/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-NoLbe-New_States.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-12 18:03:02,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-12 18:03:02,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-12 18:03:02,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-12 18:03:02,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-12 18:03:02,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-12 18:03:02,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-12 18:03:02,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-12 18:03:02,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-12 18:03:02,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-12 18:03:02,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-12 18:03:02,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-12 18:03:02,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-12 18:03:02,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-12 18:03:02,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-12 18:03:02,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-12 18:03:02,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-12 18:03:02,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-12 18:03:02,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-12 18:03:02,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-12 18:03:02,152 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-NoLbe-New_States.epf [2021-03-12 18:03:02,179 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-12 18:03:02,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-12 18:03:02,180 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-12 18:03:02,181 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-12 18:03:02,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-12 18:03:02,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-12 18:03:02,184 INFO L138 SettingsManager]: * Use SBE=true [2021-03-12 18:03:02,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-12 18:03:02,184 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-12 18:03:02,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-12 18:03:02,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-12 18:03:02,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-12 18:03:02,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-12 18:03:02,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-12 18:03:02,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-12 18:03:02,186 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-12 18:03:02,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-12 18:03:02,186 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-12 18:03:02,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-12 18:03:02,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-12 18:03:02,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-12 18:03:02,187 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-12 18:03:02,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-12 18:03:02,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 18:03:02,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-12 18:03:02,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-12 18:03:02,187 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-12 18:03:02,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-12 18:03:02,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-12 18:03:02,188 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-12 18:03:02,188 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-12 18:03:02,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-12 18:03:02,188 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-03-12 18:03:02,188 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-12 18:03:02,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-12 18:03:02,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-12 18:03:02,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-12 18:03:02,501 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-12 18:03:02,503 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-12 18:03:02,504 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl [2021-03-12 18:03:02,504 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl' [2021-03-12 18:03:02,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-12 18:03:02,543 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-12 18:03:02,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-12 18:03:02,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-12 18:03:02,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-12 18:03:02,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:03:02" (1/1) ... [2021-03-12 18:03:02,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:03:02" (1/1) ... [2021-03-12 18:03:02,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-12 18:03:02,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-12 18:03:02,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-12 18:03:02,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-12 18:03:02,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:03:02" (1/1) ... [2021-03-12 18:03:02,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:03:02" (1/1) ... [2021-03-12 18:03:02,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:03:02" (1/1) ... [2021-03-12 18:03:02,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:03:02" (1/1) ... [2021-03-12 18:03:02,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:03:02" (1/1) ... [2021-03-12 18:03:02,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:03:02" (1/1) ... [2021-03-12 18:03:02,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:03:02" (1/1) ... [2021-03-12 18:03:02,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-12 18:03:02,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-12 18:03:02,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-12 18:03:02,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-12 18:03:02,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:03:02" (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 [2021-03-12 18:03:02,653 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-12 18:03:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-12 18:03:02,653 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-12 18:03:02,653 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-12 18:03:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-12 18:03:02,653 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-12 18:03:02,653 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-12 18:03:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-12 18:03:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-12 18:03:02,654 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-12 18:03:02,820 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-12 18:03:02,820 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-12 18:03:02,822 INFO L202 PluginConnector]: Adding new model two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 06:03:02 BoogieIcfgContainer [2021-03-12 18:03:02,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-12 18:03:02,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-12 18:03:02,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-12 18:03:02,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-12 18:03:02,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:03:02" (1/2) ... [2021-03-12 18:03:02,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6916d1a9 and model type two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 06:03:02, skipping insertion in model container [2021-03-12 18:03:02,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 06:03:02" (2/2) ... [2021-03-12 18:03:02,828 INFO L111 eAbstractionObserver]: Analyzing ICFG two-queue.wvr.bpl [2021-03-12 18:03:02,832 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-12 18:03:02,832 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-12 18:03:02,835 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-12 18:03:02,836 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-12 18:03:02,887 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-12 18:03:02,901 INFO L253 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 [2021-03-12 18:03:02,955 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-12 18:03:02,956 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-12 18:03:02,956 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-12 18:03:02,956 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-12 18:03:02,956 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-12 18:03:02,956 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-12 18:03:02,956 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-12 18:03:02,956 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-12 18:03:03,049 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:03:03,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:03:03,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1020496956, now seen corresponding path program 1 times [2021-03-12 18:03:03,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:03:03,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998648997] [2021-03-12 18:03:03,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:03:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:03:03,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:03:03,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998648997] [2021-03-12 