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2021-03-13 01:18:45,263 INFO L116 LiptonReduction]: Number of co-enabled transitions 264 [2021-03-13 01:18:46,061 INFO L131 LiptonReduction]: Checked pairs total: 479 [2021-03-13 01:18:46,061 INFO L133 LiptonReduction]: Total number of compositions: 12 [2021-03-13 01:18:46,172 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 01:18:46,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 01:18:46,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1762030949, now seen corresponding path program 1 times [2021-03-13 01:18:46,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 01:18:46,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522167032] [2021-03-13 01:18:46,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 01:18:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 01:18:46,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 01:18:46,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522167032] [2021-03-13 01:18:46,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 01:18:46,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-13 01:18:46,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575081209] [2021-03-13 01:18:46,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-13 01:18:46,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 01:18:46,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-13 01:18:46,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-13 01:18:46,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 01:18:46,289 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 01:18:46,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 01:18:46,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 01:18:46,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:46,494 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-13 01:18:46,494 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 01:18:46,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 01:18:46,494 INFO L82 PathProgramCache]: Analyzing trace with hash 605704098, now seen corresponding path program 1 times [2021-03-13 01:18:46,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 01:18:46,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693620532] [2021-03-13 01:18:46,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 01:18:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 01:18:46,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 01:18:46,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693620532] [2021-03-13 01:18:46,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 01:18:46,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-13 01:18:46,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617178444] [2021-03-13 01:18:46,532 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-13 01:18:46,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 01:18:46,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-13 01:18:46,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-13 01:18:46,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 01:18:46,537 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 01:18:46,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 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) [2021-03-13 01:18:46,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:46,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 01:18:46,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:46,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:46,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-13 01:18:46,580 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 01:18:46,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 01:18:46,580 INFO L82 PathProgramCache]: Analyzing trace with hash -744882999, now seen corresponding path program 1 times [2021-03-13 01:18:46,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 01:18:46,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180256003] [2021-03-13 01:18:46,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 01:18:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 01:18:46,617 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-13 01:18:46,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180256003] [2021-03-13 01:18:46,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 01:18:46,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-13 01:18:46,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103230785] [2021-03-13 01:18:46,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-13 01:18:46,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 01:18:46,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-13 01:18:46,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-13 01:18:46,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 01:18:46,619 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 01:18:46,619 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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) [2021-03-13 01:18:46,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:46,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:46,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 01:18:46,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:46,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:46,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:46,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-13 01:18:46,663 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 01:18:46,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 01:18:46,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1629228571, now seen corresponding path program 1 times [2021-03-13 01:18:46,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 01:18:46,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290450191] [2021-03-13 01:18:46,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 01:18:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 01:18:46,748 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 01:18:46,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290450191] [2021-03-13 01:18:46,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873921539] [2021-03-13 01:18:46,749 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 [2021-03-13 01:18:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 01:18:46,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-13 01:18:46,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 01:18:47,028 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 01:18:47,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 01:18:47,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-03-13 01:18:47,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410738752] [2021-03-13 01:18:47,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-13 01:18:47,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 01:18:47,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-13 01:18:47,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-13 01:18:47,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 01:18:47,031 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 01:18:47,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 