/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth07.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d310483fe8b4879eee5de19363f50e4b839cc4ec-d310483 [2021-06-24 19:22:32,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-24 19:22:32,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-24 19:22:32,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-24 19:22:32,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random521.epf [2021-06-24 19:22:32,681 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-24 19:22:32,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-24 19:22:32,681 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-24 19:22:32,682 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-24 19:22:32,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-24 19:22:32,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-24 19:22:32,684 INFO L138 SettingsManager]: * Use SBE=true [2021-06-24 19:22:32,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-24 19:22:32,684 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-24 19:22:32,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-24 19:22:32,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-24 19:22:32,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-24 19:22:32,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-24 19:22:32,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-24 19:22:32,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-24 19:22:32,685 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-24 19:22:32,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-24 19:22:32,685 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-24 19:22:32,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-24 19:22:32,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-24 19:22:32,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-24 19:22:32,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-24 19:22:32,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-24 19:22:32,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 19:22:32,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-24 19:22:32,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-24 19:22:32,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-24 19:22:32,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-24 19:22:32,687 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-24 19:22:32,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-24 19:22:32,687 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-24 19:22:32,687 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-24 19:22:32,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-24 19:22:32,687 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-24 19:22:32,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-24 19:22:32,687 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-24 19:22:32,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-24 19:22:32,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-24 19:22:32,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-24 19:22:32,974 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-24 19:22:32,975 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-24 19:22:32,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth07.bpl [2021-06-24 19:22:32,976 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth07.bpl' [2021-06-24 19:22:32,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-24 19:22:32,993 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-24 19:22:32,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-24 19:22:32,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-24 19:22:32,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-24 19:22:33,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:22:32" (1/1) ... [2021-06-24 19:22:33,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:22:32" (1/1) ... [2021-06-24 19:22:33,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-24 19:22:33,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-24 19:22:33,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-24 19:22:33,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-24 19:22:33,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:22:32" (1/1) ... [2021-06-24 19:22:33,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:22:32" (1/1) ... [2021-06-24 19:22:33,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:22:32" (1/1) ... [2021-06-24 19:22:33,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:22:32" (1/1) ... [2021-06-24 19:22:33,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:22:32" (1/1) ... [2021-06-24 19:22:33,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:22:32" (1/1) ... [2021-06-24 19:22:33,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:22:32" (1/1) ... [2021-06-24 19:22:33,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-24 19:22:33,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-24 19:22:33,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-24 19:22:33,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-24 19:22:33,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:22:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 19:22:33,085 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-06-24 19:22:33,086 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-06-24 19:22:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-06-24 19:22:33,086 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-06-24 19:22:33,086 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-06-24 19:22:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-06-24 19:22:33,086 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-24 19:22:33,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-24 19:22:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-24 19:22:33,087 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-24 19:22:33,305 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-24 19:22:33,305 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-24 19:22:33,306 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-06-24 19:22:33,307 INFO L202 PluginConnector]: Adding new model bluetooth07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 07:22:33 BoogieIcfgContainer [2021-06-24 19:22:33,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-24 19:22:33,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-24 19:22:33,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-24 19:22:33,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-24 19:22:33,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:22:32" (1/2) ... [2021-06-24 19:22:33,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75137c1c and model type bluetooth07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 07:22:33, skipping insertion in model container [2021-06-24 19:22:33,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 07:22:33" (2/2) ... [2021-06-24 19:22:33,312 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth07.bpl [2021-06-24 19:22:33,315 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-24 19:22:33,316 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-24 19:22:33,316 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-24 19:22:33,316 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-24 19:22:33,366 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-24 19:22:33,381 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-24 19:22:33,484 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 19:22:33,485 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 19:22:33,486 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 19:22:33,486 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 19:22:33,486 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 19:22:33,486 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 19:22:33,486 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 19:22:33,486 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork6======== [2021-06-24 19:22:33,591 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:22:33,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:22:33,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1302914758, now seen corresponding path program 1 times [2021-06-24 19:22:33,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:22:33,601 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897318718] [2021-06-24 19:22:33,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:22:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:22:33,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 19:22:33,699 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:22:33,699 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897318718] [2021-06-24 19:22:33,699 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897318718] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 19:22:33,700 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 19:22:33,700 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 19:22:33,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407656632] [2021-06-24 19:22:33,703 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 19:22:33,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:22:33,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 19:22:33,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 19:22:33,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:22:33,713 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:22:33,714 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 19:22:33,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:22:34,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:34,046 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-24 19:22:34,046 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:22:34,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:22:34,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1584491095, now seen corresponding path program 1 times [2021-06-24 19:22:34,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:22:34,050 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022229682] [2021-06-24 19:22:34,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:22:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:22:34,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 19:22:34,084 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:22:34,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022229682] [2021-06-24 19:22:34,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022229682] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 19:22:34,084 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 19:22:34,084 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 19:22:34,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768052274] [2021-06-24 19:22:34,086 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 19:22:34,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:22:34,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 19:22:34,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 19:22:34,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:22:34,088 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:22:34,088 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 19:22:34,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:34,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:22:34,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:34,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:34,418 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-24 19:22:34,418 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:22:34,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:22:34,419 INFO L82 PathProgramCache]: Analyzing trace with hash 167626605, now seen corresponding path program 1 times [2021-06-24 19:22:34,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:22:34,420 