18:03:03,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 18:03:03,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-12 18:03:03,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891084286] [2021-03-12 18:03:03,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-12 18:03:03,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:03:03,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-12 18:03:03,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-12 18:03:03,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:03:03,258 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:03:03,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-03-12 18:03:03,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:03:03,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:03,327 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-12 18:03:03,327 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:03:03,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:03:03,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1139769537, now seen corresponding path program 1 times [2021-03-12 18:03:03,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:03:03,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560580209] [2021-03-12 18:03:03,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:03:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:03:03,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:03:03,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560580209] [2021-03-12 18:03:03,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 18:03:03,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-12 18:03:03,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914123066] [2021-03-12 18:03:03,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-12 18:03:03,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:03:03,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-12 18:03:03,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-12 18:03:03,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:03:03,380 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:03:03,380 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) [2021-03-12 18:03:03,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:03,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:03:03,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:03,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:03,436 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-12 18:03:03,436 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:03:03,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:03:03,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1703953662, now seen corresponding path program 1 times [2021-03-12 18:03:03,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:03:03,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413499689] [2021-03-12 18:03:03,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:03:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:03:03,716 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:03:03,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413499689] [2021-03-12 18:03:03,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204619303] [2021-03-12 18:03:03,716 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 [2021-03-12 18:03:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:03:03,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-12 18:03:03,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:03:03,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-03-12 18:03:04,009 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 18:03:04,014 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 18:03:04,015 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 18:03:04,016 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:11 [2021-03-12 18:03:04,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2021-03-12 18:03:04,100 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 18:03:04,104 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 18:03:04,105 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 18:03:04,105 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:9 [2021-03-12 18:03:04,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:03:04,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:03:04,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-03-12 18:03:04,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366688725] [2021-03-12 18:03:04,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-12 18:03:04,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:03:04,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-12 18:03:04,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-03-12 18:03:04,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:03:04,184 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:03:04,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.736842105263158) internal successors, (33), 18 states have internal predecessors, (33), 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) [2021-03-12 18:03:04,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:04,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:04,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:03:04,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:04,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:04,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-12 18:03:04,879 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:03:04,880 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:03:04,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:03:04,880 INFO L82 PathProgramCache]: Analyzing trace with hash 2127289093, now seen corresponding path program 2 times [2021-03-12 18:03:04,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:03:04,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908974682] [2021-03-12 18:03:04,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:03:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:03:04,918 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:03:04,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908974682] [2021-03-12 18:03:04,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667975636] [2021-03-12 18:03:04,919 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-12 18:03:04,961 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 18:03:04,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:03:04,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-12 18:03:04,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:03:05,035 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-12 18:03:05,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-12 18:03:05,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2021-03-12 18:03:05,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881952911] [2021-03-12 18:03:05,036 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-12 18:03:05,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:03:05,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-12 18:03:05,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-12 18:03:05,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:03:05,037 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:03:05,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 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) [2021-03-12 18:03:05,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:05,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:05,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-12 18:03:05,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:03:05,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:05,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-12 18:03:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:03:05,294 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:03:05,295 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:03:05,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:03:05,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1833424690, now seen corresponding path program 3 times [2021-03-12 18:03:05,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:03:05,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436410315] [2021-03-12 18:03:05,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:03:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:03:05,377 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-03-12 18:03:05,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436410315] [2021-03-12 18:03:05,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944743680] [2021-03-12 18:03:05,378 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:03:05,418 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-03-12 18:03:05,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:03:05,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 18:03:05,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:03:05,516 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-03-12 18:03:05,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-12 18:03:05,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2021-03-12 18:03:05,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630398327] [2021-03-12 18:03:05,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-12 