01:18:47,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:47,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:47,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:47,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 01:18:47,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:47,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:47,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:47,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 01:18:47,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 01:18:47,581 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 01:18:47,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 01:18:47,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1515630411, now seen corresponding path program 2 times [2021-03-13 01:18:47,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 01:18:47,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061764882] [2021-03-13 01:18:47,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 01:18:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 01:18:47,684 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-03-13 01:18:47,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061764882] [2021-03-13 01:18:47,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 01:18:47,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-13 01:18:47,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205763997] [2021-03-13 01:18:47,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-13 01:18:47,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 01:18:47,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-13 01:18:47,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-13 01:18:47,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 01:18:47,686 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 01:18:47,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-03-13 01:18:47,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:47,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:47,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:47,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 01:18:47,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 01:18:47,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:47,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:47,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 01:18:47,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 01:18:47,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-13 01:18:47,833 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-13 01:18:47,847 INFO L202 PluginConnector]: Adding new model misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.03 01:18:47 BasicIcfg [2021-03-13 01:18:47,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-13 01:18:47,851 INFO L168 Benchmark]: Toolchain (without parser) took 3284.82 ms. Allocated memory is still 360.7 MB. Free memory was 341.1 MB in the beginning and 314.0 MB in the end (delta: 27.1 MB). Peak memory consumption was 29.5 MB. Max. memory is 16.0 GB. [2021-03-13 01:18:47,851 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 360.7 MB. Free memory was 342.2 MB in the beginning and 342.1 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-13 01:18:47,851 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.07 ms. Allocated memory is still 360.7 MB. Free memory was 340.6 MB in the beginning and 339.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-13 01:18:47,852 INFO L168 Benchmark]: Boogie Preprocessor took 13.00 ms. Allocated memory is still 360.7 MB. Free memory was 339.2 MB in the beginning and 338.2 MB in the end (delta: 944.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-13 01:18:47,852 INFO L168 Benchmark]: RCFGBuilder took 337.19 ms. Allocated memory is still 360.7 MB. Free memory was 338.1 MB in the beginning and 327.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-03-13 01:18:47,852 INFO L168 Benchmark]: TraceAbstraction took 2852.94 ms. Allocated memory is still 360.7 MB. Free memory was 326.8 MB in the beginning and 314.0 MB in the end (delta: 12.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.0 GB. [2021-03-13 01:18:47,856 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 0.12 ms. Allocated memory is still 360.7 MB. Free memory was 342.2 MB in the beginning and 342.1 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 55.07 ms. Allocated memory is still 360.7 MB. Free memory was 340.6 MB in the beginning and 339.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.00 ms. Allocated memory is still 360.7 MB. Free memory was 339.2 MB in the beginning and 338.2 MB in the end (delta: 944.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 337.19 ms. Allocated memory is still 360.7 MB. Free memory was 338.1 MB in the beginning and 327.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2852.94 ms. Allocated memory is still 360.7 MB. Free memory was 326.8 MB in the beginning and 314.0 MB in the end (delta: 12.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 836.1ms, 37 PlacesBefore, 29 PlacesAfterwards, 31 TransitionsBefore, 23 TransitionsAfterwards, 264 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 479 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 322, positive: 290, positive conditional: 0, positive unconditional: 290, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 200, positive: 179, positive conditional: 0, positive unconditional: 179, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 200, positive: 167, positive conditional: 0, positive unconditional: 167, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 33, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 406, positive: 111, positive conditional: 0, positive unconditional: 111, negative: 295, negative conditional: 0, negative unconditional: 295, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 322, positive: 111, positive conditional: 0, positive unconditional: 111, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 200, unknown conditional: 0, unknown unconditional: 200] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 40, Positive conditional cache size: 0, Positive unconditional cache size: 40, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2121, positive: 1517, positive conditional: 1517, positive unconditional: 0, negative: 604, negative conditional: 604, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1588, positive: 1517, positive conditional: 1517, positive unconditional: 0, negative: 71, negative conditional: 71, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1588, positive: 1244, positive conditional: 0, positive unconditional: 1244, negative: 344, negative conditional: 0, negative unconditional: 344, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 81, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 81, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 72, positive: 45, positive conditional: 39, positive unconditional: 6, negative: 27, negative conditional: 13, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 508, positive: 333, positive conditional: 230, positive unconditional: 103, negative: 175, negative conditional: 66, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1588, positive: 