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821429547] [2021-06-24 19:22:34,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:22:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:22:34,529 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-24 19:22:34,529 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:22:34,529 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821429547] [2021-06-24 19:22:34,529 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821429547] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 19:22:34,529 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272907427] [2021-06-24 19:22:34,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 19:22:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:22:34,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 20 conjunts are in the unsatisfiable core [2021-06-24 19:22:34,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-24 19:22:34,898 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-24 19:22:34,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272907427] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 19:22:34,898 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-24 19:22:34,898 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-06-24 19:22:34,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211967877] [2021-06-24 19:22:34,899 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-24 19:22:34,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:22:34,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-24 19:22:34,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-06-24 19:22:34,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:22:34,901 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:22:34,901 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 19:22:34,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:34,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:34,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:22:35,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:35,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:35,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-24 19:22:35,461 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 19:22:35,462 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:22:35,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:22:35,462 INFO L82 PathProgramCache]: Analyzing trace with hash 2061252318, now seen corresponding path program 1 times [2021-06-24 19:22:35,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:22:35,463 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322374827] [2021-06-24 19:22:35,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:22:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:22:35,587 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-24 19:22:35,587 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:22:35,587 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322374827] [2021-06-24 19:22:35,587 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322374827] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 19:22:35,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936699426] [2021-06-24 19:22:35,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 19:22:35,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:22:35,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 34 conjunts are in the unsatisfiable core [2021-06-24 19:22:35,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-24 19:22:35,823 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-24 19:22:35,823 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936699426] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 19:22:35,823 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-24 19:22:35,823 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-06-24 19:22:35,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086297611] [2021-06-24 19:22:35,824 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-24 19:22:35,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:22:35,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-24 19:22:35,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-06-24 19:22:35,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:22:35,825 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:22:35,825 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 14 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 19:22:35,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:35,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:35,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-24 19:22:35,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:22:37,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-24 19:22:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-24 19:22:37,559 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 19:22:37,560 INFO L430 AbstractCegarLoop]: === Iteration 5 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:22:37,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:22:37,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1329817983, now seen corresponding path program 1 times [2021-06-24 19:22:37,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:22:37,560 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983787099] [2021-06-24 19:22:37,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:22:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:22:37,721 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-24 19:22:37,722 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:22:37,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983787099] [2021-06-24 19:22:37,722 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983787099] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 19:22:37,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23170052] [2021-06-24 19:22:37,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 19:22:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:22:37,760 WARN L261 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 59 conjunts are in the unsatisfiable core [2021-06-24 19:22:37,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-24 19:22:37,902 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-24 19:22:37,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23170052] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 19:22:37,902 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-24 19:22:37,902 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-06-24 19:22:37,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594002861] [2021-06-24 19:22:37,903 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-24 19:22:37,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:22:37,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-24 19:22:37,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2021-06-24 19:22:37,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:22:37,903 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:22:37,904 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 16 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 19:22:37,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:37,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:37,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-24 19:22:37,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-24 19:22:37,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:22:55,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:55,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:55,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-24 19:22:55,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-24 19:22:55,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-24 19:22:55,388 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 19:22:55,389 INFO L430 AbstractCegarLoop]: === Iteration 6 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:22:55,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:22:55,390 INFO L82 PathProgramCache]: Analyzing trace with hash 591867946, now seen corresponding path program 1 times [2021-06-24 19:22:55,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:22:55,390 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127365004] [2021-06-24 19:22:55,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:22:55,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:22:55,545 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 17 proven. 19 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-24 19:22:55,546 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:22:55,546 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127365004] [2021-06-24 19:22:55,546 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127365004] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 19:22:55,546 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379804940] [2021-06-24 19:22:55,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-06-24 19:22:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:22:55,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 48 conjunts are in the unsatisfiable core [2021-06-24 19:22:55,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-24 19:22:55,779 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 17 proven. 19 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-24 19:22:55,780 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379804940] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 19:22:55,780 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-24 19:22:55,780 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-06-24 19:22:55,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103991504] [2021-06-24 19:22:55,792 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-24 19:22:55,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:22:55,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-24 19:22:55,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=56, Unknown=0, NotChecked=0, Total=110 [2021-06-24 19:22:55,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:22:55,793 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:22:55,793 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 19:22:55,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:55,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:55,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-24 19:22:55,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-24 19:22:55,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-24 19:22:55,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:26:13,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:26:13,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:26:13,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-24 19:26:13,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-24 19:26:13,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-24 19:26:13,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-24 19:26:13,729 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-06-24 19:26:13,741 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadThread1of1ForFork6 was SAFE (1/8) [2021-06-24 19:26:13,742 INFO L255 AbstractCegarLoop]: Starting to check reachability of 8 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-24 19:26:13,750 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 19:26:13,750 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 19:26:13,750 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 19:26:13,750 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 19:26:13,750 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 19:26:13,750 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 19:26:13,750 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 19:26:13,750 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start========