18:03:05,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:03:05,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-12 18:03:05,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-03-12 18:03:05,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:03:05,520 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:03:05,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-03-12 18:03:05,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:05,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:05,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-12 18:03:05,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:03:05,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:03:05,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:05,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:05,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-12 18:03:05,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:03:05,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:03:05,790 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:03:05,790 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:03:05,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:03:05,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1610870810, now seen corresponding path program 4 times [2021-03-12 18:03:05,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:03:05,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528204628] [2021-03-12 18:03:05,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:03:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:03:05,862 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 47 proven. 19 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-03-12 18:03:05,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528204628] [2021-03-12 18:03:05,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509690235] [2021-03-12 18:03:05,862 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:03:05,906 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 18:03:05,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:03:05,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 18:03:05,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:03:06,019 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 45 proven. 14 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-03-12 18:03:06,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:03:06,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 6 [2021-03-12 18:03:06,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95730603] [2021-03-12 18:03:06,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 18:03:06,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:03:06,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 18:03:06,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-03-12 18:03:06,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:03:06,021 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:03:06,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-03-12 18:03:06,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:06,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:06,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-12 18:03:06,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:03:06,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:03:06,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:03:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-12 18:03:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:03:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:03:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:03:06,255 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-03-12 18:03:06,255 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:03:06,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:03:06,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1016490220, now seen corresponding path program 5 times [2021-03-12 18:03:06,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:03:06,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032682060] [2021-03-12 18:03:06,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:03:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:03:06,682 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 9 proven. 42 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-03-12 18:03:06,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032682060] [2021-03-12 18:03:06,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019566346] [2021-03-12 18:03:06,683 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:03:06,733 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-03-12 18:03:06,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:03:06,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 39 conjunts are in the unsatisfiable core [2021-03-12 18:03:06,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:03:07,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-03-12 18:03:07,023 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 18:03:07,027 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 18:03:07,028 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 18:03:07,028 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2021-03-12 18:03:07,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-03-12 18:03:07,048 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 18:03:07,054 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 18:03:07,055 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 18:03:07,055 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:9 [2021-03-12 18:03:07,152 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 11 proven. 40 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-03-12 18:03:07,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:03:07,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 26 [2021-03-12 18:03:07,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572535721] [2021-03-12 18:03:07,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-03-12 18:03:07,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:03:07,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-03-12 18:03:07,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=620, Unknown=0, NotChecked=0, Total=702 [2021-03-12 18:03:07,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:03:07,154 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:03:07,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.037037037037037) internal successors, (55), 26 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 18:03:07,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:07,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:07,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-12 18:03:07,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:03:07,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:03:07,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:03:07,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:03:08,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:08,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 18:03:08,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 18:03:08,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:03:08,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:03:08,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:03:08,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-03-12 18:03:08,323 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:03:08,331 INFO L202 PluginConnector]: Adding new model two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.03 06:03:08 BasicIcfg [2021-03-12 18:03:08,331 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-12 18:03:08,332 INFO L168 Benchmark]: Toolchain (without parser) took 5794.51 ms. Allocated memory was 255.9 MB in the beginning and 421.5 MB in the end (delta: 165.7 MB). Free memory was 236.8 MB in the beginning and 388.2 MB in the end (delta: -151.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.0 GB. [2021-03-12 18:03:08,332 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 18:03:08,332 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.87 ms. Allocated memory is still 255.9 MB. Free memory was 236.3 MB in the beginning and 234.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-12 18:03:08,332 INFO L168 Benchmark]: Boogie Preprocessor took 16.11 ms. Allocated memory is still 255.9 MB. Free memory was 234.7 MB in the beginning and 233.9 MB in the end (delta: 878.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 18:03:08,332 INFO L168 Benchmark]: RCFGBuilder took 234.29 ms. Allocated memory is still 255.9 MB. Free memory was 233.8 MB in the beginning and 233.8 MB in the end (delta: 336 B). Peak memory consumption was 17.5 MB. Max. memory is 16.0 GB. [2021-03-12 18:03:08,332 INFO L168 Benchmark]: TraceAbstraction took 5508.05 ms. Allocated memory was 255.9 MB in the beginning and 421.5 MB in the end (delta: 165.7 MB). Free memory was 233.8 MB in the beginning and 388.2 MB in the end (delta: -154.4 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.0 GB. [2021-03-12 18:03:08,333 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.87 ms. Allocated memory is still 255.9 MB. Free memory was 236.3 MB in the beginning and 234.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.11 ms. Allocated memory is still 255.9 MB. Free memory was 234.7 MB in the beginning and 233.9 MB in the end (delta: 878.