1177, positive conditional: 0, positive unconditional: 1177, negative: 330, negative conditional: 0, negative unconditional: 330, unknown: 81, unknown conditional: 0, unknown unconditional: 81] , Statistics on independence cache: Total cache size (in pairs): 133, Positive cache size: 106, Positive conditional cache size: 39, Positive unconditional cache size: 67, Negative cache size: 27, Negative conditional cache size: 13, Negative unconditional cache size: 14, SemanticConditionEliminator.Independence Queries: [ total: 868, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 595, negative conditional: 139, negative unconditional: 456, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 868, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 595, negative conditional: 139, negative unconditional: 456, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 72, positive: 45, positive conditional: 39, positive unconditional: 6, negative: 27, negative conditional: 13, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 508, positive: 333, positive conditional: 230, positive unconditional: 103, negative: 175, negative conditional: 66, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 868, positive: 234, positive conditional: 234, positive unconditional: 0, negative: 582, negative conditional: 126, negative unconditional: 456, unknown: 52, unknown conditional: 52, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 133, Positive cache size: 106, Positive conditional cache size: 39, Positive unconditional cache size: 67, Negative cache size: 27, Negative conditional cache size: 13, Negative unconditional cache size: 14, Eliminated conditions: 456, SemanticConditionEliminator.Independence Queries: [ total: 868, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 595, negative conditional: 139, negative unconditional: 456, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 868, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 595, negative conditional: 139, negative unconditional: 456, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 72, positive: 45, positive conditional: 39, positive unconditional: 6, negative: 27, negative conditional: 13, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 508, positive: 333, positive conditional: 230, positive unconditional: 103, negative: 175, negative conditional: 66, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 868, positive: 234, positive conditional: 234, positive unconditional: 0, negative: 582, negative conditional: 126, negative unconditional: 456, unknown: 52, unknown conditional: 52, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 133, Positive cache size: 106, Positive conditional cache size: 39, Positive unconditional cache size: 67, Negative cache size: 27, Negative conditional cache size: 13, Negative unconditional cache size: 14, Eliminated conditions: 456, SemanticConditionEliminator.Independence Queries: [ total: 868, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 595, negative conditional: 139, negative unconditional: 456, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 868, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 595, negative conditional: 139, negative unconditional: 456, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 72, positive: 45, positive conditional: 39, positive unconditional: 6, negative: 27, negative conditional: 13, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 508, positive: 333, positive conditional: 230, positive unconditional: 103, negative: 175, negative conditional: 66, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 868, positive: 234, positive conditional: 234, positive unconditional: 0, negative: 582, negative conditional: 126, negative unconditional: 456, unknown: 52, unknown conditional: 52, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 133, Positive cache size: 106, Positive conditional cache size: 39, Positive unconditional cache size: 67, Negative cache size: 27, Negative conditional cache size: 13, Negative unconditional cache size: 14, Eliminated conditions: 456, SemanticConditionEliminator.Independence Queries: [ total: 868, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 595, negative conditional: 139, negative unconditional: 456, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 868, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 595, negative conditional: 139, negative unconditional: 456, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 72, positive: 45, positive conditional: 39, positive unconditional: 6, negative: 27, negative conditional: 13, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 508, positive: 333, positive conditional: 230, positive unconditional: 103, negative: 175, negative conditional: 66, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 868, positive: 234, positive conditional: 234, positive unconditional: 0, negative: 582, negative conditional: 126, negative unconditional: 456, unknown: 52, unknown conditional: 52, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 133, Positive cache size: 106, Positive conditional cache size: 39, Positive unconditional cache size: 67, Negative cache size: 27, Negative conditional cache size: 13, Negative unconditional cache size: 14, Eliminated conditions: 456, SemanticConditionEliminator.Independence Queries: [ total: 868, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 595, negative conditional: 139, negative unconditional: 456, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 868, positive: 273, positive conditional: 273, positive unconditional: 0, negative: 595, negative conditional: 139, negative unconditional: 456, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 72, positive: 45, positive conditional: 39, positive unconditional: 6, negative: 27, negative conditional: 13, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 508, positive: 333, positive conditional: 230, positive unconditional: 103, negative: 175, negative conditional: 66, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 868, positive: 234, positive conditional: 234, positive unconditional: 0, negative: 582, negative conditional: 126, negative unconditional: 456, unknown: 52, unknown conditional: 52, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 133, Positive cache size: 106, Positive conditional cache size: 39, Positive unconditional cache size: 67, Negative cache size: 27, Negative conditional cache size: 13, Negative unconditional cache size: 14, Eliminated conditions: 456 ], Maximal queried relation: 4, Independence queries for same thread: 533 - PositiveResult [Line: 62]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2698.4ms, OverallIterations: 5, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 865.2ms, PartialOrderReductionTime: 862.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 20, 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: 35.4ms SsaConstructionTime, 86.3ms SatisfiabilityAnalysisTime, 404.9ms InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 163 SizeOfPredicates, 1 NumberOfNonLiveVariables, 60 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 54/62 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...