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 234.29 ms. Allocated memory is still 255.9 MB. Free memory was 233.8 MB in the beginning and 233.8 MB in the end (delta: 336 B). Peak memory consumption was 17.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5508.05 ms. Allocated memory was 255.9 MB in the beginning and 421.5 MB in the end (delta: 165.7 MB). Free memory was 233.8 MB in the beginning and 388.2 MB in the end (delta: -154.4 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 707, positive: 514, positive conditional: 514, positive unconditional: 0, negative: 193, negative conditional: 193, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 539, positive: 514, positive conditional: 514, positive unconditional: 0, negative: 25, negative conditional: 25, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 539, positive: 510, positive conditional: 0, positive unconditional: 510, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 55, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 55, positive: 52, positive conditional: 0, positive unconditional: 52, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 13, negative conditional: 11, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 165, positive: 27, positive conditional: 21, positive unconditional: 7, negative: 138, negative conditional: 84, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 539, positive: 457, positive conditional: 0, positive unconditional: 457, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 55, unknown conditional: 0, unknown unconditional: 55] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 56, Positive conditional cache size: 3, Positive unconditional cache size: 53, Negative cache size: 13, Negative conditional cache size: 11, Negative unconditional cache size: 2, SemanticConditionEliminator.Independence Queries: [ total: 129, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 125, negative conditional: 47, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 129, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 125, negative conditional: 47, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 13, negative conditional: 11, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 165, positive: 27, positive conditional: 21, positive unconditional: 7, negative: 138, negative conditional: 84, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 129, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 114, negative conditional: 36, negative unconditional: 78, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 56, Positive conditional cache size: 3, Positive unconditional cache size: 53, Negative cache size: 13, Negative conditional cache size: 11, Negative unconditional cache size: 2, Eliminated conditions: 78, SemanticConditionEliminator.Independence Queries: [ total: 129, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 125, negative conditional: 47, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 129, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 125, negative conditional: 47, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 13, negative conditional: 11, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 165, positive: 27, positive conditional: 21, positive unconditional: 7, negative: 138, negative conditional: 84, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 129, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 114, negative conditional: 36, negative unconditional: 78, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 56, Positive conditional cache size: 3, Positive unconditional cache size: 53, Negative cache size: 13, Negative conditional cache size: 11, Negative unconditional cache size: 2, Eliminated conditions: 78, SemanticConditionEliminator.Independence Queries: [ total: 129, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 125, negative conditional: 47, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 129, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 125, negative conditional: 47, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 13, negative conditional: 11, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 165, positive: 27, positive conditional: 21, positive unconditional: 7, negative: 138, negative conditional: 84, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 129, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 114, negative conditional: 36, negative unconditional: 78, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 56, Positive conditional cache size: 3, Positive unconditional cache size: 53, Negative cache size: 13, Negative conditional cache size: 11, Negative unconditional cache size: 2, Eliminated conditions: 78, SemanticConditionEliminator.Independence Queries: [ total: 129, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 125, negative conditional: 47, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 129, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 125, negative conditional: 47, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 13, negative conditional: 11, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 165, positive: 27, positive conditional: 21, positive unconditional: 7, negative: 138, negative conditional: 84, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 129, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 114, negative conditional: 36, negative unconditional: 78, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 56, Positive conditional cache size: 3, Positive unconditional cache size: 53, Negative cache size: 13, Negative conditional cache size: 11, Negative unconditional cache size: 2, Eliminated conditions: 78, SemanticConditionEliminator.Independence Queries: [ total: 129, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 125, negative conditional: 47, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 129, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 125, negative conditional: 47, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 13, negative conditional: 11, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 165, positive: 27, positive conditional: 21, positive unconditional: 7, negative: 138, negative conditional: 84, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 129, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 114, negative conditional: 36, negative unconditional: 78, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 56, Positive conditional cache size: 3, Positive unconditional cache size: 53, Negative cache size: 13, Negative conditional cache size: 11, Negative unconditional cache size: 2, Eliminated conditions: 78, SemanticConditionEliminator.Independence Queries: [ total: 129, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 125, negative conditional: 47, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 129, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 125, negative conditional: 47, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 13, negative conditional: 11, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 165, positive: 27, positive conditional: 21, positive unconditional: 7, negative: 138, negative conditional: 84, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 129, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 114, negative conditional: 36, negative unconditional: 78, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 56, Positive conditional cache size: 3, Positive unconditional cache size: 53, Negative cache size: 13, Negative conditional cache size: 11, Negative unconditional cache size: 2, Eliminated conditions: 78, SemanticConditionEliminator.Independence Queries: [ total: 129, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 125, negative conditional: 47, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 129, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 125, negative conditional: 47, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 13, negative conditional: 11, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 165, positive: 27, positive conditional: 21, positive unconditional: 7, negative: 138, negative conditional: 84, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 129, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 114, negative conditional: 36, negative unconditional: 78, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 56, Positive conditional cache size: 3, Positive unconditional cache size: 53, Negative cache size: 13, Negative conditional cache size: 11, Negative unconditional cache size: 2, Eliminated conditions: 78 ], Maximal queried relation: 7, Independence queries for same thread: 168 - 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 3 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5396.4ms, OverallIterations: 7, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.0ms, PartialOrderReductionTime: 1745.8ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 56, 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: 47.4ms SsaConstructionTime, 242.7ms SatisfiabilityAnalysisTime, 1977.8ms InterpolantComputationTime, 368 NumberOfCodeBlocks, 368 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 356 ConstructedInterpolants, 0 QuantifiedInterpolants, 2057 SizeOfPredicates, 15 NumberOfNonLiveVariables, 488 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 263/387 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...